firstrl1.py

import libtcodpy as libtcod
#   These variables shouldnt be changed and represent the settings
#   for the console window which will appear

SCREEN_WIDTH = 80
SCREEN_HEIGHT = 50

MAP_WIDTH = 80
MAP_HEIGHT = 45

ROOM_MAX_SIZE =  10
ROOM_MIN_SIZE = 6
MAX_ROOMS = 30

LIMIT_FPS = 20

color_dark_wall = libtcod.Color(31, 31, 31)
color_dark_ground = libtcod.Color(94, 75, 47)

class Tile:
    #a tile of the map and its properties
    def __init__(self, blocked, block_sight = None):
        self.blocked = blocked
        
        #by defult if a tile is blocked it also blocks sight
        if block_sight is None: block_sight = blocked
        self.block_sight = block_sight

class Rect:
    def __init__(self, x, y, w, h):
        self.x1 = x
        self.y1 = y
        self.x2 = x + w
        self.y2 = y + h

    def center(self):
        center_x = (self.x1 + self.x2) /2
        center_y = (self.y1 + self.y2) /2
        return (center_x, center_y)

    def intersect(self,other):
        return (self.x1 <= other.x2 and self.x2 >= other.x1 and
                self.y1 <= other.y2 and self.y2 >= other.y1)
        

class Object:
    #   this is a generic object: the player, a monster on the screen, an item,
    #   stairs, its always represented by a character on screen.
    def __init__(self, x, y, char, color):
        self.x = x
        self.y = y
        self.char = char
        self.color = color

    def move(self, dx, dy):
        # move by a given amount
        if not map[self.x + dx][self.y + dy].blocked :
            self.x += dx
            self.y += dy

    def draw(self):

#       set the color and draw the object at the position
        libtcod.console_set_default_foreground(con, self.color)
        libtcod.console_put_char(con,self.x,self.y,self.char, libtcod.BKGND_NONE)

    def clear(self):
        #erase the character for this object
        libtcod.console_put_char(con, self.x, self.y, ' ', libtcod.BKGND_NONE)

def create_room(room):
    global map
    #go through the tiles in the rectangle and make them passable
    for x in range(room.x1 + 1, room.x2):
        for y in range(room.y1 +1, room.y2):
            map[x][y].blocked = False
            map[x][y].block_sight = False
            

def create_h_tunnel(x1, x2, y):
    global map
    for x in range(min(x1, x2), max(x1, x2)+ 1):
        map[x][y].blocked = False
        map[x][y].block_sight = False
        
def create_v_tunnel(y1, y2, x):
    global map
    for y in range(min(y1, y2), max(y1, y2)+ 1):
        map[x][y].blocked = False
        map[x][y].block_sight = False
        

def make_map():
    global map

    #fill map with unblocked tiles
    map = [[ Tile(True)
        for y in range(MAP_HEIGHT)]
           for x in range(MAP_WIDTH)]

    rooms = []
    num_rooms = 0

    for r in range(MAX_ROOMS):
        #random widths and heights
        w = libtcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)
        h = libtcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)
        #random postion within the  map
        x = libtcod.random_get_int(0,0,MAP_WIDTH - w - 1)
        y = libtcod.random_get_int(0,0, MAP_HEIGHT - h - 1)

        new_room = Rect(x, y, w, h)

        failed = False
        for other_room in rooms:
            if new_room.intersect(other_room):
                failed =True
                break
        if not failed:
            #this means their is no intersections so the room  is valid

            #'paint it' to the new maps tiles
            create_room(new_room)
            #center coordinates of new room, will be useful later
            (new_x, new_y) = new_room.center()

            room_no = Object(new_x, new_y, chr(65+num_rooms), libtcod.white)
            objects.insert(0, room_no)
            
            if num_rooms == 0:
                #this is the first room where the player starts
                player.x = new_x
                player.y = new_y
            else:
                #all rooms after the first
                #conect it to the previous room with a tunnel

                #center coodinates of previous room
                (prev_x, prev_y) =rooms[num_rooms-1].center()

                if libtcod.random_get_int(0, 0, 1) == 1:
                    #first move horizontally then vertiacally
                    create_h_tunnel(prev_x, new_x, prev_y)
                    create_v_tunnel(prev_y, new_y, new_x)
                else:
                    #first move vertically then horzontally
                    create_v_tunnel(prev_y, new_y, prev_x)
                    create_h_tunnel(prev_x, new_x, new_y)

            #finally append new room to list
            rooms.append(new_room)
            num_rooms += 1
def render_all():
    global color_light_wall
    global color_light_ground
    #go through all the tiles and set their background color

    for y in range(MAP_HEIGHT):
        for x in range(MAP_WIDTH):
            wall = map[x][y].block_sight
            if wall:
                libtcod.console_set_char_background(con, x, y, color_dark_wall, libtcod.BKGND_SET)
            else:
                libtcod.console_set_char_background(con,x,y,color_dark_ground,libtcod.BKGND_SET)

    #draw all objects in the list
    for object in objects:
        object.draw()

    libtcod.console_blit(con, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0)



def handle_keys():
    #   here we set the globals for the players position plus handle movement

    #use check for keypress for realtime
    key = libtcod.console_wait_for_keypress(True)
    if key.vk == libtcod.KEY_ENTER and key.lalt:
        #alt enter for fullscreen
        libtcod.console_set_fullscreen(not libtcod.console_is_fullscreen())

    elif key.vk == libtcod.KEY_ESCAPE:
        return True #exit game

    if libtcod.console_is_key_pressed(libtcod.KEY_UP):
        player.move(0, -1)

    if libtcod.console_is_key_pressed(libtcod.KEY_DOWN):
        player.move(0, 1)

    if libtcod.console_is_key_pressed(libtcod.KEY_LEFT):
        player.move(-1, 0)

    if libtcod.console_is_key_pressed(libtcod.KEY_RIGHT):
        player.move(1, 0)


#   INT stuff here which dictates the console window.

libtcod.console_set_custom_font('arial10x10.png',libtcod.FONT_TYPE_GRAYSCALE | libtcod.FONT_LAYOUT_TCOD)
libtcod.console_init_root(SCREEN_WIDTH, SCREEN_HEIGHT, 'python/libtcod tutorial',False)
libtcod.sys_set_fps(LIMIT_FPS)
con = libtcod.console_new(SCREEN_WIDTH, SCREEN_HEIGHT)

player = Object(SCREEN_WIDTH/2,SCREEN_HEIGHT/2, '@', libtcod.white)
npc = Object(SCREEN_WIDTH/2-6,SCREEN_HEIGHT/2-4, '@', libtcod.yellow)
objects= [npc, player]

make_map()

#   THIS is the main loop for the game.

while not libtcod.console_is_window_closed():

    render_all()

    libtcod.console_flush()


    for object in objects:
        object.clear()


    exit = handle_keys()

    if exit :
        break