📄 cuboid.cpp
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// Cuboid.cpp: implementation of the CCuboid class.
//
//////////////////////////////////////////////////////////////////////
#include "Cuboid.h"
#include <stdio.h>
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CCuboid::CCuboid(LPDIRECT3DDEVICE8 pD3DDevice)
{
m_pD3DDevice = pD3DDevice;
m_pVertexBuffer = NULL;
m_pTexture = NULL;
//Set a default size and position
m_rWidth = 10.0;
m_rHeight = 10.0;
m_rDepth = 10.0;
m_rX = 0.0;
m_rY = 0.0;
m_rZ = 0.0;
//Set material default values (R, G, B, A)
D3DCOLORVALUE rgbaDiffuse = {1.0, 1.0, 1.0, 0.0,};
D3DCOLORVALUE rgbaAmbient = {1.0, 1.0, 1.0, 0.0,};
D3DCOLORVALUE rgbaSpecular = {0.0, 0.0, 0.0, 0.0,};
D3DCOLORVALUE rgbaEmissive = {0.0, 0.0, 0.0, 0.0,};
SetMaterial(rgbaDiffuse, rgbaAmbient, rgbaSpecular, rgbaEmissive, 0);
//Initialize Vertex Buffer
if(SUCCEEDED(CreateVertexBuffer()))
{
UpdateVertices();
}
}
CCuboid::~CCuboid()
{
SafeRelease(m_pTexture);
SafeRelease(m_pVertexBuffer);
}
bool CCuboid::Render()
{
m_pD3DDevice->SetStreamSource(0, m_pVertexBuffer, sizeof(CUBOID_CUSTOMVERTEX));
m_pD3DDevice->SetVertexShader(CUBOID_D3DFVF_CUSTOMVERTEX);
if(m_pTexture != NULL)
{
//A texture has been set. We want our texture to be shaded based
//on the current light levels, so used D3DTOP_MODULATE.
m_pD3DDevice->SetTexture(0, m_pTexture);
m_pD3DDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
m_pD3DDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
m_pD3DDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_CURRENT);
}
else
{
//No texture has been set
m_pD3DDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG2);
m_pD3DDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
m_pD3DDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_CURRENT);
}
if(FAILED(m_pD3DDevice->SetMaterial(&m_matMaterial)))
{
//Set material failed
OutputDebugString("SetMaterial Failed!\n");
}
m_pD3DDevice->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 12);
return true;
}
HRESULT CCuboid::CreateVertexBuffer()
{
//Create the vertex buffer from our device.
if(FAILED(m_pD3DDevice->CreateVertexBuffer(36 * sizeof(CUBOID_CUSTOMVERTEX),
0, CUBOID_D3DFVF_CUSTOMVERTEX,
D3DPOOL_DEFAULT, &m_pVertexBuffer)))
{
return E_FAIL;
}
return S_OK;
}
D3DVECTOR CCuboid::GetTriangeNormal(D3DXVECTOR3* vVertex1, D3DXVECTOR3* vVertex2, D3DXVECTOR3* vVertex3)
{
D3DXVECTOR3 vNormal;
D3DXVECTOR3 v1;
D3DXVECTOR3 v2;
D3DXVec3Subtract(&v1, vVertex2, vVertex1);
D3DXVec3Subtract(&v2, vVertex3, vVertex1);
D3DXVec3Cross(&vNormal, &v1, &v2);
D3DXVec3Normalize(&vNormal, &vNormal);
return vNormal;
}
bool CCuboid::UpdateVertices()
{
VOID* pVertices;
D3DVECTOR vNormal;
CUBOID_CUSTOMVERTEX cvVertices[] =
{
//Top Face
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,}, //Vertex 0
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 1
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 2
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,}, //Vertex 3
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 4
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 5
//Face 1
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,}, //Vertex 6
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 7
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 8
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,}, //Vertex 9
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 10
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 11
//Face 2
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,}, //Vertex 12
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 13
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 14
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,}, //Vertex 15
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 16
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 17
//Face 3
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,}, //Vertex 18
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 19
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 20
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,}, //Vertex 21
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 22
{m_rX + (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 23
//Face 4
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,}, //Vertex 24
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 25
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 26
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,}, //Vertex 27
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 28
{m_rX - (m_rWidth / 2), m_rY + (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 29
//Bottom Face
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 1.0f,}, //Vertex 30
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 31
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 32
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 0.0f,}, //Vertex 33
{m_rX - (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ - (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 1.0f, 1.0f,}, //Vertex 34
{m_rX + (m_rWidth / 2), m_rY - (m_rHeight / 2), m_rZ + (m_rDepth / 2), 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,}, //Vertex 35
};
//Set all vertex normals
int i;
CHAR DEBUG[255];
for(i = 0; i < 36; i += 3)
{
vNormal = GetTriangeNormal(&D3DXVECTOR3(cvVertices[i].x, cvVertices[i].y, cvVertices[i].z), &D3DXVECTOR3(cvVertices[i + 1].x, cvVertices[i + 1].y, cvVertices[i + 1].z), &D3DXVECTOR3(cvVertices[i + 2].x, cvVertices[i + 2].y, cvVertices[i + 2].z));
cvVertices[i].nx = vNormal.x;
cvVertices[i].ny = vNormal.y;
cvVertices[i].nz = vNormal.z;
cvVertices[i + 1].nx = vNormal.x;
cvVertices[i + 1].ny = vNormal.y;
cvVertices[i + 1].nz = vNormal.z;
cvVertices[i + 2].nx = vNormal.x;
cvVertices[i + 2].ny = vNormal.y;
cvVertices[i + 2].nz = vNormal.z;
sprintf(DEBUG, "Vertices %d - %d: x = %f, y = %f, z = %f\n", i, i + 2, vNormal.x, vNormal.y, vNormal.z);
OutputDebugString(DEBUG);
}
//Get a pointer to the vertex buffer vertices and lock the vertex buffer
if(FAILED(m_pVertexBuffer->Lock(0, sizeof(cvVertices), (BYTE**)&pVertices, 0)))
{
return false;
}
//Copy our stored vertices values into the vertex buffer
memcpy(pVertices, cvVertices, sizeof(cvVertices));
//Unlock the vertex buffer
m_pVertexBuffer->Unlock();
return true;
}
bool CCuboid::SetSize(float rWidth, float rHeight, float rDepth)
{
m_rWidth = rWidth;
m_rHeight = rHeight;
m_rDepth = rDepth;
UpdateVertices();
return true;
}
bool CCuboid::SetPosition(float x, float y, float z)
{
m_rX = x;
m_rY = y;
m_rZ = z;
UpdateVertices();
return true;
}
bool CCuboid::SetTexture(const char *szTextureFilePath)
{
if(FAILED(D3DXCreateTextureFromFile(m_pD3DDevice, szTextureFilePath, &m_pTexture)))
{
return false;
}
UpdateVertices();
return true;
}
bool CCuboid::SetMaterial(D3DCOLORVALUE rgbaDiffuse, D3DCOLORVALUE rgbaAmbient, D3DCOLORVALUE rgbaSpecular, D3DCOLORVALUE rgbaEmissive, float rPower)
{
//Set the RGBA for diffuse light reflected from this material.
m_matMaterial.Diffuse = rgbaDiffuse;
//Set the RGBA for ambient light reflected from this material.
m_matMaterial.Ambient = rgbaAmbient;
//Set the color and sharpness of specular highlights for the material.
m_matMaterial.Specular = rgbaSpecular;
m_matMaterial.Power = rPower;
//Set the RGBA for light emitted from this material.
m_matMaterial.Emissive = rgbaEmissive;
return true;
}
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