Re-Volt: /Users/frarees/Desktop/rv1/source/inc/Units.h Source File

00001 #ifndef __UNITS_H__
00002 #define __UNITS_H__
00003 
00005 //
00006 // Unit conversion stuff
00007 //
00009 
00010 
00011 #if defined(_PSX) || defined(_RCONV)
00012 
00013 // Playstation rescaling due to shittiness of not having a faggoting MPU
00014 #define SCALE(x, scale)   (((scale) < 0)? (x) >> -(scale): (x) << (scale))
00015 
00016 #define PSX_LENGTH_SHIFT  (-4)
00017 #define PSX_TIME_SHIFT    (7)
00018 #define PSX_MASS_SHIFT    (0)
00019 
00020 #define SMALL_SHIFT     4
00021 
00022 #define TO_LENGTH(x)    SCALE((x), PSX_LENGTH_SHIFT)
00023 #define TO_TIME(x)      SCALE((x), PSX_TIME_SHIFT)
00024 #define TO_MASS(x)      SCALE((x), PSX_MASS_SHIFT)
00025 
00026 #define TO_FREQ(x)      SCALE((x), -PSX_TIME_SHIFT)
00027 #define TO_VEL(x)     SCALE((x), PSX_LENGTH_SHIFT - PSX_TIME_SHIFT)
00028 #define TO_ACC(x)     SCALE((x), PSX_LENGTH_SHIFT - PSX_TIME_SHIFT - PSX_TIME_SHIFT)
00029 #define TO_FORCE(x)     SCALE((x), PSX_MASS_SHIFT + PSX_LENGTH_SHIFT - PSX_TIME_SHIFT - PSX_TIME_SHIFT)
00030 #define TO_TORQUE(x)    SCALE((x), PSX_MASS_SHIFT + PSX_LENGTH_SHIFT + PSX_LENGTH_SHIFT - PSX_TIME_SHIFT - PSX_TIME_SHIFT)
00031 #define TO_IMP(x)     SCALE((x), PSX_MASS_SHIFT + PSX_LENGTH_SHIFT - PSX_TIME_SHIFT)
00032 #define TO_INERTIA(x)   SCALE((x), PSX_MASS_SHIFT + PSX_LENGTH_SHIFT + PSX_LENGTH_SHIFT)
00033 #define TO_ANGVEL(x)    SCALE((x), -PSX_TIME_SHIFT)
00034 #define TO_ANGACC(x)    SCALE((x), -PSX_TIME_SHIFT - PSX_TIME_SHIFT)
00035 #define TO_GRIP(x)      SCALE((x), -PSX_LENGTH_SHIFT + PSX_TIME_SHIFT)
00036 #define TO_STIFFNESS(x)   SCALE((x), PSX_MASS_SHIFT - PSX_TIME_SHIFT - PSX_TIME_SHIFT)
00037 #define TO_DAMPING(x)   SCALE((x), PSX_MASS_SHIFT - PSX_TIME_SHIFT)
00038 #define TO_AXLEFRICTION(x)  SCALE((x), PSX_MASS_SHIFT + PSX_LENGTH_SHIFT)
00039 
00040 #define FROM_LENGTH(x)    SCALE((x), -PSX_LENGTH_SHIFT)
00041 #define FROM_TIME(x)    SCALE((x), -PSX_TIME_SHIFT)
00042 #define FROM_MASS(x)    SCALE((x), -PSX_MASS_SHIFT)
00043 
00044 #define FROM_FREQ(x)    SCALE((x), PSX_TIME_SHIFT)
00045 #define FROM_VEL(x)     SCALE((x), -PSX_LENGTH_SHIFT + PSX_TIME_SHIFT)
00046 #define FROM_ACC(x)     SCALE((x), -PSX_LENGTH_SHIFT + PSX_TIME_SHIFT + PSX_TIME_SHIFT)
00047 #define FROM_FORCE(x)   SCALE((x), -PSX_MASS_SHIFT + PSX_LENGTH_SHIFT + PSX_TIME_SHIFT + PSX_TIME_SHIFT)
00048 #define FROM_TORQUE(x)    SCALE((x), -PSX_MASS_SHIFT - PSX_LENGTH_SHIFT - PSX_LENGTH_SHIFT + PSX_TIME_SHIFT + PSX_TIME_SHIFT)
00049 #define FROM_IMP(x)     SCALE((x), -PSX_MASS_SHIFT - PSX_LENGTH_SHIFT + PSX_TIME_SHIFT)
00050 #define FROM_INERTIA(x)   SCALE((x), -PSX_MASS_SHIFT - PSX_LENGTH_SHIFT - PSX_LENGTH_SHIFT)
00051 #define FROM_ANGVEL(x)    SCALE((x), PSX_TIME_SHIFT)
00052 #define FROM_ANGACC(x)    SCALE((x), PSX_TIME_SHIFT + PSX_TIME_SHIFT)
00053 #define FROM_GRIP(x)    SCALE((x), PSX_LENGTH_SHIFT - PSX_TIME_SHIFT)
00054 #define FROM_STIFFNESS(x) SCALE((x), -PSX_MASS_SHIFT + PSX_TIME_SHIFT + PSX_TIME_SHIFT)
00055 #define FROM_DAMPING(x)   SCALE((x), -PSX_MASS_SHIFT + PSX_TIME_SHIFT)
00056 
00057 #define PSX_LENGTH(x)   SCALE((x), -PSX_LENGTH_SHIFT - 16)
00058 #define PSX_MAT(x)      SCALE((x), -4)
00059 
00060 #define OGU2MPH_SPEED (Real(0.01118))
00061 #define OGU2FPM_SPEED (Real(0.1016))
00062 #define OGU2KPH_SPEED (Real(0.018))
00063 
00064 #else // _PSX
00065 
00066 #define OGU2MPH_SPEED (Real(0.01118))
00067 #define MPH2OGU_SPEED (ONE / OGU2MPH_SPEED)
00068 #define OGU2FPM_SPEED (Real(0.1016))
00069 #define FPI2OGU_SPEED (ONE / OGU2FPM_SPEED)
00070 #define OGU2KPH_SPEED (Real(0.018))
00071 #define KPH2OGU_SPEED (ONE / OGU2KPH_SPEED)
00072 
00073 // Lovely N64 anc PC non-scaling
00074 #define TO_LENGTH(x)    (x)
00075 #define TO_TIME(x)      (x)
00076 #define TO_MASS(x)      (x)
00077 
00078 #define TO_FREQ(x)      (x)
00079 #define TO_VEL(x)     (x)
00080 #define TO_ACC(x)     (x)
00081 #define TO_FORCE(x)     (x)
00082 #define TO_TORQUE(x)    (x)
00083 #define TO_IMP(x)     (x)
00084 #define TO_INERTIA(x)   (x)
00085 #define TO_ANGVEL(x)    (x)
00086 #define TO_ANGACC(x)    (x)
00087 #define TO_GRIP(x)      (x)
00088 #define TO_STIFFNESS(x)   (x)
00089 #define TO_DAMPING(x)   (x)
00090 
00091 #define FROM_LENGTH(x)    (x)
00092 #define FROM_TIME(x)    (x)
00093 #define FROM_MASS(x)    (x)
00094 
00095 #define FROM_FREQ(x)    (x)
00096 #define FROM_VEL(x)     (x)
00097 #define FROM_ACC(x)     (x)
00098 #define FROM_FORCE(x)   (x)
00099 #define FROM_IMP(x)     (x)
00100 #define FROM_INERTIA(x)   (x)
00101 #define FROM_ANGVEL(x)    (x)
00102 #define FROM_ANGACC(x)    (x)
00103 #define FROM_GRIP(x)    (x)
00104 #define FROM_STIFFNESS(x) (x)
00105 #define FROM_DAMPING(x)   (x)
00106 
00107 #endif
00108 
00109 
00111 //
00112 // Vector and Matrix conversion stuff
00113 //
00115 
00116 #ifdef _PSX
00117 
00118 #define PSXMatrix(/*MAT * */mat, /*MATRIX * */matPSX) \
00119   { \
00120     (matPSX)->m[X][X] = PSX_MAT((mat)->m[XX]); \
00121     (matPSX)->m[X][Y] = PSX_MAT((mat)->m[YX]); \
00122     (matPSX)->m[X][Z] = PSX_MAT((mat)->m[ZX]); \
00123     (matPSX)->m[Y][X] = PSX_MAT((mat)->m[XY]); \
00124     (matPSX)->m[Y][Y] = PSX_MAT((mat)->m[YY]); \
00125     (matPSX)->m[Y][Z] = PSX_MAT((mat)->m[ZY]); \
00126     (matPSX)->m[Z][X] = PSX_MAT((mat)->m[XZ]); \
00127     (matPSX)->m[Z][Y] = PSX_MAT((mat)->m[YZ]); \
00128     (matPSX)->m[Z][Z] = PSX_MAT((mat)->m[ZZ]); \
00129   }
00130 
00131 #define PSXVector(/*VEC * */vec, /*VECTOR * */ vecPSX) \
00132   { \
00133     (vecPSX)->vx = PSX_LENGTH((vec)->v[X]); \
00134     (vecPSX)->vy = PSX_LENGTH((vec)->v[Y]); \
00135     (vecPSX)->vz = PSX_LENGTH((vec)->v[Z]); \
00136   }
00137 
00138 #endif
00139 
00141 // Pi and related constants
00143 
00144 #ifdef _PSX
00145 
00146 #define PI 205887L
00147 #define RAD (PI * 2)
00148 #define FULL_CIRCLE (ONE)
00149 
00150 
00151 #else // _PSX
00152 
00153 #define PI 3.141592654f
00154 #define RAD (PI * 2)
00155 #define FULL_CIRCLE (PI * 2)
00156 
00157 
00158 #endif
00159 
00160 
00162 // Other misc stuff
00164 
00165 #define FRICTION_TIME_SCALE   FROM_TIME(Real(120))
00166 
00167 
00168 
00169 #endif