online snake game

Job Description:

ok so I am learning to code some old school C code to make a game that is cross platform and can be played over the network

I am trying to split the game up into header files and functions and definitions into other c files

snake.c

game.c

game.h

I have come across these errors and it will not compile but the issue here is the issues are not correct.

snake.c:16:1: warning: '/*' within block comment [-Wcomment]

/*

^

snake.c:100:61: error: use of undeclared identifier 'ROWS'; did you mean 'COLS'?

if (next.x < 0 || next.x >= COLS || next.y < 0 || next.y >= ROWS) {

^~~~

COLS

/Library/Developer/CommandLineTools/SDKs/[login to view URL]:1208:32: note: 'COLS' declared here

extern NCURSES_EXPORT_VAR(int) COLS;

^

snake.c:105:21: warning: ordered comparison between pointer and integer ('int' and 'int *')

for (int i = 1; i < length; i++) {

~ ^ ~~~~~~

snake.c:155:1: error: unterminated function-like macro invocation

getmaxyx(stdscr,

^

/Library/Developer/CommandLineTools/SDKs/[login to view URL]:913:9: note: macro 'getmaxyx' defined here

#define getmaxyx(win,y,x) (y = getmaxy(win), x = getmaxx(win))

^

snake.c:215:1: error: expected '}'

^

snake.c:153:12: note: to match this '{'

int main() {

^

2 warnings and 3 errors generated.

game.c:15:1: warning: '/*' within block comment [-Wcomment]

/*

^

game.c:51:18: error: implicit declaration of function 'getNextPosition' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

Point next = getNextPosition(snake[0], direction);

^

game.c:51:11: error: initializing 'Point' with an expression of incompatible type 'int'

Point next = getNextPosition(snake[0], direction);

^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

game.c:52:9: error: implicit declaration of function 'checkCollision' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

if (checkCollision(next, rows, cols)) {

^

game.c:52:9: note: did you mean 'check_collision'?

./game.h:19:5: note: 'check_collision' declared here

int check_collision(Point next, Point *snake, int length, int rows, int cols);

^

game.c:57:11: error: implicit declaration of function 'checkCollisionWithSnake' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

if (checkCollisionWithSnake(next, snake[i])) {

^

game.c:63:9: error: implicit declaration of function 'checkFoodCollision' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

if (checkFoodCollision(next, food)) {

^

game.c:63:9: note: did you mean 'checkCollision'?

game.c:52:9: note: 'checkCollision' declared here

if (checkCollision(next, rows, cols)) {

^

game.c:65:14: error: implicit declaration of function 'generateFood' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

food = generateFood(rows, cols);

^

game.c:65:12: error: assigning to 'Point' from incompatible type 'int'

food = generateFood(rows, cols);

^ ~~~~~~~~~~~~~~~~~~~~~~~~

game.c:71:5: error: implicit declaration of function 'updateSnake' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

updateSnake(snake, next, length);

^

1 warning and 8 errors generated.

for example chatGPT reveals this issue:

It seems that you have used the incorrect name for the number of columns in the terminal window. The correct name is COLS instead of ROWS. You can resolve the error by changing the following line:

Copy code

if (next.x < 0 || next.x >= COLS || next.y < 0 || next.y >= ROWS) {

to

Copy code

if (next.x < 0 || next.x >= COLS || next.y < 0 || next.y >= ROWS) {

Færdigheder: C++ Programmering, C programmering, C# Programmering, Objective C, Software Arkitektur

Projekt ID: #35904958