移动类至es模块

source/src/Physics/Verlet/SpatialHash.ts

@@ -1,249 +1,269 @@
-class SpatialHash {
-    public gridBounds: Rectangle = new Rectangle();
+module es {
+    export class SpatialHash {
+        public gridBounds: Rectangle = new Rectangle();
 
-    private _raycastParser: RaycastResultParser;
-    /** 散列中每个单元格的大小 */
-    private _cellSize: number;
-    /** 1除以单元格大小。缓存结果，因为它被大量使用。 */
-    private _inverseCellSize: number;
-    /** 缓存的循环用于重叠检查 */
-    private _overlapTestCircle: Circle = new Circle(0);
-    /** 用于返回冲突信息的共享HashSet */
-    private _tempHashSet: Collider[] = [];
-    /** 保存所有数据的字典 */
-    private _cellDict: NumberDictionary = new NumberDictionary();
+        public _raycastParser: RaycastResultParser;
+        /**
+         * 散列中每个单元格的大小
+         */
+        public _cellSize: number;
+        /**
+         * 1除以单元格大小。缓存结果，因为它被大量使用。
+         */
+        public _inverseCellSize: number;
+        /**
+         * 缓存的循环用于重叠检查
+         */
+        public _overlapTestCircle: Circle = new Circle(0);
+        /**
+         * 保存所有数据的字典
+         */
+        public _cellDict: NumberDictionary = new NumberDictionary();
+        /**
+         * 用于返回冲突信息的共享HashSet
+         */
+        public _tempHashSet: Collider[] = [];
 
-    constructor(cellSize: number = 100) {
-        this._cellSize = cellSize;
-        this._inverseCellSize = 1 / this._cellSize;
-        this._raycastParser = new RaycastResultParser();
-    }
-
-    /**
-     * 从SpatialHash中删除对象
-     * @param collider 
-     */
-    public remove(collider: Collider) {
-        let bounds = collider.registeredPhysicsBounds;
-        let p1 = this.cellCoords(bounds.x, bounds.y);
-        let p2 = this.cellCoords(bounds.right, bounds.bottom);
-
-        for (let x = p1.x; x <= p2.x; x++) {
-            for (let y = p1.y; y <= p2.y; y++) {
-                // 单元格应该始终存在，因为这个碰撞器应该在所有查询的单元格中
-                let cell = this.cellAtPosition(x, y);
-                if (!cell)
-                    console.error(`removing Collider [${collider}] from a cell that it is not present in`);
-                else
-                    cell.remove(collider);
-            }
-        }
-    }
-
-    /**
-     * 将对象添加到SpatialHash
-     * @param collider 
-     */
-    public register(collider: Collider) {
-        let bounds = collider.bounds;
-        collider.registeredPhysicsBounds = bounds;
-        let p1 = this.cellCoords(bounds.x, bounds.y);
-        let p2 = this.cellCoords(bounds.right, bounds.bottom);
-
-        // 更新边界以跟踪网格大小
-        if (!this.gridBounds.contains(p1.x, p1.y)) {
-            this.gridBounds = RectangleExt.union(this.gridBounds, p1);
+        constructor(cellSize: number = 100) {
+            this._cellSize = cellSize;
+            this._inverseCellSize = 1 / this._cellSize;
+            this._raycastParser = new RaycastResultParser();
         }
 
-        if (!this.gridBounds.contains(p2.x, p2.y)) {
-            this.gridBounds = RectangleExt.union(this.gridBounds, p2);
+        /**
+         * 获取单元格的x,y值作为世界空间的x,y值
+         * @param x
+         * @param y
+         */
+        private cellCoords(x: number, y: number): Vector2 {
+            return new Vector2(Math.floor(x * this._inverseCellSize), Math.floor(y * this._inverseCellSize));
         }
 
-        for (let x = p1.x; x <= p2.x; x++) {
-            for (let y = p1.y; y <= p2.y; y++) {
-                // 如果没有单元格，我们需要创建它
-                let c = this.cellAtPosition(x, y, true);
-                if (c.indexOf(collider) == -1)
-                    c.push(collider);
-            }
-        }
-    }
-
-    public clear(){
-        this._cellDict.clear();
-    }
-
-    /**
-     * 获取位于指定圆内的所有碰撞器
-     * @param circleCenter 
-     * @param radius 
-     * @param results 
-     * @param layerMask 
-     */
-    public overlapCircle(circleCenter: Vector2, radius: number, results: Collider[], layerMask) {
-        let bounds = new Rectangle(circleCenter.x - radius, circleCenter.y - radius, radius * 2, radius * 2);
-
-        this._overlapTestCircle.radius = radius;
-        // this._overlapTestCircle.position = circleCenter;
-        
-        let resultCounter = 0;
-        let aabbBroadphaseResult = this.aabbBroadphase(bounds, null, layerMask);
-        bounds = aabbBroadphaseResult.bounds;
-        let potentials = aabbBroadphaseResult.tempHashSet;
-        for (let i = 0; i < potentials.length; i++) {
-            let collider = potentials[i];
-            if (collider instanceof BoxCollider) {
-                results[resultCounter] = collider;
-                resultCounter++;
-            } else if (collider instanceof CircleCollider) {
-                if (collider.shape.overlaps(this._overlapTestCircle)){
-                    results[resultCounter] = collider;
-                    resultCounter ++;
+        /**
+         * 获取世界空间x,y值的单元格。
+         * 如果单元格为空且createCellIfEmpty为true，则会创建一个新的单元格
+         * @param x
+         * @param y
+         * @param createCellIfEmpty
+         */
+        private cellAtPosition(x: number, y: number, createCellIfEmpty: boolean = false) {
+            let cell: Collider[] = this._cellDict.tryGetValue(x, y);
+            if (!cell) {
+                if (createCellIfEmpty) {
+                    cell = [];
+                    this._cellDict.add(x, y, cell);
                 }
-            } else if(collider instanceof PolygonCollider) {
-                if (collider.shape.overlaps(this._overlapTestCircle)){
-                    results[resultCounter] = collider;
-                    resultCounter ++;
-                }
-            } else {
-                throw new Error("overlapCircle against this collider type is not implemented!");
             }
-
-            // 如果我们所有的结果数据有了则返回
-            if (resultCounter == results.length)
-                return resultCounter;
+            return cell;
         }
 
-        return resultCounter;
-    }
+        /**
+         * 将对象添加到SpatialHash
+         * @param collider
+         */
+        public register(collider: Collider) {
+            let bounds = collider.bounds;
+            collider.registeredPhysicsBounds = bounds;
+            let p1 = this.cellCoords(bounds.x, bounds.y);
+            let p2 = this.cellCoords(bounds.right, bounds.bottom);
 
-    /**
-     * 返回边框与单元格相交的所有对象
-     * @param bounds 
-     * @param excludeCollider 
-     * @param layerMask 
-     */
-    public aabbBroadphase(bounds: Rectangle, excludeCollider: Collider, layerMask: number) {
-        this._tempHashSet.length = 0;
+            // 更新边界以跟踪网格大小
+            if (!this.gridBounds.contains(p1.x, p1.y)) {
+                this.gridBounds = RectangleExt.union(this.gridBounds, p1);
+            }
 
-        let p1 = this.cellCoords(bounds.x, bounds.y);
-        let p2 = this.cellCoords(bounds.right, bounds.bottom);
+            if (!this.gridBounds.contains(p2.x, p2.y)) {
+                this.gridBounds = RectangleExt.union(this.gridBounds, p2);
+            }
 
-        for (let x = p1.x; x <= p2.x; x++) {
-            for (let y = p1.y; y <= p2.y; y++) {
-                let cell = this.cellAtPosition(x, y);
-                if (!cell)
-                    continue;
+            for (let x = p1.x; x <= p2.x; x++) {
+                for (let y = p1.y; y <= p2.y; y++) {
+                    // 如果没有单元格，我们需要创建它
+                    let c = this.cellAtPosition(x, y, true);
+                    if (c.indexOf(collider) == -1)
+                        c.push(collider);
+                }
+            }
+        }
 
-                // 当cell不为空。循环并取回所有碰撞器
-                for (let i = 0; i < cell.length; i++) {
-                    let collider = cell[i];
+        /**
+         * 从SpatialHash中删除对象
+         * @param collider
+         */
+        public remove(collider: Collider) {
+            let bounds = collider.registeredPhysicsBounds;
+            let p1 = this.cellCoords(bounds.x, bounds.y);
+            let p2 = this.cellCoords(bounds.right, bounds.bottom);
 
-                    // 如果它是自身或者如果它不匹配我们的层掩码 跳过这个碰撞器
-                    if (collider == excludeCollider || !Flags.isFlagSet(layerMask, collider.physicsLayer))
+            for (let x = p1.x; x <= p2.x; x++) {
+                for (let y = p1.y; y <= p2.y; y++) {
+                    // 单元格应该始终存在，因为这个碰撞器应该在所有查询的单元格中
+                    let cell = this.cellAtPosition(x, y);
+                    if (!cell)
+                        console.error(`removing Collider [${collider}] from a cell that it is not present in`);
+                    else
+                        cell.remove(collider);
+                }
+            }
+        }
+
+        /**
+         * 使用蛮力方法从SpatialHash中删除对象
+         * @param obj
+         */
+        public removeWithBruteForce(obj: Collider){
+            this._cellDict.remove(obj);
+        }
+
+        public clear(){
+            this._cellDict.clear();
+        }
+
+        /**
+         * debug绘制空间散列的内容
+         * @param secondsToDisplay
+         * @param textScale
+         */
+        public debugDraw(secondsToDisplay: number, textScale: number = 1){
+            for (let x = this.gridBounds.x; x <= this.gridBounds.right; x ++){
+                for (let y = this.gridBounds.y; y <= this.gridBounds.bottom; y ++){
+                    let cell = this.cellAtPosition(x, y);
+                    if (cell && cell.length > 0)
+                        this.debugDrawCellDetails(x, y, cell.length, secondsToDisplay, textScale);
+                }
+            }
+        }
+
+        private debugDrawCellDetails(x: number, y: number, cellCount: number, secondsToDisplay = 0.5, textScale = 1){
+
+        }
+
+        /**
+         * 返回边框与单元格相交的所有对象
+         * @param bounds
+         * @param excludeCollider
+         * @param layerMask
+         */
+        public aabbBroadphase(bounds: Rectangle, excludeCollider: Collider, layerMask: number) {
+            this._tempHashSet.length = 0;
+
+            let p1 = this.cellCoords(bounds.x, bounds.y);
+            let p2 = this.cellCoords(bounds.right, bounds.bottom);
+
+            for (let x = p1.x; x <= p2.x; x++) {
+                for (let y = p1.y; y <= p2.y; y++) {
+                    let cell = this.cellAtPosition(x, y);
+                    if (!cell)
                         continue;
 
-                    if (bounds.intersects(collider.bounds)){
-                        if (this._tempHashSet.indexOf(collider) == -1)
-                            this._tempHashSet.push(collider);
+                    // 当cell不为空。循环并取回所有碰撞器
+                    for (let i = 0; i < cell.length; i++) {
+                        let collider = cell[i];
+
+                        // 如果它是自身或者如果它不匹配我们的层掩码 跳过这个碰撞器
+                        if (collider == excludeCollider || !Flags.isFlagSet(layerMask, collider.physicsLayer))
+                            continue;
+
+                        if (bounds.intersects(collider.bounds)){
+                            if (this._tempHashSet.indexOf(collider) == -1)
+                                this._tempHashSet.push(collider);
+                        }
                     }
                 }
             }
+
+            return {tempHashSet: this._tempHashSet, bounds: bounds};
         }
 
-        return {tempHashSet: this._tempHashSet, bounds: bounds};
-    }
+        /**
+         * 获取位于指定圆内的所有碰撞器
+         * @param circleCenter
+         * @param radius
+         * @param results
+         * @param layerMask
+         */
+        public overlapCircle(circleCenter: Vector2, radius: number, results: Collider[], layerMask) {
+            let bounds = new Rectangle(circleCenter.x - radius, circleCenter.y - radius, radius * 2, radius * 2);
 
-    /**
-     * 获取世界空间x,y值的单元格。
-     * 如果单元格为空且createCellIfEmpty为true，则会创建一个新的单元格
-     * @param x 
-     * @param y 
-     * @param createCellIfEmpty 
-     */
-    private cellAtPosition(x: number, y: number, createCellIfEmpty: boolean = false) {
-        let cell: Collider[] = this._cellDict.tryGetValue(x, y);
-        if (!cell) {
-            if (createCellIfEmpty) {
-                cell = [];
-                this._cellDict.add(x, y, cell);
+            this._overlapTestCircle.radius = radius;
+            this._overlapTestCircle.position = circleCenter;
+
+            let resultCounter = 0;
+            let aabbBroadphaseResult = this.aabbBroadphase(bounds, null, layerMask);
+            bounds = aabbBroadphaseResult.bounds;
+            let potentials = aabbBroadphaseResult.tempHashSet;
+            for (let i = 0; i < potentials.length; i++) {
+                let collider = potentials[i];
+                if (collider instanceof BoxCollider) {
+                    results[resultCounter] = collider;
+                    resultCounter++;
+                } else if (collider instanceof CircleCollider) {
+                    if (collider.shape.overlaps(this._overlapTestCircle)){
+                        results[resultCounter] = collider;
+                        resultCounter ++;
+                    }
+                } else if(collider instanceof PolygonCollider) {
+                    if (collider.shape.overlaps(this._overlapTestCircle)){
+                        results[resultCounter] = collider;
+                        resultCounter ++;
+                    }
+                } else {
+                    throw new Error("overlapCircle against this collider type is not implemented!");
+                }
+
+                // 如果我们所有的结果数据有了则返回
+                if (resultCounter == results.length)
+                    return resultCounter;
             }
-        }
-        return cell;
-    }
 
-    /**
-     * 获取单元格的x,y值作为世界空间的x,y值
-     * @param x 
-     * @param y 
-     */
-    private cellCoords(x: number, y: number): Vector2 {
-        return new Vector2(Math.floor(x * this._inverseCellSize), Math.floor(y * this._inverseCellSize));
-    }
-
-    /**
-     * debug绘制空间散列的内容
-     * @param secondsToDisplay 
-     * @param textScale 
-     */
-    public debugDraw(secondsToDisplay: number, textScale: number = 1){
-        for (let x = this.gridBounds.x; x <= this.gridBounds.right; x ++){
-            for (let y = this.gridBounds.y; y <= this.gridBounds.bottom; y ++){
-                let cell = this.cellAtPosition(x, y);
-                if (cell && cell.length > 0)
-                    this.debugDrawCellDetails(x, y, cell.length, secondsToDisplay, textScale);
-            }
+            return resultCounter;
         }
     }
 
-    private debugDrawCellDetails(x: number, y: number, cellCount: number, secondsToDisplay = 0.5, textScale = 1){
-        
+    /**
+     * 包装一个Unit32，列表碰撞器字典
+     * 它的主要目的是将int、int x、y坐标散列到单个Uint32键中，使用O(1)查找。
+     */
+    export class NumberDictionary {
+        public _store: Map<string, Collider[]> = new Map<string, Collider[]>();
+
+        /**
+         * 根据x和y值计算并返回散列键
+         * @param x
+         * @param y
+         */
+        private getKey(x: number, y: number): string {
+            return Long.fromNumber(x).shiftLeft(32).or(Long.fromNumber(y, false)).toString();
+        }
+
+        public add(x: number, y: number, list: Collider[]) {
+            this._store.set(this.getKey(x, y), list);
+        }
+
+        /**
+         * 使用蛮力方法从字典存储列表中移除碰撞器
+         * @param obj
+         */
+        public remove(obj: Collider) {
+            this._store.forEach(list => {
+                if (list.contains(obj))
+                    list.remove(obj);
+            })
+        }
+
+        public tryGetValue(x: number, y: number): Collider[] {
+            return this._store.get(this.getKey(x, y));
+        }
+
+        /**
+         * 清除字典数据
+         */
+        public clear() {
+            this._store.clear();
+        }
+    }
+
+    export class RaycastResultParser {
+
     }
 }
-
-class RaycastResultParser {
-
-}
-
-/**
- * 包装一个Unit32，列表碰撞器字典
- * 它的主要目的是将int、int x、y坐标散列到单个Uint32键中，使用O(1)查找。
- */
-class NumberDictionary {
-    private _store: Map<string, Collider[]> = new Map<string, Collider[]>();
-
-    /**
-     * 根据x和y值计算并返回散列键
-     * @param x 
-     * @param y 
-     */
-    private getKey(x: number, y: number): string {
-        return Long.fromNumber(x).shiftLeft(32).or(Long.fromNumber(y, false)).toString();
-    }
-
-    public add(x: number, y: number, list: Collider[]) {
-        this._store.set(this.getKey(x, y), list);
-    }
-
-    /**
-     * 使用蛮力方法从字典存储列表中移除碰撞器
-     * @param obj 
-     */
-    public remove(obj: Collider) {
-        this._store.forEach(list => {
-            if (list.contains(obj))
-                list.remove(obj);
-        })
-    }
-
-    public tryGetValue(x: number, y: number): Collider[] {
-        return this._store.get(this.getKey(x, y));
-    }
-
-    /**
-     * 清除字典数据
-     */
-    public clear() {
-        this._store.clear();
-    }
-}