commenting + added key to quit
This commit is contained in:
Volodymyr Patuta
parent
35de6e9c2b
commit
f0471ffc32
@ -34,6 +34,7 @@ $ make && ./solar-system
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* `0` à `9` pour visualiser en grand chaque astre.
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* `R` pour reprendre le contrôle (recover) du point précédant.
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* `O` pour toggle mode overview (vue de haut).
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* `Q` pour quitter.
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* `L` pour désactiver/activer la lumière.
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* `C` pour activer/désactiver l'utilisation de la couleur.
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80
window.c
80
window.c
@ -33,12 +33,15 @@ static int get_sign(float x, float y);
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/*!\brief un identifiant pour l'écran (de dessin) */
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static uint _screenId = 0;
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/*!\brief une surface représentant une sphere */
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// surface representing the Sun.
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static surface_t * _sun = NULL;
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// surface array representing 8 planets + pluto (dwarf planet).
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static surface_t * _planet[9] = { NULL, NULL, NULL,
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NULL, NULL, NULL,
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NULL, NULL, NULL };
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// surface array representing 18 moons of the planets.
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static surface_t * _moon[18] = {NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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@ -50,6 +53,7 @@ static int _use_tex = 1, _use_color = 0, _use_lighting = 1;
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typedef struct cam_t cam_t;
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// camera structure, borrowed from sample3d_01-1.6 of GL4Dummies samples.
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struct cam_t {
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float x, y, z;
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float theta;
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@ -57,17 +61,21 @@ struct cam_t {
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static cam_t _cam = {0, 1.0f, 10, 0};
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// movement speed.
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static float _v = 0.1f;
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// window size.
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static int _wW = 1200, _wH = 900;
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static int _xm = 400, _ym = 300;
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static int _pause = 0;
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static float _s = 1.0f;
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static int _movement = 1;
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static int _p = -1;
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static float _a = 0.0f;
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static int _overview = 0;
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// middle of the window.
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static int _xm = 600, _ym = 450;
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static int _pause = 0; // boolean value for the pause.
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static float _s = 1.0f; // multiplier for angle (for speeding planets movement and rotation).
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static int _movement = 1; // boolean to allow movement.
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static int _p = -1; // the object (sun, planets, pluto) number to move.
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static float _a = 0.0f; // rotation angle.
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static int _overview = 0; // boolean to toggle overview (view from the top).
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/*!\brief paramètre l'application et lance la boucle infinie. */
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int main(int argc, char ** argv) {
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@ -103,8 +111,9 @@ int main(int argc, char ** argv) {
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* utilisées dans ce code */
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void init(void) {
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uint id[9], sun_id, i, moon_id[18];
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_sun = mkSphere(12, 12); /*ça fait 12x12x2 trianles !*/
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// create all spheres.
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_sun = mkSphere(12, 12); /*ça fait 12x12x2 triangles !*/
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for(i = 0; i < 18; ++i) {
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_moon[i] = mkSphere(12, 12);
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}
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@ -112,6 +121,7 @@ void init(void) {
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_planet[i] = mkSphere(12, 12);
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}
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// get all textures.
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sun_id = getTexFromBMP("images/2k-sun.bmp");
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id[0] = getTexFromBMP("images/2k-mercury.bmp");
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id[1] = getTexFromBMP("images/2k-venus-surface.bmp");
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@ -123,6 +133,7 @@ void init(void) {
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id[7] = getTexFromBMP("images/2k-neptune.bmp");
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id[8] = getTexFromBMP("images/pluto.bmp");
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// https://upload.wikimedia.org/wikipedia/commons/4/4f/Moons_of_solar_system_v7.jpg
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// most of the biggest moons are here.
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moon_id[0] = getTexFromBMP("images/2k-moon.bmp");
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moon_id[1] = getTexFromBMP("images/moons/phobos.bmp");
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moon_id[2] = getTexFromBMP("images/moons/deimos.bmp");
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@ -142,6 +153,7 @@ void init(void) {
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moon_id[16] = getTexFromBMP("images/moons/triton.bmp");
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moon_id[17] = getTexFromBMP("images/moons/charon.bmp");
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// set texture to an object id and set all options.
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setTexId(_sun, sun_id);
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for(i = 0; i < 18; ++i)
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setTexId(_moon[i], moon_id[i]);
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@ -170,73 +182,76 @@ void init(void) {
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atexit(sortie);
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}
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// get sign for further move calculation.
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static int get_sign(float x, float y) {
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if (x > y)
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return 1;
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return -1;
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}
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// move to the coordinate.
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static void move_to(float posx, float posy , float posz){
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float epsilon = 0.1f;
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if (fabsf(_cam.x - posx) > epsilon){
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_cam.x = _cam.x - (get_sign(_cam.x, posx) * 0.2f);
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float epsilon = 0.1f; // precision for comparing
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if (fabsf(_cam.x - posx) > epsilon) {
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_cam.x = _cam.x - (get_sign(_cam.x, posx) * 0.09f);
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}
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if (fabsf(_cam.y - posy) > epsilon){
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_cam.y = _cam.y - (get_sign(_cam.y, posy) * 0.2f);
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if (fabsf(_cam.y - posy) > epsilon) {
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_cam.y = _cam.y - (get_sign(_cam.y, posy) * 0.09f);
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}
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if (fabsf(_cam.z - posz) > epsilon){
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_cam.z = _cam.z - (get_sign(_cam.z, posz) * 0.2f);
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if (fabsf(_cam.z - posz) > epsilon) {
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_cam.z = _cam.z - (get_sign(_cam.z, posz) * 0.09f);
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}
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}
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// go to a choosen object (planet, star, pluto(dwarf))
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static void goto_obj(float * mvMat) {
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switch (_p) {
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case 1:
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_a = 0;
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case 1: // MERCURY
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_a = 0; // reset angle to 0.
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 4.2f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(4.2f, 1.0f, 0.5f);
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break;
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case 2:
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case 2: // VENUS
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 7.9f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(7.9f, 1.0f, 1.0f);
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break;
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case 3:
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case 3: // EARTH
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 10.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(10.0f, 1.0f, 1.0f);
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break;
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case 4:
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case 4: // MARS
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 15.2f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(15.2f, 1.0f, 0.5f);
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break;
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case 5:
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case 5: // JUPITER
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 30.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(30.0f, 1.0f, 5.0f);
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break;
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case 6:
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case 6: // SATURN
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 50.4f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(50.4f, 1.0f, 5.0f);
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break;
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case 7:
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case 7: // NEPTUNE
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 65.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(65.0f, 1.0f, 5.0f);
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break;
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case 8:
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case 8: // URANUS
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 75.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(75.0f, 1.0f, 4.0f);
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break;
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case 9:
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case 9: // PLUTO
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 85.4f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(85.4f, 1.0f, 0.1f);
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break;
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case 0:
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case 0: // SUN
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_a = 0;
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lookAt(mvMat, _cam.x, _cam.y, _cam.z, 0, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
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move_to(0.0f, 1.0f, 10.0f);
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@ -340,7 +355,7 @@ void draw(void) {
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// Io
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rotate(nmv, r * 3.0f, 0.0f, 0.1f, 0.0f);
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translate(nmv, 3.0f, 0.0f, 0.0f);
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scale(nmv, (1/11.2f), (1/11.2f), (1/11.2f)); // 1/11.2f -> Jupiter is bigger then earth 11.2x / 50 io ~= moon size.
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scale(nmv, (1/11.2f), (1/11.2f), (1/11.2f));
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transform_n_raster(_moon[3], nmv, projMat);
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memcpy(nmv, cpy, sizeof nmv);
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@ -487,7 +502,7 @@ void draw(void) {
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gl4dpScreenHasChanged();
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/* fonction permettant de raffraîchir l'ensemble de la fenêtre*/
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gl4dpUpdateScreen(NULL);
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if (_pause != 1){
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if (!_pause){
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_a += ((360.0 * dt) / 60) * _s; // 360 in 1 minute so 1 day = 1 min
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r += ((360.0 * dt) / 60) * _s; // 360 in 1 minute so 1 day = 1 min
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}
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@ -574,7 +589,8 @@ void key(int keycode) {
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_pause = 0;
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_movement = 1;
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break;
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case GL4DK_z:
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case GL4DK_q:
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exit(0);
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break;
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case GL4DK_0:
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_p = 0;
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@ -708,6 +724,7 @@ void key(int keycode) {
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}
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}
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// handler of mouse motion.
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static void pmotion(int x, int y) {
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if (_movement){
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_xm = x;
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@ -716,6 +733,7 @@ static void pmotion(int x, int y) {
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}
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}
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// handler of mouse buttons.
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static void mouse(int button, int state, int x, int y) {
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if (_movement){
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double dtheta = M_PI;
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