package net.foxycorndog.presto3d.graphics;

import static org.lwjgl.opengl.GL11.*;

public class PrestoGL
{

    public static void drawCube(float x, float y, float z, int size)
    {

        glBegin(GL_QUADS);

            // Front face
            glNormal3f(0       , 0       , 1       );
            glVertex3f(x       , y       , z       );
            glVertex3f(x + size, y       , z       );
            glVertex3f(x + size, y + size, z       );
            glVertex3f(x       , y + size, z       );

            // Back face
            glNormal3f(0       , 0       , -1      );
            glVertex3f(x       , y       , z - size);
            glVertex3f(x       , y + size, z - size);
            glVertex3f(x + size, y + size, z - size);
            glVertex3f(x + size, y       , z - size);

            // Bottom face
            glNormal3f(0       , 1       , 0      );
            glVertex3f(x       , y       , z - size);
            glVertex3f(x + size, y       , z - size);
            glVertex3f(x + size, y       , z       );
            glVertex3f(x       , y       , z       );

            // Top face
            glNormal3f(0       , -1       , 0       );
            glVertex3f(x       , y + size, z - size);
            glVertex3f(x       , y + size, z       );
            glVertex3f(x + size, y + size, z       );
            glVertex3f(x + size, y + size, z - size);

            // Left face
            glNormal3f(-1       , 0       , 0       );
            glVertex3f(x       , y       , z       );
            glVertex3f(x       , y + size, z       );
            glVertex3f(x       , y + size, z - size);
            glVertex3f(x       , y       , z - size);

            // Right face
            glNormal3f(1       , 0       , 0       );
            glVertex3f(x + size, y       , z       );
            glVertex3f(x + size, y       , z - size);
            glVertex3f(x + size, y + size, z - size);
            glVertex3f(x + size, y + size, z       );

        glEnd();
    }

    public static float[] getCubeArray(float x, float y, float z, int size)
    {
        float array[] = null;
        array = new float[6 * 4];

        array = new float[]
        {
            // Front side
            x       , y       , z,
            x + size, y       , z,
            x + size, y + size, z,
            x       , y + size, z,

            // Back side
            x       , y       , z - size,
            x       , y + size, z - size,
            x + size, y + size, z - size,
            x + size, y       , z - size,

            // Bottom face
            x       , y       , z - size,
            x + size, y       , z - size,
            x + size, y       , z,
            x       , y       , z,

            // Top face
            x       , y + size, z - size,
            x       , y + size, z,
            x + size, y + size, z,
            x + size, y + size, z - size,

            // Left face
            x       , y       , z,
            x       , y + size, z,
            x       , y + size, z - size,
            x       , y       , z - size
        };

        return array;
    }
}