31 lines
1.1 KiB
GDScript3
31 lines
1.1 KiB
GDScript3
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extends ReferenceRect
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const battle_bg_shader = preload('res://shaders/tilemap_shader.gdshader')
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var bg: SpriteLoader.BattleBackground
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var pal_l: int
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var atlas_l: int
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# Called when the node enters the scene tree for the first time.
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func _ready() -> void:
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var battle_bg_mat := ShaderMaterial.new()
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battle_bg_mat.shader = battle_bg_shader
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$background.material = battle_bg_mat
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set_bg(1)
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func set_bg(index: int) -> void:
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self.bg = SpriteLoader.battle_backgrounds[index]
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self.pal_l = len(self.bg.palette_texs)
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self.atlas_l = len(self.bg.tile_atlas_texs)
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$background.texture = self.bg.tilemap_tex
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$background.material.set_shader_param('palette', self.bg.palette_texs[0])
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$background.material.set_shader_param('tile_atlas', self.bg.tile_atlas_texs[0])
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# Called every frame. 'delta' is the elapsed time since the previous frame.
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var t := 0.0
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func _process(delta: float) -> void:
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if not self.bg:
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return
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self.t = fmod(self.t + delta, 2.0)
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$background.material.set_shader_param('palette', self.bg.palette_texs[int(self.t * 30) % self.pal_l])
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$background.material.set_shader_param('tile_atlas', self.bg.tile_atlas_texs[int(self.t * 7.5) % self.atlas_l])
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