feat(control) 多角色控制

systems/InputSystem.js

@@ -0,0 +1,86 @@
+// systems/InputSystem.js
+import { clearSelection, setActiveUnit } from './ControlMode.js';
+
+export class InputSystem {
+  constructor(scene) {
+    this.scene = scene;
+    this.selectionStart = null;
+
+    // 初始化键盘
+    const kb = scene.input.keyboard;
+    this.keys = {
+      up: [kb.addKey(Phaser.Input.Keyboard.KeyCodes.W), kb.addKey(Phaser.Input.Keyboard.KeyCodes.UP)],
+      down: [kb.addKey(Phaser.Input.Keyboard.KeyCodes.S), kb.addKey(Phaser.Input.Keyboard.KeyCodes.DOWN)],
+      left: [kb.addKey(Phaser.Input.Keyboard.KeyCodes.A), kb.addKey(Phaser.Input.Keyboard.KeyCodes.LEFT)],
+      right: [kb.addKey(Phaser.Input.Keyboard.KeyCodes.D), kb.addKey(Phaser.Input.Keyboard.KeyCodes.RIGHT)]
+    };
+
+    // 鼠标/触摸事件
+    scene.input.on('pointerdown', this.onPointerDown, this);
+    scene.input.on('pointerup', this.onPointerUp, this);
+  }
+
+  isKeyDown(keyGroup) {
+    return keyGroup.some(key => key.isDown);
+  }
+
+  update() {
+    // 键盘相对移动（仅当有激活单位）
+    const dir = { x: 0, y: 0 };
+    if (this.isKeyDown(this.keys.left)) dir.x -= 1;
+    if (this.isKeyDown(this.keys.right)) dir.x += 1;
+    if (this.isKeyDown(this.keys.up)) dir.y -= 1;
+    if (this.isKeyDown(this.keys.down)) dir.y += 1;
+
+    if (dir.x !== 0 || dir.y !== 0) {
+      this.scene.events.emit('move-relative', dir);
+    }
+  }
+
+  onPointerDown(pointer) {
+    if (pointer.leftButtonDown()) {
+      const worldX = pointer.worldX;
+      const worldY = pointer.worldY;
+
+      // 检查是否点中某个单位
+      let clickedUnit = null;
+      this.scene.unitGroup.getChildren().forEach(unit => {
+        const bounds = unit.getBounds();
+        if (worldX >= bounds.x && worldX <= bounds.right &&
+            worldY >= bounds.y && worldY <= bounds.bottom) {
+          clickedUnit = unit;
+        }
+      });
+
+      if (clickedUnit) {
+        // 切换控制目标
+        this.scene.events.emit('select-unit', clickedUnit);
+      } else {
+        // 开始框选或移动指令
+        this.selectionStart = { x: pointer.x, y: pointer.y };
+        this.scene.events.emit('selection-start', this.selectionStart);
+      }
+    }
+  }
+
+  onPointerUp(pointer) {
+    if (this.selectionStart) {
+      const rect = new Phaser.Geom.Rectangle(
+        Math.min(this.selectionStart.x, pointer.x),
+        Math.min(this.selectionStart.y, pointer.y),
+        Math.abs(pointer.x - this.selectionStart.x),
+        Math.abs(pointer.y - this.selectionStart.y)
+      );
+
+      // 如果框太小，视为“点击地面移动”
+      if (rect.width < 10 && rect.height < 10) {
+        this.scene.events.emit('move-to-point', pointer.worldX, pointer.worldY);
+      } else {
+        // 否则执行框选
+        this.scene.events.emit('selection-end', rect);
+      }
+
+      this.selectionStart = null;
+    }
+  }
+}