69 lines
2.7 KiB
GDScript
69 lines
2.7 KiB
GDScript
extends Node2D
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## Two elevated cloud decks, with weather-driven coverage, color and moving shadows.
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const TEXTURE := preload("res://assets/planets/cloud_mist.png")
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var seed_value := 0
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var _banks: Array[Dictionary] = []
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var _time := 0.0
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var clouds: Node2D
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var shadows: Node2D
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var coverage := 0.8
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var darkness := 0.0
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var weather_wind := Vector2(18,6)
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var _coverage := 0.8
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var _darkness := 0.0
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func _ready() -> void:
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texture_filter = CanvasItem.TEXTURE_FILTER_LINEAR_WITH_MIPMAPS
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shadows = Node2D.new()
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shadows.name = "CloudShadows"
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shadows.z_index = 5
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add_child(shadows)
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clouds = Node2D.new()
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clouds.name = "AboveLander"
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clouds.z_index = 70
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add_child(clouds)
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var rng := RandomNumberGenerator.new()
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rng.seed = seed_value ^ 0x434c4f55
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var mist_material := ShaderMaterial.new()
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mist_material.shader = preload("res://resources/effects/cloud_mist.gdshader")
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for layer in range(2):
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var radius := 3 if layer == 0 else 2
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for y in range(-radius,radius+1):
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for x in range(-radius,radius+1):
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var mist := Sprite2D.new()
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mist.texture = TEXTURE
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mist.material = mist_material
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mist.scale = Vector2.ONE*rng.randf_range(1250,1750)/TEXTURE.get_width() * (1.25 if layer == 1 else 1.0)
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mist.rotation = rng.randf_range(-PI,PI)
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clouds.add_child(mist)
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var shadow := Sprite2D.new()
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shadow.texture = TEXTURE
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shadow.material = mist_material
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shadow.scale = mist.scale
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shadow.rotation = mist.rotation
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shadows.add_child(shadow)
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_banks.append({"mist":mist,"shadow":shadow,"origin":Vector2(x*750,y*750)+Vector2(rng.randf_range(-200,200),rng.randf_range(-200,200)),"parallax":1.22 if layer == 0 else 1.38,"speed":rng.randf_range(0.25,0.55),"layer":layer,"alpha":rng.randf_range(0.21,0.30)})
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_process(0)
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func set_weather(cloud_cover: float, dark: float, wind: Vector2) -> void:
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coverage = clampf(cloud_cover,0.0,1.8)
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darkness = clampf(dark,0.0,1.0)
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weather_wind = wind
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func _process(delta: float) -> void:
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_time += delta
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_coverage = move_toward(_coverage,coverage,delta*0.22)
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_darkness = move_toward(_darkness,darkness,delta*0.12)
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var camera := get_viewport().get_camera_2d()
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var center := camera.get_screen_center_position() if camera != null else Vector2.ZERO
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for bank in _banks:
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bank.origin += weather_wind*float(bank.speed)*delta
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var location := Vector2(wrapf(bank.origin.x,-2800,2800),wrapf(bank.origin.y,-2800,2800))+center*(1.0-float(bank.parallax))
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bank.mist.position = location
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bank.shadow.position = location+Vector2(45,60)
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var color := Color("d6e0e8").lerp(Color("060b14"),_darkness*0.98)
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var amount := _coverage if int(bank.layer) == 0 else _coverage*smoothstep(0.20,0.85,_darkness)*0.55
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color.a = float(bank.alpha)*amount
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bank.mist.modulate = color
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bank.shadow.modulate = Color(0.02,0.035,0.06,amount*(0.025+_darkness*0.055))
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