feat: 添加敌人并且追踪player，同时避免敌人重叠

scenes/arena/arena.gd

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+extends Node2D
+class_name Arena
+
+@export var player: Player
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	Global.player = player
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	pass

scenes/arena/arena.gd.uid

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+uid://3v66wxbdeto5

scenes/arena/arena.tscn

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+[gd_scene format=3 uid="uid://dy355015qgab6"]
+
+[ext_resource type="Texture2D" uid="uid://cy4xfx762bxgb" path="res://assets/sprites/BG.png" id="1_8trdl"]
+[ext_resource type="Script" uid="uid://3v66wxbdeto5" path="res://scenes/arena/arena.gd" id="1_asdgj"]
+[ext_resource type="Texture2D" uid="uid://ov4fmsbglo55" path="res://assets/sprites/Map.png" id="2_5tue2"]
+[ext_resource type="PackedScene" uid="uid://cgljr7wcstmyp" path="res://scenes/unit/players/player_well_rounded.tscn" id="3_5tue2"]
+[ext_resource type="Script" uid="uid://cegcsi6n6r4gv" path="res://scenes/arena/camera_2d.gd" id="4_aj7ud"]
+[ext_resource type="PackedScene" uid="uid://bfuqhhe8r8asg" path="res://scenes/unit/enemy/enemy_chaser_slow.tscn" id="6_jx0ua"]
+
+[node name="Arena" type="Node2D" unique_id=1021720471 node_paths=PackedStringArray("player")]
+script = ExtResource("1_asdgj")
+player = NodePath("PlayerWellRounded")
+
+[node name="BlackBG" type="Sprite2D" parent="." unique_id=29383651]
+scale = Vector2(2, 2)
+texture = ExtResource("1_8trdl")
+
+[node name="GrassBG" type="Sprite2D" parent="." unique_id=1846603042]
+scale = Vector2(2, 2)
+texture = ExtResource("2_5tue2")
+
+[node name="PlayerWellRounded" parent="." unique_id=2022554550 instance=ExtResource("3_5tue2")]
+
+[node name="Camera2D" type="Camera2D" parent="." unique_id=758039070]
+script = ExtResource("4_aj7ud")
+
+[node name="EnemyChaserSlow" parent="." unique_id=2092979720 instance=ExtResource("6_jx0ua")]
+position = Vector2(-493, 26)
+
+[node name="EnemyChaserSlow2" parent="." unique_id=1388344292 instance=ExtResource("6_jx0ua")]
+position = Vector2(-382, 165)
+
+[node name="EnemyChaserSlow3" parent="." unique_id=597651166 instance=ExtResource("6_jx0ua")]
+position = Vector2(-385, -141)

scenes/arena/camera_2d.gd

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+extends Camera2D
+class_name Camera
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta: float) -> void:
+	if is_instance_valid(Global.player):
+		global_position = Global.player.position
+	pass

scenes/arena/camera_2d.gd.uid

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+uid://cegcsi6n6r4gv