[WIP] New Demo ✨

build.js

@@ -507,15 +507,113 @@
 
 
 
-  System.register("src/lib/play", ["src/lib/frames", "src/lib/gravity", "src/main"], function ($__export) {
+  System.register("src/lib/forces/global-gravity", ["src/lib/vector", "src/main"], function ($__export) {
+    "use strict";
+    var __moduleName = "src/lib/forces/global-gravity";
+    var Vector, Bolt;
+    function GlobalGravity(mass) {
+      var g = arguments[1] !== void 0 ? arguments[1] : Bolt.ugravitation || 10;
+      this.force = new Vector(0, -mass * g, 0);
+    }
+    return {
+      setters: [function (m) {
+        Vector = m["default"];
+      }, function (m) {
+        Bolt = m["default"];
+      }],
+      execute: function () {
+        GlobalGravity.prototype.apply = function (particle, duration) {
+          particle.acceleration.add(this.force);
+        };
+        $__export("default", GlobalGravity);
+      }
+    };
+  });
+
+
+
+  System.register("src/lib/forces/gravity", ["src/lib/vector", "src/main"], function ($__export) {
+    "use strict";
+    var __moduleName = "src/lib/forces/gravity";
+    var Vector, Bolt;
+    function Gravity(o1, o2) {
+      var mass = o1.mass * o2.mass;
+      var g = Bolt.ugravitation || 10;
+      var acc = mass * g;
+      var distance = new Vector(o1.position.x - o2.position.x, o1.position.y - o2.position.y, o1.position.z - o2.position.z);
+      this.force = new Vector(acc / (distance.x * distance.x), acc / (distance.y * distance.y), acc / (distance.z * distance.z));
+    }
+    return {
+      setters: [function (m) {
+        Vector = m["default"];
+      }, function (m) {
+        Bolt = m["default"];
+      }],
+      execute: function () {
+        Gravity.prototype.apply = function (particle, duration) {
+          particle.acceleration.add(this.force);
+        };
+        $__export("default", Gravity);
+      }
+    };
+  });
+
+
+
+  System.register("src/lib/force", ["src/lib/vector", "src/lib/forces/global-gravity", "src/lib/forces/gravity"], function ($__export) {
+    "use strict";
+    var __moduleName = "src/lib/force";
+    var Vector, GlobalGravity, Gravity, Force;
+    return {
+      setters: [function (m) {
+        Vector = m["default"];
+      }, function (m) {
+        GlobalGravity = m["default"];
+      }, function (m) {
+        Gravity = m["default"];
+      }],
+      execute: function () {
+        Force = {
+          registry: [],
+          generators: {
+            GlobalGravity: GlobalGravity,
+            Gravity: Gravity
+          },
+          add: function (particle, force) {
+            this.registry.push([particle, force]);
+            return this.forces;
+          },
+          remove: function (particle, force) {
+            var reg = this.registry;
+            this.registry.forEach(function (el, i) {
+              if (el[0] === particle && el[1] === force) reg.splice(i, 1);
+            });
+          },
+          clear: function () {
+            this.registry.length = 0;
+          },
+          run: function (duration) {
+            this.registry.forEach(function (el) {
+              el[1].apply(el[0], duration);
+            });
+          }
+        };
+        $__export("default", Force);
+      }
+    };
+  });
+
+
+
+  System.register("src/lib/play", ["src/lib/frames", "src/lib/force", "src/main"], function ($__export) {
     "use strict";
     var __moduleName = "src/lib/play";
-    var Frames, Gravity, Bolt, reqAnimFrame, cancelAnimFrame, Play;
+    var Frames, Force, Bolt, reqAnimFrame, cancelAnimFrame, Play;
     return {
       setters: [function (m) {
         Frames = m["default"];
       }, function (m) {
-        Gravity = m["default"];
+        Force = m["default"];
       }, function (m) {
         Bolt = m["default"];
       }],
@@ -532,13 +630,14 @@
                     len = Bolt.objects.length; i < len; i++) {
                   var object = Bolt.objects[i];
                   if (Bolt.configs.globalGravity) {
-                    var force = Gravity.global(object.inverseMass);
-                    object.position.add(object.velocity.clone().scalar(Frames.elapsed));
-                    var acc = object.acceleration.clone();
-                    acc.add(force);
-                    object.velocity.add(acc.scalar(Frames.elapsed));
-                    object.velocity.scalar(Math.pow(object.damping, Frames.elapsed));
+                    var gravity = new Force.generators.GlobalGravity(object.mass);
+                    Force.add(object, gravity);
                   }
+                  object.position.add(object.velocity.clone().scalar(Frames.elapsed));
+                  object.acceleration.scalar(Frames.elapsed);
+                  object.velocity.add(object.acceleration);
+                  Force.run();
+                  Force.clear();
                 }
                 if (fn) fn.apply(this, arguments);
                 loop();
@@ -561,10 +660,10 @@
 
 
 
-  System.register("src/main", ["src/lib/vector", "src/lib/particle", "src/lib/gravity", "src/lib/frames", "src/lib/play"], function ($__export) {
+  System.register("src/main", ["src/lib/vector", "src/lib/particle", "src/lib/gravity", "src/lib/frames", "src/lib/play", "src/lib/force"], function ($__export) {
     "use strict";
     var __moduleName = "src/main";
-    var Vector, Particle, Gravity, Frames, Play, Bolt;
+    var Vector, Particle, Gravity, Frames, Play, Force, Bolt;
     return {
       setters: [function (m) {
         Vector = m["default"];
@@ -576,6 +675,8 @@
         Frames = m["default"];
       }, function (m) {
         Play = m["default"];
+      }, function (m) {
+        Force = m["default"];
       }],
       execute: function () {
         Bolt = {
@@ -591,7 +692,8 @@
           Particle: Particle,
           Gravity: Gravity,
           Frames: Frames,
-          Play: Play
+          Play: Play,
+          Force: Force
         };
         window.Bolt = Bolt;
         $__export("default", Bolt);

demos/fireworks/demo.js

@@ -55,7 +55,7 @@ Bolt.Play.start(function() {
     fireworks.push(new Firework({
       type: 0,
       position: Bolt.Vector(window.innerWidth/4, 0, 0),
-      mass: 4
+      mass: 2
     }));
     count = 0;
   }
@@ -79,7 +79,7 @@ Bolt.Play.start(function() {
           type: 1,
           position: fw.particle.position.clone(),
           velocity: vel,
-          mass: 2
+          mass: 1
         });
         fireworks.push(childFirework);
       }

demos/fireworks/index.html

@@ -2,7 +2,7 @@
 <html lang="en">
 <head>
   <meta charset="UTF-8">
-  <title>Bolt</title>
+  <title>Bolt | Fireworks Demo</title>
 </head>
 <body style="margin: 0">
   <p style="position: absolute;top:5px;left:10px;" id='fps'></p>

demos/mouse-gravitation/demo.js

@@ -0,0 +1,68 @@
+var world = new LiThree.World(),
+    renderer = new LiThree.WebGLRenderer(window.innerWidth, window.innerHeight, world),
+    camera = renderer.camera;
+
+camera.position.z -= 10;
+
+var light = new LiThree.Light.Point();
+light.diffuseColor.hex = '#16A086';
+light.position.x = -10;
+light.position.z = -20;
+light.position.y = 0;
+world.add(light);
+
+// renderer.canvas.style.setProperty('background', 'black');
+
+
+var mouse = new Bolt.Particle({
+  position: Bolt.Vector(0, 0, 0),
+  mass: 1
+});
+
+var middle = new Bolt.Vector(window.innerWidth / 2, window.innerHeight / 2, 0);
+
+for(var i = 0; i < 20; i++) {
+  var p = new Bolt.Particle({
+    position: middle.clone(),
+    mass: 1
+  });
+
+  var sphere =  new LiThree.ObjectFactory.Sphere(50, 20, 20);
+  sphere.color.rgb(0.2, 0.2, 0.2);
+
+  world.add(sphere);
+
+  p.view = sphere;
+}
+
+renderer.initShapes();
+
+function syncPositions(particle) {
+  particle.view.position.x = particle.position.x;
+  particle.view.position.y = particle.position.y;
+  particle.view.position.z = particle.position.z;
+}
+
+Bolt.configs.globalGravity = false;
+
+Bolt.Play.start(function() {
+  // i = 1 Ignore mouse
+  for(var i = 1, len = Bolt.objects.length; i < len; i++) {
+    var p = Bolt.objects[i];
+
+    // var mouseGravity = new Bolt.Force.generators.Gravity(p, mouse);
+
+    // Bolt.Force.add(p, mouseGravity);
+
+    syncPositions(p);
+  }
+
+  renderer.draw();
+});
+
+document.body.appendChild(renderer.canvas);
+
+renderer.canvas.addEventListener('mousemove', function(e) {
+  mouse.position.x = e.pageX;
+  mouse.position.y = e.pageY;
+});

demos/mouse-gravitation/index.html

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>Bolt | Mouse Gravitation Demo</title>
+</head>
+<body style="margin: 0">
+  <p style="position: absolute;top:5px;left:10px;" id='fps'></p>
+
+  <script src='../../build.js'></script>
+  <script src='lithree.min.js'></script>
+  <script src='demo.js'></script>
+</body>
+</html>

src/lib/force.js

@@ -0,0 +1,33 @@
+import Vector from './vector';
+import GlobalGravity from './forces/global-gravity';
+import Gravity from './forces/gravity';
+
+var Force = {
+  registry: [],
+  generators: {
+    GlobalGravity: GlobalGravity,
+    Gravity: Gravity
+  },
+  add: function(particle, force) {
+    this.registry.push([particle, force]);
+
+    return this.forces;
+  },
+  remove: function(particle, force) {
+    var reg = this.registry;
+    this.registry.forEach(function(el, i) {
+      if(el[0] === particle && el[1] === force) reg.splice(i, 1);
+    });
+  },
+  clear: function() {
+    this.registry.length = 0;
+  },
+  run: function(duration) {
+    this.registry.forEach(function(el) {
+      // force.run(particle, duration);
+      el[1].apply(el[0], duration);
+    });
+  }
+};
+
+export default Force;

src/lib/forces/global-gravity.js

@@ -0,0 +1,12 @@
+import Vector from '../vector';
+import Bolt from '../../main';
+
+function GlobalGravity(mass, g = Bolt.ugravitation || 10) {
+  this.force = new Vector(0, -mass*g, 0);
+}
+
+GlobalGravity.prototype.apply = function(particle, duration) {
+  particle.acceleration.add(this.force);
+};
+
+export default GlobalGravity;

src/lib/forces/gravity.js

@@ -0,0 +1,26 @@
+import Vector from '../vector';
+import Bolt from '../../main';
+
+function Gravity(o1, o2) {
+  var mass = o1.mass * o2.mass;
+  var g = Bolt.ugravitation || 10;
+  var acc = mass*g;
+
+  var distance = new Vector(
+    o1.position.x - o2.position.x,
+    o1.position.y - o2.position.y,
+    o1.position.z - o2.position.z
+  );
+
+  this.force = new Vector(
+    acc / (distance.x*distance.x),
+    acc / (distance.y*distance.y),
+    acc / (distance.z*distance.z)
+  );
+}
+
+Gravity.prototype.apply = function(particle, duration) {
+  particle.acceleration.add(this.force);
+};
+
+export default Gravity;

src/lib/particle.js

@@ -30,6 +30,6 @@ Object.defineProperties(Particle.prototype, {
 
 Particle.prototype.destroy = function() {
   return Bolt.objects.splice(Bolt.objects.indexOf(this), 1);
-}
+};
 
 export default Particle;

src/lib/play.js

@@ -1,5 +1,5 @@
 import Frames from './frames';
-import Gravity from './gravity';
+import Force from './force';
 import Bolt from '../main';
 
 
@@ -22,29 +22,24 @@ var Play = {
 
     (function loop() {
       reqAnimFrame(function(now) {
-        // ctx.clearRect(0, 0, canvas.width, canvas.height);
-        // ctx.fillStyle = 'black';
-        // ctx.fillRect(0, 0, canvas.width, canvas.height);
         var avg = Frames.tick(now);
 
         for(var i = 0, len = Bolt.objects.length; i < len; i++) {
           var object = Bolt.objects[i];
 
           if(Bolt.configs.globalGravity) {
-            var force = Gravity.global(object.inverseMass);
-
-            object.position.add(object.velocity.clone().scalar(Frames.elapsed));
-
-            var acc = object.acceleration.clone();
-            acc.add(force);
-            object.velocity.add(acc.scalar(Frames.elapsed));
-            object.velocity.scalar(Math.pow(object.damping, Frames.elapsed));
-
-            // ctx.beginPath();
-            // ctx.fillStyle = object.color;
-            // ctx.arc(object.position.x, object.position.y, object.mass, 0, 2*Math.PI);
-            // ctx.fill();
+            var gravity = new Force.generators.GlobalGravity(object.mass);
+            Force.add(object, gravity);
           }
+
+          object.position.add(object.velocity.clone().scalar(Frames.elapsed));
+            // object.velocity.scalar(Math.pow(object.damping, Frames.elapsed));
+
+          object.acceleration.scalar(Frames.elapsed);
+          object.velocity.add(object.acceleration);
+
+          Force.run();
+          Force.clear();
         }
 
         if(fn) fn.apply(this, arguments);

src/main.js

@@ -3,6 +3,7 @@ import Particle from './lib/particle';
 import Gravity from './lib/gravity';
 import Frames from './lib/frames';
 import Play from './lib/play';
+import Force from './lib/force';
 
 var Bolt = {
   configs: {
@@ -22,7 +23,8 @@ var Bolt = {
   Particle: Particle,
   Gravity: Gravity,
   Frames: Frames,
-  Play: Play
+  Play: Play,
+  Force: Force
 };
 
 window.Bolt = Bolt;