Files and error output

Engine.c

#include "Engine.h"
#include "Structures.h"


void handleKeys(int ch, struct Player *human) {
    clear();

    if(ch == 'j') {
        if(human->playerx > 0) {
            human->playerx--;
            mvprintw(11, 0, "Key left pressed");
        }
    }
     if(ch == 'l') {
        if(human->playerx < 100) {
            human->playerx++;
            mvprintw(11, 0, "Key right pressed");
        }
    }
    if(ch == 'i') {
        if(human->playery > 0) {
            human->playery--;
            mvprintw(11, 0,  "Key up pressed");
        }
    }
    if(ch == 'k') {
        if(human->playerx < 100){
            human->playery++;
            mvprintw(11, 0, "Key down pressed");
        }
    }   

    attron(COLOR_PAIR(9));
    mvaddch(human->playery, human->playerx, '@');
    attroff(COLOR_PAIR(9));
    refresh();

}

Engine.h

void handleKeys(int ch, struct Player *human);

Main.c

#include <curses.h>
#include "Structures.h"
#include "Engine.c"

struct Player human;

int main(int argc, char const *argv[])
{
    //Set up curses
    initscr();

    start_color();
    init_pair(0, COLOR_RED, COLOR_BLACK);
    init_pair(9, COLOR_YELLOW, COLOR_BLACK);

    cbreak();
    noecho();

    //Set up the player
    human.playerx = 5;
    human.playery = 5;

    //Draw the player
    attron(COLOR_PAIR(9));
    mvaddch(human.playery, human.playerx, '@');
    attroff(COLOR_PAIR(9));


    //As long as q is not pressed, play
    int ch = 0;
    while(ch != 'q') {
        ch = getch();
        handleKeys(ch, &human);

        refresh();
    }

    mvprintw(11, 0, "You pressed q to quit");
    mvprintw(12, 0, "Press any key to exit");

    getch();
    endwin();
    return 0;
}

Structures.h

typedef struct Player{
	int playerx;
	int playery;
} Player;

Terminal output

In file included from Main.c:3:
In file included from ./Engine.c:2:
./Structures.h:1:16: error: redefinition of 'Player'
typedef struct Player{
               ^
./Structures.h:1:16: note: previous definition is here
typedef struct Player{
               ^
In file included from Main.c:3:
In file included from ./Engine.c:2:
./Structures.h:4:3: error: typedef redefinition with different types
      ('struct Player' (aka 'Player') vs 'struct Player')
} Player;
  ^
./Structures.h:4:3: note: previous definition is here
} Player;
  ^
Main.c:20:10: error: member reference type 'struct Player *' is a pointer; maybe
      you meant to use '->'?
    human.playerx = 5;
    ~~~~~^
         ->
Main.c:21:10: error: member reference type 'struct Player *' is a pointer; maybe
      you meant to use '->'?
    human.playery = 5;
    ~~~~~^
         ->
Main.c:25:18: error: member reference type 'struct Player *' is a pointer; maybe
      you meant to use '->'?
    mvaddch(human.playery, human.playerx, '@');
            ~~~~~^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/curses.h:1082:43: note: 
      expanded from macro 'mvaddch'
#define mvaddch(y,x,ch)                 mvwaddch(stdscr,y,x,ch)
                                                        ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/curses.h:1061:42: note: 
      expanded from macro 'mvwaddch'
#define mvwaddch(win,y,x,ch)            (wmove(win,y,x) == ERR ? ERR : w...
                                                   ^
Main.c:25:33: error: member reference type 'struct Player *' is a pointer; maybe
      you meant to use '->'?
    mvaddch(human.playery, human.playerx, '@');
                           ~~~~~^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/curses.h:1082:45: note: 
      expanded from macro 'mvaddch'
#define mvaddch(y,x,ch)                 mvwaddch(stdscr,y,x,ch)
                                                          ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/curses.h:1061:44: note: 
      expanded from macro 'mvwaddch'
#define mvwaddch(win,y,x,ch)            (wmove(win,y,x) == ERR ? ERR : w...
                                                     ^
Main.c:33:24: warning: incompatible pointer types passing 'struct Player **' to
      parameter of type 'struct Player *'; remove &
      [-Wincompatible-pointer-types]
        handleKeys(ch, &human);
                       ^~~~~~
./Engine.c:5:40: note: passing argument to parameter 'human' here
void handleKeys(int ch, struct Player *human) {
                                       ^
1 warning and 6 errors generated.