542 lines
22 KiB
Python
542 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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# maze.py - module for the maze class
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# Copyright (C) 2017, 2018 Nguyễn Gia Phong
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#
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# This file is part of Brutal Maze.
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#
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# Brutal Maze is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# Brutal Maze is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with Brutal Maze. If not, see <https://www.gnu.org/licenses/>.
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__doc__ = 'Brutal Maze module for the maze class'
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from collections import defaultdict, deque
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import json
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from math import pi, log
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from os import path
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from random import choice, sample, uniform
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import pygame
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from .characters import Hero, new_enemy
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from .constants import (
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EMPTY, WALL, HERO, ENEMY, ROAD_WIDTH, WALL_WIDTH, CELL_WIDTH, CELL_NODES,
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MAZE_SIZE, MIDDLE, INIT_SCORE, ENEMIES, MINW, MAXW, SQRT2, SFX_SPAWN,
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SFX_SLASH_ENEMY, SFX_LOSE, ADJACENTS, TANGO_VALUES, BG_COLOR, FG_COLOR,
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COLORS, HERO_HP, ENEMY_HP, ATTACK_SPEED, MAX_WOUND, HERO_SPEED,
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BULLET_LIFETIME, JSON_SEPARATORS)
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from .misc import (
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round2, sign, deg, around, regpoly, fill_aapolygon, play, json_rec)
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from .weapons import LockOn
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class Maze:
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"""Object representing the maze, including the characters.
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Attributes:
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w, h (int): width and height of the display (in px)
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fps (float): current frame rate
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surface (pygame.Surface): the display to draw on
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distance (float): distance between centers of grids (in px)
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x, y (int): coordinates of the center of the hero (in px)
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centerx, centery (float): center grid's center's coordinates (in px)
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rangex, rangey (list): range of the index of the grids on display
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score (float): current score
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map (deque of deque): map of grids representing objects on the maze
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vx, vy (float): velocity of the maze movement (in pixels per frame)
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rotatex, rotatey (int): grids rotated
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bullets (list of .weapons.Bullet): flying bullets
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enemy_weights (dict): probabilities of enemies to be created
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enemies (list of Enemy): alive enemies
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hero (Hero): the hero
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destx, desty (int): the grid the hero is moving to
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stepx, stepy (int): direction the maze is moving
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target (Enemy or LockOn): target to automatically aim at
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next_move (float): time until the hero gets mobilized (in ms)
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glitch (float): time that the maze remain flashing colors (in ms)
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next_slashfx (float): time until next slash effect of the hero (in ms)
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slashd (float): minimum distance for slashes to be effective
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sfx_slash (pygame.mixer.Sound): sound effect of slashed enemy
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sfx_lose (pygame.mixer.Sound): sound effect to be played when you lose
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export (list of defaultdict): records of game states
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export_dir (str): directory containing records of game states
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export_rate (float): milliseconds per snapshot
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next_export (float): time until next snapshot (in ms)
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"""
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def __init__(self, fps, size, headless, export_dir, export_rate):
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self.fps = fps
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self.w, self.h = size
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if headless:
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self.surface = None
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else:
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self.surface = pygame.display.set_mode(size, pygame.RESIZABLE)
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self.export_dir = path.abspath(export_dir) if export_dir else ''
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self.next_export = self.export_rate = export_rate
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self.export = []
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self.distance = (self.w * self.h / 416) ** 0.5
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self.x, self.y = self.w // 2, self.h // 2
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self.centerx, self.centery = self.w / 2.0, self.h / 2.0
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w, h = (int(i/self.distance/2 + 1) for i in size)
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self.rangex = list(range(MIDDLE - w, MIDDLE + w + 1))
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self.rangey = list(range(MIDDLE - h, MIDDLE + h + 1))
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self.score = INIT_SCORE
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self.map = deque(deque(EMPTY for _ in range(MAZE_SIZE * CELL_WIDTH))
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for _ in range(MAZE_SIZE * CELL_WIDTH))
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for x in range(MAZE_SIZE):
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for y in range(MAZE_SIZE): self.new_cell(x, y)
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self.vx = self.vy = 0.0
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self.rotatex = self.rotatey = 0
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self.bullets, self.enemies = [], []
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self.enemy_weights = {color: MINW for color in ENEMIES}
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self.add_enemy()
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self.hero = Hero(self.surface, fps, size)
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self.map[MIDDLE][MIDDLE] = HERO
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self.destx = self.desty = MIDDLE
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self.stepx = self.stepy = 0
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self.target = LockOn(MIDDLE, MIDDLE, retired=True)
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self.next_move = self.glitch = self.next_slashfx = 0.0
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self.slashd = self.hero.R + self.distance/SQRT2
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self.sfx_spawn = SFX_SPAWN
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self.sfx_slash = SFX_SLASH_ENEMY
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self.sfx_lose = SFX_LOSE
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def new_cell(self, x, y):
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"""Draw on the map a new cell whose coordinates are given.
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For the sake of performance, cell corners are NOT redrawn.
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"""
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def draw_bit(bit, dx=0, dy=0):
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startx, starty = x + CELL_NODES[dx], y + CELL_NODES[dy]
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height = ROAD_WIDTH if dy else WALL_WIDTH
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for i in range(ROAD_WIDTH if dx else WALL_WIDTH):
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for j in range(height): self.map[startx + i][starty + j] = bit
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x, y = x * CELL_WIDTH, y * CELL_WIDTH
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draw_bit(WALL)
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walls = set(sample(ADJACENTS, 2))
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walls.add(choice(ADJACENTS))
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for i, j in ADJACENTS:
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draw_bit((WALL if (i, j) in walls else EMPTY), i, j)
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def add_enemy(self):
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"""Add enough enemies."""
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walls = [(i, j) for i in self.rangex for j in self.rangey
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if self.map[i][j] == WALL]
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plums = [e for e in self.enemies if e.color == 'Plum' and e.awake]
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plum = choice(plums) if plums else None
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num = log(self.score, INIT_SCORE)
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while walls and len(self.enemies) < num:
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x, y = choice(walls)
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if all(self.map[x + a][y + b] == WALL for a, b in ADJACENTS):
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continue
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enemy = new_enemy(self, x, y)
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self.enemies.append(enemy)
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if plum is None or not plum.clone(enemy): walls.remove((x, y))
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def get_pos(self, x, y):
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"""Return coordinate of the center of the grid (x, y)."""
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return (self.centerx + (x - MIDDLE)*self.distance,
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self.centery + (y - MIDDLE)*self.distance)
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def get_grid(self, x, y):
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"""Return the grid containing the point (x, y)."""
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return (MIDDLE + round2((x-self.centerx) / self.distance),
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MIDDLE + round2((y-self.centery) / self.distance))
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def get_target(self, x, y):
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"""Return shooting target the grid containing the point (x, y).
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If the grid is the hero, return a retired target.
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"""
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gridx, gridy = self.get_grid(x, y)
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if gridx == gridy == MIDDLE: return LockOn(gridx, gridy, True)
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for enemy in self.enemies:
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if not enemy.isunnoticeable(gridx, gridy): return enemy
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return LockOn(gridx, gridy)
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def get_score(self):
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"""Return the current score."""
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return int(self.score - INIT_SCORE)
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def get_color(self):
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"""Return color of a grid."""
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return choice(TANGO_VALUES)[0] if self.glitch > 0 else FG_COLOR
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def draw(self):
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"""Draw the maze."""
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self.surface.fill(BG_COLOR)
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if self.next_move <= 0:
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for i in self.rangex:
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for j in self.rangey:
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if self.map[i][j] != WALL: continue
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x, y = self.get_pos(i, j)
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square = regpoly(4, self.distance / SQRT2, pi / 4, x, y)
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fill_aapolygon(self.surface, square, self.get_color())
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for enemy in self.enemies: enemy.draw()
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if not self.hero.dead: self.hero.draw()
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bullet_radius = self.distance / 4
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for bullet in self.bullets: bullet.draw(bullet_radius)
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pygame.display.flip()
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pygame.display.set_caption(
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'Brutal Maze - Score: {}'.format(self.get_score()))
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def isdisplayed(self, x, y):
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"""Return True if the grid (x, y) is in the displayable part
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of the map, False otherwise.
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"""
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return (self.rangex[0] <= x <= self.rangex[-1]
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and self.rangey[0] <= y <= self.rangey[-1])
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def rotate(self):
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"""Rotate the maze if needed."""
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x = int((self.centerx-self.x) * 2 / self.distance)
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y = int((self.centery-self.y) * 2 / self.distance)
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if x == y == 0: return
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for enemy in self.enemies:
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if self.map[enemy.x][enemy.y] == ENEMY:
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self.map[enemy.x][enemy.y] = EMPTY
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self.map[MIDDLE][MIDDLE] = EMPTY
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self.centerx -= x * self.distance
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self.map.rotate(x)
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self.rotatex += x
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self.centery -= y * self.distance
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for d in self.map: d.rotate(y)
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self.rotatey += y
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self.map[MIDDLE][MIDDLE] = HERO
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if self.map[self.destx][self.desty] != HERO:
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self.destx += x
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self.desty += y
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self.stepx = self.stepy = 0
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# Respawn the enemies that fall off the display
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killist = []
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for i, enemy in enumerate(self.enemies):
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enemy.place(x, y)
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if not self.isdisplayed(enemy.x, enemy.y):
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self.score += enemy.wound
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enemy.die()
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killist.append(i)
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for i in reversed(killist): self.enemies.pop(i)
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self.add_enemy()
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# LockOn target is not yet updated.
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if isinstance(self.target, LockOn):
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self.target.place(x, y, self.isdisplayed)
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# Regenerate the maze
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if abs(self.rotatex) == CELL_WIDTH:
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self.rotatex = 0
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for i in range(CELL_WIDTH): self.map[i].rotate(-self.rotatey)
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for i in range(MAZE_SIZE): self.new_cell(0, i)
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for i in range(CELL_WIDTH): self.map[i].rotate(self.rotatey)
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if abs(self.rotatey) == CELL_WIDTH:
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self.rotatey = 0
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self.map.rotate(-self.rotatex)
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for i in range(MAZE_SIZE): self.new_cell(i, 0)
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self.map.rotate(self.rotatex)
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def get_distance(self, x, y):
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"""Return the distance from the center of the maze to the point
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(x, y).
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"""
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return ((self.x-x)**2 + (self.y-y)**2)**0.5
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def hit_hero(self, wound, color):
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"""Handle the hero when he loses HP."""
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if self.enemy_weights[color] + wound < MAXW:
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self.enemy_weights[color] += wound
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if color == 'Orange':
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# If called by close-range attack, this is FPS-dependant, although
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# in playable FPS (24 to infinity), the difference within 2%.
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self.hero.next_heal = abs(self.hero.next_heal * (1 - wound))
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elif (uniform(0, sum(self.enemy_weights.values()))
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< self.enemy_weights[color]):
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self.hero.next_heal = -1.0 # what doesn't kill you heals you
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if color == 'Butter' or color == 'ScarletRed':
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wound *= ENEMY_HP
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elif color == 'Chocolate':
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self.hero.highness += wound
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wound = 0
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elif color == 'SkyBlue':
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self.next_move = max(self.next_move, 0) + wound*1000
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wound = 0
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if wound and sum(self.hero.wounds) < MAX_WOUND:
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self.hero.wounds[-1] += wound
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def slash(self):
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"""Handle close-range attacks."""
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for enemy in self.enemies: enemy.slash()
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if not self.hero.spin_queue: return
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killist = []
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for i, enemy in enumerate(self.enemies):
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d = self.slashd - enemy.distance
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if d > 0:
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wound = d * SQRT2 / self.distance
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if self.next_slashfx <= 0:
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play(self.sfx_slash, wound, enemy.get_angle())
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self.next_slashfx = ATTACK_SPEED
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enemy.hit(wound / self.hero.spin_speed)
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if enemy.wound >= ENEMY_HP:
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self.score += enemy.wound
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enemy.die()
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killist.append(i)
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for i in reversed(killist): self.enemies.pop(i)
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self.add_enemy()
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def track_bullets(self):
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"""Handle the bullets."""
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self.bullets.extend(self.hero.shots)
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fallen = []
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block = (self.hero.spin_queue and self.hero.next_heal < 0
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and self.hero.next_strike > self.hero.spin_queue / self.fps)
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for i, bullet in enumerate(self.bullets):
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wound = bullet.fall_time / BULLET_LIFETIME
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bullet.update(self.fps, self.distance)
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gridx, gridy = self.get_grid(bullet.x, bullet.y)
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if wound <= 0 or not self.isdisplayed(gridx, gridy):
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fallen.append(i)
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elif bullet.color == 'Aluminium':
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if self.map[gridx][gridy] == WALL and self.next_move <= 0:
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self.glitch = wound * 1000
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enemy = new_enemy(self, gridx, gridy)
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enemy.awake = True
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self.map[gridx][gridy] = ENEMY
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play(self.sfx_spawn, enemy.spawn_volumn, enemy.get_angle())
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enemy.hit(wound)
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self.enemies.append(enemy)
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fallen.append(i)
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continue
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for j, enemy in enumerate(self.enemies):
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if not enemy.awake: continue
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if bullet.get_distance(*enemy.pos) < self.distance:
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enemy.hit(wound)
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if enemy.wound >= ENEMY_HP:
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self.score += enemy.wound
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enemy.die()
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self.enemies.pop(j)
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play(bullet.sfx_hit, wound, bullet.angle)
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fallen.append(i)
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break
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elif bullet.get_distance(self.x, self.y) < self.distance:
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if block:
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self.hero.next_strike = (abs(self.hero.spin_queue/self.fps)
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+ ATTACK_SPEED)
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play(bullet.sfx_missed, wound, bullet.angle + pi)
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else:
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self.hit_hero(wound, bullet.color)
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play(bullet.sfx_hit, wound, bullet.angle + pi)
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fallen.append(i)
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for i in reversed(fallen): self.bullets.pop(i)
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def is_valid_move(self, vx=0.0, vy=0.0):
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"""Return dx or dy if it it valid to move the maze in that
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velocity, otherwise return 0.0.
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"""
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d = self.distance/2 + self.hero.R
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herox, heroy, dx, dy = self.x - vx, self.y - vy, sign(vx), sign(vy)
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for gridx in range(MIDDLE - dx - 1, MIDDLE - dx + 2):
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for gridy in range(MIDDLE - dy - 1, MIDDLE - dy + 2):
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x, y = self.get_pos(gridx, gridy)
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if (max(abs(herox - x), abs(heroy - y)) < d
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and self.map[gridx][gridy] == WALL):
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return 0.0
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for enemy in self.enemies:
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x, y = self.get_pos(enemy.x, enemy.y)
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if max(abs(herox - x), abs(heroy - y)) * 2 < self.distance:
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return 0.0
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return vx or vy
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def expos(self, x, y):
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"""Return position of the given coordinates in rounded percent."""
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cx = len(self.rangex)*50 + (x - self.centerx)/self.distance*100
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cy = len(self.rangey)*50 + (y - self.centery)/self.distance*100
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return round2(cx), round2(cy)
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def update_export(self, forced=False):
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"""Update the maze's data export and return the last record."""
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if self.next_export > 0 and not forced or self.hero.dead: return
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export = defaultdict(list)
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export['s'] = self.get_score()
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if self.next_move <= 0:
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for y in self.rangey:
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export['m'].append(''.join(
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COLORS[self.get_color()] if self.map[x][y] == WALL else '0'
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for x in self.rangex))
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x, y = self.expos(self.x, self.y)
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export['h'] = [
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COLORS[self.hero.get_color()], x, y, deg(self.hero.angle),
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int(self.hero.next_strike <= 0), int(self.hero.next_heal <= 0)]
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for enemy in self.enemies:
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if enemy.isunnoticeable(): continue
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x, y = self.expos(*enemy.pos)
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color, angle = COLORS[enemy.get_color()], deg(enemy.angle)
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export['e'].append([color, x, y, angle])
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for bullet in self.bullets:
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x, y = self.expos(bullet.x, bullet.y)
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color, angle = COLORS[bullet.get_color()], deg(bullet.angle)
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if color != '0': export['b'].append([color, x, y, angle])
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if self.next_export <= 0:
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export['t'] = round2(self.export_rate - self.next_export)
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self.export.append(export)
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self.next_export = self.export_rate
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return export
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def update(self, fps):
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"""Update the maze."""
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self.fps = fps
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self.vx = self.is_valid_move(vx=self.vx)
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self.centerx += self.vx
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self.vy = self.is_valid_move(vy=self.vy)
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self.centery += self.vy
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self.next_move -= 1000.0 / fps
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self.glitch -= 1000.0 / fps
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self.next_slashfx -= 1000.0 / fps
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self.next_export -= 1000.0 / fps
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self.rotate()
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if self.vx or self.vy or self.hero.firing or self.hero.slashing:
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for enemy in self.enemies: enemy.wake()
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for bullet in self.bullets: bullet.place(self.vx, self.vy)
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for enemy in self.enemies: enemy.update()
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self.track_bullets()
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if not self.hero.dead:
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self.hero.update(fps)
|
|
self.slash()
|
|
if self.hero.wound >= HERO_HP: self.lose()
|
|
self.update_export()
|
|
|
|
def resize(self, size):
|
|
"""Resize the maze."""
|
|
self.w, self.h = size
|
|
self.surface = pygame.display.set_mode(size, pygame.RESIZABLE)
|
|
self.hero.resize(size)
|
|
|
|
offsetx = (self.centerx-self.x) / self.distance
|
|
offsety = (self.centery-self.y) / self.distance
|
|
self.distance = (self.w * self.h / 416) ** 0.5
|
|
self.x, self.y = self.w // 2, self.h // 2
|
|
self.centerx = self.x + offsetx*self.distance
|
|
self.centery = self.y + offsety*self.distance
|
|
w, h = int(self.w/self.distance/2 + 1), int(self.h/self.distance/2 + 1)
|
|
self.rangex = list(range(MIDDLE - w, MIDDLE + w + 1))
|
|
self.rangey = list(range(MIDDLE - h, MIDDLE + h + 1))
|
|
self.slashd = self.hero.R + self.distance/SQRT2
|
|
|
|
def set_step(self, check=(lambda x, y: True)):
|
|
"""Work out next step on the shortest path to the destination.
|
|
|
|
Return whether target is impossible to reach and hero should
|
|
shoot toward it instead.
|
|
"""
|
|
if self.stepx or self.stepy and self.vx == self.vy == 0.0:
|
|
x, y = MIDDLE - self.stepx, MIDDLE - self.stepy
|
|
if self.stepx and not self.stepy:
|
|
nextx = x - self.stepx
|
|
n = self.map[x][y - 1] == EMPTY == self.map[nextx][y - 1]
|
|
s = self.map[x][y + 1] == EMPTY == self.map[nextx][y + 1]
|
|
self.stepy = n - s
|
|
elif not self.stepx and self.stepy:
|
|
nexty = y - self.stepy
|
|
w = self.map[x - 1][y] == EMPTY == self.map[x - 1][nexty]
|
|
e = self.map[x + 1][y] == EMPTY == self.map[x + 1][nexty]
|
|
self.stepx = w - e
|
|
return False
|
|
|
|
# Shoot WALL and ENEMY instead
|
|
if self.map[self.destx][self.desty] != EMPTY:
|
|
self.stepx = self.stepy = 0
|
|
return True
|
|
|
|
# Forest Fire algorithm with step count
|
|
queue = defaultdict(list, {0: [(self.destx, self.desty)]})
|
|
visited, count, distance = set(), 1, 0
|
|
while count:
|
|
if not queue[distance]: distance += 1
|
|
x, y = queue[distance].pop()
|
|
count -= 1
|
|
if (x, y) not in visited:
|
|
visited.add((x, y))
|
|
else:
|
|
continue
|
|
|
|
dx, dy = MIDDLE - x, MIDDLE - y
|
|
if dx**2 + dy**2 <= 2:
|
|
self.stepx, self.stepy = dx, dy
|
|
return False
|
|
for i, j in around(x, y):
|
|
if self.map[i][j] == EMPTY and check(i, j):
|
|
queue[distance + 1].append((i, j))
|
|
count += 1
|
|
|
|
# Failed to find way to move to target
|
|
self.stepx = self.stepy = 0
|
|
return True
|
|
|
|
def isfast(self):
|
|
"""Return if the hero is moving faster than HERO_SPEED."""
|
|
return (self.vx**2+self.vy**2)**0.5*self.fps > HERO_SPEED*self.distance
|
|
|
|
def dump_records(self):
|
|
"""Dump JSON records."""
|
|
if self.export_dir:
|
|
with open(json_rec(self.export_dir), 'w') as f:
|
|
json.dump(self.export, f, separators=JSON_SEPARATORS)
|
|
|
|
def lose(self):
|
|
"""Handle loses."""
|
|
self.hero.dead = True
|
|
self.hero.wound = HERO_HP
|
|
self.hero.slashing = self.hero.firing = False
|
|
self.destx = self.desty = MIDDLE
|
|
self.stepx = self.stepy = 0
|
|
self.vx = self.vy = 0.0
|
|
play(self.sfx_lose)
|
|
self.dump_records()
|
|
|
|
def reinit(self):
|
|
"""Open new game."""
|
|
self.centerx, self.centery = self.w / 2.0, self.h / 2.0
|
|
self.score, self.export = INIT_SCORE, []
|
|
self.map = deque(deque(EMPTY for _ in range(MAZE_SIZE * CELL_WIDTH))
|
|
for _ in range(MAZE_SIZE * CELL_WIDTH))
|
|
for x in range(MAZE_SIZE):
|
|
for y in range(MAZE_SIZE): self.new_cell(x, y)
|
|
self.map[MIDDLE][MIDDLE] = HERO
|
|
self.destx = self.desty = MIDDLE
|
|
self.stepx = self.stepy = 0
|
|
self.vx = self.vy = 0.0
|
|
self.rotatex = self.rotatey = 0
|
|
self.bullets, self.enemies = [], []
|
|
self.enemy_weights = {color: MINW for color in ENEMIES}
|
|
self.add_enemy()
|
|
|
|
self.next_move = self.next_slashfx = self.hero.next_strike = 0.0
|
|
self.target = LockOn(MIDDLE, MIDDLE, retired=True)
|
|
self.hero.next_heal = -1.0
|
|
self.hero.highness = 0.0
|
|
self.hero.slashing = self.hero.firing = self.hero.dead = False
|
|
self.hero.spin_queue = self.hero.wound = 0.0
|
|
self.hero.wounds = deque([0.0])
|