mlr_i_c_pmesh.cpp

机甲指挥官2源代码

	texCoords[4] = Vector2DScalar(0.0f, 0.0f);
	texCoords[5] = Vector2DScalar(0.0f, 0.0f);
	texCoords[6] = Vector2DScalar(0.0f, 0.0f);
	texCoords[7] = Vector2DScalar(0.0f, 0.0f);

	if(state != NULL)
	{
		ret->SetReferenceState(*state);
		if(state->GetTextureHandle() > 0)
		{
			texCoords[0] = Vector2DScalar(0.0f, 0.0f);
			texCoords[1] = Vector2DScalar(1.0f, 0.0f);
			texCoords[2] = Vector2DScalar(0.25f, 0.25f);
			texCoords[3] = Vector2DScalar(0.75f, 0.25f);

			texCoords[4] = Vector2DScalar(1.0f, 1.0f);
			texCoords[5] = Vector2DScalar(0.0f, 1.0f);
			texCoords[6] = Vector2DScalar(0.25f, 0.75f);
			texCoords[7] = Vector2DScalar(0.75f, 0.75f);
		}
	}
	ret->SetTexCoordData(texCoords, 8);
	Unregister_Pointer(texCoords);
	delete [] texCoords;

	gos_PopCurrentHeap();
	return ret;
}

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
MLR_I_PMesh*
	MidLevelRenderer::CreateIndexedViewFrustrum_Color_NoLit(
		Scalar near_clip,
		Scalar far_clip,
		Scalar left_clip,
		Scalar right_clip,
		Scalar top_clip,
		Scalar bottom_clip,
		RGBAColor& color,
		MLRState *state
	)
{
	gos_PushCurrentHeap(Heap);
	MLR_I_C_PMesh *ret = new MLR_I_C_PMesh();
	Register_Object(ret);

	Point3D *coords = new Point3D [8];
	Register_Pointer(coords);

	Scalar right_far, left_far, top_far, bottom_far;
	Scalar fac = (near_clip + far_clip) / near_clip;

	right_far = right_clip*fac;
	left_far = left_clip*fac;
	top_far = top_clip*fac;
	bottom_far = bottom_clip*fac;

	coords[0] = Point3D(left_far, bottom_far, far_clip);
	coords[1] = Point3D(right_far, bottom_far, far_clip);
	coords[2] = Point3D(left_clip, bottom_clip, near_clip);
	coords[3] = Point3D(right_clip, bottom_clip, near_clip);
	coords[4] = Point3D(right_far, top_far, far_clip);
	coords[5] = Point3D(left_far, top_far, far_clip);
	coords[6] = Point3D(left_clip, top_clip, near_clip);
	coords[7] = Point3D(right_clip, top_clip, near_clip);

	unsigned char *lengths = new unsigned char [6];
	Register_Pointer(lengths);

	int i;

	for(i=0;i<6;i++)
	{
		lengths[i] = 4;
	}

//	ret->SetSubprimitiveLengths(lengths, 6);
	ret->SetSubprimitiveLengths(lengths, 5);

	ret->SetCoordData(coords, 8);

	unsigned short	*index = new unsigned short [6*4];
	Register_Pointer(index);

	index[0] = 0;
	index[1] = 5;
	index[2] = 4;
	index[3] = 1;

	index[4] = 0;
	index[5] = 1;
	index[6] = 3;
	index[7] = 2;

	index[8] = 0;
	index[9] = 2;
	index[10] = 6;
	index[11] = 5;

	index[12] = 1;
	index[13] = 4;
	index[14] = 7;
	index[15] = 3;

	index[16] = 2;
	index[17] = 3;
	index[18] = 7;
	index[19] = 6;

//	index[20] = 5;
//	index[21] = 6;
//	index[22] = 7;
//	index[23] = 4;

//	ret->SetIndexData(index, 6*4);
	ret->SetIndexData(index, 5*4);

	ret->FindFacePlanes();

#if COLOR_AS_DWORD
	DWORD *colors = new DWORD [8];
	Register_Pointer(colors);

	colors[0] = GOSCopyColor(color);
	for(i=1;i<8;i++)
	{
		colors[i] = colors[0];
	}

#else
	RGBAColor *colors = new RGBAColor[8];
	Register_Pointer(colors);

	for(i=0;i<8;i++)
	{
		colors[i] = color;
	}

	for(i=0;i<4;i++)
	{
		colors[i].red *= 0.8f;;
		colors[i].green *= 0.8f;;
		colors[i].blue *= 0.8f;;

		colors[i+4].red *= 1.2f;;
		colors[i+4].green *= 1.2f;;
		colors[i+4].blue *= 1.2f;;
	}


#endif
	ret->SetColorData(colors, 8);

	Vector2DScalar *texCoords = new Vector2DScalar[8];
	Register_Pointer(texCoords);

	texCoords[0] = Vector2DScalar(0.0f, 0.0f);
	texCoords[1] = Vector2DScalar(0.0f, 0.0f);
	texCoords[2] = Vector2DScalar(0.0f, 0.0f);
	texCoords[3] = Vector2DScalar(0.0f, 0.0f);

	texCoords[4] = Vector2DScalar(0.0f, 0.0f);
	texCoords[5] = Vector2DScalar(0.0f, 0.0f);
	texCoords[6] = Vector2DScalar(0.0f, 0.0f);
	texCoords[7] = Vector2DScalar(0.0f, 0.0f);

	ret->SetTexCoordData(texCoords, 8);

	if(state != NULL)
	{
		ret->SetReferenceState(*state);
	}

	Unregister_Pointer(texCoords);
	delete [] texCoords;

	Unregister_Pointer(colors);
	delete [] colors;

	Unregister_Pointer(index);
	delete [] index;

	Unregister_Pointer(lengths);
	delete [] lengths;

	Unregister_Pointer(coords);
	delete [] coords;

	gos_PopCurrentHeap();
	return ret;
}

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
MLRShape*
	MidLevelRenderer::CreateIndexedIcosahedron_Color_NoLit(
		IcoInfo& icoInfo,
		MLRState *state
	)
{
	gos_PushCurrentHeap(Heap);
	MLRShape *ret = new MLRShape(20);
	Register_Object(ret);

	int i, j, k;
	long    nrTri = (long) ceil (icoInfo.all * pow (4.0f, icoInfo.depth));
	Point3D v[3];

	if(3*nrTri >= Limits::Max_Number_Vertices_Per_Mesh)
	{
		nrTri = Limits::Max_Number_Vertices_Per_Mesh/3;
	}

	unsigned char *lengths = new unsigned char [nrTri];
	Register_Pointer(lengths);

	for(i=0;i<nrTri;i++)
	{
		lengths[i] = 3;
	}

	Point3D *coords = new Point3D [nrTri*3];
	Register_Pointer(coords);
	
	Point3D *collapsedCoords = NULL;
	if(icoInfo.indexed==true)
	{
		collapsedCoords = new Point3D [nrTri*3];
		Register_Pointer(collapsedCoords);
	}

	unsigned short	*index = new unsigned short [nrTri*3];
	Register_Pointer(index);
	Vector2DScalar *texCoords = new Vector2DScalar[nrTri*3];
	Register_Pointer(texCoords);
	RGBAColor *colors = new RGBAColor[nrTri*3];
	Register_Pointer(colors);

	int uniquePoints = 0;
	for (k=0;k<20;k++)
	{
		MidLevelRenderer::triDrawn = 0;
		MLR_I_C_PMesh *mesh = new MLR_I_C_PMesh();
		Register_Object(mesh);

// setup vertex position information
	    for (j=0;j<3;j++)
		{
			v[j].x = vdata[tindices[k][j]][0];
			v[j].y = vdata[tindices[k][j]][1];
			v[j].z = vdata[tindices[k][j]][2];
		}
		subdivide (coords, v[0], v[1], v[2], icoInfo.depth, nrTri, icoInfo.radius);

		mesh->SetSubprimitiveLengths(lengths, nrTri);


		if(icoInfo.indexed==true)
		{
			uniquePoints = 1;
			collapsedCoords[0] = coords[0];
			index[0] = 0;

			for(i=1;i<nrTri*3;i++)
			{
				for(j=0;j<uniquePoints;j++)
				{
					if(coords[i] == collapsedCoords[j])
					{
						break;
					}
				}
				if(j==uniquePoints)
				{
					collapsedCoords[uniquePoints++] = coords[i];
				}
				index[i] = static_cast<unsigned short>(j);
			}
			mesh->SetCoordData(collapsedCoords, uniquePoints);
		}
		else
		{
			uniquePoints = nrTri*3;
			for(i=0;i<nrTri*3;i++)
			{
				index[i] = static_cast<unsigned short>(i);
			}
			mesh->SetCoordData(coords, nrTri*3);
		}

		mesh->SetIndexData(index, nrTri*3);

		mesh->FindFacePlanes();

		if(state == NULL)
		{
			for(i=0;i<uniquePoints;i++)
			{
				texCoords[i] = Vector2DScalar(0.0f, 0.0f);
			}
		}
		else
		{
			mesh->SetReferenceState(*state);
			if(state->GetTextureHandle() > 0)
			{
				if(icoInfo.indexed==true)
				{
					for(i=0;i<uniquePoints;i++)
					{
						texCoords[i] = 
							Vector2DScalar(
								(1.0f + collapsedCoords[i].x)/2.0f,
								(1.0f + collapsedCoords[i].y)/2.0f
							);
					}
				}
				else
				{
					for(i=0;i<nrTri;i++)
					{
						texCoords[3*i] = 
							Vector2DScalar(
								(1.0f + coords[3*i].x)/2.0f,
								(1.0f + coords[3*i].y)/2.0f
							);
						texCoords[3*i+1] = 
							Vector2DScalar(
								(1.0f + coords[3*i+1].x)/2.0f,
								(1.0f + coords[3*i+1].y)/2.0f
							);
						texCoords[3*i+2] = 
							Vector2DScalar(
								(1.0f + coords[3*i+2].x)/2.0f,
								(1.0f + coords[3*i+2].y)/2.0f
							);
					}
				}
			}
			else
			{
				for(i=0;i<uniquePoints;i++)
				{
					texCoords[i] = Vector2DScalar(0.0f, 0.0f);
				}
			}
		}
		mesh->SetTexCoordData(texCoords, uniquePoints);

		if(icoInfo.indexed==true)
		{
			for(i=0;i<uniquePoints;i++)
			{
				colors[i] = 
					RGBAColor(
						(1.0f + collapsedCoords[i].x)/2.0f,
						(1.0f + collapsedCoords[i].y)/2.0f,
						(1.0f + collapsedCoords[i].z)/2.0f,
						1.0f
					);
			}
		}
		else
		{
			for(i=0;i<uniquePoints;i++)
			{
				colors[i] = 
					RGBAColor(
						(1.0f + coords[i].x)/2.0f,
						(1.0f + coords[i].y)/2.0f,
						(1.0f + coords[i].z)/2.0f,
						1.0f
					);
			}
		}
		mesh->SetColorData(colors, uniquePoints);

		ret->Add(mesh);
		mesh->DetachReference();
	}

	Unregister_Pointer(colors);
	delete [] colors;

	Unregister_Pointer(texCoords);
	delete [] texCoords;

	Unregister_Pointer(index);
	delete [] index;

	if(icoInfo.indexed==true)
	{
		Unregister_Pointer(collapsedCoords);
		delete [] collapsedCoords;
	}
	
	Unregister_Pointer(coords);
	delete [] coords;
	
	Unregister_Pointer(lengths);
	delete [] lengths;

	gos_PopCurrentHeap();
	return ret;
}