1 | /* |
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2 | Copyright (c) 2005 Gino van den Bergen / Erwin Coumans http://continuousphysics.com |
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3 | |
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4 | Permission is hereby granted, free of charge, to any person or organization |
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5 | obtaining a copy of the software and accompanying documentation covered by |
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6 | this license (the "Software") to use, reproduce, display, distribute, |
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7 | execute, and transmit the Software, and to prepare derivative works of the |
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8 | Software, and to permit third-parties to whom the Software is furnished to |
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9 | do so, all subject to the following: |
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10 | |
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11 | The copyright notices in the Software and this entire statement, including |
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12 | the above license grant, this restriction and the following disclaimer, |
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13 | must be included in all copies of the Software, in whole or in part, and |
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14 | all derivative works of the Software, unless such copies or derivative |
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15 | works are solely in the form of machine-executable object code generated by |
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16 | a source language processor. |
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17 | |
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18 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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19 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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20 | FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
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21 | SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
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22 | FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
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23 | ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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24 | DEALINGS IN THE SOFTWARE. |
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25 | */ |
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26 | |
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27 | |
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28 | #ifndef IDEBUG_DRAW__H |
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29 | #define IDEBUG_DRAW__H |
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30 | |
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31 | #include "btVector3.h" |
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32 | #include "btTransform.h" |
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33 | |
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34 | |
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35 | ///The btIDebugDraw interface class allows hooking up a debug renderer to visually debug simulations. |
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36 | ///Typical use case: create a debug drawer object, and assign it to a btCollisionWorld or btDynamicsWorld using setDebugDrawer and call debugDrawWorld. |
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37 | ///A class that implements the btIDebugDraw interface has to implement the drawLine method at a minimum. |
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38 | class btIDebugDraw |
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39 | { |
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40 | public: |
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41 | |
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42 | enum DebugDrawModes |
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43 | { |
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44 | DBG_NoDebug=0, |
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45 | DBG_DrawWireframe = 1, |
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46 | DBG_DrawAabb=2, |
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47 | DBG_DrawFeaturesText=4, |
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48 | DBG_DrawContactPoints=8, |
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49 | DBG_NoDeactivation=16, |
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50 | DBG_NoHelpText = 32, |
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51 | DBG_DrawText=64, |
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52 | DBG_ProfileTimings = 128, |
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53 | DBG_EnableSatComparison = 256, |
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54 | DBG_DisableBulletLCP = 512, |
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55 | DBG_EnableCCD = 1024, |
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56 | DBG_DrawConstraints = (1 << 11), |
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57 | DBG_DrawConstraintLimits = (1 << 12), |
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58 | DBG_MAX_DEBUG_DRAW_MODE |
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59 | }; |
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60 | |
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61 | virtual ~btIDebugDraw() {}; |
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62 | |
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63 | virtual void drawLine(const btVector3& from,const btVector3& to, const btVector3& fromColor, const btVector3& toColor) |
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64 | { |
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65 | drawLine (from, to, fromColor); |
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66 | } |
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67 | |
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68 | virtual void drawBox (const btVector3& boxMin, const btVector3& boxMax, const btVector3& color, btScalar alpha) |
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69 | { |
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70 | } |
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71 | |
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72 | virtual void drawSphere (const btVector3& p, btScalar radius, const btVector3& color) |
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73 | { |
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74 | } |
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75 | |
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76 | virtual void drawLine(const btVector3& from,const btVector3& to,const btVector3& color)=0; |
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77 | |
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78 | virtual void drawTriangle(const btVector3& v0,const btVector3& v1,const btVector3& v2,const btVector3& /*n0*/,const btVector3& /*n1*/,const btVector3& /*n2*/,const btVector3& color, btScalar alpha) |
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79 | { |
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80 | drawTriangle(v0,v1,v2,color,alpha); |
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81 | } |
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82 | virtual void drawTriangle(const btVector3& v0,const btVector3& v1,const btVector3& v2,const btVector3& color, btScalar /*alpha*/) |
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83 | { |
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84 | drawLine(v0,v1,color); |
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85 | drawLine(v1,v2,color); |
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86 | drawLine(v2,v0,color); |
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87 | } |
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88 | |
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89 | virtual void drawContactPoint(const btVector3& PointOnB,const btVector3& normalOnB,btScalar distance,int lifeTime,const btVector3& color)=0; |
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90 | |
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91 | virtual void reportErrorWarning(const char* warningString) = 0; |
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92 | |
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93 | virtual void draw3dText(const btVector3& location,const char* textString) = 0; |
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94 | |
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95 | virtual void setDebugMode(int debugMode) =0; |
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96 | |
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97 | virtual int getDebugMode() const = 0; |
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98 | |
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99 | inline void drawAabb(const btVector3& from,const btVector3& to,const btVector3& color) |
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100 | { |
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101 | |
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102 | btVector3 halfExtents = (to-from)* 0.5f; |
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103 | btVector3 center = (to+from) *0.5f; |
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104 | int i,j; |
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105 | |
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106 | btVector3 edgecoord(1.f,1.f,1.f),pa,pb; |
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107 | for (i=0;i<4;i++) |
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108 | { |
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109 | for (j=0;j<3;j++) |
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110 | { |
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111 | pa = btVector3(edgecoord[0]*halfExtents[0], edgecoord[1]*halfExtents[1], |
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112 | edgecoord[2]*halfExtents[2]); |
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113 | pa+=center; |
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114 | |
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115 | int othercoord = j%3; |
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116 | edgecoord[othercoord]*=-1.f; |
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117 | pb = btVector3(edgecoord[0]*halfExtents[0], edgecoord[1]*halfExtents[1], |
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118 | edgecoord[2]*halfExtents[2]); |
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119 | pb+=center; |
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120 | |
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121 | drawLine(pa,pb,color); |
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122 | } |
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123 | edgecoord = btVector3(-1.f,-1.f,-1.f); |
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124 | if (i<3) |
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125 | edgecoord[i]*=-1.f; |
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126 | } |
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127 | } |
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128 | void drawTransform(const btTransform& transform, btScalar orthoLen) |
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129 | { |
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130 | btVector3 start = transform.getOrigin(); |
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131 | drawLine(start, start+transform.getBasis() * btVector3(orthoLen, 0, 0), btVector3(0.7f,0,0)); |
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132 | drawLine(start, start+transform.getBasis() * btVector3(0, orthoLen, 0), btVector3(0,0.7f,0)); |
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133 | drawLine(start, start+transform.getBasis() * btVector3(0, 0, orthoLen), btVector3(0,0,0.7f)); |
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134 | } |
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135 | |
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136 | void drawArc(const btVector3& center, const btVector3& normal, const btVector3& axis, btScalar radiusA, btScalar radiusB, btScalar minAngle, btScalar maxAngle, |
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137 | const btVector3& color, bool drawSect, btScalar stepDegrees = btScalar(10.f)) |
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138 | { |
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139 | const btVector3& vx = axis; |
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140 | btVector3 vy = normal.cross(axis); |
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141 | btScalar step = stepDegrees * SIMD_RADS_PER_DEG; |
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142 | int nSteps = (int)((maxAngle - minAngle) / step); |
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143 | if(!nSteps) nSteps = 1; |
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144 | btVector3 prev = center + radiusA * vx * btCos(minAngle) + radiusB * vy * btSin(minAngle); |
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145 | if(drawSect) |
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146 | { |
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147 | drawLine(center, prev, color); |
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148 | } |
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149 | for(int i = 1; i <= nSteps; i++) |
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150 | { |
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151 | btScalar angle = minAngle + (maxAngle - minAngle) * btScalar(i) / btScalar(nSteps); |
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152 | btVector3 next = center + radiusA * vx * btCos(angle) + radiusB * vy * btSin(angle); |
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153 | drawLine(prev, next, color); |
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154 | prev = next; |
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155 | } |
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156 | if(drawSect) |
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157 | { |
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158 | drawLine(center, prev, color); |
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159 | } |
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160 | } |
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161 | void drawSpherePatch(const btVector3& center, const btVector3& up, const btVector3& axis, btScalar radius, |
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162 | btScalar minTh, btScalar maxTh, btScalar minPs, btScalar maxPs, const btVector3& color, btScalar stepDegrees = btScalar(10.f)) |
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163 | { |
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164 | btVector3 vA[74]; |
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165 | btVector3 vB[74]; |
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166 | btVector3 *pvA = vA, *pvB = vB, *pT; |
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167 | btVector3 npole = center + up * radius; |
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168 | btVector3 spole = center - up * radius; |
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169 | btVector3 arcStart; |
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170 | btScalar step = stepDegrees * SIMD_RADS_PER_DEG; |
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171 | const btVector3& kv = up; |
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172 | const btVector3& iv = axis; |
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173 | btVector3 jv = kv.cross(iv); |
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174 | bool drawN = false; |
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175 | bool drawS = false; |
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176 | if(minTh <= -SIMD_HALF_PI) |
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177 | { |
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178 | minTh = -SIMD_HALF_PI + step; |
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179 | drawN = true; |
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180 | } |
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181 | if(maxTh >= SIMD_HALF_PI) |
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182 | { |
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183 | maxTh = SIMD_HALF_PI - step; |
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184 | drawS = true; |
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185 | } |
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186 | if(minTh > maxTh) |
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187 | { |
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188 | minTh = -SIMD_HALF_PI + step; |
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189 | maxTh = SIMD_HALF_PI - step; |
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190 | drawN = drawS = true; |
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191 | } |
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192 | int n_hor = (int)((maxTh - minTh) / step) + 1; |
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193 | if(n_hor < 2) n_hor = 2; |
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194 | btScalar step_h = (maxTh - minTh) / btScalar(n_hor - 1); |
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195 | bool isClosed = false; |
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196 | if(minPs > maxPs) |
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197 | { |
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198 | minPs = -SIMD_PI + step; |
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199 | maxPs = SIMD_PI; |
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200 | isClosed = true; |
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201 | } |
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202 | else if((maxPs - minPs) >= SIMD_PI * btScalar(2.f)) |
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203 | { |
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204 | isClosed = true; |
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205 | } |
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206 | else |
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207 | { |
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208 | isClosed = false; |
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209 | } |
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210 | int n_vert = (int)((maxPs - minPs) / step) + 1; |
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211 | if(n_vert < 2) n_vert = 2; |
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212 | btScalar step_v = (maxPs - minPs) / btScalar(n_vert - 1); |
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213 | for(int i = 0; i < n_hor; i++) |
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214 | { |
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215 | btScalar th = minTh + btScalar(i) * step_h; |
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216 | btScalar sth = radius * btSin(th); |
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217 | btScalar cth = radius * btCos(th); |
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218 | for(int j = 0; j < n_vert; j++) |
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219 | { |
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220 | btScalar psi = minPs + btScalar(j) * step_v; |
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221 | btScalar sps = btSin(psi); |
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222 | btScalar cps = btCos(psi); |
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223 | pvB[j] = center + cth * cps * iv + cth * sps * jv + sth * kv; |
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224 | if(i) |
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225 | { |
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226 | drawLine(pvA[j], pvB[j], color); |
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227 | } |
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228 | else if(drawS) |
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229 | { |
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230 | drawLine(spole, pvB[j], color); |
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231 | } |
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232 | if(j) |
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233 | { |
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234 | drawLine(pvB[j-1], pvB[j], color); |
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235 | } |
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236 | else |
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237 | { |
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238 | arcStart = pvB[j]; |
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239 | } |
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240 | if((i == (n_hor - 1)) && drawN) |
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241 | { |
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242 | drawLine(npole, pvB[j], color); |
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243 | } |
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244 | if(isClosed) |
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245 | { |
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246 | if(j == (n_vert-1)) |
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247 | { |
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248 | drawLine(arcStart, pvB[j], color); |
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249 | } |
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250 | } |
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251 | else |
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252 | { |
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253 | if(((!i) || (i == (n_hor-1))) && ((!j) || (j == (n_vert-1)))) |
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254 | { |
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255 | drawLine(center, pvB[j], color); |
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256 | } |
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257 | } |
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258 | } |
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259 | pT = pvA; pvA = pvB; pvB = pT; |
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260 | } |
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261 | } |
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262 | |
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263 | void drawBox(const btVector3& bbMin, const btVector3& bbMax, const btVector3& color) |
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264 | { |
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265 | drawLine(btVector3(bbMin[0], bbMin[1], bbMin[2]), btVector3(bbMax[0], bbMin[1], bbMin[2]), color); |
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266 | drawLine(btVector3(bbMax[0], bbMin[1], bbMin[2]), btVector3(bbMax[0], bbMax[1], bbMin[2]), color); |
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267 | drawLine(btVector3(bbMax[0], bbMax[1], bbMin[2]), btVector3(bbMin[0], bbMax[1], bbMin[2]), color); |
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268 | drawLine(btVector3(bbMin[0], bbMax[1], bbMin[2]), btVector3(bbMin[0], bbMin[1], bbMin[2]), color); |
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269 | drawLine(btVector3(bbMin[0], bbMin[1], bbMin[2]), btVector3(bbMin[0], bbMin[1], bbMax[2]), color); |
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270 | drawLine(btVector3(bbMax[0], bbMin[1], bbMin[2]), btVector3(bbMax[0], bbMin[1], bbMax[2]), color); |
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271 | drawLine(btVector3(bbMax[0], bbMax[1], bbMin[2]), btVector3(bbMax[0], bbMax[1], bbMax[2]), color); |
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272 | drawLine(btVector3(bbMin[0], bbMax[1], bbMin[2]), btVector3(bbMin[0], bbMax[1], bbMax[2]), color); |
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273 | drawLine(btVector3(bbMin[0], bbMin[1], bbMax[2]), btVector3(bbMax[0], bbMin[1], bbMax[2]), color); |
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274 | drawLine(btVector3(bbMax[0], bbMin[1], bbMax[2]), btVector3(bbMax[0], bbMax[1], bbMax[2]), color); |
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275 | drawLine(btVector3(bbMax[0], bbMax[1], bbMax[2]), btVector3(bbMin[0], bbMax[1], bbMax[2]), color); |
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276 | drawLine(btVector3(bbMin[0], bbMax[1], bbMax[2]), btVector3(bbMin[0], bbMin[1], bbMax[2]), color); |
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277 | } |
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278 | void drawBox(const btVector3& bbMin, const btVector3& bbMax, const btTransform& trans, const btVector3& color) |
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279 | { |
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280 | drawLine(trans * btVector3(bbMin[0], bbMin[1], bbMin[2]), trans * btVector3(bbMax[0], bbMin[1], bbMin[2]), color); |
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281 | drawLine(trans * btVector3(bbMax[0], bbMin[1], bbMin[2]), trans * btVector3(bbMax[0], bbMax[1], bbMin[2]), color); |
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282 | drawLine(trans * btVector3(bbMax[0], bbMax[1], bbMin[2]), trans * btVector3(bbMin[0], bbMax[1], bbMin[2]), color); |
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283 | drawLine(trans * btVector3(bbMin[0], bbMax[1], bbMin[2]), trans * btVector3(bbMin[0], bbMin[1], bbMin[2]), color); |
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284 | drawLine(trans * btVector3(bbMin[0], bbMin[1], bbMin[2]), trans * btVector3(bbMin[0], bbMin[1], bbMax[2]), color); |
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285 | drawLine(trans * btVector3(bbMax[0], bbMin[1], bbMin[2]), trans * btVector3(bbMax[0], bbMin[1], bbMax[2]), color); |
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286 | drawLine(trans * btVector3(bbMax[0], bbMax[1], bbMin[2]), trans * btVector3(bbMax[0], bbMax[1], bbMax[2]), color); |
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287 | drawLine(trans * btVector3(bbMin[0], bbMax[1], bbMin[2]), trans * btVector3(bbMin[0], bbMax[1], bbMax[2]), color); |
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288 | drawLine(trans * btVector3(bbMin[0], bbMin[1], bbMax[2]), trans * btVector3(bbMax[0], bbMin[1], bbMax[2]), color); |
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289 | drawLine(trans * btVector3(bbMax[0], bbMin[1], bbMax[2]), trans * btVector3(bbMax[0], bbMax[1], bbMax[2]), color); |
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290 | drawLine(trans * btVector3(bbMax[0], bbMax[1], bbMax[2]), trans * btVector3(bbMin[0], bbMax[1], bbMax[2]), color); |
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291 | drawLine(trans * btVector3(bbMin[0], bbMax[1], bbMax[2]), trans * btVector3(bbMin[0], bbMin[1], bbMax[2]), color); |
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292 | } |
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293 | }; |
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294 | |
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295 | |
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296 | #endif //IDEBUG_DRAW__H |
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297 | |
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