#!/usr/bin/env python3 # ---------------------------------------------------------------------------- # "THE BEER-WARE LICENSE" (Revision 42): # wrote this file. As long as you retain this notice # you can do whatever you want with this stuff. If we meet some day, and you # think this stuff is worth it, you can buy me a beer in return. Thomas Buck # ---------------------------------------------------------------------------- from scroll import ScrollText import time import random import util class Snake: def __init__(self, g, i, sc = (0, 255, 0), d = (0, 0, 255), bg = (0, 0, 0), ts = 0.3, su = 0.75, to = 60.0): self.gui = g self.input = i self.colors = [ bg, sc, d ] self.timestep = ts self.timeout = to self.speedup = su self.winText = ScrollText(self.gui, "You Won!", "uushi", 1, 50, (0, 255, 0)) self.loseText = ScrollText(self.gui, "Game Over!", "uushi", 1, 50, (255, 0, 0)) self.scoreText = ScrollText(self.gui, "Score:", "uushi", 3, 50, sc) self.text_c = (0, 0, 255) self.fact = int(self.gui.width / self.gui.panelW) random.seed() self.restart() def restart(self): self.start = time.time() self.last = time.time() self.direction = "r" self.directionTmp = "r" self.score = 0 self.data = [[0 for y in range(int(self.gui.height / self.fact))] for x in range(int(self.gui.width / self.fact))] self.player = [ (int(self.gui.width / 2 / self.fact), int(self.gui.height / 2 / self.fact)) ] self.data[self.player[0][0]][self.player[0][1]] = 1 DrawText = util.getTextDrawer() self.text = DrawText(self.gui, self.text_c) self.old_keys = { "left": False, "right": False, "up": False, "down": False, "a": False, "b": False, "x": False, "y": False, "l": False, "r": False, "start": False, "select": False, } self.placeDot() def finished(self): if self.input == None: # backup timeout for "AI" if (time.time() - self.start) >= self.timeout: return True if self.direction == "": # game over screen return self.scoreText.finished() return False def placeDot(self): d = (random.randrange(0, int(self.gui.width / self.fact)), random.randrange(0, int(self.gui.height / self.fact))) while (self.data[d[0]][d[1]] != 0) or (d[0] < 15) or (d[1] < 8): d = (random.randrange(0, int(self.gui.width / self.fact)), random.randrange(0, int(self.gui.height / self.fact))) self.data[d[0]][d[1]] = 2 def buttons(self): keys = self.input.get() if keys["left"] and (not self.old_keys["left"]) and (not self.old_keys["select"]): self.directionTmp = "l" elif keys["right"] and (not self.old_keys["right"]) and (not self.old_keys["select"]): self.directionTmp = "r" elif keys["up"] and (not self.old_keys["up"]) and (not self.old_keys["select"]): self.directionTmp = "u" elif keys["down"] and (not self.old_keys["down"]) and (not self.old_keys["select"]): self.directionTmp = "d" elif (keys["select"] and keys["start"] and (not self.old_keys["start"])) or (keys["start"] and keys["select"] and (not self.old_keys["select"])): self.restart() self.old_keys = keys.copy() def step(self): player = self.player[len(self.player) - 1] if self.direction == "r": player = (player[0] + 1, player[1]) elif self.direction == "l": player = (player[0] - 1, player[1]) elif self.direction == "u": player = (player[0], player[1] - 1) elif self.direction == "d": player = (player[0], player[1] + 1) if (player[0] < 0) or (player[1] < 0) or (player[0] >= int(self.gui.width / self.fact)) or (player[1] >= int(self.gui.height / self.fact)): return False if self.data[player[0]][player[1]] == 0: # remove last tail piece if not on dot self.data[self.player[0][0]][self.player[0][1]] = 0 self.player.pop(0) elif self.data[player[0]][player[1]] == 1: # snake crashed into itself return False else: # collected a dot self.score += 1 if self.score >= int(self.gui.width / self.fact) * int(self.gui.height / self.fact): return False self.timestep = self.timestep * self.speedup self.placeDot() self.player.append(player) self.data[player[0]][player[1]] = 1 return True def finishedEndScreen(self): if self.score >= int(self.gui.width / self.fact) * int(self.gui.height / self.fact): return self.winText.finished() else: return self.loseText.finished() def drawEndScreen(self): if self.score >= int(self.gui.width / self.fact) * int(self.gui.height / self.fact): self.winText.draw() else: self.loseText.draw() def drawScoreScreen(self): self.scoreText.draw() def draw(self): if self.input != None: self.buttons() else: # TODO "AI" pass if self.direction == "": if self.finishedEndScreen(): self.drawScoreScreen() else: self.drawEndScreen() self.scoreText.restart() return now = time.time() if (now - self.last) >= self.timestep: self.last = now # only allow valid inputs tmp = self.direction + self.directionTmp if (tmp != "lr") and (tmp != "rl") and (tmp != "ud") and (tmp != "du"): self.direction = self.directionTmp cont = self.step() if cont == False: self.direction = "" self.scoreText.setText("Score: " + str(self.score), "uushi") self.winText.restart() self.loseText.restart() self.scoreText.restart() for x in range(0, int(self.gui.width / self.fact)): for y in range(0, int(self.gui.height / self.fact)): for x1 in range(0, self.fact): for y1 in range(0, self.fact): self.gui.set_pixel(x * self.fact + x1, y * self.fact + y1, self.colors[self.data[x][y]]) # draw score self.text.setText(str(self.score), "tom-thumb") self.text.draw(-1, self.gui.height / 2 - 2) if __name__ == "__main__": # Need to import InputWrapper before initializing RGB Matrix on Pi i = util.getInput() t = util.getTarget(i) d = Snake(t, i) util.loop(t, d.draw)