81 lines
2.9 KiB
GDScript
81 lines
2.9 KiB
GDScript
extends Spatial
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#const
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const LONGITUDE: int = -90 # we are on equator
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const SUNRISE: Color = Color("ffdb00")
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const SUNSET: Color = Color("ffdb00")
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const STANDARD_SKY_TOP: Color = Color("a5d6f1") #godots standard sky top color
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const SUNRISE_DEGREE: int = 15 #until this degree is sunset color
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const RISE_INTERPOL: int = SUNRISE_DEGREE + 15 #until this degree, sunrise interpolates to day
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const SUNSET_DEGREE: int = 170 #from this degree on is sunset color
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const SET_INTERPOL: int = SUNSET_DEGREE - 15 #until this degree, day interpolates to sunset
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#private members
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var _worldEnvironment: WorldEnvironment
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var _light: DirectionalLight
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var _max: float #max Daytime
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var _currentTime: float
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var _degree: float #current degrees of sun & light ((currentTime/maxTime) * 180)
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#var _standardSkyHorizon: Color = Color("d6eafa") #godots standard sky horizon color
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var _setSkyColor: Color #for setting current skycolor
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# Called when the node enters the scene tree for the first time.
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func _ready():
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#assign children
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_worldEnvironment = get_node("WorldEnvironment")
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assert(null != _worldEnvironment)
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_light = get_node("DirectionalLight")
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assert(null != _light)
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#set values
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_worldEnvironment.environment.background_sky.sun_longitude = LONGITUDE
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#get values (from the other side - adele)
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_max = Daytime.get_max()
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func _process(_delta):
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_currentTime = Daytime.get_time()
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_degree = 20 + (_currentTime/_max) * 140
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_sun_position()
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_light_rotation()
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_sky_light()
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#update sun position
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func _sun_position():
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_worldEnvironment.environment.background_sky.sun_latitude = _degree
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#update light position to sun position
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func _light_rotation():
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_light.rotation_degrees = Vector3(-(_degree), LONGITUDE, 0)
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#set light color depending on daytime
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func _sky_light():
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var new_light_energy = 0.2
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if _degree <= SUNRISE_DEGREE:
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#_worldEnvironment.environment.background_sky.sky_curve = 1
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_setSkyColor = SUNRISE
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elif _degree > SUNRISE_DEGREE and _degree < RISE_INTERPOL: #interpolate colors from sunrise sky to daytime sky
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_setSkyColor = SUNRISE.linear_interpolate(STANDARD_SKY_TOP, ((_degree-SUNRISE_DEGREE)/(RISE_INTERPOL-SUNRISE_DEGREE)))
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new_light_energy = 0.2 + inverse_lerp(SUNRISE_DEGREE, RISE_INTERPOL, _degree) * 0.8
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elif _degree >= RISE_INTERPOL and _degree <= SET_INTERPOL:
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#_worldEnvironment.environment.background_sky.sky_curve = 0.09
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_setSkyColor = STANDARD_SKY_TOP
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new_light_energy = 1.0
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elif _degree > SET_INTERPOL and _degree < SUNSET_DEGREE: #interpolate colors from daytime sky to sunset sky
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_setSkyColor = STANDARD_SKY_TOP.linear_interpolate(SUNSET, ((_degree-SET_INTERPOL)/(SUNSET_DEGREE-SET_INTERPOL)))
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new_light_energy = 0.2 + (1.0 - inverse_lerp(SET_INTERPOL, SUNSET_DEGREE, _degree)) * 0.8
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elif _degree >= SUNSET_DEGREE:
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_setSkyColor = SUNSET
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_worldEnvironment.environment.background_sky.sky_horizon_color = _setSkyColor
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_light.light_energy = new_light_energy
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_worldEnvironment.environment.ambient_light_energy = 0.2 + 0.3 * new_light_energy |