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57726d85d1
solar_system/window.c
Volodymyr Patuta 57726d85d1 simplified repeating code
2020-12-31 19:51:14 +01:00

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/*!\file window.c
* \brief Utilisation du raster "maison" pour finaliser le pipeline de
* rendu 3D. Ici on peut voir les géométries disponibles.
* \author Farès BELHADJ, amsi@up8.edu
* \date December 4, 2020.
* \todo pour les étudiant(e)s : changer la variation de l'angle de
* rotation pour qu'il soit dépendant du temps et non du framerate
*/
#include <assert.h>
/* inclusion des entêtes de fonctions de gestion de primitives simples
* de dessin. La lettre p signifie aussi bien primitive que
* pédagogique. */
#include <GL4D/gl4dp.h>
/* inclure notre bibliothèque "maison" de rendu */
#include "moteur.h"
/* inclusion des entêtes de fonctions de création et de gestion de
* fenêtres système ouvrant un contexte favorable à GL4dummies. Cette
* partie est dépendante de la bibliothèque SDL2 */
#include <GL4D/gl4duw_SDL2.h>
#include <SDL_mixer.h>
/* protos de fonctions locales (static) */
static void init(void);
static void draw(void);
static void key(int keycode);
static void sortie(void);
static void pmotion(int x, int y);
static void mouse(int button, int state, int x, int y);
static void goto_obj(float * mvMat);
static void move_to(float posx, float posy , float posz);
static int get_sign(float x, float y);
/*!\brief un identifiant pour l'écran (de dessin) */
static uint _screenId = 0;
// surface representing the Sun.
static surface_t * _sun = NULL;
// surface array representing 8 planets + pluto (dwarf planet).
static surface_t * _planet[9] = { NULL, NULL, NULL,
NULL, NULL, NULL,
NULL, NULL, NULL };
// surface array representing 18 moons of the planets.
static surface_t * _moon[18] = {NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL};
/* des variable d'états pour activer/désactiver des options de rendu */
static int _use_tex = 1, _use_color = 0, _use_lighting = 1;
typedef struct cam_t cam_t;
// camera structure, borrowed from sample3d_01-1.6 of GL4Dummies samples.
struct cam_t {
float x, y, z;
float theta;
};
static cam_t _cam = {0, 1.0f, 10, 0};
// movement speed.
static float _v = 0.1f;
// window size.
static int _wW = 1200, _wH = 900;
// middle of the window.
static int _xm = 600, _ym = 450;
static int _pause = 0; // boolean value for the pause.
static int _movement = 1; // boolean to allow movement.
static int _overview = 0; // boolean to toggle overview (view from the top).
static int _p = -1; // the object (sun, planets, pluto) number to move.
static float _s = 1.0f; // multiplier for angle (for speeding planets movement and rotation).
static float _a = 0.0f; // rotation angle.
static float _r = 0.0f;
static Mix_Chunk * bsound = NULL; // background sound.
/*!\brief paramètre l'application et lance la boucle infinie. */
int main(int argc, char ** argv) {
if (SDL_Init(SDL_INIT_AUDIO) == -1) {
fprintf(stderr, "SDL_Init: %s\n,", Mix_GetError());
exit(3);
}
/* tentative de création d'une fenêtre pour GL4Dummies */
if(!gl4duwCreateWindow(argc, argv, /* args du programme */
"Solar System", /* titre */
10, 10, _wW, _wH, /* x, y, largeur, heuteur */
GL4DW_SHOWN) /* état visible */) {
/* ici si échec de la création souvent lié à un problème d'absence
* de contexte graphique ou d'impossibilité d'ouverture d'un
* contexte OpenGL (au moins 3.2) */
return 1;
}
/* Pour forcer la désactivation de la synchronisation verticale */
SDL_GL_SetSwapInterval(0);
init();
/* création d'un screen GL4Dummies (texture dans laquelle nous
* pouvons dessiner) aux dimensions de la fenêtre */
_screenId = gl4dpInitScreen();
/* mettre en place la fonction d'interception clavier */
gl4duwMouseFunc(mouse);
gl4duwKeyDownFunc(key);
gl4duwPassiveMotionFunc(pmotion);
/* mettre en place la fonction de display */
gl4duwDisplayFunc(draw);
/* boucle infinie pour éviter que le programme ne s'arrête et ferme
* la fenêtre immédiatement */
gl4duwMainLoop();
return 0;
}
/*!\brief init de nos données, spécialement les trois surfaces
* utilisées dans ce code */
void init(void) {
uint id[9], sun_id, i, moon_id[18];
int flags, initted;
flags = MIX_INIT_MP3;
initted = Mix_Init(flags);
if ((initted & flags) != flags) {
fprintf(stderr, "Mix_Init: Failed to init required mp3 support!\n");
fprintf(stderr, "Mix_Init: %s\n,", Mix_GetError());
exit(2);
}
if (Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024) == -1) {
fprintf(stderr, "Mix_OpenAudio: %s\n,", Mix_GetError());
exit(4);
}
if (bsound == NULL)
bsound = Mix_LoadWAV("./space.wav");
if (Mix_PlayChannel(-1, bsound, 0) < 0)
fprintf(stderr, "Mix_PlayChannel: %s\n", Mix_GetError());
// create all spheres.
_sun = mkSphere(12, 12); /*ça fait 12x12x2 triangles !*/
for(i = 0; i < 18; ++i) {
_moon[i] = mkSphere(12, 12);
if (i < 9)
_planet[i] = mkSphere(12, 12);
}
// get all textures.
sun_id = getTexFromBMP("images/2k-sun.bmp");
id[0] = getTexFromBMP("images/2k-mercury.bmp");
id[1] = getTexFromBMP("images/2k-venus-surface.bmp");
id[2] = getTexFromBMP("images/2k-earth-daymap.bmp");
id[3] = getTexFromBMP("images/2k-mars.bmp");
id[4] = getTexFromBMP("images/2k-jupiter.bmp");
id[5] = getTexFromBMP("images/2k-saturn.bmp");
id[6] = getTexFromBMP("images/2k-uranus.bmp");
id[7] = getTexFromBMP("images/2k-neptune.bmp");
id[8] = getTexFromBMP("images/pluto.bmp");
// https://upload.wikimedia.org/wikipedia/commons/4/4f/Moons_of_solar_system_v7.jpg
// most of the biggest moons are here.
moon_id[0] = getTexFromBMP("images/2k-moon.bmp");
moon_id[1] = getTexFromBMP("images/moons/phobos.bmp");
moon_id[2] = getTexFromBMP("images/moons/deimos.bmp");
moon_id[3] = getTexFromBMP("images/moons/io.bmp");
moon_id[4] = getTexFromBMP("images/moons/europa.bmp");
moon_id[5] = getTexFromBMP("images/moons/ganymede.bmp");
moon_id[6] = getTexFromBMP("images/moons/callisto.bmp");
moon_id[7] = getTexFromBMP("images/moons/enceladus.bmp");
moon_id[8] = getTexFromBMP("images/moons/dione.bmp");
moon_id[9] = getTexFromBMP("images/moons/rhea.bmp");
moon_id[10] = getTexFromBMP("images/moons/titan.bmp");
moon_id[11] = getTexFromBMP("images/moons/iapetus.bmp");
moon_id[12] = getTexFromBMP("images/moons/ariel.bmp");
moon_id[13] = getTexFromBMP("images/moons/umbriel.bmp");
moon_id[14] = getTexFromBMP("images/moons/titania.bmp");
moon_id[15] = getTexFromBMP("images/moons/oberon.bmp");
moon_id[16] = getTexFromBMP("images/moons/triton.bmp");
moon_id[17] = getTexFromBMP("images/moons/charon.bmp");
// set texture to an object id and set all options.
setTexId(_sun, sun_id);
if(_use_tex)
enableSurfaceOption(_sun, SO_USE_TEXTURE);
if(_use_lighting)
enableSurfaceOption(_sun, SO_USE_LIGHTING);
disableSurfaceOption(_sun, SO_USE_COLOR);
for(i = 0; i < 18; ++i) {
setTexId(_moon[i], moon_id[i]);
disableSurfaceOption(_moon[i], SO_USE_COLOR);
if(_use_tex)
enableSurfaceOption(_moon[i], SO_USE_TEXTURE);
if(_use_lighting)
enableSurfaceOption(_moon[i], SO_USE_LIGHTING);
if (i < 9) {
setTexId(_planet[i], id[i]);
disableSurfaceOption(_planet[i], SO_USE_COLOR);
if(_use_tex)
enableSurfaceOption(_planet[i], SO_USE_TEXTURE);
if(_use_lighting)
enableSurfaceOption(_planet[i], SO_USE_LIGHTING);
}
}
atexit(sortie);
}
// get sign for further move calculation.
static int get_sign(float x, float y) {
if (x > y)
return 1;
return -1;
}
// move to the coordinate.
static void move_to(float posx, float posy , float posz){
float epsilon = 0.1f; // precision for comparing
if (fabsf(_cam.x - posx) > epsilon) {
_cam.x = _cam.x - (get_sign(_cam.x, posx) * 0.09f);
}
if (fabsf(_cam.y - posy) > epsilon) {
_cam.y = _cam.y - (get_sign(_cam.y, posy) * 0.09f);
}
if (fabsf(_cam.z - posz) > epsilon) {
_cam.z = _cam.z - (get_sign(_cam.z, posz) * 0.09f);
}
}
// go to a choosen object (planet, star, pluto(dwarf))
static void goto_obj(float * mvMat) {
switch (_p) {
case 1: // MERCURY
_a = 0; // reset angle to 0.
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 4.2f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(4.2f, 1.0f, 0.5f);
break;
case 2: // VENUS
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 7.9f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(7.9f, 1.0f, 1.0f);
break;
case 3: // EARTH
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 10.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(10.0f, 1.0f, 1.0f);
break;
case 4: // MARS
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 15.2f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(15.2f, 1.0f, 0.5f);
break;
case 5: // JUPITER
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 30.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(30.0f, 1.0f, 5.0f);
break;
case 6: // SATURN
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 50.4f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(50.4f, 1.0f, 5.0f);
break;
case 7: // NEPTUNE
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 65.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(65.0f, 1.0f, 5.0f);
break;
case 8: // URANUS
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 75.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(75.0f, 1.0f, 4.0f);
break;
case 9: // PLUTO
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 85.4f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(85.4f, 1.0f, 0.1f);
break;
case 0: // SUN
_a = 0;
lookAt(mvMat, _cam.x, _cam.y, _cam.z, 0, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f);
move_to(0.0f, 1.0f, 10.0f);
break;
}
}
void draw_object(float * nmv, float * projMat, surface_t * obj,
float ma, float mx, float my, float mz,
float tx, float ty, float tz, float s,
float ra, float rx, float ry, float rz) {
rotate(nmv, ma, mx, my, mz); // orbit movement
translate(nmv, tx, ty, tz);
scale(nmv, s, s, s);
rotate(nmv, ra, rx, ry, rz); // rotation
transform_n_raster(obj, nmv, projMat);
}
/*!\brief la fonction appelée à chaque display. */
void draw(void) {
static double t0 = 0, t, dt;
t = gl4dGetElapsedTime();
dt = (t - t0) / 1000.0;
t0 = t;
float mvMat[16], projMat[16], nmv[16], cpy[16];
/* effacer l'écran et le buffer de profondeur */
gl4dpClearScreen();
clearDepth();
/* des macros facilitant le travail avec des matrices et des
* vecteurs se trouvent dans la bibliothèque GL4Dummies, dans le
* fichier gl4dm.h */
/* charger un frustum dans projMat */
MFRUSTUM(projMat, -0.005f, 0.005f, -0.005f, 0.005f, 0.01f, 1000.0f);
/* charger la matrice identité dans model-view */
MIDENTITY(mvMat);
// Y ----> 1.0 - (_ym - (_wH >> 1)) / (float)_wH * 5
if (_movement)
lookAt(mvMat, _cam.x, _cam.y, _cam.z, _cam.x - sin(_cam.theta), 1.0, _cam.z - cos(_cam.theta), 0.0, 1.0, 0.0);
else
goto_obj(mvMat);
// SUN
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _sun, _r/24.5f, 0, 1, 0, 0, 1, 0, 2, 0, 0, 0, 0);
// MERCURY
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[0], _a/87.97f, 0, 1, 0, 4.2f, 1, 0, (1/227.0f)*12, _r/59.0f, 0, 1, 0);
// VENUS
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[1], _a/224.7f, 0, 1, 0, 7.9f, 1, 0, (1/113.0f)*12, _r/243.75f, -0.1773f, -1, 0);
// EARTH
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[2], _a/365.2425f, 0, 1, 0, 10.0f, 1, 0, (1/108.0f)*12, _r, -0.234f, 1, 0);
// Moon
draw_object(nmv, projMat, _moon[0], 1, 0, 0, 0, 4.0f, 0, 0, (1/5.0f), 1, 0, 0, 0);
// MARS
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[3], _a/686.98f, 0, 1, 0, 15.2f, 1, 0, (1/208.0f)*12, _r/1.0416f, -0.252f, 1, 0);
memcpy(cpy, nmv, sizeof cpy);
// Phobos
draw_object(nmv, projMat, _moon[1], _r*4.3f, 0, 0.1f, 0, 10.0f, 0, 0, (1/5.0f), 0, 0, 0, 0);
// Deimos
draw_object(cpy, projMat, _moon[2], _r/1.5f, 0, 0.1f, 0, 25.0f, 0, 0, (1/6.0f), 0, 0, 0, 0);
// JUPITER
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[4], _a/(12 * 365.2425f), 0, 1, 0, 30.0f, 1, 0, (1/9.7f)*12, _r/0.416f, -0.031f, 1, 0);
memcpy(cpy, nmv, sizeof cpy);
// Io
draw_object(nmv, projMat, _moon[3], _r*3.0f, 0, 0.1f, 0, 3.0f, 0, 2, (1/11.2f), 0, 0, 0, 0);
// Europa
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[4], _r/2.0f, 0, 0.1f, 0, -4.0f, 0, -1, (1/13.2f), 0, 0, 0, 0);
// Ganymede
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[5], _r/3.0f, 0, 0.1f, 0, -5.0f, 0, -1.5f, (1/9.0f), 0, 0, 0, 0);
// Callisto
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[6], _r/5.0f, 0, 0.1f, 0, 6.0f, 0, -2.5f, (1/10.0f), 0, 0, 0, 0);
// SATURN
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[5], _a/(30 * 365.2425f), 0, 1, 0, 50.4f, 1, 0, (1/11.4f)*12, _r/0.4583f, -0.267f, 1, 0);
memcpy(cpy, nmv, sizeof cpy);
// Enceladus
draw_object(nmv, projMat, _moon[7], _r*5.0f, 0, 0.1f, 0, 2.0f, 0, -2.0f, (1/20.0f), 0, 0, 0, 0);
// Dione
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[8], _r*4.1f, 0, 0.1f, 0, -3.0f, 0, -0.5f, (1/18.0f), 0, 0, 0, 0);
// Rhea
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[9], _r*3.2f, 0, 0.1f, 0, 4.0f, 0, -2.5f, (1/15.0f), 0, 0, 0, 0);
// Titan
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[10], _r/4.3f, 0, 0.1f, 0, -6.0f, 0, -5.2f, (1/10.0f), 0, 0, 0, 0);
// Iapetus
memcpy(nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[11], _r/6.3f, 0, 0.1f, 0, 7.0f, 0, -3.2f, (1/14.0f), 0, 0, 0, 0);
// URANUS
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[6], _a/(84 * 365.2425f), 0, 1, 0, 65.0f, 1, 0, (1/26.8f)*12, _r/0.7083f, -0.978f, 0, 0);
memcpy(cpy, nmv, sizeof cpy);
// Ariel
draw_object(nmv, projMat, _moon[12], _r, 0.01f, 0, 0, 0, 3.0f, -2.2f, (1/20.0f), 0, 0, 0, 0);
// Umbriel
memcpy (nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[13], _r/2.0f, 0.01f, 0, 0, 0, -4.0f, -1.2f, (1/20.0f), 0, 0, 0, 0);
// Titania
memcpy (nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[14], _r/5.0f, 0.01f, 0, 0, 0, 5.0f, 0, (1/17.0f), 0, 0, 0, 0);
// Oberon
memcpy (nmv, cpy, sizeof nmv);
draw_object(nmv, projMat, _moon[15], _r/7.0f, 0.01f, 0, 0, 0, 6.0f, -4.4f, (1/17.0f), 0, 0, 0, 0);
// NEPTUNE
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[7], _a/(165 * 365.2425f), 0, 1, 0, 75.0f, 1, 0, (1/27.7f)*12, _r/0.6f, -0.283f, 1.0f, 0);
// Triton
draw_object(nmv, projMat, _moon[16], _r/5.0f, 0, 0.01f, 0, 3.0f, 0.0f, 0.0f, (1/10.0f), 0, 0, 0, 0);
// PLUTO
memcpy(nmv, mvMat, sizeof nmv); /* copie mvMat dans nmv */
draw_object(nmv, projMat, _planet[8], _a/(248 * 365.2425f), 0, 1, 0, 85.0f, 1, 0, (1/500.7f)*12, _r/6.4f, -0.119f, 1.0f, 0);
// Charon
draw_object(nmv, projMat, _moon[17], _r/5.0f, 0, 0.01f, 0, 3.0f, 0.0f, 0.0f, (1/13.0f), 0, 0, 0, 0);
/* déclarer qu'on a changé (en bas niveau) des pixels du screen */
gl4dpScreenHasChanged();
/* fonction permettant de raffraîchir l'ensemble de la fenêtre*/
gl4dpUpdateScreen(NULL);
if (!_pause){
_a += ((360.0 * dt) / 60) * _s; // 360 in 1 minute so 1 day = 1 min
_r += ((360.0 * dt) / 60) * _s; // 360 in 1 minute so 1 day = 1 min
}
}
/*!\brief intercepte l'événement clavier pour modifier les options. */
void key(int keycode) {
double step = 5.0;
int i;
switch(keycode) {
case GL4DK_UP:
if (_movement)
_cam.y += 5;
break;
case GL4DK_DOWN:
if (_movement)
_cam.y -= 5;
break;
case GL4DK_RIGHT:
if (!_pause)
_s += 30.0f;
break;
case GL4DK_LEFT:
if (!_pause)
_s -= 30.0f;
break;
case GL4DK_w:
if (_movement) {
_cam.x += -_v * step * sin(_cam.theta);
_cam.z += -_v * step * cos(_cam.theta);
}
break;
case GL4DK_s:
if (_movement) {
_cam.x += _v * step * sin(_cam.theta);
_cam.z += _v * step * cos(_cam.theta);
}
break;
case GL4DK_a:
if (_movement)
_cam.theta += step * 0.01;
break;
case GL4DK_d:
if (_movement)
_cam.theta -= step * 0.01;
break;
case GL4DK_p:
if (_pause == 0)
_pause = 1;
else
_pause = 0;
break;
case GL4DK_MINUS:
_v -= 0.01f;
if (_v < 0.01f){
_v = 0.01f;
}
break;
case GL4DK_EQUALS:
_v += 0.01f;
if (_v > 0.5f){
_v = 0.5f;
}
break;
case GL4DK_o:
if (_movement) {
if (!_overview) {
_overview = !_overview;
_cam.x = 0.0f;
_cam.y = 200.0f;
_cam.z = 0.0f;
_cam.theta = 0.0f;
} else {
_overview = !_overview;
_cam.x = 0.0f;
_cam.y = 1.0f;
_cam.z = 10.0f;
_cam.theta = 0.0f;
}
}
break;
case GL4DK_r:
_a = _r;
_p = -1;
_pause = 0;
_movement = 1;
break;
case GL4DK_q:
exit(0);
break;
case GL4DK_0:
_p = 0;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_1:
_p = 1;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_2:
_p = 2;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_3:
_p = 3;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_4:
_p = 4;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_5:
_p = 5;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_6:
_p = 6;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_7:
_p = 7;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_8:
_p = 8;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_9:
_p = 9;
/*_pause = 1;*/
_movement = 0;
_cam.x = (int)_cam.x;
_cam.y = (int)_cam.y;
_cam.z = (int)_cam.z;
break;
case GL4DK_t: /* 't' la texture */
_use_tex = !_use_tex;
if(_use_tex) {
enableSurfaceOption(_sun, SO_USE_TEXTURE);
for(i = 0; i < 18; ++i)
enableSurfaceOption(_moon[i], SO_USE_TEXTURE);
for(i = 0; i < 9; ++i)
enableSurfaceOption(_planet[i], SO_USE_TEXTURE);
} else {
disableSurfaceOption(_sun, SO_USE_TEXTURE);
for(i = 0; i < 18; ++i)
disableSurfaceOption(_moon[i], SO_USE_TEXTURE);
for(i = 0; i < 9; ++i)
disableSurfaceOption(_planet[i], SO_USE_TEXTURE);
}
break;
case GL4DK_c: /* 'c' utiliser la couleur */
_use_color = !_use_color;
if(_use_color) {
enableSurfaceOption(_sun, SO_USE_COLOR);
for(i = 0; i < 18; ++i)
enableSurfaceOption(_moon[i], SO_USE_COLOR);
for(i = 0; i < 9; ++i)
enableSurfaceOption(_planet[i], SO_USE_COLOR);
} else {
disableSurfaceOption(_sun, SO_USE_COLOR);
for(i = 0; i < 18; ++i)
disableSurfaceOption(_moon[i], SO_USE_COLOR);
for(i = 0; i < 9; ++i)
disableSurfaceOption(_planet[i], SO_USE_COLOR);
}
break;
case GL4DK_l: /* 'l' utiliser l'ombrage par la méthode Gouraud */
_use_lighting = !_use_lighting;
if(_use_lighting) {
enableSurfaceOption(_sun, SO_USE_LIGHTING);
for(i = 0; i < 18; ++i)
enableSurfaceOption(_moon[i], SO_USE_LIGHTING);
for(i = 0; i < 9; ++i)
enableSurfaceOption(_planet[i], SO_USE_LIGHTING);
} else {
disableSurfaceOption(_sun, SO_USE_LIGHTING);
for(i = 0; i < 18; ++i)
disableSurfaceOption(_moon[i], SO_USE_LIGHTING);
for(i = 0; i < 9; ++i)
disableSurfaceOption(_planet[i], SO_USE_LIGHTING);
}
break;
default: break;
}
}
// handler of mouse motion.
static void pmotion(int x, int y) {
if (_movement){
_xm = x;
_ym = y;
_cam.theta = -(_xm - (_wW >> 1)) / (float)_wW*10;
}
}
// handler of mouse buttons.
static void mouse(int button, int state, int x, int y) {
if (_movement){
double dtheta = M_PI;
if (button == GL4D_BUTTON_LEFT)
_cam.y += dtheta;
if (button == GL4D_BUTTON_RIGHT)
_cam.y -= dtheta;
if (button == GL4D_BUTTON_MIDDLE)
_cam.y = 1.0f;
}
}
/*!\brief à appeler à la sortie du programme. */
void sortie(void) {
int i;
Mix_CloseAudio();
Mix_Quit();
if(_sun) {
freeSurface(_sun);
_sun = NULL;
}
for(i = 0; i < 18; ++i) {
if(_moon[i]){
freeSurface(_moon[i]);
_moon[i] = NULL;
}
if(i < 9) {
if(_planet[i]){
freeSurface(_planet[i]);
_planet[i] = NULL;
}
}
}
if (bsound)
Mix_FreeChunk(bsound);
bsound = NULL;
/* libère tous les objets produits par GL4Dummies, ici
* principalement les screen */
gl4duClean(GL4DU_ALL);
}
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