starmen1265
3c6f31b503
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
60 lines
1.6 KiB
GDScript
60 lines
1.6 KiB
GDScript
class_name OceanScroll
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extends Node2D
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## 滚动海面：三贴图循环 + 岛屿装饰随机飘过。
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## 视口 540x960，贴图世界尺寸 540：3 块连续贴图在任意滚动相位下
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## 都能覆盖 [0,960]，2 块会在屏幕底部留缺口。
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const TILE := preload("res://assets/svg/ocean_tile.svg")
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const ISLAND := preload("res://assets/svg/island.svg")
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const SPEED := 120.0
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const TILE_WORLD := 540.0
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const CENTER_X := 270.0
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const TILE_COUNT := 3
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var _offset := 0.0
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var _tiles: Array[Sprite2D] = []
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var _islands: Array[Sprite2D] = []
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var _island_timer := 4.0
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func _ready() -> void:
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var tile_scale := TILE_WORLD / 256.0
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for i in TILE_COUNT:
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var tile := Sprite2D.new()
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tile.texture = TILE
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tile.scale = Vector2(tile_scale, tile_scale)
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tile.position.x = CENTER_X
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add_child(tile)
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_tiles.append(tile)
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func _process(delta: float) -> void:
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_offset = fmod(_offset + SPEED * delta, TILE_WORLD)
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for i in TILE_COUNT:
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_tiles[i].position.y = _offset - TILE_WORLD * 0.5 + TILE_WORLD * float(i)
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_update_islands(delta)
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func _update_islands(delta: float) -> void:
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_island_timer -= delta
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if _island_timer <= 0.0:
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_island_timer = randf_range(5.0, 9.0)
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if _islands.size() < 3:
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_spawn_island()
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for island in _islands:
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island.position.y += SPEED * delta
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for island in _islands.duplicate():
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if island.position.y > 1060.0:
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_islands.erase(island)
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island.queue_free()
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func _spawn_island() -> void:
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var island := Sprite2D.new()
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island.texture = ISLAND
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island.position = Vector2(randf_range(90.0, 450.0), -90.0)
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island.scale = Vector2.ONE * randf_range(0.7, 1.15)
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add_child(island)
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_islands.append(island)
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