Roguelike Tutorial, using python3+tld, part 1 code

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This is part of a series of tutorials; the main page can be found here.

The tutorial uses tld version 1.5.3 and Python 3.5

Showing the @ on screen

#!/usr/bin/env python3

import tdl

#actual size of the window
SCREEN_WIDTH = 80
SCREEN_HEIGHT = 65

LIMIT_FPS = 20  #20 frames-per-second maximum


tdl.set_font('arial10x10.png', greyscale=True, altLayout=True)

console = tdl.init(SCREEN_WIDTH, SCREEN_HEIGHT, title="Roguelike", fullscreen=False)

tdl.setFPS(LIMIT_FPS)

while not tdl.event.is_window_closed():

    console.draw_char(1, 1, '@', bg=None, fg=(255,255,255))
    
    tdl.flush()


Moving around

#!/usr/bin/env python3

import tdl

#actual size of the window
SCREEN_WIDTH = 80
SCREEN_HEIGHT = 65

LIMIT_FPS = 20  #20 frames-per-second maximum

def handle_keys():
    global playerx, playery
    
    '''
    #realtime

    keypress = False
    for event in tdl.event.get():
        if event.type == 'KEYDOWN':
           user_input = event
           keypress = True
    if not keypress:
        return
    '''

    #turn-based
    user_input = tdl.event.key_wait()

    if user_input.key == 'ENTER' and user_input.alt:
        #Alt+Enter: toggle fullscreen
        tdl.set_fullscreen(True)
 
    elif user_input.key == 'ESCAPE':
        return True  #exit game

    #movement keys
    if user_input.key == 'UP':
        playery -= 1

    elif user_input.key == 'DOWN':
        playery += 1

    elif user_input.key == 'LEFT':
        playerx -= 1

    elif user_input.key == 'RIGHT':
        playerx += 1


#############################################
# Initialization & Main Loop                #
#############################################

tdl.set_font('arial10x10.png', greyscale=True, altLayout=True)
console = tdl.init(SCREEN_WIDTH, SCREEN_HEIGHT, title="Roguelike", fullscreen=False)
tdl.setFPS(LIMIT_FPS)

playerx = SCREEN_WIDTH//2
playery = SCREEN_HEIGHT//2

while not tdl.event.is_window_closed():

    console.draw_char(playerx, playery, '@', bg=None, fg=(255,255,255))

    tdl.flush()

    console.draw_char(playerx, playery, ' ', bg=None)

    #handle keys and exit game if needed
    exit_game = handle_keys()
    if exit_game:
        break