Complete Roguelike Tutorial, using python3+libtcod, part 7 code

GUI

Status Bars

import libtcodpy as tcod
import math

# Window Size
SCREEN_WIDTH = 80
SCREEN_HEIGHT = 50

# Map Size
MAP_WIDTH = 80
MAP_HEIGHT = 43

# 20 FPS Max
LIMIT_FPS = 20

# Dungeon generator parameters
ROOM_MAX_SIZE = 10
ROOM_MIN_SIZE = 6
MAX_ROOMS = 30
MAX_ROOM_MONSTERS = 2

# FOV parameters
FOV_ALGO = 0
FOV_LIGHT_WALLS = True
TORCH_RADIUS = 10

# GUI params
BAR_WIDTH = 20
PANEL_HEIGHT = 7
PANEL_Y = SCREEN_HEIGHT - PANEL_HEIGHT

# Tile colors
color_dark_wall = tcod.Color(0, 0, 100)
color_light_wall = tcod.Color(130, 110, 50)
color_dark_ground = tcod.Color(50, 50, 150)
color_light_ground = tcod.Color(200, 180, 50)

FULLSCREEN = False
TURN_BASED = True


class Tile:
    # Defines tiles on the map

    def __init__(self, blocked, block_sight=None):
        self.blocked = blocked

        # Tiles start unexplored
        self.explored = False

        # default if tile blocked, then also blocks sight
        if block_sight is None: 
            block_sight = blocked

        self.block_sight = block_sight


class Rect:
    # Define rooms on the map

    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):
        # True if this rectange intersect another rectangle
        return (self.x1 <= other.x2 and self.x2 >= other.x1 and self.y1 <= other.y2 and self.y2 >= other.y1)
               

class Object:
    # Base Class for objects, player, npc, item, stairs

    def __init__(self, x, y, char, name, color, blocks=False, fighter=None, ai=None):
        self.x = x
        self.y = y
        self.char = char
        self.name = name
        self.color = color
        self.blocks = blocks

        self.fighter = fighter
        if self.fighter:
            self.fighter.owner = self

        self.ai = ai
        if self.ai:
            self.ai.owner = self

    def move(self, dx, dy):
        # move given amount if destination not blocked
        if not is_blocked(self.x + dx, self.y + dy):
            self.x += dx
            self.y += dy

    def move_toward(self, target_x, target_y):
        # Vector and distance
        dx = target_x - self.x
        dy = target_y - self.y
        distance = math.sqrt(dx ** 2 + dy ** 2)

        # Nomalize
        dx = int(round(dx / distance))
        dy = int(round(dy / distance))
        self.move(dx, dy)

    def distance_to(self, other):
        # Distance
        dx = other.x - self.x
        dy = other.y - self.y
        return math.sqrt(dx ** 2 + dy ** 2)

    def send_to_back(self):
        # Draw first so others appear above it if on same tile.
        global objects
        objects.remove(self)
        objects.insert(0, self)

    def draw(self):
        # Set color and draw char at its position
        tcod.console_set_default_foreground(con, self.color)
        tcod.console_put_char(con, self.x, self.y, self.char, tcod.BKGND_NONE)

    def clear(self):
        # Erase char representing object
        tcod.console_put_char(con, self.x, self.y, ' ', tcod.BKGND_NONE)


class Fighter:
    # Combat related properties and methods
    def __init__(self, hp, defense, power, death_function=None):
        self.max_hp = hp
        self.hp = hp
        self.defense = defense
        self.power = power
        self.death_function = death_function

    def attack(self, target):
        # Formulate attack damage
        damage = self.power - target.fighter.defense

        if damage > 0:
            # Make target take damage
            print(self.owner.name.capitalize() + ' attacks ' + target.name + ' for ' + str(damage) + ' hit points.')
            target.fighter.take_damage(damage)
        else:
            print(self.owner.name.capitalize() + ' attacks ' + target.name + ' but it has no effect!')

    def take_damage(self, damage):
        # Apply damage
        if damage > 0:
            self.hp -= damage

            # Check for death
            if self.hp <= 0:
                function = self.death_function
                if function is not None:
                    function(self.owner)


class BasicMonster:
    # Basic AI
    def take_turn(self):

        # If you can see it, it can see you
        monster = self.owner
        if tcod.map_is_in_fov(fov_map, monster.x, monster.y):

            # Move toward player
            if monster.distance_to(player) >= 2:
                monster.move_toward(player.x, player.y)

            # Close enough to attack
            elif player.fighter.hp > 0:
                monster.fighter.attack(player)


def is_blocked(x, y):
    # Check tile
    if map[x][y].blocked:
        return True

    # Check for blocking objects
    for object in objects:
        if object.blocks and object.x == x and object.y == y:
            return True
    
    # Clear
    return False


def create_room(room):
    global map
    # Make room tiles 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
    # Make a horizontal tunnel
    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
    # Make a vertical tunnel
    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, player

    # Fill map with blocked 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 width and height
        w = tcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)
        h = tcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)

        # Random position in map
        x = tcod.random_get_int(0, 0, MAP_WIDTH - w - 1)
        y = tcod.random_get_int(0, 0, MAP_HEIGHT - h - 1)

        # Rect class = Easy rooms
        new_room = Rect(x, y, w, h)

        # Check for intersect
        failed = False
        for other_room in rooms:
            if new_room.intersect(other_room):
                failed = True
                break

        if not failed:
            # Valid room
            
            # Create it
            create_room(new_room)

            # New room's center
            (new_x, new_y) = new_room.center()

            if num_rooms == 0:
                # player starts at cent of new room
                player.x = new_x
                player.y = new_y

            else:
                # Connect to previous room

                # Previous room's center
                (prev_x, prev_y) = rooms[num_rooms - 1].center()

                # 50% chance
                if tcod.random_get_int(0, 0, 1) == 1:
                    
                    # first horizontal
                    create_h_tunnel(prev_x, new_x, prev_y)
                    create_v_tunnel(prev_y, new_y, new_x)

                else:
                    # first vertical
                    create_v_tunnel(prev_y, new_y, prev_x)
                    create_h_tunnel(prev_x, new_x, new_y)

            # add contents to room
            place_objects(new_room)

            # append room to room list
            rooms.append(new_room)
            num_rooms += 1


def place_objects(room):
    # Get random number of monsters
    num_monsters = tcod.random_get_int(0, 0, MAX_ROOM_MONSTERS)

    for i in range(num_monsters):
        # Get random spot for monster
        x = tcod.random_get_int(0, room.x1, room.x2)
        y = tcod.random_get_int(0, room.y1, room.y2)

        if not is_blocked(x,y):
            if tcod.random_get_int(0, 0, 100) < 80:
                # Create an Orc
                fighter_component = Fighter(hp=10, defense=0, power=3, death_function=monster_death)
                ai_component = BasicMonster()
                monster = Object(x, y, 'o', 'orc', tcod.desaturated_green, 
                                 blocks=True, fighter=fighter_component, ai=ai_component)

            else:
                # Create a Troll
                fighter_component = Fighter(hp=16, defense=1, power=4, death_function=monster_death)
                ai_component = BasicMonster()
                monster = Object(x, y, 'T', 'troll', tcod.dark_green, 
                                 blocks=True, fighter=fighter_component, ai=ai_component)
        
            objects.append(monster)


def render_all():
    global fov_map, fov_recompute
    global color_dark_wall, color_light_wall
    global color_dark_ground, color_light_ground

    if fov_recompute:
        # Recompute fov when asked
        fov_recompute = False
        tcod.map_compute_fov(fov_map, player.x, player.y, TORCH_RADIUS, FOV_LIGHT_WALLS, FOV_ALGO)

    # Set background color for all tiles
    for y in range(MAP_HEIGHT):
        for x in range(MAP_WIDTH):
            visible = tcod.map_is_in_fov(fov_map, x, y)
            wall = map[x][y].block_sight
            if not visible:
                # Player can only see explored tiles
                if map[x][y].explored:
                    if wall:
                        tcod.console_set_char_background(con, x, y, color_dark_wall, tcod.BKGND_SET)
                    else:
                        tcod.console_set_char_background(con, x, y, color_dark_ground, tcod.BKGND_SET)
            else:
                # It is visible
                if wall:
                    tcod.console_set_char_background(con, x, y, color_light_wall, tcod.BKGND_SET)
                else:
                    tcod.console_set_char_background(con, x, y, color_light_ground, tcod.BKGND_SET)

                # Visible tiles are explored
                map[x][y].explored = True

    # Draw all objects in list
    for object in objects:
        if object != player:
            object.draw()
        player.draw()

    # Blit con to root console
    tcod.console_blit(con, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0)

    # GUI section
    tcod.console_set_default_background(panel, tcod.black)
    tcod.console_clear(panel)

    # Player stats
    render_bar(1, 1, BAR_WIDTH, 'HP', player.fighter.hp, player.fighter.max_hp, tcod.light_red, tcod.darker_red)
        
    # Blit con to root console
    tcod.console_blit(panel, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, PANEL_Y)

    
def player_move_or_attack(dx, dy):
    global fov_recompute

    # Where the player is going
    x = player.x + dx
    y = player.y + dy

    # Look for attackable Object
    target = None
    for object in objects:
        if object.fighter and object.x == x and object.y == y:
            target = object
            break

    #attack if target is found
    if target is not None:
        player.fighter.attack(target)
    else:
        player.move(dx, dy)
        fov_recompute = True
        

def get_key_event(turn_based=None):
    if turn_based:
        key = tcod.console_wait_for_keypress(True)
    else:
        key = tcod.console_check_for_keypress()
    return key


def handle_keys():
    global fov_recompute
    
    key = get_key_event(TURN_BASED)

    if key.vk == tcod.KEY_ENTER and key.lalt:
        # Alt + Enter toggles fullscreen
        tcod.console_set_fullscreen(not tcod.console_is_fullscreen())

    elif key.vk == tcod.KEY_ESCAPE:
        # Escape exis game
        return 'exit'

    if game_state == 'playing':
        # movement
        if tcod.console_is_key_pressed(tcod.KEY_UP):
            player_move_or_attack(0,-1)
            fov_recompute = True

        elif tcod.console_is_key_pressed(tcod.KEY_DOWN):
            player_move_or_attack(0,1)
            fov_recompute = True

        elif tcod.console_is_key_pressed(tcod.KEY_LEFT):
            player_move_or_attack(-1,0)
            fov_recompute = True

        elif tcod.console_is_key_pressed(tcod.KEY_RIGHT):
            player_move_or_attack(1,0)
            fov_recompute = True
        else:
            return 'didnt-take-turn'


def player_death(player):
    # Game over
    global game_state
    print('You died!')
    game_state = 'dead'


def monster_death(monster):
    # Turn to corpse
    print(monster.name.capitalize() + ' is dead!')
    monster.char = '%'
    monster.color = tcod.dark_red
    monster.blocks = False
    monster.fighter = None
    monster.ai = None
    monster.name = 'remains of ' + monster.name
    monster.send_to_back()


def render_bar(x, y, total_width, name, value, maximum, bar_color, back_color):
    bar_width = int(float(value) / maximum * total_width)

    # Render background
    tcod.console_set_default_background(panel, back_color)
    tcod.console_rect(panel, x, y, total_width, 1, False, tcod.BKGND_SCREEN)

    # Render bar
    tcod.console_set_default_background(panel, bar_color)
    if bar_width > 0:
        tcod.console_rect(panel, x, y, bar_width, 1, False, tcod.BKGND_SCREEN)

    # Render center text with values
    tcod.console_set_default_foreground(panel, tcod.white)
    stats = name + ': ' + str(value) + '/' + str(maximum)
    tcod.console_print_ex(panel, int(x + total_width / 2), y, tcod.BKGND_NONE, tcod.CENTER, stats)

# Initialization & Main Loop

# Font
font_path = 'arial10x10.png'
font_flags = tcod.FONT_TYPE_GREYSCALE | tcod.FONT_LAYOUT_TCOD
tcod.console_set_custom_font(font_path, font_flags)

# Screen
window_title = 'Python 3 libtcod tutorial'
tcod.console_init_root(SCREEN_WIDTH, SCREEN_HEIGHT, window_title, FULLSCREEN)

# Fps
tcod.sys_set_fps(LIMIT_FPS)

# New Console
con = tcod.console_new(SCREEN_WIDTH,SCREEN_HEIGHT)

# Player
fighter_component = Fighter(hp=30, defense=2, power=5, death_function=player_death)
player = Object(0, 0, '@', 'player', tcod.white, blocks=True, fighter=fighter_component)


# List of objects
objects = [player]

make_map()

# Fov map
fov_map = tcod.map_new(MAP_WIDTH, MAP_HEIGHT)
for y in range(MAP_HEIGHT):
    for x in range(MAP_WIDTH):
        tcod.map_set_properties(fov_map, x, y, not map[x][y].block_sight, not map[x][y].blocked)

fov_recompute = True
game_state = 'playing'
player_action = None

# Status bars
panel = tcod.console_new(SCREEN_WIDTH, PANEL_HEIGHT)

# Loop
while not tcod.console_is_window_closed():

    render_all()

    tcod.console_flush()
    
    # Erase old locations
    for object in objects:
        object.clear()

    # Handle keys and exit id needed
    player_action = handle_keys()

    # Exit if needed
    if player_action == 'exit':
        break


    # Let monsters take turn
    if game_state == 'playing' and player_action != 'didnt-take-turn':
        for object in objects:
            if object.ai:
                object.ai.take_turn()

The message box

import libtcodpy as tcod
import math
import textwrap

# Window Size
SCREEN_WIDTH = 80
SCREEN_HEIGHT = 50

# Map Size
MAP_WIDTH = 80
MAP_HEIGHT = 43

# 20 FPS Max
LIMIT_FPS = 20

# Dungeon generator parameters
ROOM_MAX_SIZE = 10
ROOM_MIN_SIZE = 6
MAX_ROOMS = 30
MAX_ROOM_MONSTERS = 2

# FOV parameters
FOV_ALGO = 0
FOV_LIGHT_WALLS = True
TORCH_RADIUS = 10

# GUI params
BAR_WIDTH = 20
PANEL_HEIGHT = 7
PANEL_Y = SCREEN_HEIGHT - PANEL_HEIGHT

# Message bar params
MSG_X = BAR_WIDTH + 2
MSG_WIDTH = SCREEN_WIDTH - BAR_WIDTH - 2
MSG_HEIGHT = PANEL_HEIGHT - 1

# Tile colors
color_dark_wall = tcod.Color(0, 0, 100)
color_light_wall = tcod.Color(130, 110, 50)
color_dark_ground = tcod.Color(50, 50, 150)
color_light_ground = tcod.Color(200, 180, 50)

FULLSCREEN = False
TURN_BASED = True


class Tile:
    # Defines tiles on the map

    def __init__(self, blocked, block_sight=None):
        self.blocked = blocked

        # Tiles start unexplored
        self.explored = False

        # default if tile blocked, then also blocks sight
        if block_sight is None: 
            block_sight = blocked

        self.block_sight = block_sight


class Rect:
    # Define rooms on the map

    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):
        # True if this rectange intersect another rectangle
        return (self.x1 <= other.x2 and self.x2 >= other.x1 and self.y1 <= other.y2 and self.y2 >= other.y1)
               

class Object:
    # Base Class for objects, player, npc, item, stairs

    def __init__(self, x, y, char, name, color, blocks=False, fighter=None, ai=None):
        self.x = x
        self.y = y
        self.char = char
        self.name = name
        self.color = color
        self.blocks = blocks

        self.fighter = fighter
        if self.fighter:
            self.fighter.owner = self

        self.ai = ai
        if self.ai:
            self.ai.owner = self

    def move(self, dx, dy):
        # move given amount if destination not blocked
        if not is_blocked(self.x + dx, self.y + dy):
            self.x += dx
            self.y += dy

    def move_toward(self, target_x, target_y):
        # Vector and distance
        dx = target_x - self.x
        dy = target_y - self.y
        distance = math.sqrt(dx ** 2 + dy ** 2)

        # Nomalize
        dx = int(round(dx / distance))
        dy = int(round(dy / distance))
        self.move(dx, dy)

    def distance_to(self, other):
        # Distance
        dx = other.x - self.x
        dy = other.y - self.y
        return math.sqrt(dx ** 2 + dy ** 2)

    def send_to_back(self):
        # Draw first so others appear above it if on same tile.
        global objects
        objects.remove(self)
        objects.insert(0, self)

    def draw(self):
        # Set color and draw char at its position
        tcod.console_set_default_foreground(con, self.color)
        tcod.console_put_char(con, self.x, self.y, self.char, tcod.BKGND_NONE)

    def clear(self):
        # Erase char representing object
        tcod.console_put_char(con, self.x, self.y, ' ', tcod.BKGND_NONE)


class Fighter:
    # Combat related properties and methods
    def __init__(self, hp, defense, power, death_function=None):
        self.max_hp = hp
        self.hp = hp
        self.defense = defense
        self.power = power
        self.death_function = death_function

    def attack(self, target):
        # Formulate attack damage
        damage = self.power - target.fighter.defense

        if damage > 0:
            # Make target take damage
            message(self.owner.name.capitalize() + ' attacks ' + target.name + ' for ' + str(damage) + ' hit points.')
            target.fighter.take_damage(damage)
        else:
            message(self.owner.name.capitalize() + ' attacks ' + target.name + ' but it has no effect!')

    def take_damage(self, damage):
        # Apply damage
        if damage > 0:
            self.hp -= damage

            # Check for death
            if self.hp <= 0:
                function = self.death_function
                if function is not None:
                    function(self.owner)


class BasicMonster:
    # Basic AI
    def take_turn(self):

        # If you can see it, it can see you
        monster = self.owner
        if tcod.map_is_in_fov(fov_map, monster.x, monster.y):

            # Move toward player
            if monster.distance_to(player) >= 2:
                monster.move_toward(player.x, player.y)

            # Close enough to attack
            elif player.fighter.hp > 0:
                monster.fighter.attack(player)


def is_blocked(x, y):
    # Check tile
    if map[x][y].blocked:
        return True

    # Check for blocking objects
    for object in objects:
        if object.blocks and object.x == x and object.y == y:
            return True
    
    # Clear
    return False


def create_room(room):
    global map
    # Make room tiles 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
    # Make a horizontal tunnel
    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
    # Make a vertical tunnel
    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, player

    # Fill map with blocked 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 width and height
        w = tcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)
        h = tcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)

        # Random position in map
        x = tcod.random_get_int(0, 0, MAP_WIDTH - w - 1)
        y = tcod.random_get_int(0, 0, MAP_HEIGHT - h - 1)

        # Rect class = Easy rooms
        new_room = Rect(x, y, w, h)

        # Check for intersect
        failed = False
        for other_room in rooms:
            if new_room.intersect(other_room):
                failed = True
                break

        if not failed:
            # Valid room
            
            # Create it
            create_room(new_room)

            # New room's center
            (new_x, new_y) = new_room.center()

            if num_rooms == 0:
                # player starts at cent of new room
                player.x = new_x
                player.y = new_y

            else:
                # Connect to previous room

                # Previous room's center
                (prev_x, prev_y) = rooms[num_rooms - 1].center()

                # 50% chance
                if tcod.random_get_int(0, 0, 1) == 1:
                    
                    # first horizontal
                    create_h_tunnel(prev_x, new_x, prev_y)
                    create_v_tunnel(prev_y, new_y, new_x)

                else:
                    # first vertical
                    create_v_tunnel(prev_y, new_y, prev_x)
                    create_h_tunnel(prev_x, new_x, new_y)

            # add contents to room
            place_objects(new_room)

            # append room to room list
            rooms.append(new_room)
            num_rooms += 1


def place_objects(room):
    # Get random number of monsters
    num_monsters = tcod.random_get_int(0, 0, MAX_ROOM_MONSTERS)

    for i in range(num_monsters):
        # Get random spot for monster
        x = tcod.random_get_int(0, room.x1, room.x2)
        y = tcod.random_get_int(0, room.y1, room.y2)

        if not is_blocked(x,y):
            if tcod.random_get_int(0, 0, 100) < 80:
                # Create an Orc
                fighter_component = Fighter(hp=10, defense=0, power=3, death_function=monster_death)
                ai_component = BasicMonster()
                monster = Object(x, y, 'o', 'orc', tcod.desaturated_green, 
                                 blocks=True, fighter=fighter_component, ai=ai_component)

            else:
                # Create a Troll
                fighter_component = Fighter(hp=16, defense=1, power=4, death_function=monster_death)
                ai_component = BasicMonster()
                monster = Object(x, y, 'T', 'troll', tcod.dark_green, 
                                 blocks=True, fighter=fighter_component, ai=ai_component)
        
            objects.append(monster)


def render_all():
    global fov_map, fov_recompute
    global color_dark_wall, color_light_wall
    global color_dark_ground, color_light_ground

    if fov_recompute:
        # Recompute fov when asked
        fov_recompute = False
        tcod.map_compute_fov(fov_map, player.x, player.y, TORCH_RADIUS, FOV_LIGHT_WALLS, FOV_ALGO)

    # Set background color for all tiles
    for y in range(MAP_HEIGHT):
        for x in range(MAP_WIDTH):
            visible = tcod.map_is_in_fov(fov_map, x, y)
            wall = map[x][y].block_sight
            if not visible:
                # Player can only see explored tiles
                if map[x][y].explored:
                    if wall:
                        tcod.console_set_char_background(con, x, y, color_dark_wall, tcod.BKGND_SET)
                    else:
                        tcod.console_set_char_background(con, x, y, color_dark_ground, tcod.BKGND_SET)
            else:
                # It is visible
                if wall:
                    tcod.console_set_char_background(con, x, y, color_light_wall, tcod.BKGND_SET)
                else:
                    tcod.console_set_char_background(con, x, y, color_light_ground, tcod.BKGND_SET)

                # Visible tiles are explored
                map[x][y].explored = True

    # Draw all objects in list
    for object in objects:
        if object != player:
            object.draw()
        player.draw()

    # Blit con to root console
    tcod.console_blit(con, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0)

    # GUI section
    tcod.console_set_default_background(panel, tcod.black)
    tcod.console_clear(panel)
        
    # Game messages
    y = 1
    for (line, color) in game_msgs:
        tcod.console_set_default_foreground(panel, color)
        tcod.console_print_ex(panel, MSG_X, y, tcod.BKGND_NONE, tcod.LEFT, line)
        y += 1

    # Player stats
    render_bar(1, 1, BAR_WIDTH, 'HP', player.fighter.hp, player.fighter.max_hp, tcod.light_red, tcod.darker_red)
    
    # Blit con to root console
    tcod.console_blit(panel, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, PANEL_Y)

    
def player_move_or_attack(dx, dy):
    global fov_recompute

    # Where the player is going
    x = player.x + dx
    y = player.y + dy

    # Look for attackable Object
    target = None
    for object in objects:
        if object.fighter and object.x == x and object.y == y:
            target = object
            break

    #attack if target is found
    if target is not None:
        player.fighter.attack(target)
    else:
        player.move(dx, dy)
        fov_recompute = True
        

def get_key_event(turn_based=None):
    if turn_based:
        key = tcod.console_wait_for_keypress(True)
    else:
        key = tcod.console_check_for_keypress()
    return key


def handle_keys():
    global fov_recompute
    
    key = get_key_event(TURN_BASED)

    if key.vk == tcod.KEY_ENTER and key.lalt:
        # Alt + Enter toggles fullscreen
        tcod.console_set_fullscreen(not tcod.console_is_fullscreen())

    elif key.vk == tcod.KEY_ESCAPE:
        # Escape exis game
        return 'exit'

    if game_state == 'playing':
        # movement
        if tcod.console_is_key_pressed(tcod.KEY_UP):
            player_move_or_attack(0,-1)
            fov_recompute = True

        elif tcod.console_is_key_pressed(tcod.KEY_DOWN):
            player_move_or_attack(0,1)
            fov_recompute = True

        elif tcod.console_is_key_pressed(tcod.KEY_LEFT):
            player_move_or_attack(-1,0)
            fov_recompute = True

        elif tcod.console_is_key_pressed(tcod.KEY_RIGHT):
            player_move_or_attack(1,0)
            fov_recompute = True
        else:
            return 'didnt-take-turn'


def player_death(player):
    # Game over
    global game_state
    message('You died!',tcod.red)
    game_state = 'dead'


def monster_death(monster):
    # Turn to corpse
    message(monster.name.capitalize() + ' is dead!', tcod.orange)
    monster.char = '%'
    monster.color = tcod.dark_red
    monster.blocks = False
    monster.fighter = None
    monster.ai = None
    monster.name = 'remains of ' + monster.name
    monster.send_to_back()


def render_bar(x, y, total_width, name, value, maximum, bar_color, back_color):
    bar_width = int(float(value) / maximum * total_width)

    # Render background
    tcod.console_set_default_background(panel, back_color)
    tcod.console_rect(panel, x, y, total_width, 1, False, tcod.BKGND_SCREEN)

    # Render bar
    tcod.console_set_default_background(panel, bar_color)
    if bar_width > 0:
        tcod.console_rect(panel, x, y, bar_width, 1, False, tcod.BKGND_SCREEN)

    # Render center text with values
    tcod.console_set_default_foreground(panel, tcod.white)
    stats = name + ': ' + str(value) + '/' + str(maximum)
    tcod.console_print_ex(panel, int(x + total_width / 2), y, tcod.BKGND_NONE, tcod.CENTER, stats)


def message(new_msg, color = tcod.white):
    # If long, split message
    new_msg_lines = textwrap.wrap(new_msg, MSG_WIDTH)

    for line in new_msg_lines:
        # If buffer full, remove old to make room for new
        if len(game_msgs) == MSG_HEIGHT:
            del game_msgs[0]

        # Add line as tuple with text and color
        game_msgs.append((line,color))


# Initialization & Main Loop

# Font
font_path = 'arial10x10.png'
font_flags = tcod.FONT_TYPE_GREYSCALE | tcod.FONT_LAYOUT_TCOD
tcod.console_set_custom_font(font_path, font_flags)

# Screen
window_title = 'Python 3 libtcod tutorial'
tcod.console_init_root(SCREEN_WIDTH, SCREEN_HEIGHT, window_title, FULLSCREEN)

# Fps
tcod.sys_set_fps(LIMIT_FPS)

# New Console
con = tcod.console_new(SCREEN_WIDTH,SCREEN_HEIGHT)

# Player
fighter_component = Fighter(hp=30, defense=2, power=5, death_function=player_death)
player = Object(0, 0, '@', 'player', tcod.white, blocks=True, fighter=fighter_component)


# List of objects
objects = [player]

make_map()

# Fov map
fov_map = tcod.map_new(MAP_WIDTH, MAP_HEIGHT)
for y in range(MAP_HEIGHT):
    for x in range(MAP_WIDTH):
        tcod.map_set_properties(fov_map, x, y, not map[x][y].block_sight, not map[x][y].blocked)

fov_recompute = True
game_state = 'playing'
player_action = None

# Status bars
panel = tcod.console_new(SCREEN_WIDTH, PANEL_HEIGHT)

# List of game messaes and colors
game_msgs = []

# Welcome message
message('Welcome stranger! Prepare to perish in the Tombs of Ancient Kings!', tcod.red)

# Loop
while not tcod.console_is_window_closed():

    render_all()

    tcod.console_flush()
    
    # Erase old locations
    for object in objects:
        object.clear()

    # Handle keys and exit id needed
    player_action = handle_keys()

    # Exit if needed
    if player_action == 'exit':
        break


    # Let monsters take turn
    if game_state == 'playing' and player_action != 'didnt-take-turn':
        for object in objects:
            if object.ai:
                object.ai.take_turn()

Mouse Look

import libtcodpy as tcod
import math
import textwrap

# Window Size
SCREEN_WIDTH = 80
SCREEN_HEIGHT = 50

# Map Size
MAP_WIDTH = 80
MAP_HEIGHT = 43

# 20 FPS Max
LIMIT_FPS = 20

# Dungeon generator parameters
ROOM_MAX_SIZE = 10
ROOM_MIN_SIZE = 6
MAX_ROOMS = 30
MAX_ROOM_MONSTERS = 2

# FOV parameters
FOV_ALGO = 0
FOV_LIGHT_WALLS = True
TORCH_RADIUS = 10

# GUI params
BAR_WIDTH = 20
PANEL_HEIGHT = 7
PANEL_Y = SCREEN_HEIGHT - PANEL_HEIGHT

# Message bar params
MSG_X = BAR_WIDTH + 2
MSG_WIDTH = SCREEN_WIDTH - BAR_WIDTH - 2
MSG_HEIGHT = PANEL_HEIGHT - 1

# Tile colors
color_dark_wall = tcod.Color(0, 0, 100)
color_light_wall = tcod.Color(130, 110, 50)
color_dark_ground = tcod.Color(50, 50, 150)
color_light_ground = tcod.Color(200, 180, 50)

FULLSCREEN = False
TURN_BASED = True


class Tile:
    # Defines tiles on the map

    def __init__(self, blocked, block_sight=None):
        self.blocked = blocked

        # Tiles start unexplored
        self.explored = False

        # default if tile blocked, then also blocks sight
        if block_sight is None: 
            block_sight = blocked

        self.block_sight = block_sight


class Rect:
    # Define rooms on the map

    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):
        # True if this rectange intersect another rectangle
        return (self.x1 <= other.x2 and self.x2 >= other.x1 and self.y1 <= other.y2 and self.y2 >= other.y1)
               

class Object:
    # Base Class for objects, player, npc, item, stairs

    def __init__(self, x, y, char, name, color, blocks=False, fighter=None, ai=None):
        self.x = x
        self.y = y
        self.char = char
        self.name = name
        self.color = color
        self.blocks = blocks

        self.fighter = fighter
        if self.fighter:
            self.fighter.owner = self

        self.ai = ai
        if self.ai:
            self.ai.owner = self

    def move(self, dx, dy):
        # move given amount if destination not blocked
        if not is_blocked(self.x + dx, self.y + dy):
            self.x += dx
            self.y += dy

    def move_toward(self, target_x, target_y):
        # Vector and distance
        dx = target_x - self.x
        dy = target_y - self.y
        distance = math.sqrt(dx ** 2 + dy ** 2)

        # Nomalize
        dx = int(round(dx / distance))
        dy = int(round(dy / distance))
        self.move(dx, dy)

    def distance_to(self, other):
        # Distance
        dx = other.x - self.x
        dy = other.y - self.y
        return math.sqrt(dx ** 2 + dy ** 2)

    def send_to_back(self):
        # Draw first so others appear above it if on same tile.
        global objects
        objects.remove(self)
        objects.insert(0, self)

    def draw(self):
        # Set color and draw char at its position
        tcod.console_set_default_foreground(con, self.color)
        tcod.console_put_char(con, self.x, self.y, self.char, tcod.BKGND_NONE)

    def clear(self):
        # Erase char representing object
        tcod.console_put_char(con, self.x, self.y, ' ', tcod.BKGND_NONE)


class Fighter:
    # Combat related properties and methods
    def __init__(self, hp, defense, power, death_function=None):
        self.max_hp = hp
        self.hp = hp
        self.defense = defense
        self.power = power
        self.death_function = death_function

    def attack(self, target):
        # Formulate attack damage
        damage = self.power - target.fighter.defense

        if damage > 0:
            # Make target take damage
            message(self.owner.name.capitalize() + ' attacks ' + target.name + ' for ' + str(damage) + ' hit points.')
            target.fighter.take_damage(damage)
        else:
            message(self.owner.name.capitalize() + ' attacks ' + target.name + ' but it has no effect!')

    def take_damage(self, damage):
        # Apply damage
        if damage > 0:
            self.hp -= damage

            # Check for death
            if self.hp <= 0:
                function = self.death_function
                if function is not None:
                    function(self.owner)


class BasicMonster:
    # Basic AI
    def take_turn(self):

        # If you can see it, it can see you
        monster = self.owner
        if tcod.map_is_in_fov(fov_map, monster.x, monster.y):

            # Move toward player
            if monster.distance_to(player) >= 2:
                monster.move_toward(player.x, player.y)

            # Close enough to attack
            elif player.fighter.hp > 0:
                monster.fighter.attack(player)


def is_blocked(x, y):
    # Check tile
    if map[x][y].blocked:
        return True

    # Check for blocking objects
    for object in objects:
        if object.blocks and object.x == x and object.y == y:
            return True
    
    # Clear
    return False


def create_room(room):
    global map
    # Make room tiles 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
    # Make a horizontal tunnel
    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
    # Make a vertical tunnel
    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, player

    # Fill map with blocked 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 width and height
        w = tcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)
        h = tcod.random_get_int(0, ROOM_MIN_SIZE, ROOM_MAX_SIZE)

        # Random position in map
        x = tcod.random_get_int(0, 0, MAP_WIDTH - w - 1)
        y = tcod.random_get_int(0, 0, MAP_HEIGHT - h - 1)

        # Rect class = Easy rooms
        new_room = Rect(x, y, w, h)

        # Check for intersect
        failed = False
        for other_room in rooms:
            if new_room.intersect(other_room):
                failed = True
                break

        if not failed:
            # Valid room
            
            # Create it
            create_room(new_room)

            # New room's center
            (new_x, new_y) = new_room.center()

            if num_rooms == 0:
                # player starts at cent of new room
                player.x = new_x
                player.y = new_y

            else:
                # Connect to previous room

                # Previous room's center
                (prev_x, prev_y) = rooms[num_rooms - 1].center()

                # 50% chance
                if tcod.random_get_int(0, 0, 1) == 1:
                    
                    # first horizontal
                    create_h_tunnel(prev_x, new_x, prev_y)
                    create_v_tunnel(prev_y, new_y, new_x)

                else:
                    # first vertical
                    create_v_tunnel(prev_y, new_y, prev_x)
                    create_h_tunnel(prev_x, new_x, new_y)

            # add contents to room
            place_objects(new_room)

            # append room to room list
            rooms.append(new_room)
            num_rooms += 1


def place_objects(room):
    # Get random number of monsters
    num_monsters = tcod.random_get_int(0, 0, MAX_ROOM_MONSTERS)

    for i in range(num_monsters):
        # Get random spot for monster
        x = tcod.random_get_int(0, room.x1, room.x2)
        y = tcod.random_get_int(0, room.y1, room.y2)

        if not is_blocked(x,y):
            if tcod.random_get_int(0, 0, 100) < 80:
                # Create an Orc
                fighter_component = Fighter(hp=10, defense=0, power=3, death_function=monster_death)
                ai_component = BasicMonster()
                monster = Object(x, y, 'o', 'orc', tcod.desaturated_green, 
                                 blocks=True, fighter=fighter_component, ai=ai_component)

            else:
                # Create a Troll
                fighter_component = Fighter(hp=16, defense=1, power=4, death_function=monster_death)
                ai_component = BasicMonster()
                monster = Object(x, y, 'T', 'troll', tcod.dark_green, 
                                 blocks=True, fighter=fighter_component, ai=ai_component)
        
            objects.append(monster)


def render_all():
    global fov_map, fov_recompute
    global color_dark_wall, color_light_wall
    global color_dark_ground, color_light_ground

    if fov_recompute:
        # Recompute fov when asked
        fov_recompute = False
        tcod.map_compute_fov(fov_map, player.x, player.y, TORCH_RADIUS, FOV_LIGHT_WALLS, FOV_ALGO)

    # Set background color for all tiles
    for y in range(MAP_HEIGHT):
        for x in range(MAP_WIDTH):
            visible = tcod.map_is_in_fov(fov_map, x, y)
            wall = map[x][y].block_sight
            if not visible:
                # Player can only see explored tiles
                if map[x][y].explored:
                    if wall:
                        tcod.console_set_char_background(con, x, y, color_dark_wall, tcod.BKGND_SET)
                    else:
                        tcod.console_set_char_background(con, x, y, color_dark_ground, tcod.BKGND_SET)
            else:
                # It is visible
                if wall:
                    tcod.console_set_char_background(con, x, y, color_light_wall, tcod.BKGND_SET)
                else:
                    tcod.console_set_char_background(con, x, y, color_light_ground, tcod.BKGND_SET)

                # Visible tiles are explored
                map[x][y].explored = True

    # Draw all objects in list
    for object in objects:
        if object != player:
            object.draw()
        player.draw()

    # Blit con to root console
    tcod.console_blit(con, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, 0)

    # GUI section
    tcod.console_set_default_background(panel, tcod.black)
    tcod.console_clear(panel)

    # Names of objects under mouse
    tcod.console_set_default_foreground(panel, tcod.light_gray)
    tcod.console_print_ex(panel, 1, 0, tcod.BKGND_NONE, tcod.LEFT, get_names_under_mouse())
        
    # Game messages
    y = 1
    for (line, color) in game_msgs:
        tcod.console_set_default_foreground(panel, color)
        tcod.console_print_ex(panel, MSG_X, y, tcod.BKGND_NONE, tcod.LEFT, line)
        y += 1

    # Player stats
    render_bar(1, 1, BAR_WIDTH, 'HP', player.fighter.hp, player.fighter.max_hp, tcod.light_red, tcod.darker_red)
    
    # Blit con to root console
    tcod.console_blit(panel, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, PANEL_Y)

    
def player_move_or_attack(dx, dy):
    global fov_recompute

    # Where the player is going
    x = player.x + dx
    y = player.y + dy

    # Look for attackable Object
    target = None
    for object in objects:
        if object.fighter and object.x == x and object.y == y:
            target = object
            break

    #attack if target is found
    if target is not None:
        player.fighter.attack(target)
    else:
        player.move(dx, dy)
        fov_recompute = True
        

def get_key_event(turn_based=None):
    if turn_based:
        key = tcod.console_wait_for_keypress(True)
    else:
        key = tcod.console_check_for_keypress()
    return key


def handle_keys():
    global fov_recompute
    global key
    
    #key = get_key_event(TURN_BASED)

    if key.vk == tcod.KEY_ENTER and key.lalt:
        # Alt + Enter toggles fullscreen
        tcod.console_set_fullscreen(not tcod.console_is_fullscreen())

    elif key.vk == tcod.KEY_ESCAPE:
        # Escape exis game
        return 'exit'

    if game_state == 'playing':
        # movement
        if key.vk == tcod.KEY_UP:
            player_move_or_attack(0,-1)
            fov_recompute = True

        elif key.vk == tcod.KEY_DOWN:
            player_move_or_attack(0,1)
            fov_recompute = True

        elif key.vk == tcod.KEY_LEFT:
            player_move_or_attack(-1,0)
            fov_recompute = True

        elif key.vk == tcod.KEY_RIGHT:
            player_move_or_attack(1,0)
            fov_recompute = True
        
        else:
            return 'didnt-take-turn'

def get_names_under_mouse():
    global mouse

    #Return string with names of objects nuder moused tile
    (x, y) = (mouse.cx, mouse.cy)

    # Create list of names of objects at moused tile and in FOV
    names = [obj.name for obj in objects
             if obj.x == x and obj.y == y and tcod.map_is_in_fov(fov_map, obj.x, obj.y)]

    names = ', '.join(names)
    return names.capitalize()

def player_death(player):
    # Game over
    global game_state
    message('You died!',tcod.red)
    game_state = 'dead'


def monster_death(monster):
    # Turn to corpse
    message(monster.name.capitalize() + ' is dead!', tcod.orange)
    monster.char = '%'
    monster.color = tcod.dark_red
    monster.blocks = False
    monster.fighter = None
    monster.ai = None
    monster.name = 'remains of ' + monster.name
    monster.send_to_back()


def render_bar(x, y, total_width, name, value, maximum, bar_color, back_color):
    bar_width = int(float(value) / maximum * total_width)

    # Render background
    tcod.console_set_default_background(panel, back_color)
    tcod.console_rect(panel, x, y, total_width, 1, False, tcod.BKGND_SCREEN)

    # Render bar
    tcod.console_set_default_background(panel, bar_color)
    if bar_width > 0:
        tcod.console_rect(panel, x, y, bar_width, 1, False, tcod.BKGND_SCREEN)

    # Render center text with values
    tcod.console_set_default_foreground(panel, tcod.white)
    stats = name + ': ' + str(value) + '/' + str(maximum)
    tcod.console_print_ex(panel, int(x + total_width / 2), y, tcod.BKGND_NONE, tcod.CENTER, stats)


def message(new_msg, color = tcod.white):
    # If long, split message
    new_msg_lines = textwrap.wrap(new_msg, MSG_WIDTH)

    for line in new_msg_lines:
        # If buffer full, remove old to make room for new
        if len(game_msgs) == MSG_HEIGHT:
            del game_msgs[0]

        # Add line as tuple with text and color
        game_msgs.append((line,color))


# Initialization & Main Loop

# Font
font_path = 'arial10x10.png'
font_flags = tcod.FONT_TYPE_GREYSCALE | tcod.FONT_LAYOUT_TCOD
tcod.console_set_custom_font(font_path, font_flags)

# Screen
window_title = 'Python 3 libtcod tutorial'
tcod.console_init_root(SCREEN_WIDTH, SCREEN_HEIGHT, window_title, FULLSCREEN)

# Fps
tcod.sys_set_fps(LIMIT_FPS)

# New Console
con = tcod.console_new(SCREEN_WIDTH,SCREEN_HEIGHT)

# Player
fighter_component = Fighter(hp=30, defense=2, power=5, death_function=player_death)
player = Object(0, 0, '@', 'player', tcod.white, blocks=True, fighter=fighter_component)


# List of objects
objects = [player]

make_map()

# Fov map
fov_map = tcod.map_new(MAP_WIDTH, MAP_HEIGHT)
for y in range(MAP_HEIGHT):
    for x in range(MAP_WIDTH):
        tcod.map_set_properties(fov_map, x, y, not map[x][y].block_sight, not map[x][y].blocked)

fov_recompute = True
game_state = 'playing'
player_action = None

# Status bars
panel = tcod.console_new(SCREEN_WIDTH, PANEL_HEIGHT)

# List of game messaes and colors
game_msgs = []

# Welcome message
message('Welcome stranger! Prepare to perish in the Tombs of Ancient Kings!', tcod.red)

mouse = tcod.Mouse()
key = tcod.Key()

# Loop
while not tcod.console_is_window_closed():

    tcod.sys_check_for_event(tcod.EVENT_KEY_PRESS|tcod.EVENT_MOUSE, key, mouse)

    render_all()

    tcod.console_flush()
    
    # Erase old locations
    for object in objects:
        object.clear()

    # Handle keys and exit id needed
    player_action = handle_keys()

    # Exit if needed
    if player_action == 'exit':
        break


    # Let monsters take turn
    if game_state == 'playing' and player_action != 'didnt-take-turn':
        for object in objects:
            if object.ai:
                object.ai.take_turn()