// start()
// ... 게임 플레이 전 여러가지를 처리한다.
//
ReturnCode SnakeGame::start()
{
this->initialize(); // 점수와 먹이위치를 초기화한다.
snake_.initialize(); // 뱀의 길이 및 위치를 초기화한다.
display_.clear();
display_.print_prompt("Do you want to play? (y/n) ");
int key;
do
{
key = getch();
}
while (key != 'y' && key != 'Y' && key != 'n' && key != 'N');
switch (key)
{
case 'y':
case 'Y':
make_food();
display_.clear();
display_.print_wall();
display_.print_snake(snake_);
display_.print_food(food_position_);
return RETURN_SUCCESS;
case 'n':
case 'N':
return RETURN_EXIT;
default:
return RETURN_UNKNOWN;
}
}
/* make a random new object, returning pointer */
Object* create_object(int itemlevel)
{
Object* newObject;
int r;
int ok = false;
while (! ok) {
newObject = ((Object*) checkmalloc(sizeof(Object)));
r= random_range(135);
if (r < 20) make_thing(newObject,-1);
else if (r < 40) make_food(newObject,-1);
else if (r < 50) make_scroll(newObject,-1);
else if (r < 60) make_potion(newObject,-1);
else if (r < 70) make_weapon(newObject,-1);
else if (r < 80) make_armor(newObject,-1);
else if (r < 90) make_shield(newObject,-1);
else if (r < 100) make_stick(newObject,-1);
else if (r < 110) make_boots(newObject,-1);
else if (r < 120) make_cloak(newObject,-1);
else if (r < 130) make_ring(newObject,-1);
else make_artifact(newObject,-1);
/* not ok if object is too good for level, or if unique and already made */
/* 1/100 chance of finding object if too good for level */
ok = ((newObject->uniqueness < UNIQUE_MADE) &&
((newObject->level < itemlevel+random_range(3))
|| (random_range(100)==23)));
if (!ok)
{
free_obj( newObject, true );
}
}
if (newObject->uniqueness == UNIQUE_UNMADE)
Objects[newObject->id].uniqueness=UNIQUE_MADE;
return(newObject);
}
/* gain for an item */
void acquire(int blessing)
{
char otype;
int index,id = ABORT;
pob newthing;
if (blessing < 0) {
index = random_item();
if (index == ABORT)
mprint("You feel fortunate.");
else {
print1("Smoke drifts out of your pack.... ");
print2("Destroyed: ");
nprint2(itemid(Player.possessions[index]));
morewait();
dispose_lost_objects(1,Player.possessions[index]);
}
}
else {
newthing = ((pob) checkmalloc(sizeof(objtype)));
/* DAG this assignment looks unneccessary */
newthing->id = -1;
if (gamestatusp(CHEATED))
print1("Acquire which kind of item: !?][}{)/=%%\\& ");
else
print1("Acquire which kind of item: !?][}{)/=%%\\ ");
otype = mgetc();
switch (otype) {
case (POTION&0xff):
if (blessing > 0)
id = itemlist(POTIONID,NUMPOTIONS);
else
id = random_range(NUMPOTIONS);
if (id < 0) print2("You feel stupid.");
else make_potion(newthing,id);
break;
case (SCROLL&0xff):
if (blessing > 0)
id = itemlist(SCROLLID,NUMSCROLLS);
else
id = random_range(NUMSCROLLS);
if (id < 0) print2("You feel stupid.");
else make_scroll(newthing,id);
break;
case (RING&0xff):
if (blessing > 0)
id = itemlist(RINGID,NUMRINGS);
else
id = random_range(NUMRINGS);
if (id < 0) print2("You feel stupid.");
else make_ring(newthing,id);
break;
case (STICK&0xff):
if (blessing > 0)
id = itemlist(STICKID,NUMSTICKS);
else
id = random_range(NUMSTICKS);
if (id < 0) print2("You feel stupid.");
else make_stick(newthing,id);
break;
case (ARMOR&0xff):
if (blessing > 0)
id = itemlist(ARMORID,NUMARMOR);
else
id = random_range(NUMARMOR);
if (id < 0) print2("You feel stupid.");
else make_armor(newthing,id);
break;
case (SHIELD&0xff):
if (blessing > 0)
id = itemlist(SHIELDID,NUMSHIELDS);
else
id = random_range(NUMSHIELDS);
if (id < 0) print2("You feel stupid.");
else make_shield(newthing,id);
break;
case (WEAPON&0xff):
if (blessing > 0)
id = itemlist(WEAPONID,NUMWEAPONS);
else
id = random_range(NUMWEAPONS);
if (id < 0) print2("You feel stupid.");
else make_weapon(newthing,id);
break;
case (BOOTS&0xff):
if (blessing > 0)
id = itemlist(BOOTID,NUMBOOTS);
else
id = random_range(NUMBOOTS);
if (id < 0) print2("You feel stupid.");
else make_boots(newthing,id);
break;
case (CLOAK&0xff):
if (blessing > 0)
id = itemlist(CLOAKID,NUMCLOAKS);
else
id = random_range(NUMCLOAKS);
if (id < 0) print2("You feel stupid.");
else make_cloak(newthing,id);
break;
case (FOOD&0xff):
if (blessing > 0)
id = itemlist(FOODID,NUMFOODS);
else
id = random_range(NUMFOODS);
if (id < 0) print2("You feel stupid.");
else make_food(newthing,id);
break;
case (THING&0xff):
if (blessing > 0)
id = itemlist(THINGID,NUMTHINGS);
else
id = random_range(NUMTHINGS);
if (id < 0) print2("You feel stupid.");
else make_thing(newthing,id);
break;
case (ARTIFACT&0xff):
if (gamestatusp(CHEATED))
id = itemlist(ARTIFACTID,NUMARTIFACTS);
else
id = -1;
if (id < 0) print2("You feel stupid.");
else make_artifact(newthing,id);
break;
default:
print2("You feel stupid.");
}
xredraw();
if (id != ABORT) {
if (blessing > 0) {
newthing->known = 2;
Objects[id].known = 1;
}
newthing->used = FALSE;
gain_item(newthing);
}
else
{
/* DAG newthing allocated but was not freed... was YA memory leak */
/* use free() rather than free_obj() since newthing not initialized */
free( (char *) newthing );
}
}
}
// play()
// ... 실제로 게임을 실행시키고 이벤트를 처리한다.
//
ReturnCode SnakeGame::play()
{
int key;
while (FOREVER)
{
// 키보드 입력이 있는 경우를 처리한다.
if (kbhit())
{
key = getch();
if (key == 224)
{
// 방향키를 인식한 후 방향을 설정한다.
key = getch();
switch (key)
{
case UP: case DOWN: case LEFT: case RIGHT:
snake_.set_direction((Keyboard)key);
break;
default:
return RETURN_FATAL;
}
}
else if (key == ESC)
{
// 일시정지 후 메뉴를 출력한다.
switch (pause())
{
case RETURN_RESUME:
display_.clear();
display_.print_wall();
display_.print_snake(snake_);
display_.print_food(food_position_);
break;
case RETURN_NEWGAME:
return RETURN_NEWGAME;
case RETURN_STOP:
return RETURN_SUCCESS;
case RETURN_EXIT:
return RETURN_EXIT;
default:
return RETURN_UNKNOWN;
}
}
}
Sleep(GAME_SPEED);
snake_.move();
// 뱀이 벽에 부딪히면 게임이 끝난다.
if (snake_.head().X == 0 || snake_.head().X == 79 ||
snake_.head().Y == 0 || snake_.head().Y == 24)
{
return RETURN_STOP;
}
// 뱀이 자기 몸을 물었으면 게임이 끝난다.
else if (snake_.is_bitten() == true)
{
return RETURN_STOP;
}
// 뱀이 먹이를 먹었다면 뱀의 길이를 하나 증가시키고 점수를 올린다.
// 또 화면상의 먹이가 사라졌음을 표시한다.
else if (snake_.head().X == food_position_.X &&
snake_.head().Y == food_position_.Y)
{
putchar_at_xy(snake_.head().X, snake_.head().Y, 'O');
score_++;
food_position_.X = 0;
food_position_.Y = 0;
}
// 뱀이 먹이를 먹은 것이 아니라면 일반적으로 진행한다.
else
{
putchar_at_xy(snake_.head().X, snake_.head().Y, 'O');
putchar_at_xy(snake_.tail().X, snake_.tail().Y, ' ');
snake_.body().pop_back();
}
// 뱀이 먹이를 먹어 없앴다면 다시 만든다.
if (is_no_food() == true)
{
make_food();
display_.print_food(food_position_);
}
}
return RETURN_SUCCESS;
}