game2.py

import pygame
import sys
from pygame.locals import *


def move(x, y, direction, matrix):
    steps = [0, 0]
    vx = directs[direction][0]
    vy = directs[direction][1]
    try:
        cell = matrix[y + vy][x + vx]
        if cell == "f":
            steps[0] += vx
            steps[1] += vy
        elif cell == "i":
            while matrix[y + steps[1] + vy][x + steps[0] + vx] == "i":
                steps[0] += vx
                steps[1] += vy
            else:
                if matrix[y + steps[1] + vy][x + steps[0] + vx] == "f":
                    steps[0] -= vx
                    steps[1] -= vy
    except IndexError:
        return [0, 0]
    return steps


data = []
matrix = []
with open("data.txt") as file:
    for line in file:
        data.append(line)
ymatrix = int(data[0][0:2])
xmatrix = int(data[0][3:5])
del data[0]
starty = int(data[0][0:2])
startx = int(data[0][3:5])
del data[0]
charx = startx
chary = starty
#this will hold the distance the player should move
char_movement = [0, 0]

pygame.init()
setdisplay = pygame.display.set_mode((xmatrix*16, ymatrix*16))
pygame.display.set_caption ("game")
background = pygame.image.load("background.png")
char = pygame.image.load("char.png")
fps = 30
fpsTime = pygame.time.Clock()

for line in data:
    matrix.append(line.strip().split(" "))

move_keys = {K_UP: "up",
                        K_DOWN: "down",
                        K_LEFT: "left",
                        K_RIGHT: "right"}
directs = {"up": (0, -1),
                "down": (0, 1),
                "left": (-1, 0),
                "right": (1, 0)}

while True:
    setdisplay.blit(background, (0, 0))
    setdisplay.blit(char, (charx * 16, chary * 16))
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
        if event.type == KEYDOWN:
            if event.key in move_keys:
                #if player isn't already moving
                if not any(char_movement):
                    direction = move_keys[event.key]
                    steps = move(charx, chary, direction, matrix)
                    #bank the amount the player shopuld move instead of
                    #moving all at once
                    char_movement[0] += steps[0]
                    char_movement[1] += steps[1]
    #amount to move this frame on each axis
    #possible values will be -1, 0, and 1
    dx, dy = 0, 0
    if char_movement[0]:
        dx = char_movement[0] / abs(char_movement[0])
    if char_movement[1]:
        dy = char_movement[1] / abs(char_movement[1])
    #subtract movement from the "bank"
    char_movement[0] -= dx
    char_movement[1] -= dy
    #and spend it on moving the character
    charx += dx
    chary += dy

    pygame.display.update()
    fpsTime.tick(fps)