void
init_traps(void) {
/*
* Fill the exception area with branch instructions so
* if we get something we don't expect, the kernel will hardcrash.
*/
set_trap(SH_EXC_GENERAL, __exc_unexpected, 0x00);
set_trap(SH_EXC_TLBMISS, __exc_unexpected, 0x00);
set_trap(SH_EXC_INTR, __exc_unexpected, 0x00);
install_traps();
}
void change_level (char fromlevel, char tolevel, char rewrite_level)
{
struct level * thislevel = NULL;
Player.sx = -1;
Player.sy = -1; /* sanctuary effect dispelled */
thislevel = findlevel(Dungeon, tolevel);
deepest[Current_Environment] = max(deepest[Current_Environment], tolevel);
if (!thislevel)
{
thislevel = (level*) checkmalloc(sizeof(levtype));
clear_level(thislevel);
Level = thislevel;
Level->next = Dungeon;
Dungeon = Level;
}
Level = thislevel;
if ((!Level->generated) || rewrite_level)
{
initrand(Current_Environment, tolevel);
Level->environment = Current_Environment;
Level->depth = tolevel;
Level->generated = true;
switch (Current_Environment)
{
case E_CAVES:
Level->level_width = CAVES_WIDTH;
Level->level_length = CAVES_LENGTH;
if ((0 == random_range(4)) && (tolevel < MaxDungeonLevels))
room_level();
else
cavern_level();
break;
case E_SEWERS:
Level->level_width = SEWERS_WIDTH;
Level->level_length = SEWERS_LENGTH;
if ((0 == random_range(4)) && (tolevel < MaxDungeonLevels))
room_level();
else
sewer_level();
break;
case E_CASTLE:
Level->level_width = CASTLE_WIDTH;
Level->level_length = CASTLE_LENGTH;
room_level();
break;
case E_PALACE: /* PGM TODO */
Level->level_width = PALACE_WIDTH;
Level->level_length = PALACE_LENGTH;
room_level();
break;
case E_ASTRAL:
Level->level_width = ASTRAL_WIDTH;
Level->level_length = ASTRAL_LENGTH;
maze_level();
break;
case E_VOLCANO:
Level->level_width = VOLCANO_WIDTH;
Level->level_length = VOLCANO_LENGTH;
switch (random_range(3))
{
case 0:
cavern_level();
break;
case 1:
room_level();
break;
case 2:
maze_level();
break;
}
break;
default:
print3("This dungeon not implemented!");
assert(false);
break;
}
install_traps();
install_specials();
make_stairs(fromlevel);
make_stairs(fromlevel);
initrand(E_RESTORE, 0);
populate_level(Current_Environment);
stock_level();
}
find_stairs(fromlevel, tolevel);
ScreenOffset = Player.y - (ScreenLength/2);
show_screen();
screencheck(Player.x,Player.y);
drawvision(Player.x,Player.y);
/* synchronize with player on level change */
Player.click = (Tick+1)%60;
roomcheck();
}
