GLfloat* Entity::getBuffer(unsigned int& size, int buffers) {
GLfloat* tempBuffer;
GLfloat* vertexTempBuffer = mesh->getVertexBuffer();
GLfloat* normalTempBuffer = getNormalBuffer();
tempBuffer = new GLfloat[24];
size = mesh->getNumVerticies(false) * (3 + 3) * sizeof(GLfloat);
for(int i = 0; i < mesh->getNumVerticies(false); i++) {
// Vertex Position
tempBuffer[6 * i] = vertexTempBuffer[3 * i];
tempBuffer[6 * i + 1] = vertexTempBuffer[3 * i + 1];
tempBuffer[6 * i + 2] = vertexTempBuffer[3 * i + 2];
// Normal
tempBuffer[6 * i + 3] = normalTempBuffer[3 * i];
tempBuffer[6 * i + 4] = normalTempBuffer[3 * i + 1];
tempBuffer[6 * i + 5] = normalTempBuffer[3 * i + 2];
}
delete vertexTempBuffer, normalTempBuffer;
return tempBuffer;
}
void Mesh::glDraw() {
//get vertex and normal buffers
uint numVertices;
const float *vertexBuffer = getVertexBuffer(numVertices);
const float *normalBuffer = getNormalBuffer(numVertices);
//draw arrays using openGL
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
if (vertexBuffer) glVertexPointer(3, GL_FLOAT, 0, vertexBuffer);
if (normalBuffer) glNormalPointer(GL_FLOAT, 0, normalBuffer);
glDrawArrays(GL_QUADS, 0, numVertices);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
