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#pragma once
mat3 translate(float Tx, float Ty)
{
mat3* res = new mat3(1.f);
(*res)[0][2] = Tx;
(*res)[1][2] = Ty;
return *res;
}
mat4 translate(float Tx, float Ty, float Tz)
{
mat4* res = new mat4(1.f);
(*res)[0][3] = Tx;
(*res)[1][3] = Ty;
(*res)[2][3] = Tz;
return *res;
}
mat3 scale(float Sx, float Sy)
{
mat3* res = new mat3(1.f);
(*res)[0][0] = Sx;
(*res)[1][1] = Sy;
return *res;
}
mat4 scale(float Sx, float Sy, float Sz)
{
mat4* res = new mat4(1.f);
(*res)[0][0] = Sx;
(*res)[1][1] = Sy;
(*res)[2][2] = Sy;
return *res;
}
mat3 scale(float S)
{
return scale(S, S);
}
mat3 rotate(float theta)
{
mat3* res = new mat3(1.f);
(*res)[0][0] = (*res)[1][1] = (float)cos(theta);
(*res)[0][1] = (float)sin(theta);
(*res)[1][0] = -(*res)[0][1];
return *res;
}
mat3 mirrorX()
{
mat3* res = new mat3(1.f);
(*res)[1][1] = -1;
return *res;
}
mat3 mirrorY()
{
mat3* res = new mat3(1.f);
(*res)[0][0] = -1;
return *res;
}
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