1 files changed, 123 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/MotionMark/tests/bouncing-particles/resources/bouncing-particles.js b/third_party/webkit/PerformanceTests/MotionMark/tests/bouncing-particles/resources/bouncing-particles.js
new file mode 100644
index 0000000000..27e02a7085
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/MotionMark/tests/bouncing-particles/resources/bouncing-particles.js
@@ -0,0 +1,123 @@
+function BouncingParticle(stage)
+{
+    this._stageSize = stage.size;
+    this.size = stage.particleSize;
+
+    this.position = Stage.randomPosition(stage.size.subtract(stage.particleSize));
+    this._angle = Stage.randomAngle();
+    this._velocity = Stage.randomVelocity(stage.maxVelocity);
+    this.rotater = Stage.randomRotater();
+}
+
+BouncingParticle.prototype =
+{
+    get center()
+    {
+        return this.position.add(this.size.center);
+    },
+
+    animate: function(timeDelta)
+    {
+        this.position = this.position.move(this._angle, this._velocity, timeDelta);
+        this.rotater.next(timeDelta);
+
+        // If particle is going to move off right side
+        if (this.position.x + this.size.x > this._stageSize.x) {
+            // If direction is East-South, go West-South.
+            if (this._angle >= 0 && this._angle < Math.PI / 2)
+                this._angle = Math.PI - this._angle;
+            // If angle is East-North, go West-North.
+            else if (this._angle > Math.PI / 2 * 3)
+                this._angle = this._angle - (this._angle - Math.PI / 2 * 3) * 2;
+            // Make sure the particle does not go outside the stage boundaries.
+            this.position.x = this._stageSize.x - this.size.x;
+        }
+
+        // If particle is going to move off left side
+        if (this.position.x < 0) {
+            // If angle is West-South, go East-South.
+            if (this._angle > Math.PI / 2 && this._angle < Math.PI)
+                this._angle = Math.PI - this._angle;
+            // If angle is West-North, go East-North.
+            else if (this._angle > Math.PI && this._angle < Math.PI / 2 * 3)
+                this._angle = this._angle + (Math.PI / 2 * 3 - this._angle) * 2;
+            // Make sure the particle does not go outside the stage boundaries.
+            this.position.x = 0;
+        }
+
+        // If particle is going to move off bottom side
+        if (this.position.y + this.size.y > this._stageSize.y) {
+            // If direction is South, go North.
+            if (this._angle > 0 && this._angle < Math.PI)
+                this._angle = Math.PI * 2 - this._angle;
+            // Make sure the particle does not go outside the stage boundaries.
+            this.position.y = this._stageSize.y - this.size.y;
+        }
+
+        // If particle is going to move off top side
+        if (this.position.y < 0) {
+            // If direction is North, go South.
+            if (this._angle > Math.PI && this._angle < Math.PI * 2)
+                this._angle = this._angle - (this._angle - Math.PI) * 2;
+            // Make sure the particle does not go outside the stage boundaries.
+            this.position.y = 0;
+        }
+    }
+}
+
+BouncingParticlesStage = Utilities.createSubclass(Stage,
+    function()
+    {
+        Stage.call(this);
+        this.particles = [];
+    }, {
+
+    initialize: function(benchmark, options)
+    {
+        Stage.prototype.initialize.call(this, benchmark, options);
+        this.particleSize = new Point(parseInt(options["particleWidth"]) || 10, parseInt(options["particleHeight"]) || 10);
+        this.maxVelocity = Math.max(parseInt(options["maxVelocity"]) || 500, 100);
+    },
+
+    parseShapeParameters: function(options)
+    {
+        this.shape = options["shape"] || "circle";
+        this.fill = options["fill"] || "solid";
+        this.clip = options["clip"] || "";
+        this.blend = options["blend"] || false;
+        this.filter = options["filter"] || false;
+    },
+
+    animate: function(timeDelta)
+    {
+        this.particles.forEach(function(particle) {
+            particle.animate(timeDelta);
+        });
+    },
+
+    tune: function(count)
+    {
+        if (count == 0)
+            return;
+
+        if (count > 0) {
+            for (var i = 0; i < count; ++i)
+                this.particles.push(this.createParticle());
+            return;
+        }
+
+        count = Math.min(-count, this.particles.length);
+
+        if (typeof(this.particleWillBeRemoved) == "function") {
+            for (var i = 0; i < count; ++i)
+                this.particleWillBeRemoved(this.particles[this.particles.length - 1 - i]);
+        }
+
+        this.particles.splice(-count, count);
+    },
+
+    complexity: function()
+    {
+        return this.particles.length;
+    }
+});