42 lines
1.3 KiB
GDScript3
42 lines
1.3 KiB
GDScript3
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extends Node3D
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@export var day_length_minutes: float = 1.0 # 1-minute full day cycle
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@export var min_light_energy := 0.1
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@export var max_light_energy := 1.0
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@export var sun: DirectionalLight3D
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@export var environment: WorldEnvironment
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var time_of_day := 0.0 # 0 to 1, where 0 is midnight, 0.5 is noon, 1 is midnight again
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func _process(delta: float) -> void:
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if day_length_minutes <= 0:
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return
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var day_speed = 1.0 / (day_length_minutes * 60.0)
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time_of_day = fmod(time_of_day + delta * day_speed, 1.0)
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#_update_sun_rotation()
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#_update_light_intensity()
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#_update_sky_color()
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func _update_sun_rotation():
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var angle = time_of_day * 360.0
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rotation_degrees.x = angle - 90.0 # Rotate around X to simulate rising and setting
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func _update_light_intensity():
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# Use cosine to simulate brightness change
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var sun_height = clamp(sin(time_of_day * PI * 2.0), 0.0, 1.0)
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var intensity = lerp(min_light_energy, max_light_energy, sun_height)
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sun.light_energy = intensity
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func _update_sky_color():
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var sky_mat = environment.environment.sky.sky_material as ProceduralSkyMaterial
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if sky_mat:
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var horizon_day = Color(0.4, 0.7, 1.0)
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var horizon_night = Color(0.02, 0.02, 0.1)
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var blend = clamp(sin(time_of_day * PI * 2.0), 0.0, 1.0)
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sky_mat.sky_horizon_color = horizon_night.lerp(horizon_day, blend)
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sky_mat.sky_top_color = horizon_night.lerp(horizon_day, blend)
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