#include <stdio.h>
#include "vogle.h"

static char ident[] = "@(#) Demonstrate just how much you can put in an object ";

#define         CUBE            1
#define         TOPLEFT         2
#define         TOPRIGHT        3
#define         BOTTOMLEFT      4
#define         BOTTOMRIGHT     5

/*
 * side
 *
 *      define a face for the cube
 */
void side()
{
        pushmatrix();
                translate(0.0, 0.0, 1.0);
                rect(-1.0, -1.0, 1.0, 1.0);
        popmatrix();
}

/*
 * makecube
 *
 *      set up a cube
 */
void makecube()
{

        makeobj(CUBE);

                /*
                 * The border around the cube
                 */
                rect(-5.0, -5.0, 10.0, 10.0);

                /*
                 * Make the cube from 4 squares
                 */
                pushmatrix();
                        side();
                        rotate(90.0, 'x');
                        side();
                        rotate(90.0, 'x');
                        side();
                        rotate(90.0, 'x');
                        side();
                popmatrix();

        closeobj();
}


/*
 * Demonstrate just how much you can put in an object
 */
int main( int argc, char *argv[] ){
        char device[20];

        fprintf(stderr,"Enter device name: ");
        gets(device);
        vinit(device);
        pushviewport();

        textsize(0.5, 0.9);
        font("futura.m");

        color(BLACK);
        clear();

        makecube();

        /*
         * set up an object which draws in the top left of the screen.
         */
        makeobj(TOPLEFT);
                viewport(-1.0, 0.0, 0.0, 1.0);
                ortho2(-5.0, 5.0, -5.0, 5.0);

                color(RED);

                rect(-5.0, -5.0, 5.0, 5.0);

                perspective(40.0, 1.0, 0.1, 1000.0);
                lookat(5.0, 8.0, 5.0, 0.0, 0.0, 0.0, 0.0);

                callobj(CUBE);

                color(GREEN);

                move2(-4.5, -4.5);
                drawstr("perspective/lookat");
        closeobj();

        /*
         * now set up one which draws in the top right of the screen
         */
        makeobj(TOPRIGHT);
                viewport(0.0, 1.0, 0.0, 1.0);
                ortho2(-5.0, 5.0, -5.0, 5.0);

                color(GREEN);

                rect(-5.0, -5.0, 5.0, 5.0);

                window(-5.0, 5.0, -5.0, 5.0, -5.0, 5.0);
                lookat(5.0, 8.0, 5.0, 0.0, 0.0, 0.0, 0.0);

                callobj(CUBE);

                color(RED);

                move2(-4.5, -4.5);
                drawstr("window/lookat");
        closeobj();

        /*
         * try the bottom left
         */
        makeobj(BOTTOMLEFT);
                viewport(-1.0, 0.0, -1.0, 0.0);
                ortho2(-5.0, 5.0, -5.0, 5.0);

                color(MAGENTA);

                rect(-5.0, -5.0, 5.0, 5.0);

                perspective(40.0, 1.0, 0.1, 1000.0);
                polarview(15.0, 30.0, 30.0, 30.0);

                callobj(CUBE);

                color(YELLOW);

                move2(-4.5, -4.5);
                drawstr("perspective/polarview");
        closeobj();

        /*
         * and the bottom right
         */
        makeobj(BOTTOMRIGHT);
                viewport(0.0, 1.0, -1.0, 0.0);
                ortho2(-5.0, 5.0, -5.0, 5.0);

                color(CYAN);

                rect(-5.0, -5.0, 5.0, 5.0);

                window(-5.0, 5.0, -5.0, 5.0, -5.0, 5.0);
                polarview(8.0, -18.0, -3.0, 18.0);

                callobj(CUBE);

                color(BLUE);

                move2(-4.5, -4.5);
                drawstr("window/polarview");
        closeobj();

        /*
         * now draw them
         */
        callobj(TOPLEFT);
        callobj(TOPRIGHT);
        callobj(BOTTOMLEFT);
        callobj(BOTTOMRIGHT);

        getkey();

        vexit();
}