31:Tc56b,embed({ "$schema": "https://vega.github.io/schema/vega/v5.json", "width": 600, "height":600, "background":"black", "signals":[ { "name":"grid", "value":{"width":15, "height":15} }, { "name":"blockSize", "init":"min(width,height)/max(grid.width,grid.height)" }, { "name":"rangeWidthDelta", "update":"(width - blockSize*grid.width)/2" }, { "name":"rangeHeightDelta", "update":"(height - blockSize*grid.height)/2" }, { "name":"sizeFactor", "init":"blockSize*15/600" }, { "name":"score", "init":"0", "on": [ {"events":{"signal":"testEaten"},"update":"testEaten ? score + 10 : score"}, {"events":{"signal":"testPowerEaten"},"update":"testPowerEaten ? score + 50 : score"}, {"events":{"signal":"testEatenGhost"},"update":"testEatenGhost ? score + 100 : score"}, {"events":{"signal":"loose"}, "force":true ,"update":"restart ? 0 : score"} ] }, { "name":"highScore", "init":"0", "on":[ {"events":{"signal":"score"}, "update":"max(score,highScore)"} ] }, { "name":"key", "on":[ { "events":"window:keydown", "update":"event.code" }, { "events":{"signal":"restart"}, "force": true, "update":"null" } ] }, { "name":"pacManXOffset", "update":"key === 'ArrowRight' ? 1 : key === 'ArrowLeft' ? -1 : 0" }, { "name":"pacManYOffset", "update":"key === 'ArrowUp' ? -1 : key === 'ArrowDown' ? 1 : 0" }, { "name":"pacManX", "init":"7", "on":[ {"events":{"type":"timer", "throttle": 500}, "update":"(!restart && pacManCanMoveX) ?((pacManXOffset <0 && pacManX <= 0) ? grid.width - 1 : ((pacManXOffset > 0 && pacManX >= grid.width -1) ? 0 : (pacManX + pacManXOffset))) : pacManX"}, {"events":{"signal":"restart"}, "force": true, "update":"7"} ] }, { "name":"pacManY", "init":"7", "on":[ {"events":{"type":"timer", "throttle": 500}, "update":"!restart && pacManCanMoveY ?((pacManYOffset <0 && pacManY <= 0) ? grid.height-1 : (pacManYOffset > 0 && pacManY >= grid.height - 1)? 0 : pacManY + pacManYOffset) : pacManY"}, {"events":{"signal":"restart"}, "force": true, "update":"7"} ] }, { "name":"pacManIsOpen", "init":"true", "on":[ {"events":{"type":"timer", "throttle": 500}, "update":"!pacManIsOpen"} ] }, { "name":"pacManHasWallX", "update":"(pacManXOffset<=0 && indata('walls', 'key', pacManX + '-' + pacManY + '-true')) || (pacManXOffset>=0 && indata('walls', 'key', (pacManX + 1) + '-' + pacManY + '-true')) ? true : false" }, { "name":"pacManHasWallY", "update":"(pacManYOffset<=0 && indata('walls', 'key', pacManX + '-' + pacManY + '-false')) || (pacManYOffset>=0 && indata('walls', 'key', pacManX + '-' + (pacManY+1) + '-false')) ? true : false" }, { "name":"pacManCanMoveX", "update":"!pacManHasWallX && !pacManHasGhost" }, { "name":"pacManCanMoveY", "update":"!pacManHasWallY && !pacManHasGhost" }, { "name":"pacManHasGhost", "update":"!superPower && (((pacManX + pacManXOffset === gRedX) && (pacManY + pacManYOffset === gRedY)) || ((pacManX + pacManXOffset === gBlueX) && (pacManY + pacManYOffset === gBlueY)) || ((pacManX + pacManXOffset === gGreenX) && (pacManY + pacManYOffset === gGreenY)) || ((pacManX + pacManXOffset === gOrangeX) && (pacManY + pacManYOffset === gOrangeY)))" }, { "name":"win", "update":"length(data('gums')) + length(data('powerGums')) === length(data('eatenGums'))" }, { "name":"loose", "on":[{"events":{"type":"timer", "throttle": 400 }, "update":"!superPower && ((gRedX === pacManX && gRedY === pacManY) || (gBlueX === pacManX && gBlueY === pacManY) || (gGreenX === pacManX && gGreenY === pacManY) || (gOrangeX === pacManX && gOrangeY === pacManY))"}] }, { "name":"restart", "update":"win === true || loose === true" }, { "name":"testEaten", "update":"!restart && (indata('gums', 'key', pacManX+'-'+pacManY) && !indata('eatenGums', 'key', pacManX+'-'+pacManY)) ? {x:pacManX, y:pacManY, key:pacManX+'-'+pacManY} : null" }, { "name":"testPowerEaten", "update":"!restart && (indata('powerGums', 'key', pacManX+'-'+pacManY) && !indata('eatenGums', 'key', pacManX+'-'+pacManY)) ? {x:pacManX, y:pacManY, key:pacManX+'-'+pacManY} : null" }, { "name":"superPower", "init":"0", "on": [{"events":{"type":"timer", "throttle": 1000}, "force": true, "update":"superPower > 0 ? superPower - 1 : 0"}, {"events":{"signal":"testPowerEaten"}, "update":"testPowerEaten? 15 : superPower"}, {"events":{"signal":"restart"}, "force": true, "update":"0"}] } , { "name":"testEatenGhost", "update":"superPower ? ((gRedX === pacManX && gRedY === pacManY) ? gRed : (gBlueX === pacManX && gBlueY === pacManY) ? gBlue : (gGreenX === pacManX && gGreenY === pacManY) ? gGreen : (gOrangeX === pacManX && gOrangeY === pacManY) ? gOrange : null) : null" }, { "name":"gRed", "init":"data('ghosts')[0]" }, { "name":"gRedDelta", "update":"{dx:pacManX-gRedX, dy: pacManY-gRedY}" }, { "name":"gRedLastDir", "update":"gRedDirection" }, { "name":"gRedPreferences", "update":"setdata('gRedDecisions',[{d:'up', i: (gRedLastDir === 'down' ? 4 : (abs(gRedDelta.dy) > abs(gRedDelta.dx) ? (gRedDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gRedDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gRedLastDir === 'up' ? 4 : (abs(gRedDelta.dy) > abs(gRedDelta.dx) ? (gRedDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gRedDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gRedLastDir === 'right' ? 4 : (abs(gRedDelta.dy) < abs(gRedDelta.dx) ? (gRedDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gRedDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gRedLastDir === 'left' ? 4 : abs(gRedDelta.dy) < abs(gRedDelta.dx) ? (gRedDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gRedDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gRedHasWallX", "update":"(gRedOffsetX<0 && !gRedCanLeft) || (gRedOffsetX>0 && !gRedCanRight) ? true : false" }, { "name":"gRedHasWallY", "update":"(gRedOffsetY<0 && !gRedCanUp) || (gRedOffsetY>0 && !gRedCanDown) ? true : false" }, { "name":"gRedCanLeft", "update":"indata('walls', 'key', gRedX + '-' + gRedY + '-true') ? false : true" }, { "name":"gRedCanUp", "update":"indata('walls', 'key', gRedX + '-' + gRedY + '-false')? false : true" }, { "name":"gRedCanRight", "update":"indata('walls', 'key', (gRedX + 1) + '-' + gRedY + '-true') ? false : true" }, { "name":"gRedCanDown", "update":"indata('walls', 'key', gRedX + '-' + (gRedY+1) + '-false')? false : true" }, { "name":"gRedHasPacMan", "update":"superPower && ((gRedX + gRedOffsetX === pacManX) && (gRedY + gRedOffsetY === pacManY))" }, { "name":"gRedBlocked", "on": [ { "events":{"signal":"gRedProposedDirection"}, "force": true, "update":"!gRedProposedDirection ||(gRedProposedDirection === 'up' && !gRedCanUp) || (gRedProposedDirection === 'down' && !gRedCanDown) || (gRedProposedDirection === 'left' && !gRedCanLeft) || (gRedProposedDirection === 'right' && !gRedCanRight) ? true : false" } ] }, { "name":"gRedTry", "on": [ { "events":{"type":"timer", "throttle": 350}, "update":"gRedBlocked && gRedTry <3 ? gRedTry+1 : 0" } ] }, { "name":"gRedDecision", "update":"data('gRedDecisions')[gRedTry]" }, { "name":"gRedProposedDirection", "on": [{"events":{"signal":"gRedDecision"}, "force": true, "update":"gRedDecision ? gRedDecision.d : 'none'"}] }, { "name":"gRedDirection", "update":"gRedProposedDirection && !gRedBlocked ? gRedProposedDirection : gRedDirection" }, { "name":"gRedOffsetX", "update":"gRedDirection === 'left'? - 1 : gRedDirection === 'right'? 1 : 0" }, { "name":"gRedOffsetY", "update":"gRedDirection === 'up'? -1 : gRedDirection === 'down' ? 1 : 0" }, { "name":"gRedX", "init":"gRed.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'red') ? 6 : (!restart && !gRedHasWallX && !gRedHasPacMan ? ((gRedOffsetX <0 && gRedX <= 0) ? grid.width - 1 : ((gRedOffsetX > 0 && gRedX >= grid.width -1) ? 0 : (gRedX + gRedOffsetX))) : gRedX)" }, { "events":{"signal":"restart"}, "update":"gRed.x", "force": true } ] }, { "name":"gRedY", "init":"gRed.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'red') ? 7 : (!restart && !gRedHasWallY && !gRedHasPacMan ? ((gRedOffsetY <0 && gRedY <= 0) ? grid.height-1 : (gRedOffsetY > 0 && gRedY >= grid.height - 1)? 0 : gRedY + gRedOffsetY) : gRedY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gRed.y" } ] }, { "name":"gBlue", "init":"data('ghosts')[1]" }, { "name":"gBlueDelta", "update":"{dx:pacManX-gBlueX, dy: pacManY-gBlueY}" }, { "name":"gBlueLastDir", "update":"gBlueDirection" }, { "name":"gBluePreferences", "update":"setdata('gBlueDecisions',[{d:'up', i: (gBlueLastDir === 'down' ? 4 : (abs(gBlueDelta.dy) > abs(gBlueDelta.dx) ? (gBlueDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gBlueDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gBlueLastDir === 'up' ? 4 : (abs(gBlueDelta.dy) > abs(gBlueDelta.dx) ? (gBlueDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gBlueDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gBlueLastDir === 'right' ? 4 : (abs(gBlueDelta.dy) < abs(gBlueDelta.dx) ? (gBlueDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gBlueDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gBlueLastDir === 'left' ? 4 : abs(gBlueDelta.dy) < abs(gBlueDelta.dx) ? (gBlueDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gBlueDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gBlueHasWallX", "update":"(gBlueOffsetX<0 && !gBlueCanLeft) || (gBlueOffsetX>0 && !gBlueCanRight) ? true : false" }, { "name":"gBlueHasWallY", "update":"(gBlueOffsetY<0 && !gBlueCanUp) || (gBlueOffsetY>0 && !gBlueCanDown) ? true : false" }, { "name":"gBlueHasGhost", "update":"(gBlueX == gRedX && gBlueY === gRedY)" }, { "name":"gBlueHasPacMan", "update":"superPower && ((gBlueX + gBlueOffsetX === pacManX) && (gBlueY + gBlueOffsetY === pacManY)) " }, { "name":"gBlueCanLeft", "update":"indata('walls', 'key', gBlueX + '-' + gBlueY + '-true') ? false : true" }, { "name":"gBlueCanUp", "update":"indata('walls', 'key', gBlueX + '-' + gBlueY + '-false')? false : true" }, { "name":"gBlueCanRight", "update":"indata('walls', 'key', (gBlueX + 1) + '-' + gBlueY + '-true') ? false : true" }, { "name":"gBlueCanDown", "update":"indata('walls', 'key', gBlueX + '-' + (gBlueY+1) + '-false')? false : true" }, { "name":"gBlueBlocked", "on": [ { "events":{"signal":"gBlueProposedDirection"}, "force": true, "update":"!gBlueProposedDirection || (gBlueProposedDirection === 'up' && !gBlueCanUp) || (gBlueProposedDirection === 'down' && !gBlueCanDown) || (gBlueProposedDirection === 'left' && !gBlueCanLeft) || (gBlueProposedDirection === 'right' && !gBlueCanRight) ? true : false" } ] }, { "name":"gBlueTry", "on": [ { "events":{"type":"timer", "throttle": 400}, "update":"gBlueBlocked && gBlueTry <=3 ? gBlueTry+1 : 0" } ] }, { "name":"gBlueDecision", "update":"data('gBlueDecisions')[gBlueTry]" }, { "name":"gBlueProposedDirection", "on": [{"events":{"signal":"gBlueDecision"}, "force": true, "update":"gBlueDecision ? gBlueDecision.d : 'none'"}] }, { "name":"gBlueDirection", "update":"gBlueProposedDirection && !gBlueBlocked ? gBlueProposedDirection : gBlueDirection" }, { "name":"gBlueOffsetX", "update":"gBlueDirection === 'left'? - 1 : gBlueDirection === 'right'? 1 : 0" }, { "name":"gBlueOffsetY", "update":"gBlueDirection === 'up' ? -1 : gBlueDirection === 'down' ? 1 : 0" }, { "name":"gBlueX", "init":"gBlue.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'steelblue') ? 7 : (!restart && !gBlueHasWallX && !gBlueHasGhost && !gBlueHasPacMan ? ((gBlueOffsetX <0 && gBlueX <= 0) ? grid.width - 1 : ((gBlueOffsetX > 0 && gBlueX >= grid.width -1) ? 0 : (gBlueX + gBlueOffsetX))) : gBlueX)" }, { "events":{"signal":"restart"}, "update":"gBlue.x", "force": true } ] }, { "name":"gBlueY", "init":"gBlue.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'steelblue') ? 7 : (!restart && !gBlueHasWallY && !gBlueHasGhost && !gBlueHasPacMan ? ((gBlueOffsetY <0 && gBlueY <= 0) ? grid.height-1 : (gBlueOffsetY > 0 && gBlueY >= grid.height - 1)? 0 : gBlueY + gBlueOffsetY) : gBlueY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gBlue.y" } ] }, { "name":"gGreen", "init":"data('ghosts')[2]" }, { "name":"gGreenDelta", "update":"{dx:pacManX-gGreenX, dy: pacManY-gGreenY}" }, { "name":"gGreenLastDir", "update":"gGreenDirection" }, { "name":"gGreenPreferences", "update":"setdata('gGreenDecisions',[{d:'up', i: (gGreenLastDir === 'down' ? 4 : (abs(gGreenDelta.dy) > abs(gGreenDelta.dx) ? (gGreenDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gGreenDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gGreenLastDir === 'up' ? 4 : (abs(gGreenDelta.dy) > abs(gGreenDelta.dx) ? (gGreenDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gGreenDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gGreenLastDir === 'right' ? 4 : (abs(gGreenDelta.dy) < abs(gGreenDelta.dx) ? (gGreenDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gGreenDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gGreenLastDir === 'left' ? 4 : abs(gGreenDelta.dy) < abs(gGreenDelta.dx) ? (gGreenDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gGreenDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gGreenHasWallX", "update":"(gGreenOffsetX<0 && !gGreenCanLeft) || (gGreenOffsetX>0 && !gGreenCanRight) ? true : false" }, { "name":"gGreenHasWallY", "update":"(gGreenOffsetY<0 && !gGreenCanUp) || (gGreenOffsetY>0 && !gGreenCanDown) ? true : false" }, { "name":"gGreenHasGhost", "update":"(gGreenX === gRedX && gGreenY === gRedY) || (gGreenX === gBlueX && gGreenY+gGreenOffsetY === gBlueY)" }, { "name":"gGreenHasPacMan", "update":"superPower && ((gGreenX + gGreenOffsetX === pacManX) && (gGreenY + gGreenOffsetY === pacManY)) " }, { "name":"gGreenCanLeft", "update":"indata('walls', 'key', gGreenX + '-' + gGreenY + '-true') ? false : true" }, { "name":"gGreenCanUp", "update":"indata('walls', 'key', gGreenX + '-' + gGreenY + '-false')? false : true" }, { "name":"gGreenCanRight", "update":"indata('walls', 'key', (gGreenX + 1) + '-' + gGreenY + '-true') ? false : true" }, { "name":"gGreenCanDown", "update":"indata('walls', 'key', gGreenX + '-' + (gGreenY+1) + '-false')? false : true" }, { "name":"gGreenBlocked", "on": [ { "events":{"signal":"gGreenProposedDirection"}, "force": true, "update":"!gGreenProposedDirection || (gGreenProposedDirection === 'up' && !gGreenCanUp) || (gGreenProposedDirection === 'down' && !gGreenCanDown) || (gGreenProposedDirection === 'left' && !gGreenCanLeft) || (gGreenProposedDirection === 'right' && !gGreenCanRight) ? true : false" } ] }, { "name":"gGreenTry", "on": [ { "events":{"type":"timer", "throttle": 400}, "update":"gGreenBlocked && gGreenTry <=3 ? gGreenTry+1 : 0" } ] }, { "name":"gGreenDecision", "update":"data('gGreenDecisions')[gGreenTry]" }, { "name":"gGreenProposedDirection", "on": [{"events":{"signal":"gGreenDecision"}, "force": true, "update":"gGreenDecision ? gGreenDecision.d : 'none'"}] }, { "name":"gGreenDirection", "update":"gGreenProposedDirection && !gGreenBlocked ? gGreenProposedDirection : gGreenDirection" }, { "name":"gGreenOffsetX", "update":"gGreenDirection === 'left'? - 1 : gGreenDirection === 'right'? 1 : 0" }, { "name":"gGreenOffsetY", "update":"gGreenDirection === 'up' ? -1 : gGreenDirection === 'down' ? 1 : 0" }, { "name":"gGreenX", "init":"gGreen.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'green') ? 8 : (!restart && !gGreenHasWallX && !gGreenHasGhost && !gGreenHasPacMan ? ((gGreenOffsetX <0 && gGreenX <= 0) ? grid.width - 1 : ((gGreenOffsetX > 0 && gGreenX >= grid.width -1) ? 0 : (gGreenX + gGreenOffsetX))) : gGreenX)" }, { "events":{"signal":"restart"}, "update":"gGreen.x", "force": true } ] }, { "name":"gGreenY", "init":"gGreen.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'green') ? 7 : (!restart && !gGreenHasWallY && !gGreenHasGhost && !gGreenHasPacMan ? ((gGreenOffsetY <0 && gGreenY <= 0) ? grid.height-1 : (gGreenOffsetY > 0 && gGreenY >= grid.height - 1)? 0 : gGreenY + gGreenOffsetY) : gGreenY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gGreen.y" } ] }, { "name":"gOrange", "init":"data('ghosts')[3]" }, { "name":"gOrangeDelta", "update":"{dx:pacManX-gOrangeX, dy: pacManY-gOrangeY}" }, { "name":"gOrangeLastDir", "update":"gOrangeDirection" }, { "name":"gOrangePreferences", "update":"setdata('gOrangeDecisions',[{d:'up', i: (gOrangeLastDir === 'down' ? 4 : (abs(gOrangeDelta.dy) > abs(gOrangeDelta.dx) ? (gOrangeDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gOrangeDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gOrangeLastDir === 'up' ? 4 : (abs(gOrangeDelta.dy) > abs(gOrangeDelta.dx) ? (gOrangeDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gOrangeDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gOrangeLastDir === 'right' ? 4 : (abs(gOrangeDelta.dy) < abs(gOrangeDelta.dx) ? (gOrangeDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gOrangeDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gOrangeLastDir === 'left' ? 4 : abs(gOrangeDelta.dy) < abs(gOrangeDelta.dx) ? (gOrangeDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gOrangeDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gOrangeHasWallX", "update":"(gOrangeOffsetX<0 && !gOrangeCanLeft) || (gOrangeOffsetX>0 && !gOrangeCanRight) ? true : false" }, { "name":"gOrangeHasWallY", "update":"(gOrangeOffsetY<0 && !gOrangeCanUp) || (gOrangeOffsetY>0 && !gOrangeCanDown) ? true : false" }, { "name":"gOrangeHasGhost", "update":"(gOrangeX === gRedX && gOrangeY === gRedY) || (gOrangeX === gBlueX && gOrangeY === gBlueY) || (gOrangeX === gGreenX && gOrangeY === gGreenY)" }, { "name":"gOrangeCanLeft", "update":"indata('walls', 'key', gOrangeX + '-' + gOrangeY + '-true') ? false : true" }, { "name":"gOrangeCanUp", "update":"indata('walls', 'key', gOrangeX + '-' + gOrangeY + '-false')? false : true" }, { "name":"gOrangeCanRight", "update":"indata('walls', 'key', (gOrangeX + 1) + '-' + gOrangeY + '-true') ? false : true" }, { "name":"gOrangeCanDown", "update":"indata('walls', 'key', gOrangeX + '-' + (gOrangeY+1) + '-false')? false : true" }, { "name":"gOrangeBlocked", "on": [ { "events":{"signal":"gOrangeProposedDirection"}, "force": true, "update":"!gOrangeProposedDirection || (gOrangeProposedDirection === 'up' && !gOrangeCanUp) || (gOrangeProposedDirection === 'down' && !gOrangeCanDown) || (gOrangeProposedDirection === 'left' && !gOrangeCanLeft) || (gOrangeProposedDirection === 'right' && !gOrangeCanRight) ? true : false" } ] }, { "name":"gOrangeTry", "on": [ { "events":{"type":"timer", "throttle": 400}, "update":"gOrangeBlocked && gOrangeTry <=3 ? gOrangeTry+1 : 0" } ] }, { "name":"gOrangeHasPacMan", "update":"superPower && ((gOrangeX + gOrangeOffsetX === pacManX) && (gOrangeY + gOrangeOffsetY === pacManY)) " }, { "name":"gOrangeDecision", "update":"data('gOrangeDecisions')[gOrangeTry]" }, { "name":"gOrangeProposedDirection", "on": [{"events":{"signal":"gOrangeDecision"}, "force": true, "update":"gOrangeDecision ? gOrangeDecision.d : 'none'"}] }, { "name":"gOrangeDirection", "update":"gOrangeProposedDirection && !gOrangeBlocked ? gOrangeProposedDirection : gOrangeDirection" }, { "name":"gOrangeOffsetX", "update":"gOrangeDirection === 'left'? - 1 : gOrangeDirection === 'right'? 1 : 0" }, { "name":"gOrangeOffsetY", "update":"gOrangeDirection === 'up' ? -1 : gOrangeDirection === 'down' ? 1 : 0" }, { "name":"gOrangeX", "init":"gOrange.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'orange') ? 7 : (!restart && !gOrangeHasWallX && !gOrangeHasGhost && !gOrangeHasPacMan ? 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"stop": { "signal": "grid.height" }, "step": 1 } ] } ] })33:T4b1,md `- "grid" contains the grid size (the number of blocks horizontally and vertically) - "blockSize" will represent the size of a block proportionally to the width and height and of the visualization and the size of the grid. As we want the grid to fit the visualization, we divide the minimum size between the width and height of the visualization by the maximum size of the grid. - "rangeWidthDelta" and "rangeHeightDelta" will represent the half of unoccupied space in the grid when "width" and "height" of the visualization or "width" and "height" of the grid are not the same. This will ensure that our gaming area is always centered in the visualization - "sizeFactor" is very useful to create responsive labels or symbols. Using the "blockSize" as reference in a proportion with numbers that will set the factor to 1 when developing your visualization. You will then multiply properties related to size (such as "fontSize", or "symbolSize") by that factor to keep them in the same proportions as the designing time. Sometimes it’s also useful to use a min and or a max value for that factor, to ensure to avoid objects becoming too big or too small. 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"y":13, "vertical":false}, {"x":10, "y":13, "vertical":false}, {"x":9, "y":14, "vertical":false}, {"x":10, "y":14, "vertical":false}, {"x":9, "y":13, "vertical":true}, {"x":11, "y":13, "vertical":true}, {"x":14, "y":13, "vertical":true}, {"x":14, "y":13, "vertical":false}, {"x":14, "y":14, "vertical":false}, {"x":11, "y":11, "vertical":false}, {"x":13, "y":11, "vertical":false}, {"x":11, "y":12, "vertical":false}, {"x":12, "y":11, "vertical":false}, {"x":12, "y":13, "vertical":false}, {"x":13, "y":12, "vertical":false}, {"x":14, "y":11, "vertical":true}, {"x":12, "y":12, "vertical":true}, {"x":11, "y":11, "vertical":true}, {"x":13, "y":12, "vertical":true} ], "transform":[ { "type":"formula", "expr":"datum.x+'-'+datum.y+'-'+datum.vertical", "as":"key" } ] } ] })3c:T10f3,([{ "name":"gRed", "init":"data('ghosts')[0]" }, { "name":"gRedDelta", "update":"{dx:pacManX-gRedX, dy: pacManY-gRedY}" }, { "name":"gRedLastDir", "update":"gRedDirection" }, { "name":"gRedPreferences", "update":"setdata('gRedDecisions',[{d:'up', i: (gRedLastDir === 'down' ? 4 : (abs(gRedDelta.dy) > abs(gRedDelta.dx) ? (gRedDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gRedDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gRedLastDir === 'up' ? 4 : (abs(gRedDelta.dy) > abs(gRedDelta.dx) ? (gRedDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gRedDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gRedLastDir === 'right' ? 4 : (abs(gRedDelta.dy) < abs(gRedDelta.dx) ? (gRedDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gRedDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gRedLastDir === 'left' ? 4 : abs(gRedDelta.dy) < abs(gRedDelta.dx) ? (gRedDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gRedDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gRedHasWallX", "update":"(gRedOffsetX<0 && !gRedCanLeft) || (gRedOffsetX>0 && !gRedCanRight) ? true : false" }, { "name":"gRedHasWallY", "update":"(gRedOffsetY<0 && !gRedCanUp) || (gRedOffsetY>0 && !gRedCanDown) ? true : false" }, { "name":"gRedCanLeft", "update":"indata('walls', 'key', gRedX + '-' + gRedY + '-true') ? false : true" }, { "name":"gRedCanUp", "update":"indata('walls', 'key', gRedX + '-' + gRedY + '-false')? false : true" }, { "name":"gRedCanRight", "update":"indata('walls', 'key', (gRedX + 1) + '-' + gRedY + '-true') ? false : true" }, { "name":"gRedCanDown", "update":"indata('walls', 'key', gRedX + '-' + (gRedY+1) + '-false')? false : true" }, { "name":"gRedHasPacMan", "update":"superPower && ((gRedX + gRedOffsetX === pacManX) && (gRedY + gRedOffsetY === pacManY))" }, { "name":"gRedBlocked", "on": [ { "events":{"signal":"gRedProposedDirection"}, "force": true, "update":"!gRedProposedDirection ||(gRedProposedDirection === 'up' && !gRedCanUp) || (gRedProposedDirection === 'down' && !gRedCanDown) || (gRedProposedDirection === 'left' && !gRedCanLeft) || (gRedProposedDirection === 'right' && !gRedCanRight) ? true : false" } ] }, { "name":"gRedTry", "on": [ { "events":{"type":"timer", "throttle": 350}, "update":"gRedBlocked && gRedTry <3 ? gRedTry+1 : 0" } ] }, { "name":"gRedDecision", "update":"data('gRedDecisions')[gRedTry]" }, { "name":"gRedProposedDirection", "on": [{"events":{"signal":"gRedDecision"}, "force": true, "update":"gRedDecision ? gRedDecision.d : 'none'"}] }, { "name":"gRedDirection", "update":"gRedProposedDirection && !gRedBlocked ? gRedProposedDirection : gRedDirection" }, { "name":"gRedOffsetX", "update":"gRedDirection === 'left'? - 1 : gRedDirection === 'right'? 1 : 0" }, { "name":"gRedOffsetY", "update":"gRedDirection === 'up'? -1 : gRedDirection === 'down' ? 1 : 0" }, { "name":"gRedX", "init":"gRed.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'red') ? 6 : (!restart && !gRedHasWallX && !gRedHasPacMan ? ((gRedOffsetX <0 && gRedX <= 0) ? grid.width - 1 : ((gRedOffsetX > 0 && gRedX >= grid.width -1) ? 0 : (gRedX + gRedOffsetX))) : gRedX)" }, { "events":{"signal":"restart"}, "update":"gRed.x", "force": true } ] }, { "name":"gRedY", "init":"gRed.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'red') ? 7 : (!restart && !gRedHasWallY && !gRedHasPacMan ? ((gRedOffsetY <0 && gRedY <= 0) ? grid.height-1 : (gRedOffsetY > 0 && gRedY >= grid.height - 1)? 0 : gRedY + gRedOffsetY) : gRedY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gRed.y" } ] }])3d:T4c9,md`- "gColorOfGhost" is the object from data source ghost representing a specific ghost - "gColorOfGhosX" and "gColorOfGhostY"are the current location of the ghost. They are updated periodically - "gColorOfGhostDelta" is the delta between PacMan and a ghost - "gColorOfGhostLastDirection" stores the last direction took by the ghost - "gColorOfGhostPreferences" is the decision table - "gColorOfGhostHasWallX", "gColorOfGhostHasWallY", "gColorOfGhostCanMoveUp", "gColorOfGhostCanMoveDown", "gColorOfGhostCanMoveLeft", "gColorOfGhostCanMoveRight", "gColorOfGhostHasPacMan" handle of collision detection with walls or pacMan or other ghosts - "gColorOfGhostBlocked" checks if the proposed direction is blocking the ghost - "gColorOfGhostTry" is the desired direction decision index - "gColorOfGhostDecision" is the current decision from decisions table - "gColorOfGhostProposedDirection": the current desired direction - "gColorOfGhostDirection", "gColorOfGhostOffsetX", "gColorOfGhostOffsetY": the current validated direction and related ghost offset - "gColorOfGhostX", "gColorOfGhost": the current ghost location PacMan can eat ghosts but can also loose the game when eaten by a ghost. Other signals are added or updated: `3e:T111a,([{ "type":"symbol", "from":{"data":"ghosts"}, "encode":{ "enter":{ "size":{"signal":"pow(blockSize/20,2)"} }, "update":{ "x":{"signal":"gRedX", "offset":{"signal":"blockSize/8"}, "scale":"scaleX"}, "y":{"signal":"gRedY", "offset":{"signal":"blockSize/9"}, "scale":"scaleY"}, "shape":{"signal":"indata('eatenGhosts', 'color', datum.color) ? 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'white' :datum.color"}, "opacity":[{"test":"restart", "value": 0},{"signal":"superPower?0.8:1"}] } } }])3f:Tbb66,embed({ "$schema": "https://vega.github.io/schema/vega/v5.json", "width": 600, "height":600, "background":"black", "signals":[ { "name":"grid", "value":{"width":15, "height":15} }, { "name":"blockSize", "init":"min(width,height)/max(grid.width,grid.height)" }, { "name":"rangeWidthDelta", "update":"(width - blockSize*grid.width)/2" }, { "name":"rangeHeightDelta", "update":"(height - blockSize*grid.height)/2" }, { "name":"sizeFactor", "init":"blockSize*15/600" }, { "name":"key", "on":[ { "events":"window:keydown", "update":"event.code" }, { "events":{"signal":"restart"}, "force": true, "update":"null" } ] }, { "name":"pacManXOffset", "update":"key === 'ArrowRight' ? 1 : key === 'ArrowLeft' ? -1 : 0" }, { "name":"pacManYOffset", "update":"key === 'ArrowUp' ? -1 : key === 'ArrowDown' ? 1 : 0" }, { "name":"pacManX", "init":"7", "on":[ {"events":{"type":"timer", "throttle": 500}, "update":"(!restart && pacManCanMoveX) ?((pacManXOffset <0 && pacManX <= 0) ? grid.width - 1 : ((pacManXOffset > 0 && pacManX >= grid.width -1) ? 0 : (pacManX + pacManXOffset))) : pacManX"}, {"events":{"signal":"restart"}, "force": true, "update":"7"} ] }, { "name":"pacManY", "init":"7", "on":[ {"events":{"type":"timer", "throttle": 500}, "update":"!restart && pacManCanMoveY ?((pacManYOffset <0 && pacManY <= 0) ? grid.height-1 : (pacManYOffset > 0 && pacManY >= grid.height - 1)? 0 : pacManY + pacManYOffset) : pacManY"}, {"events":{"signal":"restart"}, "force": true, "update":"7"} ] }, { "name":"pacManIsOpen", "init":"true", "on":[ {"events":{"type":"timer", "throttle": 500}, "update":"!pacManIsOpen"} ] }, { "name":"pacManHasWallX", "update":"(pacManXOffset<=0 && indata('walls', 'key', pacManX + '-' + pacManY + '-true')) || (pacManXOffset>=0 && indata('walls', 'key', (pacManX + 1) + '-' + pacManY + '-true')) ? true : false" }, { "name":"pacManHasWallY", "update":"(pacManYOffset<=0 && indata('walls', 'key', pacManX + '-' + pacManY + '-false')) || (pacManYOffset>=0 && indata('walls', 'key', pacManX + '-' + (pacManY+1) + '-false')) ? true : false" }, { "name":"pacManCanMoveX", "update":"!pacManHasWallX && !pacManHasGhost" }, { "name":"pacManCanMoveY", "update":"!pacManHasWallY && !pacManHasGhost" }, { "name":"pacManHasGhost", "update":"!superPower && (((pacManX + pacManXOffset === gRedX) && (pacManY + pacManYOffset === gRedY)) || ((pacManX + pacManXOffset === gBlueX) && (pacManY + pacManYOffset === gBlueY)) || ((pacManX + pacManXOffset === gGreenX) && (pacManY + pacManYOffset === gGreenY)) || ((pacManX + pacManXOffset === gOrangeX) && (pacManY + pacManYOffset === gOrangeY)))" }, { "name":"win", "update":"length(data('gums')) + length(data('powerGums')) === length(data('eatenGums'))" }, { "name":"loose", "on":[{"events":{"type":"timer", "throttle": 400 }, "update":"!superPower && ((gRedX === pacManX && gRedY === pacManY) || (gBlueX === pacManX && gBlueY === pacManY) || (gGreenX === pacManX && gGreenY === pacManY) || (gOrangeX === pacManX && gOrangeY === pacManY))"}] }, { "name":"restart", "update":"win === true || loose === true" }, { "name":"testEaten", "update":"!restart && (indata('gums', 'key', pacManX+'-'+pacManY) && !indata('eatenGums', 'key', pacManX+'-'+pacManY)) ? {x:pacManX, y:pacManY, key:pacManX+'-'+pacManY} : null" }, { "name":"testPowerEaten", "update":"!restart && (indata('powerGums', 'key', pacManX+'-'+pacManY) && !indata('eatenGums', 'key', pacManX+'-'+pacManY)) ? {x:pacManX, y:pacManY, key:pacManX+'-'+pacManY} : null" }, { "name":"superPower", "init":"0", "on": [{"events":{"type":"timer", "throttle": 1000}, "force": true, "update":"superPower > 0 ? superPower - 1 : 0"}, {"events":{"signal":"testPowerEaten"}, "update":"testPowerEaten? 15 : superPower"}, {"events":{"signal":"restart"}, "force": true, "update":"0"}] } , { "name":"testEatenGhost", "update":"superPower ? ((gRedX === pacManX && gRedY === pacManY) ? gRed : (gBlueX === pacManX && gBlueY === pacManY) ? gBlue : (gGreenX === pacManX && gGreenY === pacManY) ? gGreen : (gOrangeX === pacManX && gOrangeY === pacManY) ? gOrange : null) : null" }, { "name":"gRed", "init":"data('ghosts')[0]" }, { "name":"gRedDelta", "update":"{dx:pacManX-gRedX, dy: pacManY-gRedY}" }, { "name":"gRedLastDir", "update":"gRedDirection" }, { "name":"gRedPreferences", "update":"setdata('gRedDecisions',[{d:'up', i: (gRedLastDir === 'down' ? 4 : (abs(gRedDelta.dy) > abs(gRedDelta.dx) ? (gRedDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gRedDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gRedLastDir === 'up' ? 4 : (abs(gRedDelta.dy) > abs(gRedDelta.dx) ? (gRedDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gRedDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gRedLastDir === 'right' ? 4 : (abs(gRedDelta.dy) < abs(gRedDelta.dx) ? (gRedDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gRedDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gRedLastDir === 'left' ? 4 : abs(gRedDelta.dy) < abs(gRedDelta.dx) ? (gRedDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gRedDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gRedHasWallX", "update":"(gRedOffsetX<0 && !gRedCanLeft) || (gRedOffsetX>0 && !gRedCanRight) ? true : false" }, { "name":"gRedHasWallY", "update":"(gRedOffsetY<0 && !gRedCanUp) || (gRedOffsetY>0 && !gRedCanDown) ? true : false" }, { "name":"gRedCanLeft", "update":"indata('walls', 'key', gRedX + '-' + gRedY + '-true') ? false : true" }, { "name":"gRedCanUp", "update":"indata('walls', 'key', gRedX + '-' + gRedY + '-false')? false : true" }, { "name":"gRedCanRight", "update":"indata('walls', 'key', (gRedX + 1) + '-' + gRedY + '-true') ? false : true" }, { "name":"gRedCanDown", "update":"indata('walls', 'key', gRedX + '-' + (gRedY+1) + '-false')? false : true" }, { "name":"gRedHasPacMan", "update":"superPower && ((gRedX + gRedOffsetX === pacManX) && (gRedY + gRedOffsetY === pacManY))" }, { "name":"gRedBlocked", "on": [ { "events":{"signal":"gRedProposedDirection"}, "force": true, "update":"!gRedProposedDirection ||(gRedProposedDirection === 'up' && !gRedCanUp) || (gRedProposedDirection === 'down' && !gRedCanDown) || (gRedProposedDirection === 'left' && !gRedCanLeft) || (gRedProposedDirection === 'right' && !gRedCanRight) ? true : false" } ] }, { "name":"gRedTry", "on": [ { "events":{"type":"timer", "throttle": 350}, "update":"gRedBlocked && gRedTry <3 ? gRedTry+1 : 0" } ] }, { "name":"gRedDecision", "update":"data('gRedDecisions')[gRedTry]" }, { "name":"gRedProposedDirection", "on": [{"events":{"signal":"gRedDecision"}, "force": true, "update":"gRedDecision ? gRedDecision.d : 'none'"}] }, { "name":"gRedDirection", "update":"gRedProposedDirection && !gRedBlocked ? gRedProposedDirection : gRedDirection" }, { "name":"gRedOffsetX", "update":"gRedDirection === 'left'? - 1 : gRedDirection === 'right'? 1 : 0" }, { "name":"gRedOffsetY", "update":"gRedDirection === 'up'? -1 : gRedDirection === 'down' ? 1 : 0" }, { "name":"gRedX", "init":"gRed.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'red') ? 6 : (!restart && !gRedHasWallX && !gRedHasPacMan ? ((gRedOffsetX <0 && gRedX <= 0) ? grid.width - 1 : ((gRedOffsetX > 0 && gRedX >= grid.width -1) ? 0 : (gRedX + gRedOffsetX))) : gRedX)" }, { "events":{"signal":"restart"}, "update":"gRed.x", "force": true } ] }, { "name":"gRedY", "init":"gRed.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'red') ? 7 : (!restart && !gRedHasWallY && !gRedHasPacMan ? ((gRedOffsetY <0 && gRedY <= 0) ? grid.height-1 : (gRedOffsetY > 0 && gRedY >= grid.height - 1)? 0 : gRedY + gRedOffsetY) : gRedY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gRed.y" } ] }, { "name":"gBlue", "init":"data('ghosts')[1]" }, { "name":"gBlueDelta", "update":"{dx:pacManX-gBlueX, dy: pacManY-gBlueY}" }, { "name":"gBlueLastDir", "update":"gBlueDirection" }, { "name":"gBluePreferences", "update":"setdata('gBlueDecisions',[{d:'up', i: (gBlueLastDir === 'down' ? 4 : (abs(gBlueDelta.dy) > abs(gBlueDelta.dx) ? (gBlueDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gBlueDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gBlueLastDir === 'up' ? 4 : (abs(gBlueDelta.dy) > abs(gBlueDelta.dx) ? (gBlueDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gBlueDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gBlueLastDir === 'right' ? 4 : (abs(gBlueDelta.dy) < abs(gBlueDelta.dx) ? (gBlueDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gBlueDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gBlueLastDir === 'left' ? 4 : abs(gBlueDelta.dy) < abs(gBlueDelta.dx) ? (gBlueDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gBlueDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gBlueHasWallX", "update":"(gBlueOffsetX<0 && !gBlueCanLeft) || (gBlueOffsetX>0 && !gBlueCanRight) ? true : false" }, { "name":"gBlueHasWallY", "update":"(gBlueOffsetY<0 && !gBlueCanUp) || (gBlueOffsetY>0 && !gBlueCanDown) ? true : false" }, { "name":"gBlueHasGhost", "update":"(gBlueX == gRedX && gBlueY === gRedY)" }, { "name":"gBlueHasPacMan", "update":"superPower && ((gBlueX + gBlueOffsetX === pacManX) && (gBlueY + gBlueOffsetY === pacManY)) " }, { "name":"gBlueCanLeft", "update":"indata('walls', 'key', gBlueX + '-' + gBlueY + '-true') ? false : true" }, { "name":"gBlueCanUp", "update":"indata('walls', 'key', gBlueX + '-' + gBlueY + '-false')? false : true" }, { "name":"gBlueCanRight", "update":"indata('walls', 'key', (gBlueX + 1) + '-' + gBlueY + '-true') ? false : true" }, { "name":"gBlueCanDown", "update":"indata('walls', 'key', gBlueX + '-' + (gBlueY+1) + '-false')? false : true" }, { "name":"gBlueBlocked", "on": [ { "events":{"signal":"gBlueProposedDirection"}, "force": true, "update":"!gBlueProposedDirection || (gBlueProposedDirection === 'up' && !gBlueCanUp) || (gBlueProposedDirection === 'down' && !gBlueCanDown) || (gBlueProposedDirection === 'left' && !gBlueCanLeft) || (gBlueProposedDirection === 'right' && !gBlueCanRight) ? true : false" } ] }, { "name":"gBlueTry", "on": [ { "events":{"type":"timer", "throttle": 400}, "update":"gBlueBlocked && gBlueTry <=3 ? gBlueTry+1 : 0" } ] }, { "name":"gBlueDecision", "update":"data('gBlueDecisions')[gBlueTry]" }, { "name":"gBlueProposedDirection", "on": [{"events":{"signal":"gBlueDecision"}, "force": true, "update":"gBlueDecision ? gBlueDecision.d : 'none'"}] }, { "name":"gBlueDirection", "update":"gBlueProposedDirection && !gBlueBlocked ? gBlueProposedDirection : gBlueDirection" }, { "name":"gBlueOffsetX", "update":"gBlueDirection === 'left'? - 1 : gBlueDirection === 'right'? 1 : 0" }, { "name":"gBlueOffsetY", "update":"gBlueDirection === 'up' ? -1 : gBlueDirection === 'down' ? 1 : 0" }, { "name":"gBlueX", "init":"gBlue.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'steelblue') ? 7 : (!restart && !gBlueHasWallX && !gBlueHasGhost && !gBlueHasPacMan ? ((gBlueOffsetX <0 && gBlueX <= 0) ? grid.width - 1 : ((gBlueOffsetX > 0 && gBlueX >= grid.width -1) ? 0 : (gBlueX + gBlueOffsetX))) : gBlueX)" }, { "events":{"signal":"restart"}, "update":"gBlue.x", "force": true } ] }, { "name":"gBlueY", "init":"gBlue.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'steelblue') ? 7 : (!restart && !gBlueHasWallY && !gBlueHasGhost && !gBlueHasPacMan ? ((gBlueOffsetY <0 && gBlueY <= 0) ? grid.height-1 : (gBlueOffsetY > 0 && gBlueY >= grid.height - 1)? 0 : gBlueY + gBlueOffsetY) : gBlueY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gBlue.y" } ] }, { "name":"gGreen", "init":"data('ghosts')[2]" }, { "name":"gGreenDelta", "update":"{dx:pacManX-gGreenX, dy: pacManY-gGreenY}" }, { "name":"gGreenLastDir", "update":"gGreenDirection" }, { "name":"gGreenPreferences", "update":"setdata('gGreenDecisions',[{d:'up', i: (gGreenLastDir === 'down' ? 4 : (abs(gGreenDelta.dy) > abs(gGreenDelta.dx) ? (gGreenDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gGreenDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gGreenLastDir === 'up' ? 4 : (abs(gGreenDelta.dy) > abs(gGreenDelta.dx) ? (gGreenDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gGreenDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gGreenLastDir === 'right' ? 4 : (abs(gGreenDelta.dy) < abs(gGreenDelta.dx) ? (gGreenDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gGreenDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gGreenLastDir === 'left' ? 4 : abs(gGreenDelta.dy) < abs(gGreenDelta.dx) ? (gGreenDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gGreenDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gGreenHasWallX", "update":"(gGreenOffsetX<0 && !gGreenCanLeft) || (gGreenOffsetX>0 && !gGreenCanRight) ? true : false" }, { "name":"gGreenHasWallY", "update":"(gGreenOffsetY<0 && !gGreenCanUp) || (gGreenOffsetY>0 && !gGreenCanDown) ? true : false" }, { "name":"gGreenHasGhost", "update":"(gGreenX === gRedX && gGreenY === gRedY) || (gGreenX === gBlueX && gGreenY+gGreenOffsetY === gBlueY)" }, { "name":"gGreenHasPacMan", "update":"superPower && ((gGreenX + gGreenOffsetX === pacManX) && (gGreenY + gGreenOffsetY === pacManY)) " }, { "name":"gGreenCanLeft", "update":"indata('walls', 'key', gGreenX + '-' + gGreenY + '-true') ? false : true" }, { "name":"gGreenCanUp", "update":"indata('walls', 'key', gGreenX + '-' + gGreenY + '-false')? false : true" }, { "name":"gGreenCanRight", "update":"indata('walls', 'key', (gGreenX + 1) + '-' + gGreenY + '-true') ? false : true" }, { "name":"gGreenCanDown", "update":"indata('walls', 'key', gGreenX + '-' + (gGreenY+1) + '-false')? false : true" }, { "name":"gGreenBlocked", "on": [ { "events":{"signal":"gGreenProposedDirection"}, "force": true, "update":"!gGreenProposedDirection || (gGreenProposedDirection === 'up' && !gGreenCanUp) || (gGreenProposedDirection === 'down' && !gGreenCanDown) || (gGreenProposedDirection === 'left' && !gGreenCanLeft) || (gGreenProposedDirection === 'right' && !gGreenCanRight) ? true : false" } ] }, { "name":"gGreenTry", "on": [ { "events":{"type":"timer", "throttle": 400}, "update":"gGreenBlocked && gGreenTry <=3 ? gGreenTry+1 : 0" } ] }, { "name":"gGreenDecision", "update":"data('gGreenDecisions')[gGreenTry]" }, { "name":"gGreenProposedDirection", "on": [{"events":{"signal":"gGreenDecision"}, "force": true, "update":"gGreenDecision ? gGreenDecision.d : 'none'"}] }, { "name":"gGreenDirection", "update":"gGreenProposedDirection && !gGreenBlocked ? gGreenProposedDirection : gGreenDirection" }, { "name":"gGreenOffsetX", "update":"gGreenDirection === 'left'? - 1 : gGreenDirection === 'right'? 1 : 0" }, { "name":"gGreenOffsetY", "update":"gGreenDirection === 'up' ? -1 : gGreenDirection === 'down' ? 1 : 0" }, { "name":"gGreenX", "init":"gGreen.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'green') ? 8 : (!restart && !gGreenHasWallX && !gGreenHasGhost && !gGreenHasPacMan ? ((gGreenOffsetX <0 && gGreenX <= 0) ? grid.width - 1 : ((gGreenOffsetX > 0 && gGreenX >= grid.width -1) ? 0 : (gGreenX + gGreenOffsetX))) : gGreenX)" }, { "events":{"signal":"restart"}, "update":"gGreen.x", "force": true } ] }, { "name":"gGreenY", "init":"gGreen.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'green') ? 7 : (!restart && !gGreenHasWallY && !gGreenHasGhost && !gGreenHasPacMan ? ((gGreenOffsetY <0 && gGreenY <= 0) ? grid.height-1 : (gGreenOffsetY > 0 && gGreenY >= grid.height - 1)? 0 : gGreenY + gGreenOffsetY) : gGreenY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gGreen.y" } ] }, { "name":"gOrange", "init":"data('ghosts')[3]" }, { "name":"gOrangeDelta", "update":"{dx:pacManX-gOrangeX, dy: pacManY-gOrangeY}" }, { "name":"gOrangeLastDir", "update":"gOrangeDirection" }, { "name":"gOrangePreferences", "update":"setdata('gOrangeDecisions',[{d:'up', i: (gOrangeLastDir === 'down' ? 4 : (abs(gOrangeDelta.dy) > abs(gOrangeDelta.dx) ? (gOrangeDelta.dy<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gOrangeDelta.dy<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'down', i:(gOrangeLastDir === 'up' ? 4 : (abs(gOrangeDelta.dy) > abs(gOrangeDelta.dx) ? (gOrangeDelta.dy<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gOrangeDelta.dy<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2))))}, {d:'left', i: (gOrangeLastDir === 'right' ? 4 : (abs(gOrangeDelta.dy) < abs(gOrangeDelta.dx) ? (gOrangeDelta.dx<0 ? (superPower ? 4 : 1) : (superPower ? 1 : 4)) : (gOrangeDelta.dx<0 ? (superPower ? 3 : 2) : (superPower ? 2 : 3))))}, {d:'right', i:(gOrangeLastDir === 'left' ? 4 : abs(gOrangeDelta.dy) < abs(gOrangeDelta.dx) ? (gOrangeDelta.dx<0 ? (superPower ? 1 : 4) : (superPower ? 4 : 1)) : (gOrangeDelta.dx<0 ? (superPower ? 2 : 3) : (superPower ? 3 : 2)))}])" }, { "name":"gOrangeHasWallX", "update":"(gOrangeOffsetX<0 && !gOrangeCanLeft) || (gOrangeOffsetX>0 && !gOrangeCanRight) ? true : false" }, { "name":"gOrangeHasWallY", "update":"(gOrangeOffsetY<0 && !gOrangeCanUp) || (gOrangeOffsetY>0 && !gOrangeCanDown) ? true : false" }, { "name":"gOrangeHasGhost", "update":"(gOrangeX === gRedX && gOrangeY === gRedY) || (gOrangeX === gBlueX && gOrangeY === gBlueY) || (gOrangeX === gGreenX && gOrangeY === gGreenY)" }, { "name":"gOrangeCanLeft", "update":"indata('walls', 'key', gOrangeX + '-' + gOrangeY + '-true') ? false : true" }, { "name":"gOrangeCanUp", "update":"indata('walls', 'key', gOrangeX + '-' + gOrangeY + '-false')? false : true" }, { "name":"gOrangeCanRight", "update":"indata('walls', 'key', (gOrangeX + 1) + '-' + gOrangeY + '-true') ? false : true" }, { "name":"gOrangeCanDown", "update":"indata('walls', 'key', gOrangeX + '-' + (gOrangeY+1) + '-false')? false : true" }, { "name":"gOrangeBlocked", "on": [ { "events":{"signal":"gOrangeProposedDirection"}, "force": true, "update":"!gOrangeProposedDirection || (gOrangeProposedDirection === 'up' && !gOrangeCanUp) || (gOrangeProposedDirection === 'down' && !gOrangeCanDown) || (gOrangeProposedDirection === 'left' && !gOrangeCanLeft) || (gOrangeProposedDirection === 'right' && !gOrangeCanRight) ? true : false" } ] }, { "name":"gOrangeTry", "on": [ { "events":{"type":"timer", "throttle": 400}, "update":"gOrangeBlocked && gOrangeTry <=3 ? gOrangeTry+1 : 0" } ] }, { "name":"gOrangeHasPacMan", "update":"superPower && ((gOrangeX + gOrangeOffsetX === pacManX) && (gOrangeY + gOrangeOffsetY === pacManY)) " }, { "name":"gOrangeDecision", "update":"data('gOrangeDecisions')[gOrangeTry]" }, { "name":"gOrangeProposedDirection", "on": [{"events":{"signal":"gOrangeDecision"}, "force": true, "update":"gOrangeDecision ? gOrangeDecision.d : 'none'"}] }, { "name":"gOrangeDirection", "update":"gOrangeProposedDirection && !gOrangeBlocked ? gOrangeProposedDirection : gOrangeDirection" }, { "name":"gOrangeOffsetX", "update":"gOrangeDirection === 'left'? - 1 : gOrangeDirection === 'right'? 1 : 0" }, { "name":"gOrangeOffsetY", "update":"gOrangeDirection === 'up' ? -1 : gOrangeDirection === 'down' ? 1 : 0" }, { "name":"gOrangeX", "init":"gOrange.x", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'orange') ? 7 : (!restart && !gOrangeHasWallX && !gOrangeHasGhost && !gOrangeHasPacMan ? ((gOrangeOffsetX <0 && gOrangeX <= 0) ? grid.width - 1 : ((gOrangeOffsetX > 0 && gOrangeX >= grid.width -1) ? 0 : (gOrangeX + gOrangeOffsetX))) : gOrangeX)" }, { "events":{"signal":"restart"}, "update":"gOrange.x", "force": true } ] }, { "name":"gOrangeY", "init":"gOrange.y", "on":[ { "events":{"type":"timer", "throttle": 500}, "update":"indata('eatenGhosts', 'color', 'orange') ? 7 : (!restart && !gOrangeHasWallY && !gOrangeHasGhost && !gOrangeHasPacMan ? ((gOrangeOffsetY <0 && gOrangeY <= 0) ? grid.height-1 : (gOrangeOffsetY > 0 && gOrangeY >= grid.height - 1)? 0 : gOrangeY + gOrangeOffsetY) : gOrangeY)" }, { "events":{"signal":"restart"}, "force":true, "update":"gOrange.y" } ] } ], "scales":[ { "name":"scaleX", "type":"band", "domain":{"data":"columns", "field":"data"}, "range":[{"signal": "rangeWidthDelta"},{"signal":"width-rangeWidthDelta"}] }, { "name":"scaleY", "type":"band", "domain":{"data":"rows", "field":"data"}, "range":[{"signal": "rangeHeightDelta"},{"signal":"height-rangeHeightDelta"}] } ], "marks":[ { "type":"rect", "from":{"data":"walls"}, "encode":{ "enter":{ "x":{"signal":"datum.x < grid.width ? datum.x : grid.width-1", "scale":"scaleX", "offset":{"signal":"datum.vertical? (datum.x < grid.width ? datum.x === 0 ? 0 : -1 : blockSize - blockSize/10):0"}}, "y":{"signal":"datum.y < grid.height ? datum.y : grid.height-1", "scale":"scaleY", "offset":{"signal":"datum.vertical? 0: datum.y < grid.height? datum.y === 0 ? 0 : -1 : blockSize -blockSize/10"}}, "fill":{"value":"blue"}, "width":{"signal":"datum.vertical?blockSize/10:blockSize"}, "height":{"signal":"datum.vertical?blockSize:blockSize/10"} } } }, { "type":"symbol", "from":{"data":"gums"}, "encode":{ "enter":{ "x":{"field":"x", "scale":"scaleX", "offset":{"signal":"blockSize/2"}}, "y":{"field":"y", "scale":"scaleY", "offset":{"signal":"blockSize/2"}}, "fill":{"value":"grey"}, "size":{"signal":"pow(10*sizeFactor, 2)"} }, "update":{ "opacity":[{"test":"indata('eatenGums', 'key', datum.x+'-'+datum.y)", "value": 0}, {"value":1}] } } }, { "type":"symbol", "from":{"data":"powerGums"}, "encode":{ "enter":{ "x":{"field":"x", "scale":"scaleX", "offset":{"signal":"blockSize/2"}}, "y":{"field":"y", "scale":"scaleY", "offset":{"signal":"blockSize/2"}}, "size":{"signal":"pow(18*sizeFactor, 2)"}, "fill":{"value":"white"} }, "update":{ "opacity":[{"test":"indata('eatenGums', 'key', datum.x+'-'+datum.y)", "value": 0}, {"value":1}] } } }, { "type":"group", "name":"pacMan", "encode":{ "update":{ "x":{"signal":"pacManX", "scale":"scaleX"}, "y":{"signal":"pacManY", "scale":"scaleY"} } }, "marks":[ { "type":"arc", "encode":{ "enter":{ "outerRadius":{"signal":"(blockSize/2)*0.8"}, "stroke":{"value":"black"}, "x":{"signal":"blockSize/2"}, "y":{"signal":"blockSize/2"} }, "update":{ "fill":{"signal":"superPower ? 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"scale":"scaleX", "offset":{"signal":"blockSize/2"}}, "y":{"value":11, "scale":"scaleY", "offset":{"signal":"blockSize/2"}}, "fill":{"value":"lightblue"}, "align":{"value":"left"}, "baseline":{"value":"middle"}, "fontSize":{"signal":"14*sizeFactor"} }, "update":{ "opacity":{"signal":"highScore?1:0"}, "text":{"value":"high score"} } } }, { "type":"text", "encode":{ "enter":{ "x":{"value":8, "scale":"scaleX", "offset":{"signal":"blockSize/2"}}, "y":{"value":11, "scale":"scaleY","offset":{"signal":"blockSize/2"}}, "fill":{"value":"lightblue"}, "align":{"value":"center"}, "baseline":{"value":"middle"}, "fontSize":{"signal":"20*sizeFactor"} }, "update":{ "opacity":{"signal":"highScore?1:0"}, "text":{"signal":"highScore"} } } }])41:[] 2f:{"title":"How to create a PacMan game with Vega","cells":[{"id":0,"value":"md`# How to create a PacMan game with Vega\nThis tutorial details the creation of a PacMan game. A great opportunity to work on responsivity, interactions, and triggers.\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":212,"value":"embed = require(\"vega-embed@6\")","pinned":false,"hidden":false,"mode":"ojs"},{"id":74,"value":"md `*Ensure the visualization has the focus clicking on it then use Ctrl and the Arrows to move PacMan*`","pinned":false,"hidden":false,"mode":"ojs"},{"id":10,"value":"$31","pinned":false,"hidden":false,"mode":"ojs"},{"id":15,"value":"md`\n1. [Responsive Game Area](#game-area)\n2. [PacMan](#pacman)\n3. [Walls](#walls)\n4. [Gums](#gums)\n5. [Ghosts](#ghosts)\n6. [Score](#score)\n7. [Possible Improvments](#improvments)\n\n## Responsive Game Area\n\nThe area game will be a grid made of blocks. Each block will represent a possible position for Pacman, a ghost, a gum or a wall.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":18,"value":"$32","pinned":false,"hidden":false,"mode":"ojs"},{"id":21,"value":"md`It requires the following signals:\n\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":25,"value":"([\n {\n \"name\":\"grid\",\n \"value\":{\"width\":15, \"height\":15}\n },\n\t {\n \"name\":\"blockSize\",\n \"init\":\"min(width,height)/max(grid.width,grid.height)\"\n },\n {\n \"name\":\"rangeWidthDelta\",\n \"update\":\"(width - blockSize*grid.width)/2\"\n },\n {\n \"name\":\"rangeHeightDelta\",\n \"update\":\"(height - blockSize*grid.height)/2\"\n },\n {\n \"name\":\"sizeFactor\",\n \"init\":\"blockSize*15/600\"\n }\n ]\n)","pinned":false,"hidden":false,"mode":"ojs"},{"id":40,"value":"$33","pinned":false,"hidden":false,"mode":"ojs"},{"id":52,"value":"([\n{\n \"name\": \"columns\",\n \"transform\": [\n {\n \"type\": \"sequence\",\n \"start\": 0,\n \"stop\": { \"signal\": \"grid.width\" },\n \"step\": 1\n }\n ]\n },\n {\n \"name\": \"rows\",\n \"transform\": [\n {\n \"type\": \"sequence\",\n \"start\": 0,\n \"stop\": { \"signal\": \"grid.height\" },\n \"step\": 1\n }\n ]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":57,"value":"md`These sequences from 0 to \"grid\" width and height will be used as the domain of the location scales of the game.\n\nFinally we create the location scales:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":60,"value":"([{\n \"name\":\"scaleX\",\n \"type\":\"band\",\n \"domain\":{\"data\":\"columns\", \"field\":\"data\"},\n \"range\":[{\"signal\": \"rangeWidthDelta\"},{\"signal\":\"width-rangeWidthDelta\"}]\n },\n {\n \"name\":\"scaleY\",\n \"type\":\"band\",\n \"domain\":{\"data\":\"rows\", \"field\":\"data\"},\n \"range\":[{\"signal\": \"rangeHeightDelta\"},{\"signal\":\"height-rangeHeightDelta\"}]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":63,"value":"md`With these scale we can now locate any object in the grid using a column and row index.\n\nThe gaming area will not be represented but to check that everything is working fine, let’s create some marks:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":66,"value":"$34","pinned":false,"hidden":false,"mode":"ojs"},{"id":69,"value":"md`Once this is done, we can change the \"width\", \"height\" of the visualization and of the grid to check that whatever the values you are using, you always have a grid centered in the visualization, the text never overflowing. You will use the \"blockSize\" and the \"sizeFactor\" signal in the other marks to ensure that the entire visualization will always be responsive.\n\n This is of course optional: you might prefer to use a fixed width and height for the visuzalization, but users are used to responsiveness and it's not a lot of work to achieve it.\n\n ## PacMan\n\n Now that we have the game area, let’s create the PacMan.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":72,"value":"$35","pinned":false,"hidden":false,"mode":"ojs"},{"id":78,"value":"md`Here are the PacMan signals:\n`","pinned":true,"hidden":false,"mode":"ojs"},{"id":80,"value":"$36","pinned":false,"hidden":false,"mode":"ojs"},{"id":84,"value":"md`- \"key\" will capture the keyboard inputs\n- \"pacManXOffset\" and \"pacManYOffset\" will contain the horizontal and vertical offset to apply to PacMan coordinates according to the arrows of the keyboard\n- \"pacManIsOpen\" is the PacMan mouth animation based on a timer\n- \"pacManX\" and \"pacManY\" represent the location of the PacMan in the grid. There is a test ensuring that PacMan always remains inside the grid.\n\nThis is the mark to create PacMan:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":88,"value":"$37","pinned":false,"hidden":false,"mode":"ojs"},{"id":91,"value":"md`Pac man is a group containing one arc for the body and one symbol for the eye. Location is based on \"pacManX\" and \"pacManY\" using the location scales. The size of the arc and symbol are based on \"blockSize\" and \"sizeFactor\". the \"startAngle\" and \"endAngle\" are related to \"pacManIsOpen\" for the angle and \"pacManXoffset\" for the direction.\n\nPacMan is now alive and ready to discover the world!\n\n## Walls\n\nThe walls are defining the maze and should block the PacMan.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":94,"value":"$38","pinned":false,"hidden":false,"mode":"ojs"},{"id":98,"value":"md`Walls are defined in a data source:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":101,"value":"([{ \n \"name\":\"walls\",\n \"values\":[\n {\"x\":13, \"y\":15, \"vertical\":false},\n {\"x\":14, \"y\":15, \"vertical\":false}, \n\n {\"x\":0, \"y\":0, \"vertical\":true},\n {\"x\":0, \"y\":1, \"vertical\":true}\n ],\n \"transform\":[\n {\n \"type\":\"formula\",\n \"expr\":\"datum.x+'-'+datum.y+'-'+datum.vertical\",\n \"as\":\"key\"\n }\n ]\n}])","pinned":false,"hidden":false,"mode":"ojs"},{"id":105,"value":"md`\n - \"x\" and \"y\" properties are defining the location of the wall\n - \"vertical\" defines the orientation\n\n They are represented using a rect mark:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":109,"value":"([{\n \"type\":\"rect\",\n \"from\":{\"data\":\"walls\"},\n \"encode\":{\n \"enter\":{\n \"x\":{\"signal\":\"datum.x < grid.width ? datum.x : grid.width-1\", \"scale\":\"scaleX\", \"offset\":{\"signal\":\"datum.vertical? (datum.x < grid.width ? datum.x === 0 ? 0 : -1 : blockSize - blockSize/10):0\"}},\n \"y\":{\"signal\":\"datum.y < grid.height ? datum.y : grid.height-1\", \"scale\":\"scaleY\", \"offset\":{\"signal\":\"datum.vertical? 0: datum.y < grid.height? datum.y === 0 ? 0 : -1 : blockSize -blockSize/10\"}},\n \"fill\":{\"value\":\"blue\"},\n \"width\":{\"signal\":\"datum.vertical?blockSize/10:blockSize\"},\n \"height\":{\"signal\":\"datum.vertical?blockSize:blockSize/10\"} \n\n }\n }\n}])","pinned":false,"hidden":false,"mode":"ojs"},{"id":113,"value":"md`It will display horizontal or vertical rectangle adjusting the offsets to fit into the grid and to join 2 perpendicular walls.\n\nAs PacMan should not be able to pass trough a wall, we need to add or update some signals:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":116,"value":"$39","pinned":false,"hidden":false,"mode":"ojs"},{"id":121,"value":"md`- \"pacManHasWallX\" and \"pacManHasWally\" are testing if the next coordinates of the pacMan will meet a wall using indata function\n- \"pacManCanMoveX\" and \"pacManCanMoveY\" will check if a move is possible. For the moment it only check for wall but later we will also need to check for ghosts\n- \"pacManX\" and \"pacManY\" have been update to apply the offset only if the move is allowed\n\nThis system allows us to change or maze without affecting the wall detection. We can also imagine adding a level property in the \"walls\" data source and filter by level, allowing the game to support multiple levels.\n\n## Gums\n\nThe gums are elements that can be eaten. Some of them are giving the PacMan a big power.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":126,"value":"$3a","pinned":false,"hidden":false,"mode":"ojs"},{"id":129,"value":"md`The gums require 3 data sources:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":131,"value":"([{\n \"name\":\"gums\",\n \"values\":[\n {\"x\":0, \"y\":1},\n {\"x\":0, \"y\":2},\n {\"x\":0, \"y\":3},\n {\"x\":0, \"y\":4},\n \n ],\n \"transform\":[\n {\"type\":\"formula\", \"expr\":\"datum.x+'-'+datum.y\", \"as\":\"key\"}\n ]\n },\n {\n \"name\":\"powerGums\",\n \"values\":[{\"x\":0, \"y\":0},{\"x\":14, \"y\":0}, {\"x\":0, \"y\":14}, {\"x\":14, \"y\":14}],\n \"transform\":[\n {\"type\":\"formula\", \"expr\":\"datum.x+'-'+datum.y\", \"as\":\"key\"}\n ]\n },\n {\n \"name\":\"eatenGums\",\n \"on\":[\n {\n \"trigger\":\"testEaten\",\n \"insert\":\"testEaten\"\n },\n {\n \"trigger\":\"testPowerEaten\",\n \"insert\":\"testPowerEaten\"\n },\n {\n \"trigger\":\"restart\",\n \"remove\":\"restart\"\n }\n ]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":135,"value":"md`- \"gums\" will contain the location of normal gums\n - \"powerGums\" will contain the location of power gums\n - \"eatenGums\" will contain all the gums eaten by the PacMan\n\n To update the eaten gums and check if PacMan suceed to finish a level we will use the following signals:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":138,"value":"([{\n \"name\":\"win\",\n \"update\":\"length(data('gums')) + length(data('powerGums')) === length(data('eatenGums'))\"\n },\n {\n \"name\":\"restart\",\n \"update\":\"win === true\"\n },\n {\n \"name\":\"testEaten\",\n \"update\":\"!restart && (indata('gums', 'key', pacManX+'-'+pacManY) && !indata('eatenGums', 'key', pacManX+'-'+pacManY)) ? {x:pacManX, y:pacManY, key:pacManX+'-'+pacManY} : null\"\n },\n {\n \"name\":\"testPowerEaten\",\n \"update\":\"!restart && (indata('powerGums', 'key', pacManX+'-'+pacManY) && !indata('eatenGums', 'key', pacManX+'-'+pacManY)) ? {x:pacManX, y:pacManY, key:pacManX+'-'+pacManY} : null\"\n },\n {\n \"name\":\"superPower\",\n \"init\":\"0\",\n \"on\": [{\"events\":{\"type\":\"timer\", \"throttle\": 1000}, \"force\": true, \"update\":\"superPower > 0 ? superPower - 1 : 0\"},\n {\"events\":{\"signal\":\"testPowerEaten\"}, \"update\":\"testPowerEaten? 15 : superPower\"},\n {\"events\":{\"signal\":\"restart\"}, \"update\":\"0\"}]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":141,"value":"md`- \"win\" will evaluate if all the gums have been eaten comparing the size of all gums data sources\n- \"restart\" will be triggered when win is true. It will clear the \"eatenGums\" table and reset PacMan location\n- \"testEaten\" and \"testPowerEaten\" evaluate if the PacMan location meet a gum. They will trigger inserts into the \"eatenGums\" table\n- \"superPower\" is triggered when a powerGum has been eaten. It will set the power mode to 15 seconds\n\nTo render the gums we will use the symbols:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":144,"value":"([{\n \"type\":\"symbol\",\n \"from\":{\"data\":\"gums\"},\n \"encode\":{\n \"enter\":{\n \"x\":{\"field\":\"x\", \"scale\":\"scaleX\", \"offset\":{\"signal\":\"blockSize/2\"}},\n \"y\":{\"field\":\"y\", \"scale\":\"scaleY\", \"offset\":{\"signal\":\"blockSize/2\"}},\n \"fill\":{\"value\":\"grey\"},\n \"size\":{\"signal\":\"pow(10*sizeFactor, 2)\"}\n },\n \"update\":{\n \"opacity\":[{\"test\":\"indata('eatenGums', 'key', datum.x+'-'+datum.y)\", \"value\": 0}, {\"value\":1}]\n }\n }\n },\n {\n \"type\":\"symbol\",\n \"from\":{\"data\":\"powerGums\"},\n \"encode\":{\n \"enter\":{\n \"x\":{\"field\":\"x\", \"scale\":\"scaleX\", \"offset\":{\"signal\":\"blockSize/2\"}},\n \"y\":{\"field\":\"y\", \"scale\":\"scaleY\", \"offset\":{\"signal\":\"blockSize/2\"}},\n \"size\":{\"signal\":\"pow(18*sizeFactor, 2)\"},\n \"fill\":{\"value\":\"white\"}\n },\n \"update\":{\n \"opacity\":[{\"test\":\"indata('eatenGums', 'key', datum.x+'-'+datum.y)\", \"value\": 0}, {\"value\":1}]\n }\n }\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":147,"value":"md`- the \"opacity\" of the gums will depend of an indata test\n- the location is related to the \"blockSize\" and the size to the \"sizeFactor\" to ensure responsivity\n\n## Ghosts\n\nThe ghost is certainly the most complicated part: because they are not moved by a human we need to create an algorithm that will make them trying to catch PacMan or escape from him trying to avoid:\n-\tfreeze against a wall maze\n-\tOverlapping another ghost\n-\tNot pass through the walls\n-\tBe blocked in a loop\nAnd the challenge is that for the algorithm you can’t rely on custom methods, iteration, or local variable declaration. You will have to rely on signal, data sources and the ternary operator “?:” which is great but not so easy to read or debug.\nTo achieve that we must first simplify the ghosts to one unique ghost and once its algorithm has been approved create the other with the same logic.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":150,"value":"$3b","pinned":false,"hidden":false,"mode":"ojs"},{"id":153,"value":"md`Here is the approach for the ghost “IA”.\n- First, I tried to use the delta of the ghost position and PacMan position to set the ghost direction. But when the ghost met a wall in is way to PacMan it stays without moving.\n- I then added a condition checking if the ghost was blocked and if it was, to move in the direction transversal. The ghost was not blocked but enter in loops going backward and forward.\n- I finally opted for a table of preferences: according to the delta with PacMan it will ordonate the directions it want to follow, using the opposite of the last chosen direction as the last wish.\nWhen a ghost is blocked a timer change the directions index so that the ghost will always select the path that doesn’t block going backward being always the last option. To avoid circular references, I was forced to use a timer and I had to calibrate experimentally the delay to change the direction index.\n\nEach ghost will require the same set of signal and data.\nThe data sources are:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":157,"value":"([{\n \"name\":\"ghosts\",\n \"values\":[\n {\n \"x\":0,\n \"y\":0,\n \"color\":\"red\"\n }\n ]\n },\n {\n \"name\":\"eatenGhosts\",\n \"on\": [{\n \"trigger\":\"testEatenGhost\",\n \"insert\":\"testEatenGhost\"\n },\n {\n \"trigger\":\"!superPower\",\n \"remove\":\"!superPower\"\n }]\n },\n {\n \"name\":\"gRedDecisions\",\n \"values\":[],\n \"transform\":[\n {\"type\":\"collect\",\n \"sort\":{\"field\":\"i\"}\n }\n ]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":160,"value":"md`- the \"ghosts\" table will contain the initial location and the color of each ghost\n- the \"eatenGhosts\" table will the ghosts eaten by PacMan when the super mode is activated\n- the \"g(ColorOfTheGhost)Decisions\" table will store and order the desired directions for each ghost\n\nThe signals are:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":162,"value":"$3c","pinned":false,"hidden":false,"mode":"ojs"},{"id":165,"value":"$3d","pinned":false,"hidden":false,"mode":"ojs"},{"id":167,"value":"([{\n \"name\":\"testEatenGhost\",\n \"update\":\"superPower ? ((gRedX === pacManX && gRedY === pacManY) ? gRed : null) : null\"\n },\n {\n \"name\":\"pacManHasGhost\",\n \"update\":\"!superPower && ((pacManX + pacManXOffset === gRedX) && (pacManY + pacManYOffset === gRedY))\"\n },\n {\n \"name\":\"loose\",\n \"on\":[{\"events\":{\"type\":\"timer\", \"throttle\": 400 }, \"update\":\"!superPower && (pacManX === gRedX && pacManY === gRedY)\"}]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":170,"value":"md`- \"testEatenGhost\" will update the eatenGhosts table when PacMan is in powerMode\n- \"pacManHasGhost\" will test if the next move will meet a Ghost\n- \"loose\" will check if a ghost has eaten PacMan and trigger a game restart\n\nThe ghosts are represented as a symbol mark with a custom shape:`","pinned":false,"hidden":false,"mode":"ojs"},{"id":172,"value":"$3e","pinned":false,"hidden":false,"mode":"ojs"},{"id":175,"value":"md`The size of the ghost will be related to the \"blockSize\" to ensure responsivity.\n\nTo create all the ghost, once the IA has been validated on one ghost, we just have to copy past the signals ghost related and update the pacMan ghost detection.\n\nBecause the ghosts were ending to overlap. I had to add a ghost detection signal on some ghosts:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":177,"value":"([{\n \"name\":\"gBlueHasGhost\",\n \"update\":\"(gBlueX == gRedX && gBlueY === gRedY)\"\n },\n {\n \"name\":\"gGreenHasGhost\",\n \"update\":\"(gGreenX === gRedX && gGreenY === gRedY) || (gGreenX === gBlueX && gGreenY+gGreenOffsetY === gBlueY)\"\n },\n {\n \"name\":\"gOrangeHasGhost\",\n \"update\":\"(gOrangeX === gRedX && gOrangeY === gRedY) || (gOrangeX === gBlueX && gOrangeY === gBlueY) || (gOrangeX === gGreenX && gOrangeY === gGreenY)\"\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":183,"value":"md`Some ghosts won't move when overlapped.`","pinned":false,"hidden":false,"mode":"ojs"},{"id":185,"value":"$3f","pinned":false,"hidden":false,"mode":"ojs"},{"id":191,"value":"md`## Score\n\n This is a final touch: score adds user interest, and more if she have a high-score to beat.\n\n Let's add some signals:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":193,"value":"([{\n \"name\":\"score\",\n \"init\":\"0\",\n \"on\": [\n {\"events\":{\"signal\":\"testEaten\"},\"update\":\"testEaten ? score + 10 : score\"},\n {\"events\":{\"signal\":\"testPowerEaten\"},\"update\":\"testPowerEaten ? score + 50 : score\"},\n {\"events\":{\"signal\":\"testEatenGhost\"},\"update\":\"testEatenGhost ? score + 100 : score\"},\n {\"events\":{\"signal\":\"loose\"}, \"force\":true ,\"update\":\"restart ? 0 : score\"}\n ]\n },\n {\n \"name\":\"highScore\",\n \"init\":\"0\",\n \"on\":[\n {\"events\":{\"signal\":\"score\"}, \"update\":\"max(score,highScore)\"}\n ]\n }])","pinned":false,"hidden":false,"mode":"ojs"},{"id":196,"value":"md`\n- \"score\" will be increased when PacMan eats a gum a power gum or a ghost and will be set to 0 when is eaten by a ghost\n- \"highScore\" will stores the best score\n\nThe scores are represented by text marks:\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":198,"value":"$40","pinned":false,"hidden":false,"mode":"ojs"},{"id":202,"value":"md`The \"fontSize\" property is related to \"sizeFactor\" to ensure responsivity.\n\n## Possible Improvments\n\nHere are some ideas, for people who wants to improve the game.\n\n-\tThe IA could certainly be improved, and also individualized as in the original version\n-\tShould handle levels with different maze\n-\tCreate an animation when PacMan die\n-\tCreate a win animation\n-\tSupports PacMan lives`","pinned":false,"hidden":false,"mode":"ojs"}],"files":"$W41","stdlib":"1","titling":"auto"}