-/* thebox --- 3D bouncing balls that explode */
+/* boxed --- 3D bouncing balls that explode */
#if 0
static const char sccsid[] = "@(#)boxed.c 0.9 01/09/26 xlockmore";
* as an OpenGL screensaver for the xscreensaver package.
* Lots of hardcoded values still in place. Also, there are some
* copy/paste leftovers from the gears hack. opts don't work.
+ *
+ * 2005: opts work. added options -balls, -ballsize, -explosion
+ *
*/
#include <X11/Intrinsic.h>
# define boxed_opts xlockmore_opts
# define DEF_SPEED "0.5"
+# define DEF_BALLS "25"
+# define DEF_BALLSIZE "2.0"
+# define DEF_EXPLOSION "25.0f"
# define DEFAULTS "*delay: 20000 \n" \
"*showFPS: False \n" \
"*wireframe: False \n"
#define rnd() (frand(1.0))
GLfloat speed; /* jwz -- overall speed factor applied to all motion */
+int cfg_balls;
+GLfloat cfg_ballsize;
+GLfloat cfg_explosion;
static XrmOptionDescRec opts[] = {
{"-speed", ".boxed.speed", XrmoptionSepArg, 0},
+ {"-balls", ".boxed.balls", XrmoptionSepArg, 0},
+ {"-ballsize", ".boxed.ballsize", XrmoptionSepArg, 0},
+ {"-explosion", ".boxed.explosion", XrmoptionSepArg, 0},
};
static argtype vars[] = {
{&speed, "speed", "Speed", DEF_SPEED, t_Float},
+ {&cfg_balls, "balls", "Balls", DEF_BALLS, t_Int},
+ {&cfg_ballsize, "ballsize", "Ball Size", DEF_BALLSIZE, t_Float},
+ {&cfg_explosion, "explosion", "Exlosion", DEF_BALLSIZE, t_Float},
};
ModeSpecOpt boxed_opts = {countof(opts), opts, countof(vars), vars, NULL};
#define TRUE 1
#define FALSE 0
-/* rendering defines */
-
-
-/* box size */
-#define BOX_SIZE 20.0f
-
/* camera */
#define CAM_HEIGHT 100.0f
#define CAMDISTANCE_MIN 20.0
#define SPHERE_VERTICES (2+MESH_SIZE*MESH_SIZE*2)
#define SPHERE_INDICES ((MESH_SIZE*4 + MESH_SIZE*4*(MESH_SIZE-1))*3)
-#define EXPLOSION 10.0f
-#define MAXBALLS 50;
-#define NUMBALLS 12;
-#define BALLSIZE 3.0f;
-
/*
**-----------------------------------------------------------------------------
** Typedefs
float cam_x_speed, cam_z_speed, cam_y_speed;
boxed_config config;
float tic;
+ float camtic;
vectorf spherev[SPHERE_VERTICES];
GLint spherei[SPHERE_INDICES];
ballman bman;
newball->dir.z = (0.5-rnd()) * speed;
newball->offside = 0;
newball->bounced = FALSE;
- newball->radius = BALLSIZE;
- while (r+g+b < 1.7f ) {
+ newball->radius = cfg_ballsize;
+ while (r+g+b < 1.8f ) {
newball->color.x = r=rnd();
newball->color.y = g=rnd();
newball->color.z = b=rnd();
for (b=0;b<bman->num_balls;b++) {
- GLfloat gravity = 0.15f * speed;
+ GLfloat gravity = 0.30f * speed;
/* apply gravity */
bman->balls[b].dir.y -= gravity;
addvectors(&bman->balls[b].loc,&bman->balls[b].loc,&bman->balls[b].dir);
/* boundary check */
if (bman->balls[b].loc.y < bman->balls[b].radius) { /* ball onder bodem? (bodem @ y=0) */
- if ((bman->balls[b].loc.x < -100.0) ||
- (bman->balls[b].loc.x > 100.0) ||
- (bman->balls[b].loc.z < -100.0) ||
- (bman->balls[b].loc.z > 100.0)) {
+ if ((bman->balls[b].loc.x < -95.0) ||
+ (bman->balls[b].loc.x > 95.0) ||
+ (bman->balls[b].loc.z < -95.0) ||
+ (bman->balls[b].loc.z > 95.0)) {
if (bman->balls[b].loc.y < -1000.0)
createball(&bman->balls[b]);
} else {
scalevector(&tman->vertices[pos+1],&tman->vertices[pos+1],scale);
scalevector(&tman->vertices[pos+2],&tman->vertices[pos+2],scale);
+ tman->vertices[pos+0].x += avgdir.x;
+ tman->vertices[pos+0].y += avgdir.y;
+ tman->vertices[pos+0].z += avgdir.z;
+ tman->vertices[pos+1].x += avgdir.x;
+ tman->vertices[pos+1].y += avgdir.y;
+ tman->vertices[pos+1].z += avgdir.z;
+ tman->vertices[pos+2].x += avgdir.x;
+ tman->vertices[pos+2].y += avgdir.y;
+ tman->vertices[pos+2].z += avgdir.z;
+
/* bereken nieuwe richting */
scalevector(&tman->tris[i].dir,&avgdir,explosion);
dvect.x = (0.1f - 0.2f*rnd());
/* boundary check */
if (t->tris[b].far) continue;
if (t->tris[b].loc.y < 0) { /* onder bodem ? */
- if ((t->tris[b].loc.x > -100.0f) &
- (t->tris[b].loc.x < 100.0f) &
- (t->tris[b].loc.z > -100.0f) &
- (t->tris[b].loc.z < 100.0f)) { /* in veld */
+ if ((t->tris[b].loc.x > -95.0f) &
+ (t->tris[b].loc.x < 95.0f) &
+ (t->tris[b].loc.z > -95.0f) &
+ (t->tris[b].loc.z < 95.0f)) { /* in veld */
t->tris[b].dir.y = -(t->tris[b].dir.y);
t->tris[b].loc.y = -t->tris[b].loc.y;
scalevector(&t->tris[b].dir,&t->tris[b].dir,0.80f); /* dampening */
*/
void setdefaultconfig(boxed_config *config)
{
- config->numballs = NUMBALLS;
+ cfg_balls = MAX(3,MIN(40,cfg_balls));
+ cfg_ballsize = MAX(1.0f,MIN(5.0f,cfg_ballsize));
+ cfg_explosion = MAX(0.0f,MIN(50.0f,cfg_explosion));
+ config->numballs = cfg_balls;
config->textures = TRUE;
config->transparent = FALSE;
- config->explosion = 25.0f;
- config->ballsize = BALLSIZE;
+ config->explosion = cfg_explosion;
+ config->ballsize = cfg_ballsize;
config->camspeed = 35.0f;
}
glLoadIdentity();
gp->tic += 0.01f;
-
+ gp->camtic += 0.01f + 0.01f * sin(gp->tic * speed);
+
/* rotate camera around (0,0,0), looking at (0,0,0), up is (0,1,0) */
- dcam = CAMDISTANCE_MIN + (CAMDISTANCE_MAX - CAMDISTANCE_MIN) + (CAMDISTANCE_MAX - CAMDISTANCE_MIN)*cos((gp->tic/CAMDISTANCE_SPEED) * speed);
- v1.x = dcam * sin((gp->tic/gp->cam_x_speed) * speed);
- v1.z = dcam * cos((gp->tic/gp->cam_z_speed) * speed);
- v1.y = CAM_HEIGHT * sin((gp->tic/gp->cam_y_speed) * speed) + 1.02 * CAM_HEIGHT;
+ dcam = CAMDISTANCE_MIN + (CAMDISTANCE_MAX - CAMDISTANCE_MIN) + (CAMDISTANCE_MAX - CAMDISTANCE_MIN)*cos((gp->camtic/CAMDISTANCE_SPEED) * speed);
+ v1.x = dcam * sin((gp->camtic/gp->cam_x_speed) * speed);
+ v1.z = dcam * cos((gp->camtic/gp->cam_z_speed) * speed);
+ v1.y = CAM_HEIGHT * sin((gp->camtic/gp->cam_y_speed) * speed) + 1.02 * CAM_HEIGHT;
gluLookAt(v1.x,v1.y,v1.z,0.0,0.0,0.0,0.0,1.0,0.0);
if (!wire) {
gp->cam_y_speed = 1.0f/((float)gp->config.camspeed/250.0 + rnd()*((float)gp->config.camspeed/250.0));
if (rnd() < 0.5f) gp->cam_x_speed = -gp->cam_x_speed;
if (rnd() < 0.5f) gp->cam_z_speed = -gp->cam_z_speed;
+
+ /* define initial cam position */
+ gp->tic = gp->camtic = rnd() * 100.0f;
-
+ /* define tex1 (bottom plate) */
gp->tex1 = (char *)malloc(3*width*height*sizeof(GLuint));
texpixels = 256*256; /*width*height;*/
texpixeldata = header_data;
projects / xscreensaver / blobdiff