void Square::buildModel() {
int verticies = 6;
vec3* points = new vec3[verticies];
vec3* colors = new vec3[verticies];
//front
buildFace(points, 0,
vec3(0.3,0.3,0.3), vec3(-0.3,0.3,0.3),
vec3(-0.3,-0.3,0.3), vec3(0.3,-0.3,0.3));
for(int i=0;i<verticies;i++)
colors[i] = vec3(1,0,0); //red
glBindBuffer(GL_ARRAY_BUFFER, buffers[0]);
glBufferData(GL_ARRAY_BUFFER, verticies*sizeof(vec3), points, GL_STATIC_DRAW);
vPosition = glGetAttribLocation(program, "vPosition");
glEnableVertexAttribArray(vPosition);
glVertexAttribPointer(vPosition, 3, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBindBuffer(GL_ARRAY_BUFFER, buffers[1]);
glBufferData(GL_ARRAY_BUFFER, verticies*sizeof(vec3), colors, GL_STATIC_DRAW);
vColor = glGetAttribLocation(program, "vColor");
glEnableVertexAttribArray(vColor);
glVertexAttribPointer(vColor, 3, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
delete[] points;
delete[] colors;
}
/**
* This will build the 8 points of a cube given:
*
* vec4 cube - the center point of a cube
* float radius - the distance from the center point to a corner on the cube
*
* The cube will be created in the following order. The points are
* represented by numbers and the faces are preceded by 'f'.
*
* 2----3
* 0---------------1 | f0 |
* |\ f0 |\ | |
* | \ | \ 2----0----1----3 +x=f1
* | 2---------------3 | f2 | f3 | f1 | -x=f2
* | | f3 | | | | | | +y=f0
* y |f2| | | 6----4----5----7 -y=f4
* | | | f5 |f1| | f4 | +z=f5
* | | | | | | | -z=f3
* O--x 4--|------------5 | 6----7
* \ \ | f4 \ | | f5 |
* z \| \| | |
* 6---------------7 2----3
*/
void Menger::buildCube(vec3 cube, float radius) {
vec4* verts = new vec4[8];
int index = 0;
for(int y=1; y>=-1; y-=2) {
for(int z=-1; z<=1; z+=2) {
for(int x=-1; x<=1; x+=2) {
verts[index++] = vec4(cube + (vec3(x,y,z) * radius), 1.);
}
}
}
vec4* face = new vec4[4];
face[0]=verts[2]; face[1]=verts[3]; face[2]=verts[1]; face[3] = verts[0];
buildFace(face, 0);
face[0]=verts[1]; face[1]=verts[3]; face[2]=verts[7]; face[3] = verts[5];
buildFace(face, 1);
face[0]=verts[2]; face[1]=verts[0]; face[2]=verts[4]; face[3] = verts[6];
buildFace(face, 2);
face[0]=verts[0]; face[1]=verts[1]; face[2]=verts[5]; face[3] = verts[4];
buildFace(face, 3);
face[0]=verts[4]; face[1]=verts[5]; face[2]=verts[7]; face[3] = verts[6];
buildFace(face, 4);
face[0]=verts[6]; face[1]=verts[7]; face[2]=verts[3]; face[3] = verts[2];
buildFace(face, 5);
delete[] face;
delete[] verts;
}
Face::Face(Facetype type, GameObject* parent, TopOrBottom p)
{
typeOfFace = type;
active = false;
buildFace(parent, p);
}
