46 lines
1.5 KiB
TypeScript
46 lines
1.5 KiB
TypeScript
// assets/scripts/GoalkeeperAI.ts
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import { _decorator, Component, Node, RigidBody, Vec3, math } from "cc";
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const { ccclass, property } = _decorator;
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@ccclass("GoalkeeperAI")
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export class GoalkeeperAI extends Component {
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@property(Node) ball!: Node;
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@property({ tooltip: "球门线Z（世界坐标）" }) goalLineZ = 10;
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@property({ tooltip: "守门员水平活动范围X" }) rangeX = 3.5;
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@property({ tooltip: "移动速度（m/s）" }) speed = 6;
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@property({ tooltip: "反应延迟（秒）" }) reactDelay = 0.15;
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private targetX = 0;
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private tAcc = 0;
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private tmp = new Vec3();
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update(dt: number) {
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if (!this.ball) return;
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// 简化预测：用当前速度线性外推到球门线的交点
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const rb = this.ball.getComponent(RigidBody);
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if (!rb) return;
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rb.getLinearVelocity(this.tmp);
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const v = this.tmp.clone();
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const bp = this.ball.worldPosition.clone();
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if (Math.abs(v.z) < 0.1) return; // 几乎不朝球门方向飞
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const timeToLine = (this.goalLineZ - bp.z) / v.z; // z 轴朝向球门
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if (timeToLine < 0) return; // 已过线或背离
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this.tAcc += dt;
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if (this.tAcc >= this.reactDelay) {
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const predictX = bp.x + v.x * timeToLine;
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this.targetX = math.clamp(predictX, -this.rangeX, this.rangeX);
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this.tAcc = 0; // 下次再延迟
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}
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// 移动守门员
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const p = this.node.worldPosition;
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const dx = this.targetX - p.x;
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const step = math.clamp(dx, -this.speed * dt, this.speed * dt);
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this.node.setWorldPosition(p.x + step, p.y, p.z);
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}
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}
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