feat(control) 多角色控制

objects/Unit.js

@@ -0,0 +1,16 @@
+export default class Unit extends Phaser.Physics.Arcade.Sprite {
+  constructor(scene, x, y, texture) {
+    super(scene, x, y, texture);
+    scene.add.existing(this);
+    scene.physics.add.existing(this);
+    this.setCollideWorldBounds(true);
+  }
+
+  moveTo(targetX, targetY) {
+    this.scene.physics.moveToObject(this, {x: targetX, y: targetY}, 200);
+  }
+
+  moveRelative(dirX, dirY, speed = 100) {
+    this.setVelocity(dirX * speed, dirY * speed);
+  }
+}