sijcdu
9dffacd938
Player: move/jump (Space), test flight (F, debug builds only). Key: pickup, hold S to aim with live trajectory preview, release to throw, W to warp to the thrown key. Spring bounce. Spikes deal damage. 3-heart health, Z consumes a heal item for +1 heart and a 5s shield. HUD with hearts and item count. Death screen with fade-to-black and restart. Hidden passages. Assets: Kenney Pixel Platformer (CC0).
84 lines
2.5 KiB
GDScript
84 lines
2.5 KiB
GDScript
extends Node2D
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const ATLAS := preload("res://assets/game/tilesets/kenney_tiles_atlas.png")
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const TILE := 18
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## 隐藏通道：下面这些格子在关卡开始时会被"挖空"，
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## 原本是实心石壁的地方就变成能穿过去的暗道。
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## 坐标是格坐标（格边长 18px），改这里就能挪位置。
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@export var hidden_cells: Array = [
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# ① 主线走廊上的石柱（第 13 列第 6~7 行）
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Vector2i(13, 6), Vector2i(13, 7),
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# ② 低层暗道（第 11 行第 12~15 列）
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Vector2i(12, 11), Vector2i(13, 11), Vector2i(14, 11), Vector2i(15, 11),
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]
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## 伪装贴图所在层：要低于角色(z=10)、高于地形(z=0~2)
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@export var cover_z_index: int = 3
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## 是否给洞口盖上"假墙"（关掉的话洞口会明显地露出来）
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@export var hide_with_cover: bool = true
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func _ready() -> void:
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var layers := _tile_layers()
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if layers.is_empty():
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return
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var base: TileMapLayer = layers[0]
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# 先把盖子做好（此时参考的那块墙还在），再挖空
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var covers: Array = []
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for cell in hidden_cells:
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covers.append([cell, _make_cover(cell) if hide_with_cover else null])
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for cell in hidden_cells:
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for layer in layers:
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layer.erase_cell(cell)
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for pair in covers:
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var sprite: Sprite2D = pair[1]
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if sprite != null:
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add_child(sprite)
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sprite.global_position = base.to_global(base.map_to_local(pair[0]))
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func _tile_layers() -> Array:
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var out: Array = []
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for child in get_children():
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if child is TileMapLayer:
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out.append(child)
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return out
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## 借用正下方最近一块实心墙的贴图，做成一个完全没有碰撞的 Sprite2D
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func _make_cover(cell: Vector2i) -> Sprite2D:
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var found := Vector2i(-1, -1)
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for dy in range(1, 6):
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for layer in _tile_layers():
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var probe: Vector2i = cell + Vector2i(0, dy)
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var source_id: int = layer.get_cell_source_id(probe)
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if source_id == -1:
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continue
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var coords: Vector2i = layer.get_cell_atlas_coords(probe)
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var source := layer.tile_set.get_source(source_id) as TileSetAtlasSource
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if source == null:
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continue
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var data: TileData = source.get_tile_data(coords, 0)
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if data != null and data.get_collision_polygons_count(0) > 0:
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found = coords
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break
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if found.x >= 0:
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break
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if found.x < 0:
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return null
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var atlas_texture := AtlasTexture.new()
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atlas_texture.atlas = ATLAS
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atlas_texture.region = Rect2(found.x * TILE, found.y * TILE, TILE, TILE)
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var sprite := Sprite2D.new()
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sprite.texture = atlas_texture
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sprite.texture_filter = CanvasItem.TEXTURE_FILTER_NEAREST
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sprite.z_index = cover_z_index
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return sprite
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