trabalho.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <time.h>
#include <math.h>

#if defined (__APPLE__) || defined(MACOSX)
	#include <GLUT/glut.h>
#else
	#include <GL/glut.h>
#endif

#include "EstruturasDeDados.h"
#include "winGL.h"

int			wLargura 	= 500,
			wAltura 	= 500;

tPonto		nuvemAsteroides[10];
tPonto		navePos;
bool 		mostraNave 	= true,
			animacao 	= false,
			linha		= false,
			desenhaQuad = false;

/// ***********************************************************************
/// **
/// ***********************************************************************

void temporizar(int v) {

		navePos.x -= 5;
		if (navePos.x < 0)
			navePos.x = wLargura;

		navePos.y -= 2;
		if (navePos.y < 0 )
			navePos.y = wAltura;

		glutPostRedisplay();
}

/// ***********************************************************************
/// **
/// ***********************************************************************

void idle() {

	if (animacao) {

		navePos.x += 3;
		if (navePos.x > wLargura)
			navePos.x = 0;

		navePos.y += 1;
		if (navePos.y > wAltura)
			navePos.y = 0;

		glutPostRedisplay();
		}
}

/// ***********************************************************************
/// **
/// ***********************************************************************

void tecladoEspecial(int key, int x, int y) {
	switch (key) {
		case GLUT_KEY_UP	: 	// setas do teclado
								break;
		case GLUT_KEY_DOWN	: 	// setas do teclado
								break;
		case GLUT_KEY_LEFT	: 	// setas do teclado
								break;
		case GLUT_KEY_RIGHT	: 	// setas do teclado
								break;
		}
	glutPostRedisplay();
}

/// ***********************************************************************
/// **
/// ***********************************************************************

void teclado(unsigned char key, int x, int y) {
	switch (key) {
		case 27		: 	exit(0);
						break;

		case 'l'	:
		case 'L'	:	linha = !linha;
						break;

		case 'q'	:
		case 'Q'	:	desenhaQuad = !desenhaQuad;
						break;

		case 'n'	:
		case 'N'	:	mostraNave = !mostraNave;
						break;

		case 'R'	:
		case 'r'	:	animacao = !animacao;
						break;

		case 't'	:
		case 'T'	:	glutTimerFunc( 500, temporizar, 1);
						break;
		}
	glutPostRedisplay();
}

/// ***********************************************************************
/// **
/// ***********************************************************************

void mouse(int button, int button_state, int x, int y ) {

	if 	(button_state == GLUT_DOWN ) {
		switch (button) {

			case GLUT_LEFT_BUTTON	: 	printf("LEFT\n"); // faz alguma coisa quando o botao esquerdo for pressionado
										break;

			case GLUT_RIGHT_BUTTON	:	printf("RIGHT\n"); // faz alguma coisa quando o botao direito for pressionado
										break;
			}
		glutPostRedisplay();
		}
}

/// ***********************************************************************
/// **
/// ***********************************************************************

void desenho(void) {

int i;
tPonto max 		= { wLargura, wLargura };
tPonto min 		= { 0, 0 };
tPonto medio 	= { wLargura/2.0 , wLargura/2.0 };
tPonto medio2 	= { 0.0 , wLargura/2.0 };

    glClear(GL_COLOR_BUFFER_BIT);

    if (mostraNave)
    	desenhaNave(navePos, RED);

    if (linha) {
    	desenhaLinha(min, medio, BLUE);
    	desenhaLinha(medio2, max, BLUE);
    	}

    for (i = 0 ; i < 10 ; i++)
    	desenhaAsteroide(nuvemAsteroides[i], 10.0, RED);

    if (desenhaQuad) {
    	desenhaQuadrante(min, medio, GRAY);
    	desenhaQuadrante(medio, max, GRAY);
    	}

    glutSwapBuffers();
}

/// ***********************************************************************
/// **
/// ***********************************************************************

int main(int argc, char** argv) {

int i;

	srand ( time(NULL) );

	for (i = 0 ; i < 10 ; i++) {
		nuvemAsteroides[i].x = rand() % wLargura;
		nuvemAsteroides[i].y = rand() % wAltura;
		}
	navePos.x = wLargura / 2.0;
	navePos.y = wAltura / 2.0;

	criaJanela(argc, argv);

    initOpenGL();

    initEventos();

    return 0;
}