con = 0;
if (room == room_forest_chase1_ch1 || room == room_forest_chase2_ch1)
{
    tilearray = tile_get_ids_at_depth_ch1(99999);
    for (var i = 0; i < array_length_1d(tilearray); i++)
        tile_set_alpha_ch1(tilearray[i], 0);
}
if (room == room_forest_chase1_ch1)
    con = 1;
if (room == room_forest_chase2_ch1)
    con = 20;
if (global.plot >= 150)
{
    con = 999;
    instance_destroy();
}
dmax = 20;
siner = 0;