void ExtObject::Draw()
{
// Enable the Z stencil
cr::renderstate_value old_zbuffer_state = renderer->GetRenderState(cr::rs_zbuffer_enabled);
renderer->SetRenderState(cr::rs_zbuffer_enabled, (zbuffer ? cr::rsv_enabled : cr::rsv_disabled));
cr::point3d objpos(info.x, info.y, z + (depth / 2.0));
vector<cr::point3d> verts;
for( int i = 0; i < 8; i++)
{
verts.push_back( makepoint3d(cube_vertices_xyz[i]) );
}
transform_vertices(verts, false);
// Draw each face separately
for (int i = 0; i < 6; i++) {
renderer->SetTexture(textures[i]);
float u = textures[i]->xf;
float v = textures[i]->yf;
//pRuntime->EndBatch();
renderer->BeginBatchQuads(24, 36);
renderer->AddIndex(0);
renderer->AddIndex(1);
renderer->AddIndex(2);
renderer->AddIndex(2);
renderer->AddIndex(3);
renderer->AddIndex(0);
for(int b = i*4; b < i*4 + 4; b++){
renderer->AddVertex(verts[cube_indexes[b]],
cr::point(cube_vertices[b]._uv.u * u, cube_vertices[b]._uv.v * v),
cr::opaque_white);
}
}
renderer->SetRenderState(cr::rs_zbuffer_enabled, old_zbuffer_state);
}
void ExtObject::transform_vertices( vector<cr::point3d>& verts, bool screen)
{
cr::point3d objpos(info.x, info.y, z);
cr_float sin_a, sin_b, sin_c;
cr_float cos_a, cos_b, cos_c;
cr_float temp;
cr_float zz;
cr::sincosf(-yaw, &sin_a, &cos_a);
cr::sincosf(-pitch, &sin_b, &cos_b);
cr::sincosf(cr::to_radians(info.angle), &sin_c, &cos_c);
vector<cr::point3d>::iterator v = verts.begin();
for( ; v != verts.end(); v++)
{
cr::point vertexpos(v->x * info.w * scale, v->y * info.h * scale);
zz = v->z * depth * scale;
temp = (vertexpos.x * cos_a) - (zz * sin_a);
zz = (zz * cos_a) + (vertexpos.x * sin_a);
vertexpos.x = temp;
temp = (zz * cos_b) - (vertexpos.y * sin_b);
vertexpos.y = (vertexpos.y * cos_b) + (zz * sin_b);
zz = temp;
vertexpos.rotate(cr::to_radians(info.angle));
cr::point3d vertexpos3d(-vertexpos.x, -vertexpos.y, zz);
cr::point3d vertex = objpos + vertexpos3d;
if(screen)
{
vertex.x -= pLayout->scrollX;
vertex.y -= pLayout->scrollY;
}
*v = vertex;
}
}
