使用C++制作3D动画人物-100%提供源码

/*************************************************************/ /* MS3D.CPP */ /* */ /* Purpose: Implementation of CMs3d for Milkshape 3D MS3D */ /* files (http://www.swissquake.ch/chumbalum-soft) */ /* Evan Pipho (evan@codershq.com) */ /* */ /*************************************************************/ #include "../basecode/app.h" #include "ms3d.h" //------------------------------------------------------------- //- Load //- Loads an MS3D file into memory //------------------------------------------------------------- bool CMs3d::Load(const char * szFilename) { unsigned char * ucpBuffer = 0; unsigned char * ucpPtr = 0; //Open the file FILE * f = fopen(szFilename, "rb"); if(!f) { APP->Log(COLOR_RED, "Could not open %s", szFilename); return false; } //Get file size fseek(f, 0, SEEK_END); int iEnd = ftell(f); fseek(f, 0, SEEK_SET); int iStart = ftell(f); unsigned int uiSize = iEnd - iStart; //Allocate memory ucpBuffer = new unsigned char[uiSize]; ucpPtr = ucpBuffer; if(!ucpBuffer) { APP->Log(COLOR_RED, "Could not allocate memory"); return false; } //Read file into buffer if(fread(ucpBuffer, 1, uiSize, f) != uiSize) { APP->Log(COLOR_RED, "Could not read %s", szFilename); delete [] ucpBuffer; return false; } //Check out the header, it should be 10 bytes, MS3D000000 if(memcmp(ucpPtr, "MS3D000000", 10) != 0) { APP->Log(COLOR_RED, "%s is not a valid Milkshape 3D file", szFilename); delete [] ucpBuffer; return false; } //Check the version (should be 3 or 4) ucpPtr += 10; if(*(int *)ucpPtr != 3 && *(int *)ucpPtr != 4) { APP->Log(COLOR_RED, "%s is the wrong version, should be 3 or 4", szFilename); delete [] ucpBuffer; return false; } ucpPtr += 4; //Read the vertices //Number of vertices m_usNumVerts = *(unsigned short *)ucpPtr; ucpPtr += 2; //Allocate memory m_pVertices = new SMs3dVertex[m_usNumVerts]; //Copy the vertices memcpy(m_pVertices, ucpPtr, m_usNumVerts * sizeof(SMs3dVertex)); ucpPtr += m_usNumVerts * sizeof(SMs3dVertex); //Read the triangles m_usNumTriangles = *(unsigned short *)ucpPtr; ucpPtr += 2; //Alloc memory for triangles m_pTriangles = new SMs3dTriangle[m_usNumTriangles]; //Copy triangles memcpy(m_pTriangles, ucpPtr, m_usNumTriangles * sizeof(SMs3dTriangle)); ucpPtr += m_usNumTriangles * sizeof(SMs3dTriangle); //Load mesh groups m_usNumMeshes = *(unsigned short *)ucpPtr; ucpPtr += 2; //Alloc memory for the mesh data m_pMeshes = new SMs3dMesh[m_usNumMeshes]; //Copy the mesh data for(int x = 0; x < m_usNumMeshes; x++) { //Copy the first part of the data memcpy(&m_pMeshes[x], ucpPtr, 35); ucpPtr += 35; //Allocate triangle index memory m_pMeshes[x].m_uspIndices = new unsigned short[m_pMeshes[x].m_usNumTris]; //Copy triangle index data, plus the material index memcpy(m_pMeshes[x].m_uspIndices, ucpPtr, m_pMeshes[x].m_usNumTris * 2); ucpPtr += m_pMeshes[x].m_usNumTris * 2; m_pMeshes[x].m_cMaterial = ucpPtr[0]; ucpPtr ++; } //Read material information m_usNumMaterials = *(unsigned short *)ucpPtr; ucpPtr += 2; //Alloc memory m_pMaterials = new SMs3dMaterial[m_usNumMaterials]; //Copy material information for(x = 0; x < m_usNumMaterials; x++) { memcpy(&m_pMaterials[x], ucpPtr, 361); ucpPtr += 361; //Load the images if(m_pMaterials[x].m_cTexture[0] != '\0') { m_pMaterials[x].m_Texture.Load(&m_pMaterials[x].m_cTexture[2]); } } //Skip some data we do not need ucpPtr += 4; ucpPtr += 8; //Read in joint and animation info m_usNumJoints = *(unsigned short *)ucpPtr; ucpPtr += 2; //Allocate memory m_pJoints = new SMs3dJoint[m_usNumJoints]; //Read in joint info for(x = 0; x < m_usNumJoints; x++) { memcpy(&m_pJoints[x], ucpPtr, 93); ucpPtr += 93; //Allocate memory m_pJoints[x].m_RotKeyFrames = new SMs3dKeyFrame[m_pJoints[x].m_usNumRotFrames]; m_pJoints[x].m_TransKeyFrames = new SMs3dKeyFrame[m_pJoints[x].m_usNumTransFrames]; //copy keyframe information memcpy(m_pJoints[x].m_RotKeyFrames, ucpPtr, m_pJoints[x].m_usNumRotFrames * sizeof(SMs3dKeyFrame)); ucpPtr += m_pJoints[x].m_usNumRotFrames * sizeof(SMs3dKeyFrame); memcpy(m_pJoints[x].m_TransKeyFrames, ucpPtr, m_pJoints[x].m_usNumTransFrames * sizeof(SMs3dKeyFrame)); ucpPtr += m_pJoints[x].m_usNumTransFrames * sizeof(SMs3dKeyFrame); } //Find the parent joint array indices for(x = 0; x < m_usNumJoints; x++) { //If the bone has a parent if(m_pJoints[x].m_cParent[0] != '\0') { //Compare names of theparent bone of x with the names of all bones for(int y = 0; y < m_usNumJoints; y++) { //A match has been found if(strcmp(m_pJoints[y].m_cName, m_pJoints[x].m_cParent) == 0) { m_pJoints[x].m_sParent = y; } } } //The bone has no parent else { m_pJoints[x].m_sParent = -1; } } //Setup joints Setup(); //File loaded delete [] ucpBuffer; APP->Log(COLOR_GREEN, "MS3D File: %s Loaded", szFilename); return true; } //------------------------------------------------------------- //- Render //- Renders the model in its position at time 0 //------------------------------------------------------------- void CMs3d::Render() { //Note: This function really isn't needed, as it preforms the same basic function // as the render function below. It is included to provide an implementation of the // Render() function put forth in the CModel class. Animate(1.0f, 0.0f, 0.0f, false); } //------------------------------------------------------------- //- Render //- Renders the model as it would be at time "fTime" (in seconds) //------------------------------------------------------------- void CMs3d::Render(float fTime) { Animate(1.0f, fTime, fTime, false); } //------------------------------------------------------------- //- Animate //- Animates the model from start time to end time (in seconds) //- at specified speed and can loop //------------------------------------------------------------- void CMs3d::Animate(float fSpeed, float fStartTime, float fEndTime, bool bLoop) { static bool bFirstTime = true; //First time animate has been called if(bFirstTime) { Reset(); bFirstTime = false; } static float fLastTime = fStartTime; float fTime = m_Timer.GetSeconds() * fSpeed; fTime += fLastTime; fLastTime = fTime; //looping if(fTime > fEndTime) { if(bLoop) { Reset(); fLastTime = fStartTime; fTime = fStartTime; } else fTime = fEndTime; } for(int x = 0; x < m_usNumJoints; x++) { //Transformation matrix CMatrix4X4 matTmp; //Current joint SMs3dJoint * pJoint = &m_pJoints[x]; //Current frame unsigned int uiFrame = 0; //if there are no keyframes, don't do any transformations if(pJoint->m_usNumRotFrames == 0 && pJoint->m_TransKeyFrames == 0) { pJoint->m_matFinal = pJoint->m_matAbs; continue; } //Calculate the current frame //Translation while(uiFrame < pJoint->m_usNumTransFrames && pJoint->m_TransKeyFrames[uiFrame].m_fTime < fTime) uiFrame++; pJoint->m_usCurTransFrame = uiFrame; float fTranslation[3]; float fDeltaT = 1; float fInterp = 0; //If its at the extremes if(uiFrame == 0) memcpy(fTranslation, pJoint->m_TransKeyFrames[0].m_fParam, sizeof(float[3])); else if(uiFrame == pJoint->m_usNumTransFrames) memcpy(fTranslation, pJoint->m_TransKeyFrames[uiFrame-1].m_fParam, sizeof(float[3])); //If its in the middle of two frames else { SMs3dKeyFrame * pkCur = &pJoint->m_TransKeyFrames[uiFrame]; SMs3dKeyFrame * pkPrev = &pJoint->m_