碰撞、子弹路径、参考

/*** @description 一些和显示相关的函数放到这里* @author (pdh)* @date 2020-11-05* @class ShowUtil*/
class ShowUtil {private static instance: ShowUtil = null;private hurtColorFilter = null;private shadowColorFilter = null;private shadeColors: number[] = [];private shadeMap: {} = {};private constructor() {}public static getInstance() {if (!this.instance) {this.instance = new ShowUtil();}return this.instance;}/*** @description 沿着中心翻转* @author (pdh)* @date 2020-11-05* @param {egret.DisplayObject} entity* @param {boolean} [flipX=false]* @param {boolean} [flipY=false]* @memberof ShowUtil*/public centerFlip(entity: egret.DisplayObject, flipX: boolean = false, flipY: boolean = false): void {if (!entity) {return;}if (entity.anchorOffsetX === 0 && flipX) {let offsetX = entity.width / 2.0;entity.anchorOffsetX = offsetX;entity.x += offsetX;}if (flipX) {entity.scaleX = entity.scaleX * (-1);}if (entity.anchorOffsetY === 0 && flipY) {let offsetY = entity.height / 2.0;entity.anchorOffsetY = offsetY;entity.y += offsetY;}if (flipY) {entity.scaleY = entity.scaleY * (-1);}}/*** @description 更改锚点。更改后图标显示不移位，仍然按照原来位置显示，只是锚点更改了。* @author (pdh)* @date 2020-11-06* @param {egret.DisplayObject} entity* @param {number} anchorX* @param {number} anchorY* @memberof ShowUtil*/public setAnchor(entity: egret.DisplayObject, anchorX: number, anchorY: number): void {let oldAnchorX = entity.anchorOffsetX;let oldAnchorY = entity.anchorOffsetY;entity.anchorOffsetX = anchorX;entity.anchorOffsetY = anchorY;entity.x += (anchorX - oldAnchorX);entity.y += (anchorY - oldAnchorY);}/*** @description 角度转弧度* @author (pdh)* @date 2020-11-09* @param {number} angle* @returns {number}* @memberof ShowUtil*/public angle2radian(angle: number): number {return angle * Math.PI / 180;}/*** @description 弧度转角度* @author (pdh)* @date 2020-11-09* @param {number} radian* @returns {number}* @memberof ShowUtil*/public radian2angle(radian: number): number {let angle = radian * 180 / Math.PI; //弧度转角度，方便调试return angle;}/*** @description 将坐标控制在0~360度之间* @author (pdh)* @date 2020-11-09* @private* @param {number} angle* @returns {number}* @memberof ShowUtil*/public getRealAngle(angle: number): number {let shang = parseInt(String(angle / 360));angle = angle - shang * 360;if (angle > 360) {angle -= 360;} else if (angle < 0) {angle += 360;}return angle;}/*** @description 两条线段是否相交。如果有相交点放在{@resultPoint}中返回。*              只有return为true时，{@resultPoint}才有意义。* @author (pdh)* @date 2020-11-08* @param {egret.Point} line1Start 线段1的起点* @param {egret.Point} line1End 线段1的终点* @param {egret.Point} line2Start 线段2的起点* @param {egret.Point} line2End 线段2的终点* @param {egret.Point} resultPoint  相交点* @returns {boolean}  是否相交* @memberof ShowUtil*/public crashLine(line1Start: egret.Point,line1End: egret.Point,line2Start: egret.Point,line2End: egret.Point,resultPoint: egret.Point): boolean {let pt = resultPoint;// line1's cpmponent  let x1 = line1End.x - line1Start.x;//b1  let y1 = line1End.y - line1Start.y;//a1  // line2's cpmponent  let x2 = line2End.x - line2Start.x;//b2  let y2 = line2End.y - line2Start.y;//a2  // distance of 1,2  let x21 = line2Start.x - line1Start.x;let y21 = line2Start.y - line1Start.y;// determinant  let D = y1 * x2 - y2 * x1;// a1b2-a2b1  //   if (0 != D) {// cross point  pt.x = (x1 * x2 * y21 + y1 * x2 * line1Start.x - y2 * x1 * line2Start.x) / D;// on screen y is down increased !   pt.y = -(y1 * y2 * x21 + x1 * y2 * line1Start.y - x2 * y1 * line2Start.y) / D;// segments intersect.  if ((Math.abs(pt.x - line1Start.x - x1 / 2) <= Math.abs(x1 / 2)) &&(Math.abs(pt.y - line1Start.y - y1 / 2) <= Math.abs(y1 / 2)) &&(Math.abs(pt.x - line2Start.x - x2 / 2) <= Math.abs(x2 / 2)) &&(Math.abs(pt.y - line2Start.y - y2 / 2) <= Math.abs(y2 / 2))) {return true;}}return false;}/*** @description 计算夹角，沿X轴正向为0，逆时针增大* @author (pdh)* @date 2020-11-06* @param {number} fromX* @param {number} fromY* @param {number} toX* @param {number} toY* @returns * @memberof ShowUtil*/public getAngle(fromX: number, fromY: number, toX: number, toY: number) {let x = toX - fromX;let y = toY - fromY;//egret中左上角为原点，要做一下转换let radian = Math.atan2(y, x);let angle = this.radian2angle(radian); //弧度转角度，方便调试angle = this.getRealAngle(angle);return angle;}/*** @description 以baseX、baseY为原点，旋转rotateAngle的角度，获得beforeX、beforeY旋转后的新坐标* @author (pdh)* @date 2020-12-20* @param {number} baseX* @param {number} baseY* @param {number} beforeX* @param {number} beforeY* @param {number} rotateAngle* @param {egret.Point} resultPos* @returns {egret.Point}* @memberof ShowUtil*/public rotateByBasePoint(baseX: number, baseY: number,beforeX: number, beforeY: number,rotateAngle: number,resultPos: egret.Point): egret.Point {let baseP: egret.Point = ObjectPool.pop(ObjectType.Point);baseP.setTo(baseX, baseY);let beforeP: egret.Point = ObjectPool.pop(ObjectType.Point);beforeP.setTo(beforeX, beforeY);let distance = egret.Point.distance(beforeP, baseP);let beforeAngle = this.getAngle(baseX, baseY, beforeX, beforeY);let afterAngle = this.getRealAngle(beforeAngle + rotateAngle);let radian = this.angle2radian(afterAngle);resultPos.x = Math.cos(radian) * distance + baseX;resultPos.y = Math.sin(radian) * distance + baseY;ObjectPool.push(baseP);ObjectPool.push(beforeP);return resultPos;}/*** @description 炮弹射程1500就够了* @author (pdh)* @date 2020-11-08* @static* @returns {number}* @memberof ShowUtil*/public getMaxDistance(): number {let w = GDatas.getStageWidth();let h = GDatas.getStageHeight();let distance = Math.sqrt(w * w + h * h);return distance + 100;}/*** @description 判断点是否落在矩形内。 注意注意：矩形顶角坐标传入次序不要搞错* @author (pdh)* @date 2020-12-20* @param {egret.Point} checkPoint  要检测的点* @param {egret.Point} rectLT        左上角* @param {egret.Point} rectRT       右上角* @param {egret.Point} rectRB       右下角* @param {egret.Point} rectLB       左下角* @returns {boolean}* @memberof ShowUtil*/public isPointInRect(checkPoint: egret.Point, rectLT: egret.Point, rectRT: egret.Point, rectRB: egret.Point, rectLB: egret.Point): boolean {let isIn = false;let dot: egret.Point = ObjectPool.pop(ObjectType.Point);dot.setTo(checkPoint.x, checkPoint.y);let lt: egret.Point = ObjectPool.pop(ObjectType.Point);lt.setTo(rectLT.x, rectLT.y);let rt: egret.Point = ObjectPool.pop(ObjectType.Point);rt.setTo(rectRT.x, rectRT.y);let rb: egret.Point = ObjectPool.pop(ObjectType.Point);rb.setTo(rectRB.x, rectRB.y);let lb: egret.Point = ObjectPool.pop(ObjectType.Point);lb.setTo(rectLB.x, rectLB.y);let angle = this.getAngle(lt.x, lt.y, rt.x, rt.y);//以左上角lt为原点，将要判断的各个点转换为正常坐标系this.rotateByBasePoint(lt.x, lt.y, rt.x, rt.y, -angle, rt);this.rotateByBasePoint(lt.x, lt.y, rb.x, rb.y, -angle, rb);this.rotateByBasePoint(lt.x, lt.y, lb.x, lb.y, -angle, lb);this.rotateByBasePoint(lt.x, lt.y, dot.x, dot.y, -angle, dot);let x = lt.x < rb.x ? lt.x : rb.x;let y = lt.y < rb.y ? lt.y : rb.y;let width = Math.abs(rb.x - lt.x);let height = Math.abs(rb.y - lt.y);if ((dot.x >= x && dot.x < (x + width))&& (dot.y >= y && dot.y < (y + height))) {isIn = true;}ObjectPool.push(lt);ObjectPool.push(rt);ObjectPool.push(rb);ObjectPool.push(lb);ObjectPool.push(dot);return isIn;}/*** @description 检测闭合的两个多边形是否碰撞。注意注意：只判断边线相交，不判断两个entity互相包含的情况*                   判断entity互相包含，请参考{@link ShowUtils.isPointInRect}* @author (pdh)* @date 2020-11-14* @param {egret.Point[]} srcShape* @param {egret.Point[]} dstShape* @returns {boolean}* @memberof ShowUtil*/public crashEdges(srcShape: egret.Point[], dstShape: egret.Point[]): boolean {let isCrash: boolean = false;let START = "start";let END = "end";let srcLines = [];for (let sIndex = 0; sIndex < srcShape.length; sIndex++) {let srcStart = srcShape[sIndex];let srcEnd = srcShape[0];if ((srcShape.length - 1) != sIndex) {srcEnd = srcShape[sIndex + 1];}srcLines.push({ [START]: srcStart, [END]: srcEnd });}for (let dIndex = 0; dIndex < dstShape.length; dIndex++) {let dstStart = dstShape[dIndex];let dstEnd = dstShape[0];if ((dstShape.length - 1) != dIndex) {dstEnd = dstShape[dIndex + 1];}for (let line of srcLines) {let srcStart = line[START];let srcEnd = line[END];let resultPoint: egret.Point = ObjectPool.pop(ObjectType.Point);resultPoint.setTo(0, 0);isCrash = this.crashLine(srcStart, srcEnd, dstStart, dstEnd, resultPoint);ObjectPool.push(resultPoint);if (isCrash) {return true;}}}return isCrash;}/*** @description 判断两个矩形是否相撞* @author (pdh)* @date 2020-12-21* @param {egret.Point} srcStageLT* @param {egret.Point} srcStageRT* @param {egret.Point} srcStageRB* @param {egret.Point} srcStageLB* @param {egret.Point} dstStageLT* @param {egret.Point} dstStageRT* @param {egret.Point} dstStageRB* @param {egret.Point} dstStageLB* @returns {boolean}* @memberof ShowUtil*/public crashRect(srcStageLT: egret.Point,srcStageRT: egret.Point,srcStageRB: egret.Point,srcStageLB: egret.Point,dstStageLT: egret.Point,dstStageRT: egret.Point,dstStageRB: egret.Point,dstStageLB: egret.Point,isExact: boolean = false): boolean {let isCrash: boolean = false;let srcPoints: egret.Point[] = [srcStageLB, srcStageRB, srcStageRT, srcStageLT];let diameterDst: number = Math.abs(egret.Point.distance(dstStageLB, dstStageRT));let diameterSrc: number = Math.abs(egret.Point.distance(srcStageLB, srcStageRT));//两个对象间任意两点间的距离都可以let distance: number = Math.abs(egret.Point.distance(srcStageLB, dstStageLB));if (distance <= (diameterDst + diameterSrc)) {//两物体间距小于对角线长度之和，则要检测是否碰撞let dstPoints: egret.Point[] = [dstStageLB, dstStageRB, dstStageRT, dstStageLT];isCrash = ShowUtil.getInstance().crashEdges(srcPoints, dstPoints);if (isExact && !isCrash) {//TODO: pdh 太耗费性能，部分手机FPS掉到7帧，先屏蔽// 检测一个物体将另一个物体完全包住，各条边都没有碰撞的情况let srcArea = Math.abs((srcStageRB.x - srcStageLT.x) * (srcStageRB.y - srcStageLT.y));let dstArea = Math.abs((dstStageRB.x - dstStageLT.x) * (dstStageRB.y - dstStageLT.y));if (dstArea >= srcArea) {for (let point of srcPoints) {if (this.isPointInRect(point, dstStageLT, dstStageRT, dstStageRB, dstStageLB)) {isCrash = true;break;}}} else {for (let point of dstPoints) {if (this.isPointInRect(point, srcStageLT, srcStageRT, srcStageRB, srcStageLB)) {isCrash = true;break;}}}}}return isCrash;}/*** @description 检查两个IQuickCheckCrash是否碰撞，请确保前面调用过 CrashObject.refreshPositions();* @author (pdh)* @date 2020-12-21* @param {IQuickCheckCrash} srcEntity* @param {IQuickCheckCrash} dstEntity* @param {boolean} [isExact=true] 是否精确检查* @returns {boolean}* @memberof ShowUtil*/public checkCrashObject(srcEntity: IQuickCheckCrash, dstEntity: IQuickCheckCrash, isExact = true): boolean {let srcLT = srcEntity.stageCrashLeftTop;let srcRT = srcEntity.stageCrashRightTop;let srcRB = srcEntity.stageCrashRightBottom;let srcLB = srcEntity.stageCrashLeftBottom;let dstLT = dstEntity.stageCrashLeftTop;let dstRT = dstEntity.stageCrashRightTop;let dstRB = dstEntity.stageCrashRightBottom;let dstLB = dstEntity.stageCrashLeftBottom;let isCrash: boolean = this.crashRect(srcLT, srcRT, srcRB, srcLB, dstLT, dstRT, dstRB, dstLB, isExact);return isCrash;}/*** @description 检查两个物体是否相撞，或者互相包含* @author (pdh)* @date 2020-11-22* @param {egret.DisplayObject} objSrc* @param {egret.DisplayObject} objDst* @param {boolean} isExact 是否精确检测. 精确检测更费时间* @returns {boolean}* @memberof ShowUtil*/public checkCrashDisplayObject(objSrc: egret.DisplayObject, objDst: egret.DisplayObject, isExact: boolean = false): boolean {let isCrash = false;let srcLB: egret.Point = ObjectPool.pop(ObjectType.Point);//左下角let srcRB: egret.Point = ObjectPool.pop(ObjectType.Point);//右下角let srcRT: egret.Point = ObjectPool.pop(ObjectType.Point);//右上角let srcLT: egret.Point = ObjectPool.pop(ObjectType.Point);//左上角let dstLB: egret.Point = ObjectPool.pop(ObjectType.Point);let dstRB: egret.Point = ObjectPool.pop(ObjectType.Point);let dstRT: egret.Point = ObjectPool.pop(ObjectType.Point);let dstLT: egret.Point = ObjectPool.pop(ObjectType.Point);let srcW = objSrc.width;let srctH = objSrc.height;objSrc.localToGlobal(0, srctH, srcLB);objSrc.localToGlobal(srcW, srctH, srcRB);objSrc.localToGlobal(srcW, 0, srcRT);objSrc.localToGlobal(0, 0, srcLT);let dstW = objDst.width;let dstH = objDst.height;objDst.localToGlobal(0, dstH, dstLB);objDst.localToGlobal(dstW, dstH, dstRB);objDst.localToGlobal(dstW, 0, dstRT);objDst.localToGlobal(0, 0, dstLT);isCrash = this.crashRect(srcLT, srcRT, srcRB, srcLB, dstLT, dstRT, dstRB, dstLB, isExact);ObjectPool.push(dstLB);ObjectPool.push(dstRB);ObjectPool.push(dstRT);ObjectPool.push(dstLT);ObjectPool.push(srcLB);ObjectPool.push(srcRB);ObjectPool.push(srcRT);ObjectPool.push(srcLT);return isCrash;}/*** @description 判断一个物品是否在另一个物品内部* @author (pdh) * @date 2020-05-24* @param {CrashObject} srcEntity* @param {CrashObject} dstEntity* @returns {boolean}* @memberof ShowUtil*/public checkSrcInDst(srcEntity: CrashObject, dstEntity: CrashObject): boolean {let dstLT = dstEntity.stageCrashLeftTop;let dstRT = dstEntity.stageCrashRightTop;let dstRB = dstEntity.stageCrashRightBottom;let dstLB = dstEntity.stageCrashLeftBottom;let srcPoints: egret.Point[] = [srcEntity.stageCrashLeftTop,srcEntity.stageCrashRightTop,srcEntity.stageCrashRightBottom,srcEntity.stageCrashLeftBottom];let isIn: boolean = true;for (let point of srcPoints) {if (!this.isPointInRect(point, dstLT, dstRT, dstRB, dstLB)) {isIn = false;break;}}return isIn;}/*** @description 判断一个矩形是否在另一个矩形内部* @author (pdh)* @date 2020-05-24* @param {egret.Point} srcLT* @param {egret.Point} srcRT* @param {egret.Point} srcRB* @param {egret.Point} srcLB* @param {egret.Point} dstLT* @param {egret.Point} dstRT* @param {egret.Point} dstRB* @param {egret.Point} dstLB* @returns {boolean}* @memberof ShowUtil*/public checkRectInRect(srcLT: egret.Point, srcRT: egret.Point,srcRB: egret.Point, srcLB: egret.Point,dstLT: egret.Point, dstRT: egret.Point,dstRB: egret.Point, dstLB: egret.Point): boolean {let srcPoints: egret.Point[] = [srcLT, srcRT, srcRB, srcLB];let isIn: boolean = true;for (let point of srcPoints) {if (!this.isPointInRect(point, dstLT, dstRT, dstRB, dstLB)) {isIn = false;break;}}return isIn;}/*** @description 鱼被打中就涂红色* @author (pdh)* @date 2020-02-12* @returns * @memberof HurtComponent*/public getHurtColor() {if (!this.hurtColorFilter) {let color: number = 0xff0000;let spliceColor = (color) => {let result = { r: -1, g: -1, b: -1 };result.b = color % 256;result.g = Math.floor((color / 256)) % 256;result.r = Math.floor((color / 256) / 256);return result;}let result = spliceColor(color);let colorMatrix = [1, 0, 0, 0, 0,0, 1, 0, 0, 0,0, 0, 1, 0, 0,0, 0, 0, 0.5, 0];colorMatrix[0] = result.r / 255;colorMatrix[6] = result.g / 255;colorMatrix[12] = result.b / 255;this.hurtColorFilter = [];let filter = new egret.ColorMatrixFilter(colorMatrix);this.hurtColorFilter.push(filter);}return this.hurtColorFilter;}/*** @description 黑色影子* @author (pdh)* @date 2020-03-04* @returns * @memberof ShowUtil*/public getShadowColor() {if (!this.shadowColorFilter) {let color: number = 0x000001;let spliceColor = (color) => {let result = { r: -1, g: -1, b: -1 };result.b = color % 256;result.g = Math.floor((color / 256)) % 256;result.r = Math.floor((color / 256) / 256);return result;}let result = spliceColor(color);let colorMatrix = [1, 0, 0, 0, 0,0, 1, 0, 0, 0,0, 0, 1, 0, 0,0, 0, 0, 1, 0];colorMatrix[0] = result.r / 255;colorMatrix[6] = result.g / 255;colorMatrix[12] = result.b / 255;colorMatrix[18] = 0.3;this.shadowColorFilter = [];let filter = new egret.ColorMatrixFilter(colorMatrix);this.shadowColorFilter.push(filter);}return this.shadowColorFilter;}public getRedFilter() {return [new egret.GlowFilter(0xFF0000, 1, 1, 1, 6, 1, false, false)];}/*** @description 颜色渲染* @author (pdh)* @date 2020-03-04* @returns * @memberof ShowUtil*/public getShadeColor(aColor: number, force: boolean = false) {if (aColor === undefined) {return undefined;} else if (!aColor) {aColor = 0;}if (this.shadeColors.length <= 0) {let interval = 0xff / 10;let b = 0x00;while (b < 0xff) {this.shadeColors.push(b);b += interval;}let g = 0x00;while (g < 0xff) {this.shadeColors.push(g << 8);g += interval;}let r = 0x00;while (r < 0xff) {this.shadeColors.push(r << 16);r += interval;}this.shadeColors.push(0xffffff);}let nearColor = this.shadeColors[0];if (!force) {for (let i = 1; i < this.shadeColors.length; i++) {let c = this.shadeColors[i];if (aColor <= 0xff && c > 0xff) {continue;} else if (aColor > 0xff && aColor <= 0x00ff00 && (c < 0xff || c > 0X00FF00)) {continue;} else if (aColor > 0x00ff00 && c <= 0x00ff00) {continue;}let now = Math.abs(c - aColor);let last = Math.abs(nearColor - aColor);if (now < last) {nearColor = c;}}} else {nearColor = aColor;}let shade = this.shadeMap[nearColor];if (!shade) {let color: number = nearColor;let spliceColor = (color) => {let result = { r: -1, g: -1, b: -1 };result.b = color % 256;result.g = Math.floor((color / 256)) % 256;result.r = Math.floor((color / 256) / 256);return result;}let result = spliceColor(color);let colorMatrix = [1, 0, 0, 0, 0,0, 1, 0, 0, 0,0, 0, 1, 0, 0,0, 0, 0, 1, 0];colorMatrix[0] = result.r / 255;colorMatrix[6] = result.g / 255;colorMatrix[12] = result.b / 255;colorMatrix[18] = 0.7;shade = [];let filter = new egret.ColorMatrixFilter(colorMatrix);shade.push(filter);}return shade;}}

参考播放动画

/*** @description 只管绘制身体，其实是帧动画* @author (pdh)* @date 2020-10-31* @class AnimComponent* @extends {Component}*/
class AnimComponent extends Component {private _container: egret.DisplayObjectContainer;private mc: FSDefaultMovieClip;// private mcMap: { [key: string]: DefaultMovieClip };private property: AAnimEntityProperty;private adjustAnchor: boolean = false;//锚点设置在中心点private debugMc: boolean = false;//调试mcpublic constructor() {super();}public start(): void {super.start();this.property = <AAnimEntityProperty>(this.entity.property);this.mc = ObjectPool.pop(ObjectType.FSDefaultMovieClip);this.mc.setCompleteAction(this.completeAction, this);this._container = ObjectPool.pop(ObjectType.DisplayObjectContainer);this._container.x = 0;this._container.y = 0;this._container.anchorOffsetX = 0;this._container.anchorOffsetY = 0;this._container.removeChildren();this._container.addChild(this.mc);this.entity.addChild(this._container);this.startLoad();}public stop(): void {if (this._container) {this._container.x = 0;this._container.y = 0;this._container.anchorOffsetX = 0;this._container.anchorOffsetY = 0;App.DisplayUtils.removeFromParent(this._container);this._container.removeChildren();ObjectPool.push(this._container);this._container = null;}if (this.mc) {this.mc.destroy();this.mc = null;}this.adjustAnchor = false;super.stop();}public update(advancedTime: number): void {super.update(advancedTime);if (this.property.curAction !== this.mc.getCurrAction()) {this.mc.gotoAction(this.property.curAction, 1);} else {this.mc.runAction(advancedTime);}//NOTE: 销毁的时候 this.entity === null还会往下跑if (this.entity) {let containerX: number = this._container.x;let containerY: number = this._container.y;let containerAnchorX: number = this._container.anchorOffsetX;let containerAnchorY: number = this._container.anchorOffsetY;let nWidth: number = containerX - containerAnchorX + this.mc.x + this.mc.width;let nHeight: number = containerY - containerAnchorY + this.mc.y + this.mc.height;if (nWidth > 0) {this.entity.width = nWidth;}if (nHeight > 0) {this.entity.height = nHeight;}//至少要播放一帧动画后才能得到entity的有效尺寸，获得有效尺寸后才能设置锚点if (!this.adjustAnchor || this.property.anchorCenter) {let container = this._container;ShowUtil.getInstance().setAnchor(container, container.width / 2, container.height / 2);// let entity = this.entity;// ShowUtil.getInstance().setAnchor(entity, entity.width / 2, entity.height / 2);let width = this.entity.width;let height = this.entity.height;this.entity.anchorOffsetX = width / 2;this.entity.anchorOffsetY = height / 2;this.adjustAnchor = true;// egret.log("anchorX = ", this._container.anchorOffsetX, ", anchorY = ", this._container.anchorOffsetY, ", wid = ", container.width, ", height = ", container.height);}this.entity.drawDebugShape();}}/*** @description 一个动作播放完毕后，要么重复播放，要么就销毁* @author (pdh)* @date 2019-01-17* @private* @memberof AnimComponent*/private completeAction(): void {if (this.property.eActionType === EActionType.destroyAfterOnce) {//NOTE: pdh 注意，销毁的entity回收要这样写，//否则在调用destroy——>components.stop函数时会将 this.entity置为null导致无法回收ObjectPool.pushAndDestroy(this.entity);} else if (this.property.eActionType === EActionType.onceCallBack) {if (this.property.completeCallback) {this.property.completeCallback();// this.mc.gotoAction(this.property.curAction, 1);} else {this.property.curAction = ResActionDefine.normal;this.property.eActionType = EActionType.forever;this.mc.setCurrAction(null);// this.mc.gotoAction(this.property.curAction, 1);}} else {//NOTE: 正常应该是鱼被击中播放受伤动画，然后在这里转成normal动画.//但是现在受伤动作用红边代替，那就不用切换动画this.mc.gotoAction(this.property.curAction, 1);}}/*** @description 为了碰撞检测更准确，鱼的碰撞会用mc来做检测* @author (pdh)* @date 2019-01-17* @returns {DefaultMovieClip}* @memberof AnimComponent*/public getMc(): FSDefaultMovieClip {return this.mc;}/*** @description 客户提出鱼要一遍沿路径游动，一边有节奏地摇晃，增加一个用于摇晃的container* @author (pdh)* @date 2019-02-12* @returns {egret.DisplayObjectContainer}* @memberof AnimComponent*/public getContainer(): egret.DisplayObjectContainer {return this._container;}private startLoad(): void {this.isRuning = true;this.onLoadComplate();}private onLoadComplate(): void {if (!this.isRuning) {return;}let anim: string = this.property.animPrefix;let mcName: string = this.property.mcName;let mcData: egret.MovieClipData = McDataCaches.getInstance().getMcData(anim, mcName);this.mc.setMcData(mcData);this.mc.$animSpeedScale = this.property.animSpeedScale * 30 / 24;}
}

计算子弹路径

/*** @description 当前坐标及朝向* @author (pdh)* @date 2020-11-09* @class FlyPoint*/
class FlyPoint implements IReset {public x: number = 0;public y: number = 0;public angle: number = 0;public milliSecond: number = 0;//飞到该点所耗费时间public point: egret.Point = new egret.Point();public constructor() {}public init(x: number = 0, y: number = 0, angle: number = 0, milliSecond: number = 0) {this.x = x;this.y = y;this.angle = angle;this.milliSecond = milliSecond;}public getXY(): egret.Point {this.point.setTo(this.x, this.y);return this.point;}public reset() {this.x = 0;this.y = 0;this.angle = 0;this.milliSecond = 0;this.point.setTo(0, 0);}
}/*** @description 炮弹飞行，边飞行边检查碰撞* @author (pdh)* @date 2020-11-07* @class BulletFlyComponent* @extends {Component}*/
class BulletFlyComponent extends Component {private _bullet: BulletEntity;private _property: BulletProp;private _tween: egret.Tween = null;private _MAX_DISTANCE: number = 1500;//子弹射一条直线最长距离//存放子弹路径private _flyPoints: FlyPoint[];public constructor() {super();}public start(): void {super.start();this._bullet = <BulletEntity>this.entity;this._property = this._bullet.getProperty();this._MAX_DISTANCE = ShowUtil.getInstance().getMaxDistance();//使用瞄准道具的子弹要追踪指定的鱼，在this.trail()中做特殊处理if (this._property.eFireStatus === EFireStatus.TrailFire) {this._bullet.rotation = this.flyToBulletAngle(this._property.angle);} else {this._flyPoints = [];this.calculateBouncePoints(this._property.fromX,this._property.fromY,this._property.angle,this._property.bounceCount,EEdgeID.None,this._MAX_DISTANCE,this._property.tripMilliSec,this._flyPoints);//TODO: pdh可能还是在update中算比较好this._tween = egret.Tween.get(this._bullet);for (let i = 0; i < this._flyPoints.length - 1; i++) {let fromPoint = this._flyPoints[i];let toPoint = this._flyPoints[i + 1];let angle = this.flyToBulletAngle(fromPoint.angle);this._tween.to({ rotation: angle }, 1);this._tween.to({ x: toPoint.x, y: toPoint.y }, toPoint.milliSecond);}this._tween.call(() => {if (this._bullet) {ObjectPool.pushAndDestroy(this._bullet);this._bullet = null;}});}let battery: BatteryEntity = this._bullet.getBattery();// egret.log("BulletFlyComponent battery=", this._property.batteryIndex, ", status = ", this._property.eFireStatus, ", battery.angle=", battery.angle, ", bullet.angle=", this._property.angle, ", trailFish = ", battery.getTrailDynamicId())App.SoundManager.playEffect(ResSoundDefine.s_fire_mp3);let fps = GDatas.getFrameRate();// egret.log("bullet battery id = ", this._property.batteryIndex, ", fireStatus = ", this._property.eFireStatus);// this.dealInterval = 1 / (fps / 2);//两帧检测一次碰撞。否则差手机浏览器上有点卡。}public stop(): void {if (this._flyPoints) {for (let k in this._flyPoints) {let point = this._flyPoints[k];point.reset();ObjectPool.push(point);}this._flyPoints.splice(0, this._flyPoints.length);this._flyPoints = null;}if (this._bullet) {egret.Tween.removeTweens(this._bullet);this._bullet = null;}super.stop();}public update(delta: number): void {super.update(delta);if (this.entity) {let bullet: BulletEntity = <BulletEntity>(this.entity);//note: pdh 新UI不需要缩放// if (bullet.width > 0) {//     bullet.scaleX = 60 / bullet.width;//     bullet.scaleY = bullet.scaleX;// }}this._bullet.refreshPositions();this.trail(delta);this.checkHit();}/*** @description 使用道具的子弹要做特殊处理* @author (pdh)* @date 2020-12-07* @param {number} deltaTime 两帧之间间隔几毫秒* @memberof BulletFlyComponent*/public trail(deltaTime: number) {if (this._property.eFireStatus === EFireStatus.TrailFire) {let fish: FishEntity = null;let battery: BatteryEntity = this._bullet.getBattery();if (battery) {fish = battery.getTrailFish();}if (fish) {let inScreen: boolean = ShowUtil.getInstance().checkCrashObject(fish, this._bullet.gameView.bg, true);if (!inScreen) {//鱼已经不在屏幕内，则忽略fish = null;}}let toX: number = 0;let toY: number = 0;let maxDistance: number = this._MAX_DISTANCE;let interval: number = maxDistance * deltaTime / this._property.tripMilliSec;let angle: number = 0;if (fish) {//追着鱼打angle = ShowUtil.getInstance().getAngle(this._bullet.relativeCrashAnchor.x, this._bullet.relativeCrashAnchor.y, fish.relativeCrashAnchor.x, fish.relativeCrashAnchor.y);this._bullet.rotation = this.flyToBulletAngle(angle);} else {//没有鱼则沿当前子弹方向飞出屏幕angle = this.bulletToFlyAngle();}let radian = ShowUtil.getInstance().angle2radian(angle);toX = Math.cos(radian) * interval + this._bullet.relativeCrashAnchor.x;toY = Math.sin(radian) * interval + this._bullet.relativeCrashAnchor.y;this._bullet.x = toX;this._bullet.y = toY;this._bullet.refreshPositions();}}/*** @description 检测子弹与鱼的碰撞* @author (pdh)* @date 2020-12-07* @returns * @memberof BulletFlyComponent*/public checkHit() {let view = <FSBattleView>App.ViewManager.getView(ViewConst.FishBattle);if (!view || !view.fishLayer) {return;}let inScreen: boolean = ShowUtil.getInstance().checkCrashObject(this._bullet, this._bullet.gameView.bg, true);if (!inScreen) {//子弹飞出屏幕后不再与鱼做碰撞检测ObjectPool.pushAndDestroy(this._bullet);return;}let battery: BatteryEntity = this._bullet.getBattery();if (battery) {let batProp: BatteryProp = battery.getProperty();if (!batProp || batProp.isEmpty) {return;}//炮弹在本炮台范围内，不要检查鱼的碰撞let inCannon = ShowUtil.getInstance().checkCrashObject(this._bullet, battery, true);if (inCannon) {return;}}let fishCount = view.fishLayer.fishs.length;for (let i: number = fishCount - 1; i >= 0; i--) {let fish: FishEntity = view.fishLayer.fishs[i];if (!fish.$isAlive) {continue;}//本子弹已经撞过的鱼就不用检测了if (this._property.eFireStatus === EFireStatus.TrailFire) {let battery: BatteryEntity = this._bullet.getBattery();if (battery) {//使用瞄准追踪道具时，只检测瞄准的鱼是否碰撞let aimId = battery.getTrailDynamicId();let fishPro: FishProp = fish.getProperty();if (fishPro && aimId !== fishPro.dynamicId) {continue;}}}let isCrash: boolean = ShowUtil.getInstance().checkCrashObject(this._bullet, fish);if (isCrash) {let bulletPos: egret.Point = this.entity.stageCrashAnchor;let fishMc: FSDefaultMovieClip = fish.getMc();if (fishMc && bulletPos) {//TODO: pdh 升级引擎版本之后碰撞检测很卡，先屏蔽掉。以后引擎速度快了再恢复// isCrash = fishMc.hitTestPoint(bulletPos.x, bulletPos.y, false);isCrash = fishMc.hitTestPoint(bulletPos.x, bulletPos.y, true);if (isCrash) {fish.hurt(this._bullet);//NOTE: andew 目前策划撞到一只鱼炮弹就爆炸销毁let pBomb: egret.Point = egret.Point.create(0, 0);let pCrash: egret.Point = this._bullet.stageCrashAnchor;fish.getNearestBombPoint(pCrash.x, pCrash.y, pBomb);//发送打中鱼协议let view = <FSBattleView>App.ViewManager.getView(ViewConst.FishBattle);if (view && view.batteryLayer) {let fishIds: number[] = [];fishIds.push(fish.getProperty().dynamicId);let battery = view.batteryLayer.getBattery(this._bullet.getProperty().batteryIndex);if (battery.getProperty().isYou) {FSGameSocket.instance().sendBulletHitFishReq(fishIds, this._bullet.getProperty().clientKey);}fishIds.splice(0, fishIds.length);fishIds = null;}ObjectPool.pushAndDestroy(this._bullet);egret.Point.release(pBomb);break;}}}}}/*** @description 计算子弹路径。放在{@flyPoints}中返回 * @author (pdh)* @date 2020-12-07* @param {number} fromX* @param {number} fromY* @param {number} angle* @param {number} bounceCount* @param {number} fromWhichEdge* @param {number} tripDistance* @param {number} tripMillSec* @param {FlyPoint[]} flyPoints* @returns {FlyPoint[]}* @memberof BulletFlyComponent*/public calculateBouncePoints(fromX: number, fromY: number, angle: number, bounceCount: number, fromWhichEdge: number, tripDistance: number, tripMillSec: number, flyPoints: FlyPoint[]): FlyPoint[] {let MAX_DISTANCE = tripDistance;//炮弹射程let MAX_TIME = tripMillSec;//DefaultDefine.BulletTripMilliSec;//炮弹打完一个射程的时间angle = ShowUtil.getInstance().getRealAngle(angle);let scrW = GDatas.getStageWidth();let scrH = GDatas.getStageHeight();let start = "start";let end = "end";let radian = ShowUtil.getInstance().angle2radian(angle);let toX = Math.cos(radian) * MAX_DISTANCE + fromX;let toY = Math.sin(radian) * MAX_DISTANCE + fromY;let pStart: FlyPoint = ObjectPool.pop(ObjectType.FlyPoint);let pEnd: FlyPoint = ObjectPool.pop(ObjectType.FlyPoint);pStart.reset();pEnd.reset();pStart.init(fromX, fromY, angle, MAX_TIME);pEnd.init(toX, toY, angle, MAX_TIME);//第一个撞击点。炮口发射点也要加到路径中if (0 == flyPoints.length) {flyPoints.push(pStart);}//反弹结束，子弹直接飞出屏幕if (bounceCount <= 0) {flyPoints.push(pEnd);return flyPoints;}//获得屏幕的四条边沿let lbPoint = egret.Point.create(0, scrH);let rbPoint = egret.Point.create(scrW, scrH);let rtPoint = egret.Point.create(scrW, 0);let ltPoint = egret.Point.create(0, 0);let lineBottom = { [start]: lbPoint, [end]: rbPoint };let lineRight = { [start]: rbPoint, [end]: rtPoint };let lineTop = { [start]: rtPoint, [end]: ltPoint };let lineLeft = { [start]: ltPoint, [end]: lbPoint };let screenEdge = [lineBottom, lineRight, lineTop, lineLeft];//检查与哪条边相撞，撞击点在哪里let edgeIndex: EEdgeID = null;let collisionPoint: FlyPoint = null;for (let i = 0; i < screenEdge.length; i++) {//子弹从哪条边发来的，则哪条边就不用检查。 不在screenEdge中的边也不用检查if (fromWhichEdge === i || !screenEdge[i]) {continue;}let edge = screenEdge[i];let point = egret.Point.create(0, 0);let crashed = ShowUtil.getInstance().crashLine(edge[start], edge[end],pStart.getXY(), pEnd.getXY(),point);//相撞了    if (crashed) {edgeIndex = i;collisionPoint = ObjectPool.pop(ObjectType.FlyPoint);collisionPoint.init(point.x, point.y, angle);egret.Point.release(point);break;}egret.Point.release(point);}egret.Point.release(lbPoint);egret.Point.release(rbPoint);egret.Point.release(rtPoint);egret.Point.release(ltPoint);lbPoint = null;rbPoint = null;rtPoint = null;ltPoint = null;//撞到屏幕一条边沿则反弹if (collisionPoint && null != edgeIndex) {switch (edgeIndex) {//撞到底边case EEdgeID.Bottom: {angle = ShowUtil.getInstance().getRealAngle(0 - angle);break;}//撞到右边case EEdgeID.Right: {angle = ShowUtil.getInstance().getRealAngle(180 - angle);break;}//撞到上边case EEdgeID.Top: {angle = ShowUtil.getInstance().getRealAngle(0 - angle);break;}//撞到左边case EEdgeID.Left: {angle = ShowUtil.getInstance().getRealAngle(180 - angle);break;}default: {egret.error("calculateBouncePoints: impossible. edgeIndex = ", edgeIndex);break;}}collisionPoint.angle = angle;collisionPoint.milliSecond = 0;let distance = egret.Point.distance(collisionPoint.getXY(), pStart.getXY());distance = Math.abs(distance);if (distance > 0) {collisionPoint.milliSecond = (distance / MAX_DISTANCE) * MAX_TIME;}flyPoints.push(collisionPoint);bounceCount--;return this.calculateBouncePoints(collisionPoint.x, collisionPoint.y, angle, bounceCount, edgeIndex, MAX_DISTANCE, MAX_TIME, flyPoints);}return flyPoints;}/*** @description 飞行角度与子弹贴图角度有偏差* @author (pdh)* @date 2020-12-07* @private* @returns {number}* @memberof BulletFlyComponent*/private bulletToFlyAngle(): number {let angle = this._bullet.rotation + 270;return ShowUtil.getInstance().getRealAngle(angle);}/*** @description 飞行角度与子弹贴图角度有偏差* @author (pdh)* @date 2020-12-07* @private* @param {number} flyAngle* @returns {number}* @memberof BulletFlyComponent*/private flyToBulletAngle(flyAngle: number): number {return ShowUtil.getInstance().getRealAngle(flyAngle - 270);}
}

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