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-Changed the cubic interpolator, improves situation with PathFollow in #1659

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This commit is contained in:
Juan Linietsky 2015-04-13 09:47:03 -03:00
parent 2998515442
commit 28304bc330
1 changed files with 18 additions and 1 deletions
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19
core/math/math_2d.cpp
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@ -230,6 +230,23 @@ Vector2 Vector2::cubic_interpolate(const Vector2& p_b,const Vector2& p_pre_a, co
Vector2 p0=p_pre_a;
Vector2 p1=*this;
Vector2 p2=p_b;
Vector2 p3=p_post_b;
float t = p_t;
float t2 = t * t;
float 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;
/*
float mu = p_t;
float mu2 = mu*mu;
@ -239,7 +256,7 @@ Vector2 Vector2::cubic_interpolate(const Vector2& p_b,const Vector2& p_pre_a, co
Vector2 a3 = *this;
return ( a0*mu*mu2 + a1*mu2 + a2*mu + a3 );
*/
/*
float t = p_t;
real_t t2 = t*t;