- #ifndef _TRIG_H_ 
- #define _TRIG_H_ 
-   
- #include "dr_types.h" 
-   
- extern float gFloat_sine_table[91]; 
- extern br_fixed_ls gFixed_sine_table[91]; 
- extern br_matrix23 mat23tmp1; 
- extern br_matrix23 mat23tmp2; 
- extern br_matrix34 mattmp1__trig; // suffix added to avoid duplicate symbol 
- extern br_matrix34 mattmp2__trig; // suffix added to avoid duplicate symbol 
-   
- float FastFloatSin(int pAngle_in_degrees); 
-   
- float FastFloatCos(int pAngle_in_degrees); 
-   
- float FastFloatTan(int pAngle_in_degrees); 
-   
- br_scalar FastScalarSin(int pAngle_in_degrees); 
-   
- br_scalar FastScalarCos(int pAngle_in_degrees); 
-   
- br_scalar FastScalarTan(int pAngle_in_degrees); 
-   
- br_scalar FastScalarSinAngle(br_angle pBR_angle); 
-   
- br_scalar FastScalarCosAngle(br_angle pBR_angle); 
-   
- br_scalar FastScalarTanAngle(br_angle pBR_angle); 
-   
- float FastFloatArcSin(float pValue); 
-   
- float FastFloatArcCos(float pValue); 
-   
- br_scalar FastScalarArcSin(br_scalar pValue); 
-   
- br_scalar FastScalarArcCos(br_scalar pValue); 
-   
- float FastFloatArcTan2(float pY, float pX); 
-   
- br_scalar FastScalarArcTan2(br_scalar pY, br_scalar pX); 
-   
- br_angle FastFloatArcTan2Angle(float pY, float pX); 
-   
- br_angle FastScalarArcTan2Angle(br_scalar pY, br_scalar pX); 
-   
- void DRMatrix34RotateX(br_matrix34* mat, br_angle rx); 
-   
- void DRMatrix34RotateY(br_matrix34* mat, br_angle ry); 
-   
- void DRMatrix34RotateZ(br_matrix34* mat, br_angle rz); 
-   
- void DRMatrix34Rotate(br_matrix34* mat, br_angle r, br_vector3* a); 
-   
- void DRMatrix34PreRotateX(br_matrix34* mat, br_angle rx); 
-   
- void DRMatrix34PostRotateX(br_matrix34* mat, br_angle rx); 
-   
- void DRMatrix34PreRotateY(br_matrix34* mat, br_angle ry); 
-   
- void DRMatrix34PostRotateY(br_matrix34* mat, br_angle ry); 
-   
- void DRMatrix34PreRotateZ(br_matrix34* mat, br_angle rz); 
-   
- void DRMatrix34PostRotateZ(br_matrix34* mat, br_angle rz); 
-   
- void DRMatrix34PreRotate(br_matrix34* mat, br_angle r, br_vector3* axis); 
-   
- void DRMatrix34PostRotate(br_matrix34* mat, br_angle r, br_vector3* axis); 
-   
- void DRMatrix23Rotate(br_matrix23* mat, br_angle rz); 
-   
- void DRMatrix23PreRotate(br_matrix23* mat, br_angle rz); 
-   
- void DRMatrix23PostRotate(br_matrix23* mat, br_angle rz); 
-   
- #endif 
-