int snake_game::start_game()
{
std::vector<std::pair<int, int> > vSnakeBody;
std::map<int, std::map<int, bool> > mSnakeBody;
int iOffsetX = (TERMX > FULL_SCREEN_WIDTH) ? (TERMX - FULL_SCREEN_WIDTH) / 2 : 0;
int iOffsetY = (TERMY > FULL_SCREEN_HEIGHT) ? (TERMY - FULL_SCREEN_HEIGHT) / 2 : 0;
WINDOW *w_snake = newwin(FULL_SCREEN_HEIGHT, FULL_SCREEN_WIDTH, iOffsetY, iOffsetX);
print_header(w_snake);
//Snake start position
vSnakeBody.push_back(std::make_pair(FULL_SCREEN_HEIGHT / 2, FULL_SCREEN_WIDTH / 2));
mSnakeBody[FULL_SCREEN_HEIGHT / 2][FULL_SCREEN_WIDTH / 2] = true;
mvwputch(w_snake, vSnakeBody[vSnakeBody.size() - 1].first, vSnakeBody.back().second, c_white, '#');
//Snake start direction
int iDirY = 0;
int iDirX = 1;
//Snake start length
size_t iSnakeBody = 10;
//GameSpeed aka inputdelay/timeout
int iGameSpeed = 100;
//Score
int iScore = 0;
int iFruitPosY = 0;
int iFruitPosX = 0;
//Draw Score
print_score(w_snake, iScore);
long ch;
InputEvent input;
do {
//Check if we hit a border
if (vSnakeBody[vSnakeBody.size() - 1].first + iDirY == 0) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first +
iDirY + FULL_SCREEN_HEIGHT - 2,
vSnakeBody[vSnakeBody.size() - 1].second + iDirX));
} else if (vSnakeBody[vSnakeBody.size() - 1].first + iDirY == FULL_SCREEN_HEIGHT - 1) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first +
iDirY - FULL_SCREEN_HEIGHT + 2,
vSnakeBody[vSnakeBody.size() - 1].second + iDirX));
} else if (vSnakeBody[vSnakeBody.size() - 1].second + iDirX == 0) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first + iDirY,
vSnakeBody[vSnakeBody.size() - 1].second +
iDirX + FULL_SCREEN_WIDTH - 2));
} else if (vSnakeBody[vSnakeBody.size() - 1].second + iDirX == FULL_SCREEN_WIDTH - 1) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first + iDirY,
vSnakeBody[vSnakeBody.size() - 1].second +
iDirX - FULL_SCREEN_WIDTH + 2));
} else {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first + iDirY,
vSnakeBody[vSnakeBody.size() - 1].second + iDirX));
}
//Check if we hit ourself
if (mSnakeBody[vSnakeBody[vSnakeBody.size() - 1].first][vSnakeBody[vSnakeBody.size() - 1].second]) {
//We are dead :(
break;
} else {
//Add new position to map
mSnakeBody[vSnakeBody[vSnakeBody.size() - 1].first][vSnakeBody[vSnakeBody.size() - 1].second] = true;
}
//Have we eaten the forbidden fruit?
if (vSnakeBody[vSnakeBody.size() - 1].first == iFruitPosY &&
vSnakeBody[vSnakeBody.size() - 1].second == iFruitPosX) {
iScore += 500;
iSnakeBody += 10;
iGameSpeed -= 3;
print_score(w_snake, iScore);
iFruitPosY = 0;
iFruitPosX = 0;
}
//Check if we are longer than our max size
if (vSnakeBody.size() > iSnakeBody) {
mSnakeBody[vSnakeBody[0].first][vSnakeBody[0].second] = false;
mvwputch(w_snake, vSnakeBody[0].first, vSnakeBody[0].second, c_black, ' ');
vSnakeBody.erase(vSnakeBody.begin(), vSnakeBody.begin() + 1);
}
//Draw Snake
mvwputch(w_snake, vSnakeBody[vSnakeBody.size() - 1].first,
vSnakeBody[vSnakeBody.size() - 1].second, c_white, '#');
mvwputch(w_snake, vSnakeBody[vSnakeBody.size() - 2].first,
vSnakeBody[vSnakeBody.size() - 2].second, c_ltgray, '#');
//On full length add a fruit
if (iFruitPosY == 0 && iFruitPosY == 0) {
do {
iFruitPosY = rng(1, FULL_SCREEN_HEIGHT - 2);
iFruitPosX = rng(1, FULL_SCREEN_WIDTH - 2);
} while (mSnakeBody[iFruitPosY][iFruitPosX]);
mvwputch(w_snake, iFruitPosY, iFruitPosX, c_ltred, '*');
}
wrefresh(w_snake);
//Check input
timeout(iGameSpeed);
ch = getch();
input = get_input(ch);
timeout(-1);
switch (input) {
case DirectionN: /* up */
if (iDirY != 1) {
iDirY = -1;
iDirX = 0;
}
break;
case DirectionS: /* down */
if (iDirY != -1) {
iDirY = 1;
iDirX = 0;
}
break;
case DirectionW: /* left */
if (iDirX != 1) {
iDirY = 0;
iDirX = -1;
}
break;
case DirectionE: /* right */
if (iDirX != -1) {
iDirY = 0;
iDirX = 1;
}
break;
case Cancel:
return iScore;
break;
default:
break;
}
} while (true);
snake_over(w_snake, iScore);
return iScore;
}
int snake_game::start_game()
{
std::vector<std::pair<int, int> > vSnakeBody;
std::map<int, std::map<int, bool> > mSnakeBody;
int iOffsetX = (TERMX > FULL_SCREEN_WIDTH) ? (TERMX - FULL_SCREEN_WIDTH) / 2 : 0;
int iOffsetY = (TERMY > FULL_SCREEN_HEIGHT) ? (TERMY - FULL_SCREEN_HEIGHT) / 2 : 0;
WINDOW *w_snake = newwin(FULL_SCREEN_HEIGHT, FULL_SCREEN_WIDTH, iOffsetY, iOffsetX);
print_header(w_snake);
//Snake start position
vSnakeBody.push_back(std::make_pair(FULL_SCREEN_HEIGHT / 2, FULL_SCREEN_WIDTH / 2));
mSnakeBody[FULL_SCREEN_HEIGHT / 2][FULL_SCREEN_WIDTH / 2] = true;
mvwputch(w_snake, vSnakeBody[vSnakeBody.size() - 1].first, vSnakeBody.back().second, c_white, '#');
//Snake start direction
int iDirY = 0;
int iDirX = 1;
//Snake start length
size_t iSnakeBody = 10;
//GameSpeed aka inputdelay/timeout
int iGameSpeed = 100;
//Score
int iScore = 0;
int iFruitPosY = 0;
int iFruitPosX = 0;
//Draw Score
print_score(w_snake, iScore);
input_context ctxt("SNAKE");
ctxt.register_cardinal();
ctxt.register_action("CONFIRM");
ctxt.register_action("QUIT");
ctxt.register_action("HELP_KEYBINDINGS");
ctxt.register_action("ANY_INPUT");
do {
//Check if we hit a border
if (vSnakeBody[vSnakeBody.size() - 1].first + iDirY == 0) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first +
iDirY + FULL_SCREEN_HEIGHT - 2,
vSnakeBody[vSnakeBody.size() - 1].second + iDirX));
} else if (vSnakeBody[vSnakeBody.size() - 1].first + iDirY == FULL_SCREEN_HEIGHT - 1) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first +
iDirY - FULL_SCREEN_HEIGHT + 2,
vSnakeBody[vSnakeBody.size() - 1].second + iDirX));
} else if (vSnakeBody[vSnakeBody.size() - 1].second + iDirX == 0) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first + iDirY,
vSnakeBody[vSnakeBody.size() - 1].second +
iDirX + FULL_SCREEN_WIDTH - 2));
} else if (vSnakeBody[vSnakeBody.size() - 1].second + iDirX == FULL_SCREEN_WIDTH - 1) {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first + iDirY,
vSnakeBody[vSnakeBody.size() - 1].second +
iDirX - FULL_SCREEN_WIDTH + 2));
} else {
vSnakeBody.push_back(std::make_pair(vSnakeBody[vSnakeBody.size() - 1].first + iDirY,
vSnakeBody[vSnakeBody.size() - 1].second + iDirX));
}
//Check if we hit ourself
if (mSnakeBody[vSnakeBody[vSnakeBody.size() - 1].first][vSnakeBody[vSnakeBody.size() - 1].second]) {
//We are dead :(
break;
} else {
//Add new position to map
mSnakeBody[vSnakeBody[vSnakeBody.size() - 1].first][vSnakeBody[vSnakeBody.size() - 1].second] =
true;
}
//Have we eaten the forbidden fruit?
if (vSnakeBody[vSnakeBody.size() - 1].first == iFruitPosY &&
vSnakeBody[vSnakeBody.size() - 1].second == iFruitPosX) {
iScore += 500;
iSnakeBody += 10;
iGameSpeed -= 3;
print_score(w_snake, iScore);
iFruitPosY = 0;
iFruitPosX = 0;
}
//Check if we are longer than our max size
if (vSnakeBody.size() > iSnakeBody) {
mSnakeBody[vSnakeBody[0].first][vSnakeBody[0].second] = false;
mvwputch(w_snake, vSnakeBody[0].first, vSnakeBody[0].second, c_black, ' ');
vSnakeBody.erase(vSnakeBody.begin(), vSnakeBody.begin() + 1);
}
//Draw Snake
mvwputch(w_snake, vSnakeBody[vSnakeBody.size() - 1].first,
vSnakeBody[vSnakeBody.size() - 1].second, c_white, '#');
mvwputch(w_snake, vSnakeBody[vSnakeBody.size() - 2].first,
vSnakeBody[vSnakeBody.size() - 2].second, c_ltgray, '#');
//On full length add a fruit
if (iFruitPosY == 0 && iFruitPosY == 0) {
do {
iFruitPosY = rng(1, FULL_SCREEN_HEIGHT - 2);
iFruitPosX = rng(1, FULL_SCREEN_WIDTH - 2);
} while (mSnakeBody[iFruitPosY][iFruitPosX]);
mvwputch(w_snake, iFruitPosY, iFruitPosX, c_ltred, '*');
}
wrefresh(w_snake);
//Check input
timeout(iGameSpeed);
const std::string action = ctxt.handle_input();
timeout(-1);
if (action == "UP") {
if (iDirY != 1) {
iDirY = -1;
iDirX = 0;
}
} else if (action == "DOWN") {
if (iDirY != -1) {
iDirY = 1;
iDirX = 0;
}
} else if (action == "LEFT") {
if (iDirX != 1) {
iDirY = 0;
iDirX = -1;
}
} else if (action == "RIGHT") {
if (iDirX != -1) {
iDirY = 0;
iDirX = 1;
}
} else if (action == "QUIT") {
return iScore;
}
} while (true);
snake_over(w_snake, iScore);
while(ctxt.handle_input() != "QUIT") {
// try again
}
return iScore;
}
