void geom_step(float dt)
{
int i;
sol_move(&goal.vary, NULL, dt);
sol_move(&jump.vary, NULL, dt);
for (i = 0; i < GEOM_MAX; i++)
sol_move(&item[i].vary, NULL, dt);
ball_step(dt);
}
void move_ball(jball *ball){
int xstep, ystep;
int collision_on_x, collision_on_y;
jwall *game_wall = NULL;
collision_on_x = wall_or_ball_located_to(ball->x_dir,ball->x_loc,ball->y_loc);
collision_on_y = wall_or_ball_located_to(ball->y_dir,ball->x_loc,ball->y_loc);
// We need to make the collision was not caused by an in game wall
// because we do not want to change direction on that, plus
// we want to disable that wall
if(collision_on_x == 1 && collision_on_y == 1){
game_wall = game_wall_at(ball->x_loc+ball_step(ball->x_dir),
ball->y_loc+ball_step(ball->y_dir));
if(game_wall != NULL){
collision_on_x = 0;
collision_on_y = 0;
}
}
else if(collision_on_x == 1){
game_wall = game_wall_at(ball->x_loc+ball_step(ball->x_dir),
ball->y_loc);
if(game_wall != NULL){
collision_on_x = 0;
}
}
else if(collision_on_y == 1){
game_wall = game_wall_at(ball->x_loc,
ball->y_loc+ball_step(ball->y_dir));
if(game_wall != NULL){ // This collision doesn't count, we'll keep going in the y_dir
collision_on_y = 0;
}
}
deactivate_game_wall(game_wall); // It checks for NULL
ball->x_dir = new_ball_dir(collision_on_x,ball->x_dir);
ball->y_dir = new_ball_dir(collision_on_y,ball->y_dir);
xstep = ball_step(ball->x_dir);
ystep = ball_step(ball->y_dir);
ball->x_loc = ball->x_loc+xstep;
ball->y_loc = ball->y_loc+ystep;
return;
}
