/* Send a new blob travelling upward.
This blob will actually be composed of N metaballs that are near
each other.
*/
static void
launch_balls (ModeInfo *mi)
{
lavalite_configuration *bp = &bps[MI_SCREEN(mi)];
metaball *b0 = get_ball (mi);
int i;
if (!b0) return;
reset_ball (mi, b0);
for (i = 0; i < bp->blobs_per_group; i++)
{
metaball *b1 = get_ball (mi);
if (!b1) break;
*b1 = *b0;
reset_ball (mi, b1);
b1->leader = b0;
# define FROB(FIELD,AMT) \
b1->FIELD += (bellrand(AMT) * b0->FIELD)
/* FROB (pos_r, 0.7); */
/* FROB (pos_th, 0.7); */
FROB (dr, 0.8);
FROB (dz, 0.6);
# undef FROB
}
}
/**
* Draw ball animation
*/
void draw_balls(SDL_Surface* screen, int time)
{
SDL_Rect spritepos;
// Clear screen
SDL_FillRect(screen, NULL, 0x00000000);
// Draw balls
for(int i = 0; i < NUM_BALLS; i++)
{
// Advance ball
balls[i].x += balls[i].speedx;
balls[i].angle += balls[i].dangle;
balls[i].amplitude *= 0.995;
spritepos.x = balls[i].x;
spritepos.y = HEIGHT - 32 - abs(balls[i].amplitude * fast_sin((balls[i].angle / 180.0) * MATH_PI));
SDL_BlitSurface(ball_surface[balls[i].color], NULL, screen, &spritepos);
// Reset ball if needed
if(balls[i].x > WIDTH)
reset_ball(i);
}
}
static void command (int cmd)
{
switch (cmd)
{
case ' ':
reset_ball();
break;
}
}
t_ball *init_ball(void)
{
t_ball *ball;
ball = (t_ball *)ft_memalloc(sizeof(t_ball));
if (!ball)
exit(EXIT_FAILURE);
reset_ball(ball);
return (ball);
}
/* Generate the blobs that don't move: the ones at teh top and bottom
that are part of the scenery.
*/
static void
generate_static_blobs (ModeInfo *mi)
{
lavalite_configuration *bp = &bps[MI_SCREEN(mi)];
metaball *b0, *b1;
int i;
b0 = get_ball (mi);
if (!b0) abort();
b0->static_p = True;
b0->alive_p = True;
b0->R = 0.6;
b0->r = 0.3;
/* the giant blob at the bottom of the bottle.
*/
b0->pos_r = 0;
b0->pos_th = 0;
b0->dr = 0;
b0->dz = 0;
b0->x = 0;
b0->y = 0;
b0->z = -0.43;
/* the small blob at the top of the bottle.
*/
b1 = get_ball (mi);
if (!b1) abort();
*b1 = *b0;
b1->R = 0.16;
b1->r = 0.135;
b1->z = 1.078;
/* Some extra blobs at the bottom of the bottle, to jumble the surface.
*/
for (i = 0; i < bp->blobs_per_group; i++)
{
b1 = get_ball (mi);
if (!b1) abort();
reset_ball (mi, b1);
b1->static_p = True;
b1->z = frand(0.04);
b1->dr = 0;
b1->dz = 0;
}
}
void update_ball(t_ball *ball, t_list_node *bricks)
{
int i;
t_game *game;
game = get_game();
i = 0;
while (i < 10)
{
ball->x += (ball->speedx) / 10.0f;
ball->y += (ball->speedy) / 10.0f;
handle_bounds(ball);
if (!INVINCIBLE_MODE && is_ball_outside(ball))
{
game->cur_level->lives--;
reset_ball(ball);
}
check_collisions(ball, bricks);
i++;
}
}
int main(int argc, char** argv)
{
SDL_Event event;
int keypress = 0;
int t = 0;
// Init everything
sdl_init();
init_sin_table();
// Init random number generator
srand(clock());
// Init balls
for(int i = 0; i < NUM_BALLS; i++)
reset_ball(i);
// Create sprites
ball_surface[0] = sprite_create_ball(1.0, 0.0, 0.0);
ball_surface[1] = sprite_create_ball(0.0, 1.0, 0.0);
ball_surface[2] = sprite_create_ball(0.0, 0.0, 1.0);
// Loop until the end
while(!keypress)
{
// Lock SDL surface if needed
if(SDL_MUSTLOCK(screen))
if(SDL_LockSurface(screen) < 0)
exit(EXIT_FAILURE);
// Draw the plasma
draw_balls(screen, t);
// Unlock the SDL surface if needed
if(SDL_MUSTLOCK(screen))
SDL_UnlockSurface(screen);
// Flip surfaces
SDL_UpdateRect(screen, 0, 0, 0, 0);
// Handle SDL events
while(SDL_PollEvent(&event))
{
switch (event.type)
{
case SDL_QUIT:
case SDL_KEYDOWN:
keypress = 1;
break;
}
}
// Sleep until next frame (25 FPS)
usleep(40000);
// Advance time
t++;
}
// Exit gracefully
SDL_Quit();
return EXIT_SUCCESS;
}
int main (int argc, char **argv)
{
dMass m;
dMatrix3 R;
// setup pointers to drawstuff callback functions
dsFunctions fn;
fn.version = DS_VERSION;
fn.start = &start;
fn.step = &simLoop;
fn.command = &command;
fn.stop = 0;
fn.path_to_textures = "../../drawstuff/textures";
if(argc==2)
fn.path_to_textures = argv[1];
// create world
world = dWorldCreate();
space = dHashSpaceCreate (0);
contactgroup = dJointGroupCreate (0);
dWorldSetGravity (world,0,0,-9.8);
dWorldSetQuickStepNumIterations (world, 64);
// Create a static world using a triangle mesh that we can collide with.
int numv = sizeof(world_vertices)/(3*sizeof(float));
int numi = sizeof(world_indices)/ sizeof(int);
printf("numv=%d, numi=%d\n", numv, numi);
dTriMeshDataID Data = dGeomTriMeshDataCreate();
// fprintf(stderr,"Building Single Precision Mesh\n");
dGeomTriMeshDataBuildSingle
(
Data,
world_vertices,
3 * sizeof(float),
numv,
world_indices,
numi,
3 * sizeof(int)
);
world_mesh = dCreateTriMesh(space, Data, 0, 0, 0);
dGeomTriMeshEnableTC(world_mesh, dSphereClass, false);
dGeomTriMeshEnableTC(world_mesh, dBoxClass, false);
dGeomSetPosition(world_mesh, 0, 0, 0.5);
dRSetIdentity(R);
//dIASSERT(dVALIDMAT3(R));
dGeomSetRotation (world_mesh, R);
float sx=0.0, sy=3.40, sz=6.80;
sphbody = dBodyCreate (world);
dMassSetSphere (&m,1,RADIUS);
dBodySetMass (sphbody,&m);
sphgeom = dCreateSphere(0, RADIUS);
dGeomSetBody (sphgeom,sphbody);
reset_ball();
dSpaceAdd (space, sphgeom);
// run simulation
dsSimulationLoop (argc,argv,352,288,&fn);
// Causes segm violation? Why?
// (because dWorldDestroy() destroys body connected to geom; must call first!)
dGeomDestroy(sphgeom);
dGeomDestroy (world_mesh);
dJointGroupEmpty (contactgroup);
dJointGroupDestroy (contactgroup);
dSpaceDestroy (space);
dWorldDestroy (world);
return 0;
}