static bool test_item_retrieval(short polygon_index1, world_point3d *location1, world_point3d *location2)
{
bool valid_retrieval= true;
auto polygon_index = polygon_index1;
do
{
auto line_index= find_line_crossed_leaving_polygon(polygon_index, (world_point2d *) location1,
(world_point2d *) location2);
if (line_index!=NONE)
{
polygon_index= find_adjacent_polygon(polygon_index, line_index);
if (LINE_IS_SOLID(get_line_data(line_index)))
valid_retrieval= false;
if (polygon_index!=NONE)
{
polygon_data *polygon= get_polygon_data(polygon_index);
if (polygon->type==_polygon_is_platform)
{
platform_data *platform= get_platform_data(polygon->permutation);
if (PLATFORM_IS_MOVING(platform)) valid_retrieval= false;
}
}
}
else
{
polygon_index= NONE;
}
}
while (polygon_index!=NONE && valid_retrieval);
return valid_retrieval;
}
static short find_action_key_target(
short player_index,
world_distance range,
short *target_type)
{
struct player_data *player= get_player_data(player_index);
short current_polygon= player->camera_polygon_index;
world_point2d destination;
boolean done= FALSE;
short itemhit, line_index;
struct polygon_data *polygon;
/* Should we use this one, the physics one, or the object one? */
ray_to_line_segment((world_point2d *) &player->location, &destination, player->facing, range);
// dprintf("#%d(#%d,#%d) --> (#%d,#%d) (#%d along #%d)", current_polygon, player->location.x, player->location.y, destination.x, destination.y, range, player->facing);
itemhit= NONE;
while (!done)
{
line_index= find_line_crossed_leaving_polygon(current_polygon, (world_point2d *) &player->location, &destination);
if (line_index==NONE)
{
done= TRUE;
}
else
{
struct line_data *line;
short original_polygon;
line= get_line_data(line_index);
original_polygon= current_polygon;
current_polygon= find_adjacent_polygon(current_polygon, line_index);
// dprintf("leaving polygon #%d through line #%d to polygon #%d", original_polygon, line_index, current_polygon);
if (current_polygon!=NONE)
{
polygon= get_polygon_data(current_polygon);
/* We hit a platform */
if (polygon->type==_polygon_is_platform && line_is_within_range(player->monster_index, line_index, MAXIMUM_PLATFORM_ACTIVATION_RANGE) &&
platform_is_legal_player_target(polygon->permutation))
{
// dprintf("found platform #%d in %p", polygon->permutation, polygon);
itemhit= polygon->permutation;
*target_type= _target_is_platform;
done= TRUE;
}
}
else
{
done= TRUE;
}
/* Slammed a wall */
if (line_is_within_range(player->monster_index, line_index, MAXIMUM_CONTROL_ACTIVATION_RANGE))
{
if (line_side_has_control_panel(line_index, original_polygon, &itemhit))
{
if (switch_can_be_toggled(itemhit, TRUE))
{
*target_type= _target_is_control_panel;
done= TRUE;
}
else
{
itemhit= NONE;
}
}
}
}
}
return itemhit;
}