3fdf00fdeb
Techdemo of Heliothryx game by Roman Shuvalov git-svn-id: svn://kolibrios.org@5225 a494cfbc-eb01-0410-851d-a64ba20cac60
105 lines
1.8 KiB
C
Executable File
105 lines
1.8 KiB
C
Executable File
#ifndef rs_mx_t_H_INCLUDED
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#define rs_mx_t_H_INCLUDED
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// Some matrix and vector stuff
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// by Roman Shuvalov
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#define RS_SQR(x) ((x)*(x))
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// actual period is 1024 ms (1.024 sec)
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#define RS_TIME_KOEF_SEC (M_PI * 2.0 * 64.0 / 65536.0)
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typedef struct {
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union {
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struct {
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float x;
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float y;
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float z;
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};
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float v[3];
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};
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} rs_vec3_t;
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typedef struct {
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union {
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struct {
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float x;
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float y;
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float z;
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float w;
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};
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float v[4];
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};
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} rs_vec4_t;
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rs_vec3_t rs_vec3_sub(rs_vec3_t v1, rs_vec3_t v2);
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rs_vec3_t rs_vec3_add(rs_vec3_t v1, rs_vec3_t v2);
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rs_vec3_t rs_vec3_mult(rs_vec3_t v, float s);
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rs_vec4_t rs_vec4_sub(rs_vec4_t v1, rs_vec4_t v2);
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void rs_vec4_add(rs_vec4_t dest, rs_vec4_t v1, rs_vec4_t v2);
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rs_vec4_t rs_vec4(float x, float y, float z, float w);
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rs_vec3_t rs_vec3(float x, float y, float z);
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float rs_vec4_length_sqr(rs_vec4_t src);
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float rs_vec3_length_sqr(rs_vec3_t src);
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float rs_vec4_length(rs_vec4_t v);
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float rs_vec3_length(rs_vec3_t v);
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float rs_vec4_dot(rs_vec4_t v1, rs_vec4_t v2);
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float rs_vec3_dot(rs_vec3_t v1, rs_vec3_t v2);
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rs_vec3_t rs_vec3_cross(rs_vec3_t u, rs_vec3_t v);
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rs_vec3_t rs_vec3_normalize(rs_vec3_t v);
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float rs_vec4_angle(rs_vec4_t u, rs_vec4_t v);
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float rs_vec3_cos_angle(rs_vec3_t u, rs_vec3_t v);
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float rs_vec3_distance_sqr(rs_vec3_t u, rs_vec3_t v);
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float rs_clamp(float x, float min1, float max1);
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int rs_clamp_i(int x, int min1, int max1);
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float rs_max(float x, float y);
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float rs_min(float x, float y);
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float rs_sign(float f);
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float rs_pow(float f, float p);
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float rs_fract(float f);
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float rs_exp_interpolate(float v_from, float v_to, float dt);
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float rs_linear_interpolate(float v_from, float v_to, float t);
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float rs_clamp_angle(float f);
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#endif // rs_mx_t_H_INCLUDED
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