Small problem with my code. Help!

Prads · 2010-07-12T00:05:43

Ok, I have wrote this code to generate floor for my game. Here's the code:void d3dLoadGraphics::gPlainTerrain(IDirect3DVertexBuffer9 *vBuff, IDirect3DIndexBuffer9 *iBuff, unsigned short int width, unsigned short int depth) { TDVertices *roadV; try { roadV = new TDVertices [width * depth]; } catch (std::exception& e) { MessageBox(NULL, e.what(), "Error", MB_ICONERROR); } unsigned int rIndex = 0; bool u = 0, v = 0; for(unsigned short int z = 0; z < depth; z++) { for(unsigned short int x = 0; x < width; x++) { roadV[rIndex].x = (float(x) * 15) - (float(width) * 15 / 2); roadV[rIndex].y = 0; roadV[rIndex].z = (float(z) * (-15)) + (float(width) * 15 / 2); roadV[rIndex].nx = 0; roadV[rIndex].ny = 1; roadV[rIndex].nz = 0; roadV[rIndex].u = u; roadV[rIndex].v = v; (u == 0) ? u = 1 : u = 0; rIndex++; } u = 0; (v == 0) ? v = 1 : v = 0; } void *pVData; vBuff->Lock(0, 0, &pVData, 0); memcpy(pVData, roadV, sizeof(roadV)); vBuff->Unlock(); delPointer<TDVertices*>(roadV); rIndex = 0; WORD *pIData; iBuff->Lock(0, 0, (void**)&pIData, 0); for(unsigned short int z = 0; z < depth - 1; z++) { for(unsigned short int x = 0; x < width - 1; x++) { pIData[rIndex] = (z * width) + x; pIData[rIndex + 1] = pIData[rIndex] + 1; pIData[rIndex + 2] = (z + 1) * width + x + 1; pIData[rIndex + 3] = pIData[rIndex + 2]; pIData[rIndex + 4] = pIData[rIndex + 2] - 1; pIData[rIndex + 5] = pIData[rIndex]; rIndex += 6; } } iBuff->Unlock();}Problem is with dynamic allocation of TDVertices structure. If I give say,TDVertices roadV[900];then the code works perfectly. But I need to dynamically allocate the struct. It won't give any exception either. Isn't 'int a[100]' same as 'int *roadV = new a[10 * 10]'? If yes, then why is my code not working?Can anyone help me please? Thanks!!!

Graphics and GPU Programming Programming

Started by Prads July 11, 2010 10:24 PM

9 comments, last by Prads 13 years, 9 months ago

Prads

139

Author

July 12, 2010 12:05 AM

Oh, that's wrong? I didn't know that. I use to do that all the time and it never gave me any error, lol until now... Thanks Buckeye for pointing it out!!!

My first 3D game: Click Here

Small problem with my code. Help!

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Small problem with my code. Help!

This topic is closed to new replies.

Popular Topics

Recommended Tutorials

Reticulating splines