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// global declarations
LPDIRECT3D9 d3d; // the pointer to our Direct3D interface
LPDIRECT3DDEVICE9 d3ddev; // the pointer to the device class
LPDIRECT3DVERTEXBUFFER9 v_buffer = NULL; // the pointer to the vertex buffer
//texture declerations
LPDIRECT3DTEXTURE9 texture_1; // the wall texture
struct CUSTOMVERTEX
{
CUSTOMVERTEX(FLOAT fx, FLOAT fy, FLOAT fz, DWORD dwcolor, FLOAT fu, FLOAT fv) :
X(fx), Y(fy), Z(fz), COLOR(dwcolor), U(fu), V(fv) {}
FLOAT X, Y, Z;
DWORD COLOR;
FLOAT U, V;
};
#define CUSTOMFVF (D3DFVF_XYZ | D3DFVF_DIFFUSE | D3DFVF_TEX1)
// this is the function used to render a single frame
void render_frame(void)
{
static float movement = 0.0f;
d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
d3ddev->Clear(0, NULL, D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
d3ddev->BeginScene();
// select which vertex format we are using
d3ddev->SetFVF(CUSTOMFVF);
// SET UP THE PIPELINE
D3DXMATRIX matView; // the view transform matrix
D3DXMatrixLookAtLH(&matView,
&D3DXVECTOR3 (0.0f, 0.0f, movement), // the camera position
&D3DXVECTOR3 (0.0f, 0.0f, movement+10.0f), // the look-at position
&D3DXVECTOR3 (0.0f, 1.0f, 0.0f)); // the up direction
movement+=0.1f;
d3ddev->SetTransform(D3DTS_VIEW, &matView); // set the view transform to matView
D3DXMATRIX matProjection; // the projection transform matrix
D3DXMatrixPerspectiveFovLH(&matProjection,
D3DXToRadian(45), // the horizontal field of view
(FLOAT)SCREEN_WIDTH / (FLOAT)SCREEN_HEIGHT, // aspect ratio
1.0f, // the near view-plane
100.0f); // the far view-plane
d3ddev->SetTransform(D3DTS_PROJECTION, &matProjection); // set the projection
// select the vertex buffer to display
d3ddev->SetStreamSource(0, v_buffer, 0, sizeof(CUSTOMVERTEX));
// set the texture
d3ddev->SetTexture(0, texture_1);
// copy the vertex buffer to the back buffer
int i;
for (i=0;i<40;i++)
{
d3ddev->DrawPrimitive(D3DPT_TRIANGLESTRIP, i*4, 2);
}
d3ddev->EndScene();
d3ddev->Present(NULL, NULL, NULL, NULL);
return;
}
// this is the function that puts the 3D models into video RAM
void init_graphics(void)
{
// load the texture we will use
D3DXCreateTextureFromFile(d3ddev,
L"wall.png",
&texture_1);
float depth = 10.0f;
struct CUSTOMVERTEX* vertices[160];
// create the vertices using the CUSTOMVERTEX struct
int i;
for (i=0;i < 145;i+=16)
{
//left wall
vertices[i] = new CUSTOMVERTEX(-3.0f, 3.0f, depth, D3DCOLOR_XRGB(255, 255, 255),1 , 0);
vertices[i+1] = new CUSTOMVERTEX(-3.0f, 3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255),0 , 0);
vertices[i+2] = new CUSTOMVERTEX(-3.0f, -3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 1, 1);
vertices[i+3] = new CUSTOMVERTEX(-3.0f, -3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 0, 1);
//ceiling
vertices[i+4] = new CUSTOMVERTEX(-3.0f, 3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 1, 0);
vertices[i+5] = new CUSTOMVERTEX(3.0f, 3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 0 , 0);
vertices[i+6] = new CUSTOMVERTEX(-3.0f, 3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 1, 1);
vertices[i+7] = new CUSTOMVERTEX(3.0f, 3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 0, 1);
//right wall
vertices[i+8] = new CUSTOMVERTEX(3.0f, 3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 1, 0);
vertices[i+9] = new CUSTOMVERTEX(3.0f, 3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 0, 0);
vertices[i+10] = new CUSTOMVERTEX(3.0f, -3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 1, 1);
vertices[i+11] = new CUSTOMVERTEX(3.0f, -3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 0, 1);
//floor
vertices[i+12] = new CUSTOMVERTEX(-3.0f, -3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 1, 0);
vertices[i+13] = new CUSTOMVERTEX(3.0f, -3.0f, depth + 25.0f, D3DCOLOR_XRGB(255, 255, 255), 0, 0);
vertices[i+14] = new CUSTOMVERTEX(-3.0f, -3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 1, 1);
vertices[i+15] = new CUSTOMVERTEX(3.0f, -3.0f, depth, D3DCOLOR_XRGB(255, 255, 255), 0, 1);
depth +=25.0f;
}
// create a vertex buffer interface called v_buffer
d3ddev->CreateVertexBuffer(160*sizeof(CUSTOMVERTEX),
0,
CUSTOMFVF,
D3DPOOL_MANAGED,
&v_buffer,
NULL);
VOID* pVoid; // a void pointer
// lock v_buffer and load the vertices into it
v_buffer->Lock(0, 0, (void**)&pVoid, 0);
memcpy(pVoid, vertices, sizeof(vertices));
v_buffer->Unlock();
return;
}
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