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Implement cubic_interpolate() as MathFunc for refactoring

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Silc 'Tokage' Renew
2022-02-11 12:43:21 +09:00
parent daf9729b92
commit 865da09871
12 changed files with 142 additions and 115 deletions
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20
core/math/vector2.cpp
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@ -153,22 +153,10 @@ Vector2 Vector2::limit_length(const real_t p_len) const {
}
Vector2 Vector2::cubic_interpolate(const Vector2 &p_b, const Vector2 &p_pre_a, const Vector2 &p_post_b, const real_t p_weight) const {
Vector2 p0 = p_pre_a;
Vector2 p1 = *this;
Vector2 p2 = p_b;
Vector2 p3 = p_post_b;
real_t t = p_weight;
real_t t2 = t * t;
real_t t3 = t2 * t;
Vector2 out;
out = 0.5f *
((p1 * 2.0f) +
(-p0 + p2) * t +
(2.0f * p0 - 5.0f * p1 + 4 * p2 - p3) * t2 +
(-p0 + 3.0f * p1 - 3.0f * p2 + p3) * t3);
return out;
Vector2 res = *this;
res.x = Math::cubic_interpolate(res.x, p_b.x, p_pre_a.x, p_post_b.x, p_weight);
res.y = Math::cubic_interpolate(res.y, p_b.y, p_pre_a.y, p_post_b.y, p_weight);
return res;
}
Vector2 Vector2::move_toward(const Vector2 &p_to, const real_t p_delta) const {