main.py

import curses, random, time

stdscr = curses.initscr()
curses.noecho()
curses.cbreak()
stdscr.keypad(True)
curses.curs_set(False)
stdscr.nodelay(True)

obs = '.'
player = 'x'
food_ch = '*'
food_num = 10
score = 0
enemy_ch = 'E'
enemy_num = 3

maxl = curses.LINES - 1
maxc = curses.COLS - 1

world = []
food = []
enemy = []

# making sure player cannot go outside the screen
def in_range(a, min, max):
    if a > max:
        return max
    if a < min:
        return min
    else:
        return a

# getting two random values that doesn't overlap
def random_place():
    i = random.randint(0, maxl)
    j = random.randint(0, maxc)
    while world[i][j] != ' ':
        i = random.randint(0, maxl)
        j = random.randint(0, maxc)
    return in_range(i, 0, maxl), in_range(j, 0, maxc)

def init():
    global player_c, player_l

    for i in range(maxl + 1):
        world.append([])
        for j in range(maxc + 1):
            world[i].append(' ' if random.random() > 0.03 else obs)

    for i in range(food_num):
        foodl, foodc = random_place()
        fooda = random.randint(1000, 10000)
        food.append((foodl, foodc, fooda))
    
    for i in range(enemy_num):
        enemyl, enemyc = random_place()
        enemy.append((enemyl, enemyc))

    player_l, player_c = random_place()

def game_over():
    global playing
    stdscr.clear()
    massage = 'Game Over'
    stdscr.addstr(maxl // 2, (maxc - len(massage)) // 2, 'Game Over!')
    stdscr.refresh()
    time.sleep(3)
    playing = False
 

def draw():
    for i in range(maxl):
        for j in range(maxc):
            stdscr.addch(i, j, world[i][j]) 
    
    for f in food:
        fl, fc, fa = f
        stdscr.addch(fl, fc, food_ch)

    for e in enemy:
        el, ec = e
        stdscr.addch(el, ec, enemy_ch)
    
    stdscr.addch(player_l, player_c, player)
    stdscr.addstr(1, 1, f"Score: {score}")
    
    stdscr.refresh()

# moving function
def move(c):
    global player_l, player_c
    if c == 'w' and world[player_l - 1][player_c] != obs:
        player_l -= 1
    elif c == 's' and world[player_l + 1][player_c] != obs:
        player_l += 1
    elif c == 'a' and world[player_l][player_c - 1] != obs:
        player_c -= 1
    elif c == 'd' and world[player_l][player_c + 1] != obs:
        player_c += 1

    player_l = in_range(player_l, 0, maxl - 1)
    player_c = in_range(player_c, 0, maxc - 1)

# eating food and keeping score
def check_food():
    global score
    for i in range(len(food)):
        fl, fc, fa = food[i]
        if player_l == fl and player_c == fc:
            score += 10
            new_fl, new_fc = random_place()
            new_fa = random.randint(10000, 100000)
            food[i] = (new_fl, new_fc, new_fa)

        elif fa == 0:
            new_fl, new_fc = random_place()
            new_fa = random.randint(10000, 100000)
            food[i] = (new_fl, new_fc, new_fa)

        else:
            fa -= 1
            food[i] = (fl, fc, fa)

def enemy_attack():
    global playing
    for i, e in enumerate(enemy):
        el, ec = e
        if player_l == el and player_c == ec and not testing:
            game_over()

        elif ec < player_c and random.random() > 0.999:
            ec += 1
        elif ec > player_c and random.random() > 0.999:
            ec -= 1
        elif el < player_l and random.random() > 0.999:
            el += 1
        elif el > player_l and random.random() > 0.999:
            el -= 1

        el = in_range(el, 0, maxl)
        ec = in_range(ec, 0, maxc)
        enemy[i] = (el, ec)

init()

playing = True
testing = False 

# main loop
while playing:
    try:
        c = stdscr.getkey()
    except:
        c = ''

    if c in 'awds':
        move(c)
    elif c.lower() == 'q':
        playing = False
    
    enemy_attack()
    check_food()
    draw()

curses.endwin()