You can now hitTest against P2 bodies + example created.

Author: photonstorm

examples/p2 physics/body click.js

@@ -0,0 +1,92 @@
+
+var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });
+
+function preload() {
+
+	game.load.image('contra2', 'assets/pics/contra2.png');
+	game.load.image('bunny', 'assets/sprites/bunny.png');
+	game.load.image('block', 'assets/sprites/block.png');
+	game.load.image('wizball', 'assets/sprites/wizball.png');
+
+	game.load.physics('physicsData', 'assets/physics/sprites.json');
+
+}
+
+var contra;
+var bunny;
+var block;
+var wizball;
+
+var result = '';
+
+function create() {
+
+	//	Enable p2 physics
+	game.physics.startSystem(Phaser.Physics.P2JS);
+
+	contra = game.add.sprite(100, 200, 'contra2');
+	bunny = game.add.sprite(550, 200, 'bunny');
+	block = game.add.sprite(300, 400, 'block');
+	wizball = game.add.sprite(500, 500, 'wizball');
+
+	//	Enable the physics bodies on all the sprites and turn on the visual debugger
+	game.physics.p2.enable([ contra, bunny, block, wizball ], true);
+
+	//	Convex polys
+	contra.body.clearShapes();
+	contra.body.loadPolygon('physicsData', 'contra2');
+
+	bunny.body.clearShapes();
+	bunny.body.loadPolygon('physicsData', 'bunny');
+
+	//	Circle
+	wizball.body.setCircle(45);
+
+	game.input.onDown.add(click, this);
+
+}
+
+function click(pointer) {
+
+	//	You can hitTest against an array of Sprites, an array of Phaser.Physics.P2.Body objects, or don't give anything
+	//	in which case it will check every Body in the whole world.
+
+	var bodies = game.physics.p2.hitTest(pointer.position, [ contra, bunny, block, wizball ]);
+
+	if (bodies.length === 0)
+	{
+		result = "You didn't click a Body";
+	}
+	else
+	{
+		result = "You clicked: ";
+
+		for (var i = 0; i < bodies.length; i++)
+		{
+			//	The bodies that come back are p2.Body objects.
+			//	The parent property is a Phaser.Physics.P2.Body which has a property called 'sprite'
+			//	This relates to the sprites we created earlier.
+			//	The 'key' property is just the texture name, which works well for this demo but you probably need something more robust for an actual game.
+			result = result + bodies[i].parent.sprite.key;
+
+			if (i < bodies.length - 1)
+			{
+				result = result + ', ';
+			}
+		}
+
+	}
+
+}
+
+function update() {
+
+	bunny.body.rotateLeft(2);
+
+}
+
+function render() {
+
+	game.debug.text(result, 32, 32);
+
+}

src/physics/p2/Body.js

@@ -56,7 +56,7 @@ Phaser.Physics.P2.Body = function (game, sprite, x, y, mass) {
     * @property {p2.Body} data - The p2 Body data.
     * @protected
     */
-    this.data = new p2.Body({ position:[this.world.pxmi(x), this.world.pxmi(y)], mass: mass });
+    this.data = new p2.Body({ position: [ this.world.pxmi(x), this.world.pxmi(y) ], mass: mass });
     this.data.parent = this;
 
     /**
@@ -686,13 +686,14 @@ Phaser.Physics.P2.Body.prototype = {
     */
     clearShapes: function () {
 
-        for (var i = this.data.shapes.length - 1; i >= 0; i--)
+        var i = this.data.shapes.length;
+
+        while (i--)
         {
-            var shape = this.data.shapes[i];
-            this.data.removeShape(shape);
+            this.data.removeShape(this.data.shapes[i]);
         }
 
-        this.shapeChanged()
+        this.shapeChanged();
 
     },
 
@@ -714,7 +715,7 @@ Phaser.Physics.P2.Body.prototype = {
         if (typeof rotation === 'undefined') { rotation = 0; }
 
         this.data.addShape(shape, [this.world.pxmi(offsetX), this.world.pxmi(offsetY)], rotation);
-        this.shapeChanged()
+        this.shapeChanged();
 
         return shape;
 
@@ -900,7 +901,8 @@ Phaser.Physics.P2.Body.prototype = {
         // console.table(path);
 
         result = this.data.fromPolygon(path, options);
-        this.shapeChanged()
+
+        this.shapeChanged();
 
         return result
     },

src/physics/p2/World.js

@@ -845,15 +845,44 @@ Phaser.Physics.P2.prototype = {
     },
 
     /**
-    * Test if a world point overlaps bodies.
+    * Test if a world point overlaps bodies. You will get an array of actual P2 bodies back. You can find out which Sprite a Body belongs to
+    * (if any) by checking the Body.parent.sprite property. Body.parent is a Phaser.Physics.P2.Body property.
     *
     * @method Phaser.Physics.P2#hitTest
-    * @param {Phaser.Point} worldPoint - Point to use for intersection tests.
-    * @param {Array} bodies - A list of objects to check for intersection.
-    * @param {number} precision - Used for matching against particles and lines. Adds some margin to these infinitesimal objects.
+    * @param {Phaser.Point} worldPoint - Point to use for intersection tests. The points values must be in world (pixel) coordinates.
+    * @param {Array<Phaser.Physics.P2.Body|Phaser.Sprite|p2.Body>} [bodies] - A list of objects to check for intersection. If not given it will check Phaser.Physics.P2.world.bodies (i.e. all world bodies)
+    * @param {number} [precision=5] - Used for matching against particles and lines. Adds some margin to these infinitesimal objects.
+    * @param {boolean} [filterStatic=false] - If true all Static objects will be removed from the results array.
     * @return {Array} Array of bodies that overlap the point.
     */
-    hitTest: function (worldPoint, bodies, precision) {
+    hitTest: function (worldPoint, bodies, precision, filterStatic) {
+
+        if (typeof bodies === 'undefined') { bodies = this.world.bodies; }
+        if (typeof precision === 'undefined') { precision = 5; }
+        if (typeof filterStatic === 'undefined') { filterStatic = false; }
+
+        var physicsPosition = [ this.pxmi(worldPoint.x), this.pxmi(worldPoint.y) ];
+
+        var query = [];
+        var i = bodies.length;
+
+        while (i--)
+        {
+            if (bodies[i] instanceof Phaser.Physics.P2.Body && !(filterStatic && bodies[i].data.motionState === p2.Body.STATIC))
+            {
+                query.push(bodies[i].data);
+            }
+            else if (bodies[i] instanceof p2.Body && bodies[i].parent && !(filterStatic && bodies[i].motionState === p2.Body.STATIC))
+            {
+                query.push(bodies[i]);
+            }
+            else if (bodies[i] instanceof Phaser.Sprite && bodies[i].hasOwnProperty('body') && !(filterStatic && bodies[i].body.data.motionState === p2.Body.STATIC))
+            {
+                query.push(bodies[i].body.data);
+            }
+        }
+
+        return this.world.hitTest(physicsPosition, query, precision);
 
     },
 
@@ -865,7 +894,7 @@ Phaser.Physics.P2.prototype = {
     */
     toJSON: function () {
 
-        this.world.toJSON();
+        return this.world.toJSON();
 
     },