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Can't add object to std::vector

Eriond · 2004-03-22T18:22:17

//******************** // Cube.h //******************** class Cube { public: Cube(); ~Cube(); bool Init(); bool Draw() const; private: class Vertex { public: Vertex() {} Vertex(const D3DXVECTOR3 &position_, const D3DCOLOR &color_) : position(position_), color(color_) {} D3DXVECTOR3 position; D3DCOLOR color; static const DWORD FVF; }; IDirect3DVertexBuffer9 *vertexBuffer; IDirect3DIndexBuffer9 *indexBuffer; D3DCOLOR color; float x, y, z; }; //******************** // Cube.cpp //******************** #include "Cube.h" Cube::Cube() : vertexBuffer(0), indexBuffer(0), color(D3DCOLOR_XRGB(0, 0, 0)), x(0), y(0), z(0) { } bool Cube::Init() { scene->GetDevice()->CreateVertexBuffer(24 * sizeof(Vertex), 0, Vertex::FVF, D3DPOOL_MANAGED, &vertexBuffer, 0); Vertex *vertices; vertexBuffer->Lock(0, 0, reinterpret_cast<void **> (&vertices), 0); //front vertices[0] = Vertex(D3DXVECTOR3(-1.0f, -1.0f, -1.0f), color); vertices[1] = Vertex(D3DXVECTOR3(-1.0f, 1.0f, -1.0f), color); vertices[2] = Vertex(D3DXVECTOR3(1.0f, 1.0f, -1.0f), color); vertices[3] = Vertex(D3DXVECTOR3(1.0f, -1.0f, -1.0f), color); //back vertices[4] = Vertex(D3DXVECTOR3(-1.0f, -1.0f, 1.0f), color); vertices[5] = Vertex(D3DXVECTOR3(1.0f, -1.0f, 1.0f), color); vertices[6] = Vertex(D3DXVECTOR3(1.0f, 1.0f, 1.0f), color); vertices[7] = Vertex(D3DXVECTOR3(-1.0f, 1.0f, 1.0f), color); //top vertices[8] = Vertex(D3DXVECTOR3(-1.0f, 1.0f, -1.0f), color); vertices[9] = Vertex(D3DXVECTOR3(-1.0f, 1.0f, 1.0f), color); vertices[10] = Vertex(D3DXVECTOR3(1.0f, 1.0f, 1.0f), color); vertices[11] = Vertex(D3DXVECTOR3(1.0f, 1.0f, -1.0f), color); //bottom vertices[12] = Vertex(D3DXVECTOR3(-1.0f, -1.0f, -1.0f), color); vertices[13] = Vertex(D3DXVECTOR3(1.0f, -1.0f, -1.0f), color); vertices[14] = Vertex(D3DXVECTOR3(1.0f, -1.0f, 1.0f), color); vertices[15] = Vertex(D3DXVECTOR3(-1.0f, -1.0f, 1.0f), color); //left vertices[16] = Vertex(D3DXVECTOR3(-1.0f, -1.0f, 1.0f), color); vertices[17] = Vertex(D3DXVECTOR3(-1.0f, 1.0f, 1.0f), color); vertices[18] = Vertex(D3DXVECTOR3(-1.0f, 1.0f, -1.0f), color); vertices[19] = Vertex(D3DXVECTOR3(-1.0f, -1.0f, -1.0f), color); //right vertices[20] = Vertex(D3DXVECTOR3(1.0f, -1.0f, -1.0f), color); vertices[21] = Vertex(D3DXVECTOR3(1.0f, 1.0f, -1.0f), color); vertices[22] = Vertex(D3DXVECTOR3(1.0f, 1.0f, 1.0f), color); vertices[23] = Vertex(D3DXVECTOR3(1.0f, -1.0f, 1.0f), color); vertexBuffer->Unlock(); scene->GetDevice()->CreateIndexBuffer(36 * sizeof(WORD), D3DUSAGE_WRITEONLY, D3DFMT_INDEX16, D3DPOOL_MANAGED, &indexBuffer, 0); WORD* i = 0; indexBuffer->Lock(0, 0, reinterpret_cast<void **> (&i), 0); // fill in the front face index data i[0] = 0; i[1] = 1; i[2] = 2; i[3] = 0; i[4] = 2; i[5] = 3; // fill in the back face index data i[6] = 4; i[7] = 5; i[8] = 6; i[9] = 4; i[10] = 6; i[11] = 7; // fill in the top face index data i[12] = 8; i[13] = 9; i[14] = 10; i[15] = 8; i[16] = 10; i[17] = 11; // fill in the bottom face index data i[18] = 12; i[19] = 13; i[20] = 14; i[21] = 12; i[22] = 14; i[23] = 15; // fill in the left face index data i[24] = 16; i[25] = 17; i[26] = 18; i[27] = 16; i[28] = 18; i[29] = 19; // fill in the right face index data i[30] = 20; i[31] = 21; i[32] = 22; i[33] = 20; i[34] = 22; i[35] = 23; indexBuffer->Unlock(); return true; } Cube::~Cube() { vertexBuffer->Release(); vertexBuffer = 0; indexBuffer->Release(); indexBuffer = 0; } bool Cube::Draw() const { D3DXMATRIX mtrx; D3DXMatrixTranslation(&mtrx, x, y, z); scene->GetDevice()->SetTransform(D3DTS_WORLD, &mtrx); scene->GetDevice()->SetStreamSource(0, vertexBuffer, 0, sizeof(Vertex)); scene->GetDevice()->SetIndices(indexBuffer); scene->GetDevice()->SetFVF(Vertex::FVF); scene->GetDevice()->DrawIndexedPrimitive( D3DPT_TRIANGLELIST, 0, 0, 24, 0, 12); return true; }If I create a Cube like this: Cube cube; cube.Init(); cube.Draw(); Then it works. But if I try to add some cubes to a std::vector the program crashes: vector<Cube> v; for (int i = 0; i < 4; ++i) { v.push_back(Cube()); }[/souce]So for some reason I can't have them in a stl-container. <SPAN CLASS=editedby>[edited by - Eriond on March 21, 2004 3:50:49 PM]</SPAN>

General and Gameplay Programming Programming

Started by Eriond March 21, 2004 02:48 PM

20 comments, last by Eriond 20 years ago

sbennett

124

March 22, 2004 03:49 PM

Are you trying to call GetDevice through a NULL pointer? It looks that way from the error you''re getting.

Hint: when it crashes, go into the debugger and look at the Variables window. Check the value of ''this''.

Eriond

187

Author

March 22, 2004 05:42 PM

I got it to work now. I fixed the copy ctor and assignment operator of Cube, and moved some code from another ctor to a new function.

Can't add object to std::vector

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