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15
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1
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2 // written in the D programming language
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3
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4 module chipmunkd.chipmunk_types;
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5
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6 //#ifdef __APPLE__
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7 // #import "TargetConditionals.h"
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8 //#endif
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9 //
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10 //#ifndef CP_USE_DOUBLES
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11 // // Use single precision floats on the iPhone.
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12 // #if TARGET_OS_IPHONE
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13 // #define CP_USE_DOUBLES 0
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14 // #else
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15 // // use doubles by default for higher precision
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16 // #define CP_USE_DOUBLES 1
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17 // #endif
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18 //#endif
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19 //
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20 version(CP_USE_DOUBLES){
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21 alias double cpFloat;
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22 //TODO:
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23 // #define cpfsqrt sqrt
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24 // #define cpfsin sin
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25 // #define cpfcos cos
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26 // #define cpfacos acos
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27 // #define cpfatan2 atan2
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28 // #define cpfmod fmod
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29 // #define cpfexp exp
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30 // #define cpfpow pow
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31 // #define cpffloor floor
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32 // #define cpfceil ceil
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33 }else{
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34 extern (C) nothrow {
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35 float sqrtf(float);
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36 float sinf(float);
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37 float cosf(float);
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38 float acosf(float);
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39 float atan2f(float,float);
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40 float fmodf(float,float);
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41 float expf(float);
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42 float powf(float,float);
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43 float floorf(float);
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44 float ceilf(float);
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45 }
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46
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47 alias float cpFloat;
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48
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49 alias sqrtf cpfsqrt;
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50 alias sinf cpfsin;
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51 alias cosf cpfcos;
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52 alias acosf cpfacos;
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53 alias atan2f cpfatan2;
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54 alias fmodf cpfmod;
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55 alias expf cpfexp;
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56 alias powf cpfpow;
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57 alias floorf cpffloor;
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58 alias ceilf cpfceil;
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59 }
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60
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61 static cpFloat
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62 cpfmax(cpFloat a, cpFloat b)
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63 {
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64 return (a > b) ? a : b;
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65 }
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66
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67 static cpFloat
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68 cpfmin(cpFloat a, cpFloat b)
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69 {
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70 return (a < b) ? a : b;
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71 }
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72
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73 static cpFloat
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74 cpfabs(cpFloat n)
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75 {
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76 return (n < 0) ? -n : n;
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77 }
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78
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79 static cpFloat
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80 cpfclamp(cpFloat f, cpFloat min, cpFloat max)
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81 {
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82 return cpfmin(cpfmax(f, min), max);
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83 }
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84
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85 static cpFloat
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86 cpflerp(cpFloat f1, cpFloat f2, cpFloat t)
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87 {
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88 return f1*(1.0f - t) + f2*t;
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89 }
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90
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91 static cpFloat
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92 cpflerpconst(cpFloat f1, cpFloat f2, cpFloat d)
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93 {
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94 return f1 + cpfclamp(f2 - f1, -d, d);
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95 }
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96
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97 //#if TARGET_OS_IPHONE
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98 // // CGPoints are structurally the same, and allow
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99 // // easy interoperability with other iPhone libraries
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100 // #import <CoreGraphics/CGGeometry.h>
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101 // typedef CGPoint cpVect;
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102 //#else
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103 struct cpVect{cpFloat x = 0; cpFloat y=0;}
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104 //#endif
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105
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106 alias uint cpHashValue;
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107
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108 // Oh C, how we love to define our own boolean types to get compiler compatibility
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109 //#ifdef CP_BOOL_TYPE
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110 // typedef CP_BOOL_TYPE cpBool;
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111 //#else
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112 alias bool cpBool;
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113 //#endif
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114
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115 //#ifndef cpTrue
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116 enum cpTrue = true;
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117 //#endif
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118
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119 //#ifndef cpFalse
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120 enum cpFalse = false;
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121 //#endif
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122
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123 //#ifdef CP_DATA_POINTER_TYPE
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124 // typedef CP_DATA_POINTER_TYPE cpDataPointer;
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125 //#else
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126 alias void * cpDataPointer;
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127 //#endif
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128
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129 //#ifdef CP_COLLISION_TYPE_TYPE
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130 // typedef CP_COLLISION_TYPE_TYPE cpCollisionType;
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131 //#else
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132 alias uint cpCollisionType;
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133 //#endif
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134
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135 //#ifdef CP_GROUP_TYPE
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136 // typedef CP_GROUP_TYPE cpGroup;
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137 //#else
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138 alias uint cpGroup;
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139 //#endif
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140
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141 //#ifdef CP_LAYERS_TYPE
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142 // typedef CP_GROUP_TYPE cpLayers;
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143 //#else
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144 alias uint cpLayers;
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145 //#endif
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146
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147 //#ifdef CP_TIMESTAMP_TYPE
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148 // typedef CP_TIMESTAMP_TYPE cpTimestamp;
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149 //#else
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150 alias uint cpTimestamp;
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151 //#endif
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152
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153 //#ifndef CP_NO_GROUP
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154 enum CP_NO_GROUP = 0;
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155 //#endif
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156
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157 //#ifndef CP_ALL_LAYERS
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158 enum CP_ALL_LAYERS = ~0;
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159 //#endif
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