double ft_tan(double radian)
{
if (ft_cos(radian) != 0)
return (ft_sin(radian) / ft_cos(radian));
else
return (ft_sin(radian) / 0.0000001);
}
double ft_dist_corr(t_win *win, double dist, int x)
{
double alpha;
double ray_ang;
ray_ang = (double)CAM_FOV / (double)win->width;
alpha = ray_ang * (x - ((double)win->width / 2));
return (ABS(dist * ft_cos(alpha)));
}
t_pix *ft_get_v_inter(t_win *win, int x)
{
t_pix *pix;
if ((!(pix = (t_pix*)malloc(sizeof(t_pix)))))
ft_ferror(ERR_MALLOC);
pix->ang = ft_get_alpha(win, x);
if (pix->ang == 90 || pix->ang == 270)
return (NULL);
ft_set_v_inter(win, pix);
pix->dist = ft_dist_corr(win, (CAM_X - pix->x) / ft_cos(pix->ang), x);
return (pix);
}
void ft_key_up(t_win *win)
{
t_pix pix;
t_pix *inter;
inter = ft_get_shorter_inter(win, WIN_WIDTH / 2);
pix.x = CAM_X + ft_cos(CAM_ANG) * M_RUN_SPD;
pix.y = CAM_Y + ft_sin(CAM_ANG) * M_RUN_SPD;
if (inter->dist > M_RUN_SPD)
{
CAM_X = pix.x;
CAM_Y = pix.y;
}
free(inter);
}
void draw_circle(t_bal *bal, t_env *e)
{
float angle;
angle = 0.0;
glBegin(GL_TRIANGLE_FAN);
if (e->lives == 3)
glColor3f(0.2, 0.9, 0.6);
else if (e->lives == 2)
glColor3f(0.9, 0.2, 0.6);
else if (e->lives == 1)
glColor3f(0.2, 0.6, 0.9);
glVertex2f(bal->x1, bal->y1);
while (angle <= 2 * 3.14159265)
{
bal->x2 = bal->x1 + ft_sin(angle) * bal->radius;
bal->y2 = bal->y1 + ft_cos(angle) * bal->radius;
glVertex2f(bal->x2, bal->y2);
angle += 0.005;
}
glEnd();
}
double ft_tan(double angle)
{
if (angle == 90)
return (2000000000);
return (ft_sin(angle) / ft_cos(angle));
}
