feat: 场景与核心玩法脚本（双机型/波次/Boss/道具/炸弹/地面单位/浮游炮激光）

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
2026-08-31 00:31:29 +08:00
parent 024447fbda
commit 3c6f31b503
36 changed files with 1692 additions and 0 deletions
@@ -0,0 +1,59 @@
+class_name OceanScroll
+extends Node2D
+## 滚动海面：三贴图循环 + 岛屿装饰随机飘过。
+## 视口 540x960，贴图世界尺寸 540：3 块连续贴图在任意滚动相位下
+## 都能覆盖 [0,960]，2 块会在屏幕底部留缺口。
+
+const TILE := preload("res://assets/svg/ocean_tile.svg")
+const ISLAND := preload("res://assets/svg/island.svg")
+const SPEED := 120.0
+const TILE_WORLD := 540.0
+const CENTER_X := 270.0
+const TILE_COUNT := 3
+
+var _offset := 0.0
+var _tiles: Array[Sprite2D] = []
+var _islands: Array[Sprite2D] = []
+var _island_timer := 4.0
+
+
+func _ready() -> void:
+	var tile_scale := TILE_WORLD / 256.0
+	for i in TILE_COUNT:
+		var tile := Sprite2D.new()
+		tile.texture = TILE
+		tile.scale = Vector2(tile_scale, tile_scale)
+		tile.position.x = CENTER_X
+		add_child(tile)
+		_tiles.append(tile)
+
+
+func _process(delta: float) -> void:
+	_offset = fmod(_offset + SPEED * delta, TILE_WORLD)
+	for i in TILE_COUNT:
+		_tiles[i].position.y = _offset - TILE_WORLD * 0.5 + TILE_WORLD * float(i)
+
+	_update_islands(delta)
+
+
+func _update_islands(delta: float) -> void:
+	_island_timer -= delta
+	if _island_timer <= 0.0:
+		_island_timer = randf_range(5.0, 9.0)
+		if _islands.size() < 3:
+			_spawn_island()
+	for island in _islands:
+		island.position.y += SPEED * delta
+	for island in _islands.duplicate():
+		if island.position.y > 1060.0:
+			_islands.erase(island)
+			island.queue_free()
+
+
+func _spawn_island() -> void:
+	var island := Sprite2D.new()
+	island.texture = ISLAND
+	island.position = Vector2(randf_range(90.0, 450.0), -90.0)
+	island.scale = Vector2.ONE * randf_range(0.7, 1.15)
+	add_child(island)
+	_islands.append(island)