bool Cboard::init(float width,float height,string imagePath){
m_width=width;
m_height=height;
//--texture
Cc3dTexture*texture=Cc3dTextureCache::sharedTextureCache()->addImage(imagePath,GL_CLAMP_TO_EDGE,GL_CLAMP_TO_EDGE);
//meshes
{
//----subMesh
Cc3dSubMesh* subMesh=new Cc3dSubMesh();
subMesh->autorelease();
//--color
Cc3dVector4 color[4]={Cc3dVector4(1,1,1,1),Cc3dVector4(1,1,1,1),Cc3dVector4(1,1,1,1),Cc3dVector4(1,1,1,1)};
//--vertex
//front face
subMesh->addVertex(Cc3dVertex(Cc3dVector4(-width/2,+height/2,0,1),Cc3dVector2(0,0),Cc3dVector4(0,0,1,0),color[0]));//0
subMesh->addVertex(Cc3dVertex(Cc3dVector4(-width/2,-height/2,0,1),Cc3dVector2(0,1),Cc3dVector4(0,0,1,0),color[1]));//1
subMesh->addVertex(Cc3dVertex(Cc3dVector4(+width/2,-height/2,0,1),Cc3dVector2(1,1),Cc3dVector4(0,0,1,0),color[2]));//2
subMesh->addVertex(Cc3dVertex(Cc3dVector4(+width/2,+height/2,0,1),Cc3dVector2(1,0),Cc3dVector4(0,0,1,0),color[3]));//3
//--IDTriangles
//front face
subMesh->addIDtri(Cc3dIDTriangle(0,1,2));
subMesh->addIDtri(Cc3dIDTriangle(0,2,3));
//----mesh
Cc3dMesh*mesh=new Cc3dMesh();
mesh->autorelease();
mesh->addSubMesh(subMesh);
//----model
this->addMesh(mesh);
}
//----texture
this->getMeshByIndex(0)->getSubMeshByIndex(0)->setTexture(texture);
this->setIsDoDepthTest(false);
return true;
}
Cc3dVector2 toV2(const Cc3dVector4&v4){
return Cc3dVector2(v4.x(), v4.y());
}
void loadInfo_subMesh(Cc3dSubMesh*submesh,const string&meshFilePathShort,const string&texClipPathShort,float scale,Cc3dVector4 offsetVec)
//加载网格--abc
//scale为放缩系数，可以在导入时对顶点坐标进行等比方缩--abc
//offsetVec为偏移量（缩放以后的偏移量)，可在导入时对顶点坐标进行偏移--abc
//由于是等比放缩，所以法线和纹理坐标不受影响--abc
{
if(meshFilePathShort.empty()==false)assert(meshFilePathShort[(int)meshFilePathShort.size()-1]!='/');
if(texClipPathShort.empty()==false)assert(texClipPathShort[(int)texClipPathShort.size()-1]!='/');
assert(submesh->getSubMeshData()->isEmpty());
//------------------获得纹理文件夹相对路径--abc
string meshFileName_part1;//相对路径名，不包含文件名--abc
string meshFileName_part2;//文件名--abc
vector<string> rs=splitStrInTwoByLastBar(meshFilePathShort);
meshFileName_part1=rs[0];
meshFileName_part2=rs[1];
//------------------获得绝对路径--abc
string pathName=Cc3dFileUtils::sharedFileUtils()->getFullPath(meshFilePathShort);
//打开文件--abc
FILE *fp=NULL;
fp=fopen(pathName.c_str(),"r");
if(fp==NULL)
{
cout<<"Open "<<pathName<<" failed!"<<endl;
assert(false);
}
//------------------提取文件信息到submesh
{
//提取顶点数--abc
int nv;
fscanf(fp, "%d",&nv);
//提取各顶点--abc
for(int i=0;i<nv;i++){
//提取pos
float pos[4]={0,0,0,1};
fscanf(fp, "%f",&pos[0]);
fscanf(fp, "%f",&pos[1]);
fscanf(fp, "%f",&pos[2]);
//提取texCoord
float texCoord[2];
fscanf(fp, "%f",&texCoord[0]);
fscanf(fp, "%f",&texCoord[1]);
//提取norm
float norm[4]={0,0,0,0};
fscanf(fp, "%f",&norm[0]);
fscanf(fp, "%f",&norm[1]);
fscanf(fp, "%f",&norm[2]);
//将texCoord原点由左下角变为左上角--abc
texCoord[1]=1-texCoord[1];
//对顶点进行放缩--abc
Cc3dVector4 posWithScale=Cc3dVector4(pos)*scale;
posWithScale.setw(1);
//对缩放后的顶点进行偏移（注意，一定要放在缩放后面)
posWithScale=posWithScale+offsetVec;
//组成顶点--abc
Cc3dVertex vertex(posWithScale,Cc3dVector2(texCoord),Cc3dVector4(norm));
//将此顶点加入vlist
submesh->getSubMeshData()->addVertex(vertex);
}
//提取IDtri数--abc
int nIDtri;
fscanf(fp, "%d",&nIDtri);
//提取各IDtri
for(int i=0;i<nIDtri;i++){
Cc3dIDTriangle IDtri;
//提取ID0,ID1,ID2
fscanf(fp, "%d",&IDtri.vID[0]);
fscanf(fp, "%d",&IDtri.vID[1]);
fscanf(fp, "%d",&IDtri.vID[2]);
submesh->getSubMeshData()->addIDtri(IDtri);
}
//提取纹理图片名并加载纹理--abc
{
char t_imageName[1024];
fscanf(fp, "%s",t_imageName);
//将texFileName的后缀名改成.png
string part1,part2;
vector<string> rs=splitStrInTwoByLastDotBehindLastBar(t_imageName);
part1=rs[0];
part2=rs[1];
string imageName=part1+".png";
//生成相对路径--abc
string texPathName=texClipPathShort+"/"+imageName;
//根据纹理图片路径加载纹理，并将纹理句柄存入submesh
submesh->setTexture(Cc3dTextureCache::sharedTextureCache()->addImage(texPathName.c_str()));
}
//提取backVisible
char buffer[1024]={0};
int backVisible;
fscanf(fp, "%s",buffer);
fscanf(fp, "%d",&backVisible);
if(backVisible){
submesh->setCullFace(ec3dNotCull);
}else{
submesh->setCullFace(ec3dCullBack);
}
}
//关闭文件--abc
fclose(fp);
}
Cc3dMeshData*genSampleCubeWithCode(float cx,float cy,float cz,float dx,float dy,float dz,
float k_s,
float k_t,
int cubUVMode)
//用代码生成示例立方体
//cx,cy,cz为中心
//dx,dy,dz分别为x,y,z方向上的边心距
{
Cc3dMeshData*meshData=new Cc3dMeshData();
meshData->init();
meshData->autorelease();
meshData->vlist.reserve(8);
meshData->IDtriList.reserve(12);
//----生成顶点数据
Cc3dVertex tv;
//前面
tv.setPos(Cc3dVector3(cx-dx, cy-dy,cz+dz));tv.setTexCoord(Cc3dVector2(0, 0));tv.setNorm(Cc3dVector3(0, 0, 1));//0
meshData->vlist.push_back(tv);
tv.setPos(Cc3dVector3(cx+dx, cy-dy,cz+dz));tv.setTexCoord(Cc3dVector2(1, 0));tv.setNorm(Cc3dVector3(0, 0, 1));//1
meshData->vlist.push_back(tv);
tv.setPos(Cc3dVector3(cx+dx, cy+dy, cz+dz));tv.setTexCoord(Cc3dVector2(1, 1));tv.setNorm(Cc3dVector3(0, 0, 1));//2
meshData->vlist.push_back(tv);
tv.setPos(Cc3dVector3(cx-dx, cy+dy, cz+dz));tv.setTexCoord(Cc3dVector2(0, 1));tv.setNorm(Cc3dVector3(0, 0, 1));//3
meshData->vlist.push_back(tv);
//后面
tv.setPos(Cc3dVector3(cx-dx, cy-dy,cz -dz));tv.setTexCoord(Cc3dVector2(0, 0));tv.setNorm(Cc3dVector3(0, 0, -1));//4
meshData->vlist.push_back(tv);
tv.setPos(Cc3dVector3(cx+dx, cy-dy, cz-dz));tv.setTexCoord(Cc3dVector2(1, 0));tv.setNorm(Cc3dVector3(0, 0, -1));//5
meshData->vlist.push_back(tv);
tv.setPos(Cc3dVector3(cx+dx, cy+dy, cz-dz));tv.setTexCoord(Cc3dVector2(1, 1));tv.setNorm(Cc3dVector3(0, 0, -1));//6
meshData->vlist.push_back(tv);
tv.setPos(cx-dx, cy+dy, cz-dz);tv.setTexCoord(0, 1);tv.setNorm(0, 0, -1);//7
meshData->vlist.push_back(tv);
//上面
tv.setPos(cx-dx, cy+dy, cz+dz);tv.setTexCoord(0, 0);tv.setNorm(0, 1, 0);//8
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy+dy, cz+dz);tv.setTexCoord(1, 0);tv.setNorm(0, 1, 0);//9
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy+dy, cz-dz);tv.setTexCoord(1, 1);tv.setNorm(0, 1, 0);//10
meshData->vlist.push_back(tv);
tv.setPos(cx-dx, cy+dy, cz-dz);tv.setTexCoord(0, 1);tv.setNorm(0, 1, 0);//11
meshData->vlist.push_back(tv);
//下面
tv.setPos(cx-dx, cy-dy, cz+dz);tv.setTexCoord(0, 0);tv.setNorm(0, -1, 0);//12
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy-dy, cz+dz);tv.setTexCoord(1, 0);tv.setNorm(0, -1, 0);//13
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy-dy, cz-dz);tv.setTexCoord(1, 1);tv.setNorm(0, -1, 0);//14
meshData->vlist.push_back(tv);
tv.setPos(cx-dx, cy-dy, cz-dz);tv.setTexCoord(0, 1);tv.setNorm(0, -1, 0);//15
meshData->vlist.push_back(tv);
//左面
tv.setPos(cx-dx, cy-dy,cz -dz);tv.setTexCoord(0, 0);tv.setNorm(-1, 0, 0);//16
meshData->vlist.push_back(tv);
tv.setPos(cx-dx, cy-dy, cz+dz);tv.setTexCoord(1, 0);tv.setNorm(-1, 0, 0);//17
meshData->vlist.push_back(tv);
tv.setPos(cx-dx, cy+dy, cz+dz);tv.setTexCoord(1, 1);tv.setNorm(-1, 0, 0);//18
meshData->vlist.push_back(tv);
tv.setPos(cx-dx, cy+dy, cz-dz);tv.setTexCoord(0, 1);tv.setNorm(-1, 0, 0);//19
meshData->vlist.push_back(tv);
//右面
tv.setPos(cx+dx, cy-dy, cz-dz);tv.setTexCoord(0, 0);tv.setNorm(1, 0, 0);//20
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy-dy,cz+ dz);tv.setTexCoord(1, 0);tv.setNorm(1, 0, 0);//21
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy+dy, cz+dz);tv.setTexCoord(1, 1);tv.setNorm(1, 0, 0);//22
meshData->vlist.push_back(tv);
tv.setPos(cx+dx, cy+dy, cz-dz);tv.setTexCoord(0, 1);tv.setNorm(1, 0, 0);//23
meshData->vlist.push_back(tv);
//----生成索引三角形
Cc3dIDTriangle tIDtri;
//前面
tIDtri.setvID(0, 1, 2);
meshData->IDtriList.push_back(tIDtri);
tIDtri.setvID(0, 2, 3);
meshData->IDtriList.push_back(tIDtri);
//后面
tIDtri.setvID(4, 6, 5);
meshData->IDtriList.push_back(tIDtri);
tIDtri.setvID(4, 7, 6);
meshData->IDtriList.push_back(tIDtri);
//上面
tIDtri.setvID(8, 9, 10);
meshData->IDtriList.push_back(tIDtri);
tIDtri.setvID(8, 10, 11);
meshData->IDtriList.push_back(tIDtri);
//下面
tIDtri.setvID(12, 14, 13);
meshData->IDtriList.push_back(tIDtri);
tIDtri.setvID(12, 15, 14);
meshData->IDtriList.push_back(tIDtri);
//左面
tIDtri.setvID(16, 17, 18);
meshData->IDtriList.push_back(tIDtri);
tIDtri.setvID(16, 18, 19);
meshData->IDtriList.push_back(tIDtri);
//右面
tIDtri.setvID(20, 22, 21);
meshData->IDtriList.push_back(tIDtri);
tIDtri.setvID(20, 23, 22);
meshData->IDtriList.push_back(tIDtri);
//----重新计算各三角形各顶点的uv
int nv=(int)meshData->vlist.size();
vector<bool> markList(nv);//标记各顶点是否已经重计算过uv，避免多次计算（多次计算可能导致出错）,初始全0
int nIDtri=(int)meshData->IDtriList.size();
for(int i=0;i<nIDtri;i++){
Cc3dIDTriangle&IDtri=meshData->IDtriList[i];
//重新计算IDtri各顶点的uv
switch(cubUVMode)
{
case cubUVMode_FITFACE:
{
//将IDtri中未mark的顶点的uv分别乘以k_s,k_t
for(int j=0;j<3;j++){
int vID=IDtri.vID[j];//顶点号
if(markList[vID]==false){//未计算过
//重新计算
Cc3dVertex&v=meshData->vlist[vID];
Cc3dVector2 texCoord=v.getTexCoord();
texCoord.setx(texCoord.x()*k_s);
texCoord.sety(texCoord.y()*k_t);
v.setTexCoord(texCoord);
markList[vID]=true;//标记为已计算
}
}
}break;
case cubUVMode_UNIFORM:
{
//将IDtri各顶点的uv，重新按顶点坐标来计算，并以k_s,k_t放缩
//判断IDtri的类型
const int type_LR=0;//左或右
const int type_UD=1;//上或下
const int type_FB=2;//前或后
int type=0;
Cc3dVector3 norm=meshData->vlist[IDtri.vID[0]].getNorm();
if(fabsf(fabsf(norm.x())-1)<0.01){//左面或右面
type=type_LR;
}else if(fabsf(fabsf(norm.y())-1)<0.01){//上面或下面
type=type_UD;
}else{//前面或后面
type=type_FB;
}//得到type
for(int j=0;j<3;j++){
int vID=IDtri.vID[j];//顶点号
if(markList[vID]==false){//未计算过
//重新计算
Cc3dVertex&v=meshData->vlist[vID];
switch (type) {
case type_LR:{
//用yz
Cc3dVector2 texCoord(v.getPos().y()*k_s,v.getPos().z()*k_t);
v.setTexCoord(texCoord);
}break;
case type_UD:{
//用xz
Cc3dVector2 texCoord(v.getPos().x()*k_s,v.getPos().z()*k_t);
v.setTexCoord(texCoord);
}break;
case type_FB:{
//用xy
Cc3dVector2 texCoord(v.getPos().x()*k_s,v.getPos().y()*k_t);
v.setTexCoord(texCoord);
}break;
}
//标记为已计算
markList[vID]=true;
}
}
}break;
default:
cout<<"error:未知的cubUV映射类型!"<<endl;
assert(false);
break;
}
}
return meshData;
}
Cc3dVector2 Cc3dVector3::toV2()const{
return Cc3dVector2(x(),y());
}
Cc3dVector2 getResolutionSize_plat(){
//由于iOS上凡640x1136分辨率者只有高清,所以这里只能假装是高清以便能够使用资源--abc
return Cc3dVector2(640,1136);
}
Cc3dVector2 getScreenSize_plat(){
return Cc3dVector2(640*0.5,1136*0.5);
}
