122 lines
3.5 KiB
GDScript
122 lines
3.5 KiB
GDScript
# ============================================================================
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# 简单草地瓦片 - GrassTile.gd
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#
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# 一个简单的32x32草地瓦片，自动对齐网格
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# 使用方法：
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# 1. 在场景中实例化 grass_tile_prefab.tscn
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# 2. 设置 texture 属性
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# 3. 调用 set_grid_position() 设置网格位置
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# ============================================================================
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class_name GrassTile
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extends Sprite2D
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# ============================================================================
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# 导出属性
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# ============================================================================
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@export var grid_position: Vector2i = Vector2i.ZERO : set = set_grid_position
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@export var auto_snap: bool = true # 是否自动对齐网格
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# ============================================================================
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# 信号
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# ============================================================================
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signal position_changed(new_grid_pos: Vector2i)
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func _ready():
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# 如果没有纹理，创建一个默认的占位符
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if not texture:
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_create_placeholder_texture()
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# 验证纹理尺寸
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_validate_texture()
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# 自动对齐到网格
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if auto_snap:
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snap_to_grid()
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# ============================================================================
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# 公共方法
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# ============================================================================
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# 设置网格位置并自动对齐
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func set_grid_position(new_pos: Vector2i):
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if grid_position != new_pos:
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grid_position = new_pos
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if auto_snap:
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snap_to_grid()
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position_changed.emit(grid_position)
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# 对齐到网格中心
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func snap_to_grid():
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position = Vector2(
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grid_position.x * 32.0 + 16.0,
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grid_position.y * 32.0 + 16.0
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)
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# 从世界坐标设置位置（会自动转换为网格坐标）
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func set_world_position(world_pos: Vector2):
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var new_grid_pos = Vector2i(
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int(world_pos.x / 32.0),
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int(world_pos.y / 32.0)
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)
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set_grid_position(new_grid_pos)
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# 获取世界坐标
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func get_world_position() -> Vector2:
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return position
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# ============================================================================
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# 私有方法
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# ============================================================================
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# 创建占位符纹理
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func _create_placeholder_texture():
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var image = Image.create(32, 32, false, Image.FORMAT_RGBA8)
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# 创建简单的草地图案
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var grass_color = Color(0.3, 0.8, 0.3, 1.0) # 亮绿色
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var dark_color = Color(0.2, 0.6, 0.2, 1.0) # 深绿色
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# 填充基础颜色
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image.fill(grass_color)
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# 添加简单的格子图案
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for x in range(32):
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for y in range(32):
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if (x + y) % 8 < 4:
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image.set_pixel(x, y, dark_color)
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# 创建纹理
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var placeholder_texture = ImageTexture.new()
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placeholder_texture.set_image(image)
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texture = placeholder_texture
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# 验证纹理尺寸
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func _validate_texture():
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if texture:
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var size = Vector2i(texture.get_width(), texture.get_height())
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if size.x % 32 != 0 or size.y % 32 != 0:
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push_warning("GrassTile: 纹理尺寸不是32的倍数: " + str(size))
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return false
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return true
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return false
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# ============================================================================
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# 调试方法
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# ============================================================================
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# 获取瓦片信息
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func get_tile_info() -> Dictionary:
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return {
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"grid_position": grid_position,
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"world_position": position,
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"texture_size": texture.get_size() if texture else Vector2.ZERO,
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"auto_snap": auto_snap
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}
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# 打印瓦片信息
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func print_info():
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var info = get_tile_info()
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print("=== 草地瓦片信息 ===")
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for key in info:
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print(key, ": ", info[key]) |