feat：替换角色资源并增加基础tilesetlayer

- 增加底纹、草坪、河堤、河、小码头以及公会的tilesetlayer
- 替换角色精灵图为 4 行 4 列格式
- 更新 player.tscn：配置上下左右的 idle 和 walk 动画
- 更新 player.gd：重构动画逻辑，支持四方向判断与播放

scenes/characters/player.tscn

@@ -0,0 +1,178 @@
+[gd_scene load_steps=13 format=3 uid="uid://b2f8e24plwqgj"]
+
+[ext_resource type="Script" uid="uid://btka26hrcvgen" path="res://Scenes/characters/player.gd" id="1_script"]
+[ext_resource type="Texture2D" uid="uid://dpym0k5vurobw" path="res://assets/characters/player_spritesheet.png" id="2_texture"]
+
+[sub_resource type="CapsuleShape2D" id="CapsuleShape2D_1"]
+radius = 16.0
+height = 48.0
+
+[sub_resource type="Animation" id="Animation_idle_down"]
+resource_name = "idle_down"
+length = 0.1
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [0]
+}
+
+[sub_resource type="Animation" id="Animation_idle_left"]
+resource_name = "idle_left"
+length = 0.1
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [12]
+}
+
+[sub_resource type="Animation" id="Animation_idle_right"]
+resource_name = "idle_right"
+length = 0.1
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [8]
+}
+
+[sub_resource type="Animation" id="Animation_idle_up"]
+resource_name = "idle_up"
+length = 0.1
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 1,
+"values": [4]
+}
+
+[sub_resource type="Animation" id="Animation_walk_down"]
+resource_name = "walk_down"
+length = 0.8
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.2, 0.4, 0.6),
+"transitions": PackedFloat32Array(1, 1, 1, 1),
+"update": 1,
+"values": [0, 1, 2, 3]
+}
+
+[sub_resource type="Animation" id="Animation_walk_left"]
+resource_name = "walk_left"
+length = 0.8
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.2, 0.4, 0.6),
+"transitions": PackedFloat32Array(1, 1, 1, 1),
+"update": 1,
+"values": [12, 13, 14, 15]
+}
+
+[sub_resource type="Animation" id="Animation_walk_right"]
+resource_name = "walk_right"
+length = 0.8
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.2, 0.4, 0.6),
+"transitions": PackedFloat32Array(1, 1, 1, 1),
+"update": 1,
+"values": [8, 9, 10, 11]
+}
+
+[sub_resource type="Animation" id="Animation_walk_up"]
+resource_name = "walk_up"
+length = 0.8
+loop_mode = 1
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("Sprite2D:frame")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.2, 0.4, 0.6),
+"transitions": PackedFloat32Array(1, 1, 1, 1),
+"update": 1,
+"values": [4, 5, 6, 7]
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_1"]
+_data = {
+"idle_down": SubResource("Animation_idle_down"),
+"idle_left": SubResource("Animation_idle_left"),
+"idle_right": SubResource("Animation_idle_right"),
+"idle_up": SubResource("Animation_idle_up"),
+"walk_down": SubResource("Animation_walk_down"),
+"walk_left": SubResource("Animation_walk_left"),
+"walk_right": SubResource("Animation_walk_right"),
+"walk_up": SubResource("Animation_walk_up")
+}
+
+[node name="Player" type="CharacterBody2D"]
+script = ExtResource("1_script")
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+position = Vector2(1.5000005, -24.5)
+scale = Vector2(1, 1)
+texture = ExtResource("2_texture")
+hframes = 4
+vframes = 4
+
+[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
+position = Vector2(0, -24)
+shape = SubResource("CapsuleShape2D_1")
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="."]
+libraries = {
+"": SubResource("AnimationLibrary_1")
+}
+
+[node name="Camera2D" type="Camera2D" parent="."]
+zoom = Vector2(2, 2)