C错误：被调用的对象不是函数或函数指针

Question

I'm writing a text-based adventure game to improve at coding, and I'm writing it in C since that's what I'm using at school. I keep getting the error game.c:28:15: error: called object 'room2' is not a function or function pointer. Any tips for how I can improve my code?

#include <stdio.h>

int c;
void start(), begin(), room2();

int main(){
   start();
   return 0;
}

void start(){
   printf("Welcome to the Adventure Game! Press s to start\n");
   c = getchar();
   if(c=='s'){begin();}
}

void begin(){
   printf("Text here involving describing a room and directions the player can take, if they press n they will go north\n");
   c = getchar();
   if(c=='n'){room2();}/*This is where I get the error*/
}

void room2(){
   printf("Describes room2 and the player's surroundings, etc\n");
}

Answer 1

try to move the difinition of each function to be above the line where it is called like this:

#include <stdio.h>

int c;
void start(), begin(), room2();

void room2(){
   printf("Describes room2 and the player's surroundings, etc\n");
}

void begin(){
   printf("Text here involving describing a room and directions the player can take, if they press n they will go north\n");
   c = getchar();
   if(c=='n'){room2();}/*This is where I get the error*/
}

void start(){
   printf("Welcome to the Adventure Game! Press s to start\n");
   c = getchar();
   if(c=='s'){begin();}
}

int main(){
   start();
   return 0;
}

still have a problem change c into char