60 lines
1.8 KiB
GDScript
60 lines
1.8 KiB
GDScript
extends Node2D
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#昼夜循环系统
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#时间直接获取现实世界时间
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#内容就是直接调节背景图片modulate的亮度HEX 白天最亮为c3c3c3 晚上最暗为131313 然后在这之间变化
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# 背景节点引用
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@onready var background_node=$'../BackgroundUI/BackgroundSwitcher'
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# 白天和夜晚的颜色值
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var day_color = Color("#c3c3c3")
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var night_color = Color("#131313")
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func _process(delta: float) -> void:
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if background_node == null:
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return
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# 获取当前时间
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var current_time = Time.get_datetime_dict_from_system()
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var hour = current_time.hour
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var minute = current_time.minute
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# 将时间转换为小数形式（0-24）
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var time_decimal = hour + minute / 60.0
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# 计算亮度插值因子
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var brightness_factor = calculate_brightness_factor(time_decimal)
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# 在白天和夜晚颜色之间插值
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var current_color = night_color.lerp(day_color, brightness_factor)
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# 应用到背景节点
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background_node.modulate = current_color
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# 计算亮度因子（0为夜晚，1为白天）
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func calculate_brightness_factor(time: float) -> float:
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# 定义关键时间点
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var sunrise = 6.0 # 日出时间 6:00
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var noon = 12.0 # 正午时间 12:00
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var sunset = 18.0 # 日落时间 18:00
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var midnight = 0.0 # 午夜时间 0:00
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if time >= sunrise and time <= noon:
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# 日出到正午：从0.2逐渐变亮到1.0
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return 0.2 + 0.8 * (time - sunrise) / (noon - sunrise)
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elif time > noon and time <= sunset:
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# 正午到日落：从1.0逐渐变暗到0.2
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return 1.0 - 0.8 * (time - noon) / (sunset - noon)
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else:
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# 夜晚时间：保持较暗状态（0.0-0.2之间）
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if time > sunset:
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# 日落后到午夜
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var night_progress = (time - sunset) / (24.0 - sunset)
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return 0.2 - 0.2 * night_progress
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else:
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# 午夜到日出
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var dawn_progress = time / sunrise
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return 0.0 + 0.2 * dawn_progress
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