25'ten fazla konu seçemezsiniz
Konular bir harf veya rakamla başlamalı, kısa çizgiler ('-') içerebilir ve en fazla 35 karakter uzunluğunda olabilir.
47 satır
1.8 KiB
47 satır
1.8 KiB
using System.Numerics;
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namespace Smoll {
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struct Transform2D {
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public Complex position;
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public Complex anchor;
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public float angle;
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public Complex scale;
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}
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sealed class Transform2DComponent : Component {
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public Transform2D transform;
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public Transform2DComponent() {
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transform = new Transform2D();
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transform.scale = Complex.ImaginaryOne + 1;
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}
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public Transform2D AbsoluteTransform() {
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var up = owner.parent;
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do {
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if(up == null) return transform;
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var component = up.GetComponent<Transform2DComponent>();
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if(component != null) {
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Transform2D combined = component.AbsoluteTransform();
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var unscaled_pos =
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(combined.position + transform.position - combined.anchor)
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/(Complex.Exp(Complex.ImaginaryOne * combined.angle) - combined.anchor);
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var normalized_pos = unscaled_pos/unscaled_pos.Magnitude;
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combined.position = unscaled_pos.Magnitude*(transform.scale.Real*normalized_pos.Real + transform.scale.Imaginary*normalized_pos.Imaginary*Complex.ImaginaryOne);
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var unscaled_anchor =
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(combined.position + transform.anchor - combined.anchor)
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/(Complex.Exp(Complex.ImaginaryOne * combined.angle) - combined.anchor);
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var normalized_anchor = unscaled_anchor/unscaled_anchor.Magnitude;
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combined.anchor = unscaled_anchor.Magnitude*(transform.scale.Real*normalized_anchor.Real + transform.scale.Imaginary*normalized_anchor.Imaginary*Complex.ImaginaryOne);
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combined.scale *= transform.scale;
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combined.angle += transform.angle;
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return combined;
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}
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up = up.parent;
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} while(true);
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}
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}
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}
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