Initial code

Windows Code Release 3/LOCUTILS.H

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+void set_terrain_blocked();
+short ex_sqrt(short val);
+short dist(location p1,location p2);
+short vdist(location p1,location p2) ;
+Boolean adjacent(location p1,location p2);
+Boolean point_onscreen(location center,location check);
+short set_direction (location old_pt, location new_pt);
+location global_to_local(location global);
+location local_to_global(location local);
+Boolean loc_off_world(location p1);
+Boolean loc_off_act_area(location p1);
+location get_cur_loc();
+short short_can_see(shortloc p1,shortloc p2);
+Boolean is_lava(short x,short y);
+short can_see(location p1,location p2,short mode);
+short get_obscurity(short x,short y);
+unsigned char coord_to_ter(short x,short y);
+Boolean is_container(location loc);
+void update_explored(location dest);
+Boolean is_blocked(location to_check);
+Boolean monst_on_space(location loc,short m_num);
+short monst_there(location where) ;
+Boolean monst_can_be_there(location loc,short m_num);
+Boolean monst_adjacent(location loc,short m_num);
+Boolean monst_can_see(short m_num,location l);
+Boolean party_can_see_monst(short m_num);
+Boolean can_see_monst(location l,short m_num);
+Boolean outd_is_blocked(location to_check);
+Boolean special_which_blocks_monst(location to_check);
+Boolean is_special(location to_check);
+Boolean outd_is_special(location to_check);
+Boolean impassable(unsigned char terrain_to_check);
+short get_blockage(unsigned char terrain_type);
+short light_radius();
+Boolean pt_in_light(location from_where,location to_where) ;// Assumes, of course, in town or combat
+Boolean combat_pt_in_light(location to_where);
+Boolean party_sees_a_monst(); // Returns true is a hostile monster is in sight.
+short party_can_see(location where);
+location push_loc(location from_where,location to_where);
+Boolean spot_impassable(short i,short  j);
+void swap_ter(short i,short j,unsigned char ter1,unsigned char ter2);
+void alter_space(short i,short j,unsigned char ter);