110 lines
2.7 KiB
TypeScript
110 lines
2.7 KiB
TypeScript
import {
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_decorator,
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Component,
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Vec3,
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RigidBody,
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input,
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Input,
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EventTouch,
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} from "cc";
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import { TrajectoryPreview } from "./TrajectoryPreview";
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const { ccclass, property } = _decorator;
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@ccclass("GameMrg")
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export class GameMrg extends Component {
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@property(RigidBody)
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rigidBody: RigidBody = null!;
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@property(TrajectoryPreview)
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trajectory: TrajectoryPreview = null!;
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@property
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maxPower: number = 25;
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private startPos: Vec3 = new Vec3();
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private endPos: Vec3 = new Vec3();
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private isDragging: boolean = false;
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start() {
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input.on(Input.EventType.TOUCH_START, this.onTouchStart, this);
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input.on(Input.EventType.TOUCH_MOVE, this.onTouchMove, this);
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input.on(Input.EventType.TOUCH_END, this.onTouchEnd, this);
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input.on(Input.EventType.TOUCH_CANCEL, this.onTouchEnd, this);
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}
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onDestroy() {
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input.off(Input.EventType.TOUCH_START, this.onTouchStart, this);
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input.off(Input.EventType.TOUCH_MOVE, this.onTouchMove, this);
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input.off(Input.EventType.TOUCH_END, this.onTouchEnd, this);
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input.off(Input.EventType.TOUCH_CANCEL, this.onTouchEnd, this);
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}
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onTouchStart(e: EventTouch) {
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this.startPos.set(e.getLocation().x, e.getLocation().y, 0);
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this.isDragging = true;
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}
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onTouchMove(e: EventTouch) {
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if (!this.isDragging) return;
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this.endPos.set(e.getLocation().x, e.getLocation().y, 0);
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const dragVec = new Vec3(
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this.startPos.x - this.endPos.x,
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this.startPos.y - this.endPos.y,
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0
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);
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if (dragVec.length() < 10) {
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this.trajectory.hideTrajectory();
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return;
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}
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// 主方向（始终向前 + 抬升）
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const forward = new Vec3(0, 0.5, 1).normalize();
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// 力度
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const power = Math.min(dragVec.y * 0.05 + 10, this.maxPower);
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// 左右弧线
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const sideForce = dragVec.x * 0.02;
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// 显示轨迹
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this.trajectory.showTrajectory(
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// this.rigidBody.node.worldPosition,
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this.startPos.clone(),
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forward,
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power,
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sideForce
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);
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}
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onTouchEnd(e: EventTouch) {
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if (!this.isDragging) return;
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this.isDragging = false;
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this.trajectory.hideTrajectory();
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this.endPos.set(e.getLocation().x, e.getLocation().y, 0);
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const dragVec = new Vec3(
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this.startPos.x - this.endPos.x,
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this.startPos.y - this.endPos.y,
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0
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);
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if (dragVec.length() < 10) return;
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// 主方向
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const forward = new Vec3(0, 0.5, 1).normalize();
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// 力度
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const power = Math.min(dragVec.y * 0.05 + 10, this.maxPower);
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// 左右弧线
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const sideForce = dragVec.x * 0.02;
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// 发射冲量
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const impulse = forward.multiplyScalar(power);
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impulse.x += sideForce;
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this.rigidBody.applyImpulse(impulse);
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}
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}
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