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Add asserts

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This commit is contained in:
David Rowe 2015-10-01 15:48:37 -07:00
parent c56ac24602
commit e56d2d9b43
1 changed files with 4 additions and 0 deletions
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libraries/shared/src/Interpolate.cpp
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@ -11,14 +11,18 @@
#include "Interpolate.h" #include "Interpolate.h"
#include <assert.h>
#include <math.h> #include <math.h>
float Interpolate::bezierInterpolate(float y1, float y2, float y3, float u) { float Interpolate::bezierInterpolate(float y1, float y2, float y3, float u) {
// https://en.wikipedia.org/wiki/Bezier_curve // https://en.wikipedia.org/wiki/Bezier_curve
assert(0.0f <= u && u <= 1.0f);
return (1.0f - u) * (1.0f - u) * y1 + 2.0f * (1.0f - u) * u * y2 + u * u * y3; return (1.0f - u) * (1.0f - u) * y1 + 2.0f * (1.0f - u) * u * y2 + u * u * y3;
} }
float Interpolate::interpolate3Points(float y1, float y2, float y3, float u) { float Interpolate::interpolate3Points(float y1, float y2, float y3, float u) {
assert(0.0f <= u && u <= 1.0f);
if (u <= 0.5f && y1 == y2 || u >= 0.5f && y2 == y3) { if (u <= 0.5f && y1 == y2 || u >= 0.5f && y2 == y3) {
// Flat line. // Flat line.
return y2; return y2;