feat(towers): 实现防御塔基类与4种塔及塔管理器

2026-03-21 08:04:15 +00:00
parent 6a21ece3ee
commit 45cf1e4642
6 changed files with 708 additions and 0 deletions
--- a/game/towers/HRBPTower.ts
+++ b/game/towers/HRBPTower.ts
@@ -0,0 +1,90 @@
+import type Phaser from 'phaser'
+import { TowerBase } from './TowerBase'
+import type { EnemyBase } from '../enemies/EnemyBase'
+import type { TowerBase as TowerBaseType } from './TowerBase'
+
+const BUFF_ATTACK_SPEED_BONUS = 0.2
+
+export class HRBPTower extends TowerBase {
+  private buffCooldown: number = 0
+  private readonly BUFF_INTERVAL = 500
+  private nearbyTowersBuff: Set<TowerBaseType> = new Set()
+
+  constructor(scene: Phaser.Scene, gridX: number, gridY: number) {
+    super(scene, gridX, gridY, 80, 1, 0, 0)
+    this.drawSprite()
+  }
+
+  drawSprite(): void {
+    if (!this.sprite) return
+    this.sprite.clear()
+    // 菱形（粉色）
+    this.sprite.fillStyle(0xec4899, 1)
+    this.sprite.fillTriangle(0, -16, 16, 0, 0, 16)
+    this.sprite.fillTriangle(0, -16, -16, 0, 0, 16)
+    this.sprite.setPosition(this.px, this.py)
+    this.sprite.setDepth(10)
+  }
+
+  override update(delta: number, enemies: EnemyBase[]): void {
+    // HRBP 没有攻击逻辑，只做 BUFF
+    void enemies
+
+    if (!this.isActive) {
+      this.stamina = Math.min(
+        this.maxStamina,
+        this.stamina + (this.staminaRegen * delta) / 1000
+      )
+      if (this.stamina > 20) this.isActive = true
+      this.updateStaminaBar()
+      return
+    }
+
+    this.buffCooldown -= delta
+    if (this.buffCooldown <= 0) {
+      this.buffCooldown = this.BUFF_INTERVAL
+      this.applyBuffToNearby()
+    }
+  }
+
+  setNearbyTowers(towers: TowerBaseType[]): void {
+    this.nearbyTowersBuff = new Set(towers)
+  }
+
+  private applyBuffToNearby(): void {
+    if (this.nearbyTowersBuff.size === 0) return
+    if (this.stamina < 5) {
+      this.isActive = false
+      return
+    }
+    this.stamina -= 5
+    this.updateStaminaBar()
+    // BUFF 效果通过 attackSpeedMultiplier 外部读取
+    // 这里显示一个粉色光圈效果
+    this.showBuffEffect()
+  }
+
+  private showBuffEffect(): void {
+    const g = this.scene.add.graphics()
+    g.lineStyle(2, 0xec4899, 0.6)
+    g.strokeCircle(this.px, this.py, 90)
+    g.setDepth(8)
+    this.scene.tweens.add({
+      targets: g,
+      alpha: 0,
+      duration: 400,
+      onComplete: () => g.destroy(),
+    })
+  }
+
+  getBuffedTowers(): Set<TowerBaseType> {
+    return this.nearbyTowersBuff
+  }
+
+  getAttackSpeedBonus(): number {
+    return BUFF_ATTACK_SPEED_BONUS
+  }
+
+  // HRBP 无直接攻击
+  attack(_target: EnemyBase): void {}
+}