82 lines
934 B
C
82 lines
934 B
C
#ifndef HANDMADE_MATH_H
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#define HANDMADE_MATH_H
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// TODO: Make these static.
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typedef struct v2 {
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F32 X, Y;
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F32 E[2];
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} v2;
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v2 V2(F32 X, F32 Y)
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{
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v2 Result;
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Result.X = X;
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Result.Y = Y;
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return Result;
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}
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v2 V2Multiply(F32 A, v2 B)
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{
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v2 Result;
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Result.X = A * B.X;
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Result.Y = A * B.Y;
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return Result;
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}
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v2 V2Unary(v2 A)
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{
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v2 Result;
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Result.X = -A.X;
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Result.Y = -A.Y;
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return Result;
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}
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v2 V2Add(v2 A, v2 B)
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{
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v2 Result;
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Result.X = A.X + B.X;
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Result.Y = A.Y + B.Y;
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return Result;
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}
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v2 V2Subtract(v2 A, v2 B)
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{
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v2 Result;
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Result.X = A.X - B.X;
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Result.Y = A.Y - B.Y;
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return Result;
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}
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F32 Square(F32 A)
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{
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F32 Result;
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Result = A * A;
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return Result;
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}
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F32 InnerProduct(v2 A, v2 B)
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{
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F32 Result = A.X*B.X + A.Y*B.Y;
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return Result;
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}
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F32 LengthSq(v2 A)
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{
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F32 Result = InnerProduct(A, A);
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return Result;
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}
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#endif
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