static void visit_coords(map_t *m,int startX, int startY, int x, int y, int dx, int dy,
TCOD_list_t active_views, bool light_walls) {
// top left
int tlx=x, tly=y+STEP_SIZE;
// bottom right
int brx=x+STEP_SIZE, bry=y;
view_t *view=NULL;
while (current_view != (view_t **)TCOD_list_end(active_views)) {
view=*current_view;
if ( ! BELOW_OR_COLINEAR(&view->steep_line,brx,bry) ) {
break;
}
current_view++;
}
if ( current_view == (view_t **)TCOD_list_end(active_views) || ABOVE_OR_COLINEAR(&view->shallow_line,tlx,tly)) {
// no more active view
return;
}
if ( !is_blocked(m,view,startX,startY,x,y,dx,dy,light_walls) ) return;
if ( ABOVE(&view->shallow_line,brx,bry)
&& BELOW(&view->steep_line,tlx,tly)) {
// view blocked
// slow !
TCOD_list_remove_iterator(active_views,(void **)current_view);
} else if ( ABOVE(&view->shallow_line,brx,bry)) {
// shallow bump
add_shallow_bump(tlx,tly,view);
check_view(active_views,current_view);
} else if (BELOW(&view->steep_line,tlx,tly)) {
// steep bump
add_steep_bump(brx,bry,view);
check_view(active_views,current_view);
} else {
// view splitted
int offset=startX+x*dx/STEP_SIZE + (startY+y*dy/STEP_SIZE)*m->width;
view_t *shallower_view= & views[offset];
int view_index=current_view - (view_t **)TCOD_list_begin(active_views);
view_t **shallower_view_it;
view_t **steeper_view_it;
*shallower_view=**current_view;
// slow !
shallower_view_it = (view_t **)TCOD_list_insert_before(active_views,shallower_view,view_index);
steeper_view_it=shallower_view_it+1;
current_view=shallower_view_it;
add_steep_bump(brx,bry,shallower_view);
if (!check_view(active_views,shallower_view_it)) steeper_view_it--;
add_shallow_bump(tlx,tly,*steeper_view_it);
check_view(active_views,steeper_view_it);
if ( view_index > TCOD_list_size(active_views)) current_view=(view_t **)TCOD_list_end(active_views);
}
}
/*
+-----------------------------------------------------------+
* @desc FIXME
+-----------------------------------------------------------+
*/
static void
visit_coords(RLFL_map_t *m,int startX, int startY, int x, int y, int dx, int dy,
RLFL_list_t active_views, bool light_walls)
{
// top left
int tlx = x, tly = (y+1);
// bottom right
int brx = (x+1), bry = y;
int realX = (x*dx), realY = (y*dy);
int offset;
view_t *view = NULL;
while (current_view != (view_t **)RLFL_list_end(active_views))
{
view = *current_view;
if ( !BELOW_OR_COLINEAR(&view->steep_line, brx, bry) ) {
break;
}
current_view++;
}
if(current_view == (view_t **)RLFL_list_end(active_views)
|| ABOVE_OR_COLINEAR(&view->shallow_line, tlx, tly)) {
return;
}
offset = (startX + realX + ((startY+realY) * m->width));
if (light_walls || RLFL_has_flag(m->mnum, startX+realX, startY+realY, CELL_OPEN)) {
RLFL_set_flag(m->mnum, startX+realX, startY+realY, CELL_FOV);
}
if (RLFL_has_flag(m->mnum, startX+realX, startY+realY, CELL_OPEN))
return;
if ( ABOVE(&view->shallow_line, brx, bry)
&& BELOW(&view->steep_line, tlx, tly)) {
// slow !
RLFL_list_remove_iterator(active_views, (void **)current_view);
}
else if( ABOVE(&view->shallow_line, brx, bry))
{
add_shallow_bump(tlx, tly, view);
check_view(active_views, current_view);
}
else if(BELOW(&view->steep_line, tlx, tly))
{
add_steep_bump(brx,bry,view);
check_view(active_views,current_view);
}
else
{
view_t *shallower_view = &views[offset];
int view_index = (current_view - (view_t **)RLFL_list_begin(active_views));
view_t **shallower_view_it;
view_t **steeper_view_it;
*shallower_view = **current_view;
// slow !
shallower_view_it = (view_t **)RLFL_list_insert(active_views, shallower_view, view_index);
steeper_view_it = shallower_view_it+1;
current_view = shallower_view_it;
add_steep_bump(brx, bry, shallower_view);
if (!check_view(active_views,shallower_view_it)) {
steeper_view_it--;
}
add_shallow_bump(tlx, tly, *steeper_view_it);
check_view(active_views, steeper_view_it);
if ( view_index > RLFL_list_size(active_views)) {
current_view = (view_t **)RLFL_list_end(active_views);
}
}
}