Checkpoint with particles

index.html

@@ -9,9 +9,11 @@
     <div style="text-align:center">
       <div class="canvas-holder">
         <canvas id="game-canvas" width="1000" height="1000"></canvas>
+        <!--
         <div class="game-hud" id="hud">
           <p>Hello, world!</p>
         </div>
+        -->
         <div class="menu" style="display: none" id="menu">
         </div>
       </div>

level-all.bbiy

@@ -29,8 +29,8 @@ hhhhhhhhhhhhhhhhhhhh
                     
     wwwwwwwwwwww    
          r          
-      b  r   f      
-         r          
+         r   f      
+      b  r          
     wwwwwwwwwwww    
                     
      BIY    FIX     

src/bootstrap.js

@@ -1,13 +1,19 @@
 game.bootstrap = (() => {
   const scripts = [
-    { src: ['src/utils/objectEquivalence.js', 'src/utils/unitizeVector.js', 'src/utils/clamp.js', 'src/utils/loadLevel.js'], id: 'utils'},
+    { 
+      src: [
+        'src/utils/objectEquivalence.js', 'src/utils/unitizeVector.js', 'src/utils/clamp.js', 'src/utils/loadLevel.js',
+        'src/utils/randInRange.js'
+      ],
+      id: 'utils'
+    },
     { src: ['src/render/graphics.js', 'src/render/sprites.js'], id: 'graphics' },
     { src: ['src/components/component.js'], id: 'component' },
     { 
       src: [
         'src/components/position.js', 'src/components/momentum.js', 'src/components/gridPosition.js',
         'src/components/appearence.js', 'src/components/controllable.js', 'src/components/pushable.js',
-        'src/components/loadPriority.js', 'src/components/stop.js'
+        'src/components/loadPriority.js', 'src/components/stop.js', 'src/components/alive.js',
       ],
       id: 'components'
     },
@@ -18,7 +24,8 @@ game.bootstrap = (() => {
         'src/entities/liquid.js', 'src/entities/rock.js', 'src/entities/wall.js', 'src/entities/wordBigBlue.js', 
         'src/entities/wordFlag.js', 'src/entities/wordIs.js', 'src/entities/wordKill.js', 'src/entities/wordLava.js',
         'src/entities/wordPush.js', 'src/entities/wordRock.js', 'src/entities/wordSink.js', 'src/entities/wordStop.js', 
-        'src/entities/wordWall.js', 'src/entities/wordWater.js', 'src/entities/wordWin.js', 'src/entities/wordYou.js'
+        'src/entities/wordWall.js', 'src/entities/wordWater.js', 'src/entities/wordWin.js', 'src/entities/wordYou.js',
+        'src/entities/borderParticles.js'
       ],
       id: 'entities'
     },

src/components/alive.js

@@ -0,0 +1 @@
+game.components.Alive = () => game.Component('alive');

src/entities/bigblue.js

@@ -2,6 +2,7 @@ game.createBigBlue = () => {
   const bigBlue = game.Entity();
   bigBlue.addComponent(game.components.LoadPriority({priority: 1}));
   bigBlue.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
+  bigBlue.addComponent(game.components.Alive());
   bigBlue.sprite = game.sprites.bigBlue;
   
   // TODO: Remove this

src/entities/borderParticles.js

@@ -0,0 +1,55 @@
+game.createBorderParticles = ({colors, maxAmount, minAmount, minLife, maxLife, minRadius, maxRadius, maxSpeed}) => {
+  const particles = game.Entity();
+  let particleSpecs = Array(randomInRange(minAmount, maxAmount)).fill(0).map(() => {
+    const particle = {
+      x: Math.random(),
+      y: Math.random(),
+      dx: Math.random() * maxSpeed - maxSpeed / 2,
+      dy: Math.random() * maxSpeed - maxSpeed / 2,
+      radius: randomInRange(minRadius, maxRadius),
+      color: colors[randomInRange(0, colors.length-1)],
+      lifetime: randomInRange(minLife, maxLife),
+      elapsed: 0,
+    };
+    switch (Math.floor(Math.random() * 4)) {
+      case 0:
+        particle.y = 0;
+        particle.dy = -Math.abs(particle.dy);
+        break;
+      case 1:
+        particle.x = 1;
+        particle.dx = Math.abs(particle.dx);
+        break;
+      case 2:
+        particle.y = 1;
+        particle.dy = Math.abs(particle.dy);
+        break;
+      case 3:
+        particle.x = 0;
+        particle.dx = -Math.abs(particle.dx);
+        break;
+    }
+    return particle;
+  });
+  particles.addComponent(game.components.LoadPriority({priority: 1}));
+  particles.addComponent(game.components.Alive());
+  particles.sprite = game.graphics.Sprite({
+    drawFunction: (elapsedTime, {x, y, width, height}, context) => {
+      particleSpecs.map((spec) => spec.elapsed += elapsedTime);
+      particleSpecs = particleSpecs.filter((spec) => spec.lifetime > spec.elapsed);
+      if (particleSpecs.length === 0) {
+        particles.removeComponent("alive");
+      }
+      particleSpecs.map((spec) => {
+        const position = {x: (spec.x * width) + x + spec.dx * spec.elapsed, y: (spec.y * height) + y + spec.dy * spec.elapsed};
+        const fill = context.fillStyle;
+        context.fillStyle = spec.color;
+        context.beginPath();
+        context.arc(position.x, position.y, spec.radius, 0, 2 * Math.PI);
+        context.fill();
+        context.fillStyle = fill;
+      });
+    }
+  })
+  return particles;
+}

src/entities/entity.js

@@ -13,7 +13,6 @@ game.Entity = (id=game.nextId++) => {
     }
   };
   
-
   return {
     id,
     components,

src/entities/flag.js

@@ -2,6 +2,7 @@ game.createFlag = () => {
   const flag = game.Entity();
   flag.addComponent(game.components.LoadPriority({priority: 2}));
   flag.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
+  flag.addComponent(game.components.Alive());
   flag.sprite = game.sprites.flag;
   return flag;
 }

src/entities/floor.js

@@ -2,6 +2,7 @@ game.createFloor = () => {
   const floor = game.Entity();
   floor.addComponent(game.components.LoadPriority({priority: 5}));
   floor.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
+  floor.addComponent(game.components.Alive());
   floor.sprite = game.sprites.floor;
   return floor;
 }

src/entities/grass.js

@@ -2,6 +2,7 @@ game.createGrass = () => {
   const grass = game.Entity();
   grass.addComponent(game.components.LoadPriority({priority: 6}));
   grass.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
+  grass.addComponent(game.components.Alive());
   grass.sprite = game.sprites.grass;
   return grass;
 }

src/entities/hedge.js

@@ -3,6 +3,7 @@ game.createHedge = () => {
   hedge.addComponent(game.components.LoadPriority({priority: 6}));
   hedge.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   hedge.addComponent(game.components.Stop({stop: true}));
+  hedge.addComponent(game.components.Alive());
   hedge.sprite = game.sprites.hedge;
   return hedge;
 }

src/entities/liquid.js

@@ -4,6 +4,7 @@ game.createLiquid = () => {
   liquid.addComponent(game.components.LoadPriority({priority: 5}));
   liquid.addComponent(game.components.Position({x: 0, y: 0}));
   liquid.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
+  liquid.addComponent(game.components.Alive());
   liquid.sprite = game.graphics.Sprite({
     image: game.assets.liquid,
     spriteHeight: 24,

src/entities/rock.js

@@ -2,6 +2,7 @@ game.createRock = () => {
   const rock = game.Entity();
   rock.addComponent(game.components.LoadPriority({priority: 2}));
   rock.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
+  rock.addComponent(game.components.Alive());
   rock.sprite = game.sprites.rock;
 
   //TODO: Remove this

src/entities/wall.js

@@ -3,6 +3,7 @@ game.createWall = () => {
   wall.addComponent(game.components.LoadPriority({priority: 3}));
   wall.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wall.addComponent(game.components.Stop({stop: true}));
+  wall.addComponent(game.components.Alive());
   wall.sprite = game.sprites.wall;
   return wall;
 }

src/entities/wordBigBlue.js

@@ -3,6 +3,7 @@ game.createWordBigBlue = () => {
   wordBigBlue.addComponent(game.components.LoadPriority({priority: 3}));
   wordBigBlue.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordBigBlue.addComponent(game.components.Pushable({pushable: true}));
+  wordBigBlue.addComponent(game.components.Alive());
   wordBigBlue.sprite = game.sprites.wordBigBlue;
   return wordBigBlue;
 }

src/entities/wordFlag.js

@@ -3,6 +3,7 @@ game.createWordFlag = () => {
   wordFlag.addComponent(game.components.LoadPriority({priority: 3}));
   wordFlag.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordFlag.addComponent(game.components.Pushable({pushable: true}));
+  wordFlag.addComponent(game.components.Alive());
   wordFlag.sprite = game.sprites.wordFlag;
   return wordFlag;
 }

src/entities/wordIs.js

@@ -3,6 +3,7 @@ game.createWordIs = () => {
   wordIs.addComponent(game.components.LoadPriority({priority: 3}));
   wordIs.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordIs.addComponent(game.components.Stop({stop: true}));
+  wordIs.addComponent(game.components.Alive());
   wordIs.sprite = game.sprites.wordIs;
   return wordIs;
 }

src/entities/wordKill.js

@@ -3,6 +3,7 @@ game.createWordKill = () => {
   wordKill.addComponent(game.components.LoadPriority({priority: 3}));
   wordKill.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordKill.addComponent(game.components.Pushable({pushable: true}));
+  wordKill.addComponent(game.components.Alive());
   wordKill.sprite = game.sprites.wordKill;
   return wordKill;
 }

src/entities/wordLava.js

@@ -3,6 +3,7 @@ game.createWordLava = () => {
   wordLava.addComponent(game.components.LoadPriority({priority: 3}));
   wordLava.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordLava.addComponent(game.components.Pushable({pushable: true}));
+  wordLava.addComponent(game.components.Alive());
 
   wordLava.sprite = game.sprites.wordLava;
   return wordLava;

src/entities/wordPush.js

@@ -3,6 +3,7 @@ game.createWordPush = () => {
   wordPush.addComponent(game.components.LoadPriority({priority: 3}));
   wordPush.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordPush.addComponent(game.components.Pushable({pushable: true}));
+  wordPush.addComponent(game.components.Alive());
   wordPush.sprite = game.sprites.wordPush;
   return wordPush;
 }

src/entities/wordRock.js

@@ -3,6 +3,7 @@ game.createWordRock = () => {
   wordRock.addComponent(game.components.LoadPriority({priority: 3}));
   wordRock.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordRock.addComponent(game.components.Pushable({pushable: true}));
+  wordRock.addComponent(game.components.Alive());
   wordRock.sprite = game.sprites.wordRock;
   return wordRock;
 }

src/entities/wordSink.js

@@ -3,6 +3,7 @@ game.createWordSink = () => {
   wordSink.addComponent(game.components.LoadPriority({priority: 3}));
   wordSink.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordSink.addComponent(game.components.Pushable({pushable: true}));
+  wordSink.addComponent(game.components.Alive());
   wordSink.sprite = game.sprites.wordSink;
   return wordSink;
 }

src/entities/wordStop.js

@@ -3,6 +3,7 @@ game.createWordStop = () => {
   wordStop.addComponent(game.components.LoadPriority({priority: 3}));
   wordStop.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordStop.addComponent(game.components.Pushable({pushable: true}));
+  wordStop.addComponent(game.components.Alive());
   wordStop.sprite = game.sprites.wordStop;
   return wordStop;
 }

src/entities/wordWall.js

@@ -3,6 +3,7 @@ game.createWordWall = () => {
   wordWall.addComponent(game.components.LoadPriority({priority: 3}));
   wordWall.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordWall.addComponent(game.components.Pushable({pushable: true}));
+  wordWall.addComponent(game.components.Alive());
   wordWall.sprite = game.sprites.wordWall;
   return wordWall;
 }

src/entities/wordWater.js

@@ -3,6 +3,7 @@ game.createWordWater = () => {
   wordWater.addComponent(game.components.LoadPriority({priority: 3}));
   wordWater.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordWater.addComponent(game.components.Pushable({pushable: true}));
+  wordWater.addComponent(game.components.Alive());
   wordWater.sprite = game.sprites.wordWater;
   return wordWater;
 }

src/entities/wordWin.js

@@ -3,6 +3,7 @@ game.createWordWin = () => {
   wordWin.addComponent(game.components.LoadPriority({priority: 3}));
   wordWin.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordWin.addComponent(game.components.Pushable({pushable: true}));
+  wordWin.addComponent(game.components.Alive());
   wordWin.sprite = game.sprites.wordWin;
   return wordWin;
 }

src/entities/wordYou.js

@@ -3,6 +3,7 @@ game.createWordYou = () => {
   wordYou.addComponent(game.components.LoadPriority({priority: 3}));
   wordYou.addComponent(game.components.Appearance({rot: 0, width: 100, height: 100}));
   wordYou.addComponent(game.components.Pushable({pushable: true}));
+  wordYou.addComponent(game.components.Alive());
   wordYou.sprite = game.sprites.wordYou;
   return wordYou;
 }

src/game.js

@@ -3,10 +3,17 @@ game.loop = (timeStamp) => {
   let elapsedTime = timeStamp - lastTimeStamp;
   lastTimeStamp = timeStamp;
 
+
   game.systemOrder.map((i) => {
     game.systems[i].update(elapsedTime, game.entities);
   });
 
+  for (let id in game.entities) {
+    if (!game.entities[id].hasComponent("alive")) {
+      delete game.entities[id];
+    }
+  }
+
   if (game.nextLevel) {
     game.loadLevel(game.nextLevel);
     game.nextLevel = false;
@@ -26,7 +33,6 @@ game.initialize = () => {
     keyboardInput: game.system.KeyboardInput(),
   };
 
-
   lastTimeStamp = performance.now()
   requestAnimationFrame(game.loop);
 }

src/systems/gridSystem.js

@@ -52,6 +52,8 @@ game.system.GridSystem = ({ xDim, yDim }) => {
           });
 
           const proposed = {...newGridCoords};
+          let wall = false;
+          let entitiesToPush = [];
           if (entity.hasComponent("controllable")) {
             let found = false;
             do {
@@ -60,7 +62,12 @@ game.system.GridSystem = ({ xDim, yDim }) => {
               for (let entity of entitiesInCell.values()) {
                 if (entity.hasComponent("pushable")) {
                   found = true;
-                  entity.addComponent(game.components.Momentum({...momentumVector}));
+                  entitiesToPush.push(entity);
+                }
+                if (entity.hasComponent("stop")) {
+                  wall = true;
+                  found = false;
+                  break;
                 }
               }
               proposed.x += momentumVector.dx;
@@ -72,17 +79,28 @@ game.system.GridSystem = ({ xDim, yDim }) => {
             } while (found);
           }
 
-          if (entity.hasComponent("pushable") || entity.hasComponent("controllable")) {
-            for (let e of entitiesGrid[newGridCoords.y][newGridCoords.x].values()) {
-              if (e.hasComponent("stop")) {
-                newGridCoords = oldGridCoords;
-                break;
+          if (entity.hasComponent("controllable")) {
+            if (!wall) {
+              entity.components.gridPosition = {...entity.components.gridPosition, ...newGridCoords};
+              entitiesToPush.map((e) => e.addComponent(game.components.Momentum({...momentumVector})));
             }
-            }
-            entity.addComponent(game.components.Momentum({...momentumVector}));
+            const particles = game.createBorderParticles({
+              colors: ["#FF0000", "#00FF00", "#0000FF", "#FFFF00", "#FF00FF", "#00FFFF"],
+              maxAmount: 100,
+              minAmount: 25,
+              minLife: 100,
+              maxLife: 300,
+              minRadius: 1,
+              maxRadius: 3,
+              maxSpeed: 0.15,
+            });
+            particles.addComponent(game.components.Position(gridCoordsToGame(oldGridCoords)));
+            particles.addComponent(game.components.Appearance({width: 50, height: 50}));
+            game.entities[particles.id] = particles;
+          } else {
+            entity.components.gridPosition = {...entity.components.gridPosition, ...newGridCoords};
           }
 
-          entity.components.gridPosition = {...entity.components.gridPosition, ...newGridCoords};
 
           entity.components.position = {
             ...entity.components.position,

src/utils/randInRange.js

@@ -0,0 +1,4 @@
+const randomInRange = (min, max) => {
+  // min <= random number <= max
+  return Math.floor(Math.random() * (max - min + 1)) + min;
+}