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30 lines
664 B
C
30 lines
664 B
C
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#ifndef GAME_BEZIER_H
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#define GAME_BEZIER_H
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// Evaluates the Bernstein polynomial of degree 3/a one-dimensional Bezier curve
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//
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// https://en.wikipedia.org/w/index.php?title=Bernstein_polynomial&oldid=965314973
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//
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// f(t) = (1-t)³ a + 3(1-t)²t b + 3(1-t)t² c + t³ d
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class CCubicBezier
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{
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float a;
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float b;
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float c;
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float d;
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CCubicBezier(float a, float b, float c, float d)
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{
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this->a = a;
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this->b = b;
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this->c = c;
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this->d = d;
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}
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public:
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CCubicBezier() {}
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float Evaluate(float t) const;
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float Derivative(float t) const;
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static CCubicBezier With(float Start, float StartDerivative, float EndDerivative, float End);
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};
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#endif // GAME_BEZIER_H
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