bool Setup()
{
Device->CreateVertexBuffer(
3 * sizeof(ColorVertex),
D3DUSAGE_WRITEONLY,
ColorVertex::FVF,
D3DPOOL_MANAGED,
&Triangle,
0);
ColorVertex* v;
Triangle->Lock(0, 0, reinterpret_cast<void**>(&v), 0);
v[0] = ColorVertex(-1.0f, 0.0f, 2.0f, D3DCOLOR_XRGB(255, 0, 0));
v[1] = ColorVertex(0.0f, 1.0f, 2.0f, D3DCOLOR_XRGB(0,255, 0));
v[2] = ColorVertex(1.0f, 0.0f, 2.0f, D3DCOLOR_XRGB(0, 0, 255));
Triangle->Unlock();
D3DXMATRIX proj;
D3DXMatrixPerspectiveFovLH(
&proj,
D3DX_PI*0.5f,
static_cast<float>(Width) / static_cast<float>(Height),
1.0f,
1000.0f);
Device->SetTransform(D3DTS_PROJECTION, &proj);
Device->SetRenderState(D3DRS_LIGHTING, false);
return true;
}
bool Setup()
{
//Create the Vertex Buffer
Device->CreateVertexBuffer(
3 * sizeof(ColorVertex),
D3DUSAGE_WRITEONLY, // usage
ColorVertex::FVF, // Vertex format
D3DPOOL_MANAGED, // managed memory pool
&Triangle, // return create vertex buffer
0);
//fill the vertex buffer
ColorVertex* v;
Triangle->Lock(0, 0, (void**)&v, 0);
v[0] = ColorVertex(-1.0f, 0.0f, 2.0f, D3DCOLOR_XRGB(255, 0, 0));
v[1] = ColorVertex( 0.0f, 1.0f, 2.0f, D3DCOLOR_XRGB( 0, 255, 0));
v[2] = ColorVertex( 1.0f, 0.0f, 2.0f, D3DCOLOR_XRGB( 0, 0, 255));
Triangle->Unlock();
//投影矩阵
D3DXMATRIX proj;
D3DXMatrixPerspectiveFovLH(
&proj,
D3DX_PI * 0.5f,
(float)Width / (float)Height,
1.0f,
1000.0f);
Device->SetTransform(D3DTS_PROJECTION, &proj);
Device->SetRenderState(D3DRS_LIGHTING, false); //普通的填充模式
return true;
}
virtual bool Setup(HINSTANCE hInstance, int width, int height, bool windowed, D3DDEVTYPE deviceType)
{
if (!D3DBase::Setup(hInstance, width, height, windowed, deviceType))
{
return false;
}
pDevice_->CreateVertexBuffer(3 * sizeof(ColorVertex),
D3DUSAGE_WRITEONLY, FVF, D3DPOOL_MANAGED,
&pTriangle, 0);
// FIll the buffer with the triangle data
ColorVertex *v;
pTriangle->Lock(0, 0, (void **)&v, 0);
v[0] = ColorVertex(-1.0f, 0.0f, 2.0f, D3DCOLOR_XRGB(255, 0, 0));
v[1] = ColorVertex(0.0f, 1.0f, 2.0f, D3DCOLOR_XRGB(0, 255, 0));
v[2] = ColorVertex(1.0f, 0.0f, 2.0f, D3DCOLOR_XRGB(0, 0, 255));
pTriangle->Unlock();
// set the projection matrix
D3DXMATRIX proj;
D3DXMatrixPerspectiveFovLH(&proj, D3DX_PI * 0.5f,
Width / Height, 1.0f, 1000.0f);
pDevice_->SetTransform(D3DTS_PROJECTION, &proj);
// turn off lighting
pDevice_->SetRenderState(D3DRS_LIGHTING, false);
return true;
}
void Simulation::create_random_vertex(const int vertexIndex)
{
const float centerX = random_float(-1.0f, 1.0f);
const float centerY = random_float(-1.0f, 1.0f);
const float Range = 0.15f;
const unsigned char red = random_byte();
const unsigned char green = random_byte();
const unsigned char blue = random_byte();
const unsigned char alpha = random_byte();
currentVertices[vertexIndex + 0] = ColorVertex(centerX + random_float(-Range, Range), centerY + random_float(-Range, Range), red, green, blue, alpha);
currentVertices[vertexIndex + 1] = ColorVertex(centerX + random_float(-Range, Range), centerY + random_float(-Range, Range), red, green, blue, alpha);
currentVertices[vertexIndex + 2] = ColorVertex(centerX + random_float(-Range, Range), centerY + random_float(-Range, Range), red, green, blue, alpha);
currentVertexCount += 3;
}
