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https://github.com/Rundll86/Dog-Lynx-And-HCN.git
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fallingshrimp
2232c9148a
将 randv2_range 重命名为 randomVector2In，randc_from 重命名为 randomChoiceFrom，randc_from_weights 重命名为 randChoiceWeightsFrom，并新增 randomRingPoint 方法
41 lines
1.3 KiB
GDScript
41 lines
1.3 KiB
GDScript
class_name MathTool
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static func rate(value: float) -> bool:
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return randf() < value
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static func randomVector2In(offset: float):
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return Vector2(
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randf_range(-offset, offset),
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randf_range(-offset, offset)
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)
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static func randomRingPoint(innerRadius: float, outerRadius: float):
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return Vector2.from_angle(randf_range(0, 2 * PI)) * randf_range(innerRadius, outerRadius)
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static func randomChoiceFrom(array: Array):
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return array[randi() % array.size()]
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static func randChoiceWeightsFrom(indexes: Array, weights: Array[int]):
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var totals: Array = []
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var index = 0
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for i in indexes:
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for j in range(weights[index]):
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totals.append(i)
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index += 1
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return randomChoiceFrom(totals)
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static func signBeforeStr(value: float):
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return ("+" if value > 0 else "-" if value < 0 else "") + str(abs(value))
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static func percent(value: float):
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return value / 100
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static func shrimpRate(value: float):
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return floor(value) + int(rate(value - floor(value)))
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static func getClosestIntersection(a: Vector2, b: Vector2, r: float) -> Vector2:
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var ab = b - a
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var distance = ab.length()
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if distance < 0.00001:
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return a + Vector2.RIGHT * r
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var abNormalized = ab / distance
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var distanceB = distance
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if distanceB <= r:
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return b
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var intersection = a + abNormalized * r
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return intersection
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static func priority(a, b):
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return a if a else b
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