72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
#ifndef __BANJO_KAZOOIE_MATH_H__
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#define __BANJO_KAZOOIE_MATH_H__
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#define SQ(x) ((x)*(x))
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#define TUPLE_ASSIGN(out, a, b, c) {\
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out[0] = a;\
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out[1] = b;\
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out[2] = c;\
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}
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#define TUPLE_COPY(dst, src) {\
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dst[0] = src[0];\
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dst[1] = src[1];\
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dst[2] = src[2];\
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}
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#define TUPLE_ADD(dst, vec) { \
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dst[0] += vec[0]; \
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dst[1] += vec[1]; \
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dst[2] += vec[2]; \
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}
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#define TUPLE_ADD_COPY(dst, vec1, vec2) { \
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dst[0] = vec1[0] + vec2[0]; \
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dst[1] = vec1[1] + vec2[1]; \
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dst[2] = vec1[2] + vec2[2]; \
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}
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#define TUPLE_DIFF(dst, vec) { \
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dst[0] -= vec[0]; \
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dst[1] -= vec[1]; \
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dst[2] -= vec[2]; \
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}
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#define TUPLE_DIFF_COPY(dst, vec1, vec2) { \
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dst[0] = vec1[0] - vec2[0]; \
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dst[1] = vec1[1] - vec2[1]; \
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dst[2] = vec1[2] - vec2[2]; \
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}
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#define TUPLE_MULTIPLY_COPY(dst, vec1, vec2) { \
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dst[0] = vec1[0] * vec2[0]; \
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dst[1] = vec1[1] * vec2[1]; \
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dst[2] = vec1[2] * vec2[2]; \
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}
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#define TUPLE_SCALE(vec, value) { \
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vec[0] *= value; \
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vec[1] *= value; \
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vec[2] *= value; \
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}
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#define TUPLE_SCALE_COPY(dst, vec, value) { \
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dst[0] = vec[0] * value; \
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dst[1] = vec[1] * value; \
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dst[2] = vec[2] * value; \
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}
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#define TUPLE_CROSS_PRODUCT(dst, vec1, vec2) { \
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dst[0] = vec1[1] * vec2[2] - vec1[2] * vec2[1]; \
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dst[1] = vec1[2] * vec2[0] - vec1[0] * vec2[2]; \
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dst[2] = vec1[0] * vec2[1] - vec1[1] * vec2[0]; \
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}
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#define LENGTH_SQ_VEC3F(v) (v[0]*v[0] + v[1]*v[1] + v[2]*v[2])
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#define LENGTH_VEC3F(v) gu_sqrtf(LENGTH_SQ_VEC3F(v))
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#define TUPLE_DOT_PRODUCT(vec1, vec2) (vec1[0] * vec2[0] + vec1[1] * vec2[1] + vec1[2] * vec2[2])
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#endif // __BANJO_KAZOOIE_MATH_H__
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