新增事件发送接收器

demo/libs/framework/framework.d.ts

@@ -576,7 +576,7 @@ declare class Rectangle {
 declare class Vector2 {
     x: number;
     y: number;
-    constructor(x: number, y?: number);
+    constructor(x?: number, y?: number);
     static add(value1: Vector2, value2: Vector2): Vector2;
     static divide(value1: Vector2, value2: Vector2): Vector2;
     static multiply(value1: Vector2, value2: Vector2): Vector2;
@@ -675,18 +675,6 @@ declare class ShapeCollisions {
     static closestPointOnLine(lineA: Vector2, lineB: Vector2, closestTo: Vector2): Vector2;
     static pointToPoly(point: Vector2, poly: Polygon): CollisionResult;
 }
-declare class Particle {
-    position: Vector2;
-    lastPosition: Vector2;
-    isPinned: boolean;
-    pinnedPosition: any;
-    acceleration: Vector2;
-    mass: number;
-    radius: number;
-    collidesWithColliders: boolean;
-    constructor(position: Vector2);
-    applyForce(force: Vector2): void;
-}
 declare class SpatialHash {
     gridBounds: Rectangle;
     private _raycastParser;
@@ -714,6 +702,13 @@ declare class NumberDictionary {
     getAllObjects(): Collider[];
     clear(): void;
 }
+declare class Emitter<T> {
+    private _messageTable;
+    constructor();
+    addObserver(eventType: T, handler: Function): void;
+    removeObserver(eventType: T, handler: Function): void;
+    emit(eventType: T, data: any): void;
+}
 declare class Triangulator {
     triangleIndices: number[];
     private _triPrev;

demo/libs/framework/framework.js

@@ -2719,8 +2719,8 @@ var Vector2 = (function () {
     function Vector2(x, y) {
         this.x = 0;
         this.y = 0;
-        this.x = x;
-        this.y = y ? y : x;
+        this.x = x ? x : 0;
+        this.y = y ? y : this.x;
     }
     Vector2.add = function (value1, value2) {
         var result = new Vector2(0, 0);
@@ -3026,7 +3026,7 @@ var Polygon = (function (_super) {
         var verts = new Vector2[vertCount];
         for (var i = 0; i < vertCount; i++) {
             var a = 2 * Math.PI * (i / vertCount);
-            verts[i] = new Vector2(Math.cos(a), Math.sign(a) * radius);
+            verts[i] = new Vector2(Math.cos(a), Math.sin(a) * radius);
         }
         return verts;
     };
@@ -3086,6 +3086,12 @@ var ShapeCollisions = (function () {
     ShapeCollisions.polygonToPolygon = function (first, second) {
         var result = new CollisionResult();
         var isIntersecting = true;
+        var firstEdges = first.edgeNormals;
+        var secondEdges = second.edgeNormals;
+        var minIntervalDistance = Number.POSITIVE_INFINITY;
+        var translationAxis = new Vector2();
+        var polygonOffset = Vector2.subtract(first.position, second.position);
+        var axis;
     };
     ShapeCollisions.circleToPolygon = function (circle, polygon) {
         var result = new CollisionResult();
@@ -3156,22 +3162,6 @@ var ShapeCollisions = (function () {
     };
     return ShapeCollisions;
 }());
-var Particle = (function () {
-    function Particle(position) {
-        this.position = new Vector2(0, 0);
-        this.lastPosition = new Vector2(0, 0);
-        this.acceleration = new Vector2(0, 0);
-        this.mass = 1;
-        this.radius = 0;
-        this.collidesWithColliders = true;
-        this.position = position;
-        this.lastPosition = position;
-    }
-    Particle.prototype.applyForce = function (force) {
-        this.acceleration = Vector2.add(this.acceleration, new Vector2(force.x / this.mass, force.y / this.mass));
-    };
-    return Particle;
-}());
 var SpatialHash = (function () {
     function SpatialHash(cellSize) {
         if (cellSize === void 0) { cellSize = 100; }
@@ -3284,6 +3274,30 @@ var NumberDictionary = (function () {
     };
     return NumberDictionary;
 }());
+var Emitter = (function () {
+    function Emitter() {
+        this._messageTable = new Map();
+    }
+    Emitter.prototype.addObserver = function (eventType, handler) {
+        var list = this._messageTable.get(eventType);
+        if (!list) {
+            list = [];
+            this._messageTable.set(eventType, list);
+        }
+        if (list.contains(handler))
+            console.warn("您试图添加相同的观察者两次");
+        list.push(handler);
+    };
+    Emitter.prototype.removeObserver = function (eventType, handler) {
+        this._messageTable.get(eventType).remove(handler);
+    };
+    Emitter.prototype.emit = function (eventType, data) {
+        var list = this._messageTable.get(eventType);
+        for (var i = list.length - 1; i >= 0; i--)
+            list[i](data);
+    };
+    return Emitter;
+}());
 var Triangulator = (function () {
     function Triangulator() {
         this.triangleIndices = [];