275 lines
7.8 KiB
Python
275 lines
7.8 KiB
Python
import pyglet
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from pyglet.window import key
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import re
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import sys
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import random
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# constants
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TILE_SIZE_X = 16
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TILE_SIZE_Y = 16
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MIN_LEAF_SIZE = 8
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class Leaf:
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""" Leaf of the BSP """
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def __init__(self, x, y, w, h, id):
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self.id = id
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self.x = x
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self.y = y
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self.width = w
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self.height = h
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self.left_leaf = None
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self.right_leaf = None
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def print_leaf(self):
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print('[Leaf]' + str(self.id) + ': (' + str(self.x) + '), (' + str(self.y) + ')' +
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' - ' + str(self.width) + 'x' + str(self.height))
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def is_terminal(self):
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""" Returns True if the leave has no children """
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if self.left_leaf or self.right_leaf:
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return False
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return True
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def split(self):
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"""
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:return: True if the leaf has been split
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"""
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# self.print_leaf()
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# choose direction
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# TODO: if leaf is not so square, split along the long side
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# if width > XX% height (25, 33 ?) -> split vertical
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if random.random() < 0.5:
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# x
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if self.width < MIN_LEAF_SIZE * 2: # leaf is too small
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return False
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split_point = random.randint(MIN_LEAF_SIZE, self.width - MIN_LEAF_SIZE)
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self.left_leaf = Leaf(self.x, self.y, split_point, self.height, self.id+1)
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self.right_leaf = Leaf(self.x + split_point, self.y, self.width - split_point, self.height, self.id+2)
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else:
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# y
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if self.height < MIN_LEAF_SIZE * 2: # leaf is too small
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return False
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split_point = random.randint(MIN_LEAF_SIZE, self.height - MIN_LEAF_SIZE)
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self.left_leaf = Leaf(self.x, self.y, self.width, split_point, self.id+1)
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self.right_leaf = Leaf(self.x, self.y + split_point, self.width, self.height - split_point, self.id+2)
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return True
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class Room:
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""" room """
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def __init__(self, x, y, w, h, id):
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self.x = x
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self.y = y
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self.width = w
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self.height = h
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self.id = id
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self.print_room()
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def print_room(self):
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print('[room]' + str(self.id) + ': (' + str(self.x) + '), (' + str(self.y) + ')' +
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' - ' + str(self.width) + 'x' + str(self.height))
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def draw_map(self, tilemap):
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# first wall
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for x in range(0, self.width):
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tilemap[self.x + x][self.y] = Level.TILE_WALL
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# middle
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for y in range(1, self.height - 1):
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tilemap[self.x][self.y + y] = Level.TILE_WALL
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for x in range(1, self.width - 1):
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tilemap[self.x + x][self.y + y] = Level.TILE_GROUND
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tilemap[self.x ++ self.width - 1][self.y + y] = Level.TILE_WALL
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# end
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for x in range(0, self.width):
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tilemap[self.x + x][self.y + self.height - 1] = Level.TILE_WALL
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def center(self):
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return round(self.x + self.width/2), round(self.y + self.height/2)
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class Level:
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TILE_WALL = 0
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TILE_ROAD = 1
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TILE_GROUND = 2
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TILE_HALLWAY = 3
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def __init__(self, sizex, sizey, tile_file=None):
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self.sizex, self.sizey = sizex, sizey
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self.tileset = []
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self.tilemap = []
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if tile_file:
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self.load_tileset(tile_file)
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self.tree = None
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self.rooms = []
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self.regenerate()
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def load_tileset(self, tile_file):
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resource_file = open(tile_file)
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line = resource_file.readline().strip()
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while line:
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image_file = re.compile('\d: ').split(line)[1]
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print('loading tile: ' + str(image_file))
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self.tileset.append(pyglet.resource.image(image_file))
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line = resource_file.readline().strip()
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resource_file.close()
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def generate_tree(self):
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# init tree
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tree = [Leaf(0, 0, 30, 30, 0)]
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# split leaves until none succeed
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# Lists are ordered. Tree will be created and travel from left to right
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for l in tree:
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if l.split():
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tree.append(l.left_leaf)
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tree.append(l.right_leaf)
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return tree
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def generate_rooms(self, leaf, tilemap, room_list):
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"""
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generate rooms inside partitioned space
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:return: a list of generated rooms
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"""
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if leaf.left_leaf:
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self.generate_rooms(leaf.left_leaf, tilemap, room_list)
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if leaf.right_leaf:
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self.generate_rooms(leaf.right_leaf, tilemap, room_list)
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if not leaf.left_leaf and not leaf.right_leaf:
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room = self.generate_room(leaf, tilemap)
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room_list.append(room)
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return room_list
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def generate_room(self, leaf, tilemap):
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# Leave space for walls
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x = random.randint(leaf.x + 1, leaf.x + 2)
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y = random.randint(leaf.y + 1, leaf.y + 2)
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w = random.randint(MIN_LEAF_SIZE / 2, leaf.width - 2)
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h = random.randint(MIN_LEAF_SIZE / 2, leaf.height - 2)
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r = Room(x, y, w, h, leaf.id)
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r.draw_map(tilemap)
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return r
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def regenerate(self):
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"""" generate a new level """
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self.tree = self.generate_tree()
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# initialize tilemap with road/ground
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self.tilemap = [[self.TILE_GROUND for y in range(0, self.sizey)] for x in range(0, self.sizex)]
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# create rooms from partitions
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self.rooms = self.generate_rooms(self.tree[0], self.tilemap, [])
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self.generate_hallways()
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def draw_map(self):
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for y in range(0, self.sizey):
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for x in range(0, self.sizex):
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self.tileset[self.tilemap[x][y]].blit(x*TILE_SIZE_X, y*TILE_SIZE_Y)
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def dump_tilemap(self):
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for y in range(0, self.sizey):
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for x in range(0, self.sizex):
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print(self.tilemap[x][y], end="")
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print("")
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def generate_hallways(self):
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""" """
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if len(self.rooms) < 2:
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# out of luck ?
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return
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room_a = self.rooms[0]
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for r in self.rooms[1:]:
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room_b = r
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self.generate_hallway(room_a, room_b)
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room_a = room_b
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def generate_hallway(self, room_a, room_b):
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""" """
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print("hallway between room" + str(room_a.id) + " and room " + str(room_b.id))
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(xa, ya) = room_a.center()
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(xb, yb) = room_b.center()
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# horizontal part
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if xa < xb:
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start_x = xa
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end_x = xb
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else:
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start_x = xb
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end_x = xa
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print("h_hw form " + str(start_x) + " and " + str(end_x))
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for x in range(start_x, end_x):
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self.tilemap[x][ya] = self.TILE_ROAD
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# vertical part
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if ya < yb:
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start_y = ya
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end_y = yb
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else:
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start_y = yb
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end_y = ya
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print("v_hw form " + str(start_y) + " and " + str(end_y))
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for y in range(start_y, end_y):
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self.tilemap[end_x][y] = self.TILE_ROAD
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##
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# main
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##
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# main window
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window = pyglet.window.Window()
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@window.event
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def on_key_press(symbol, modifiers):
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# TODO: ugly hack
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global level
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if symbol == key.Q:
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print('Will quit')
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if symbol == key.R:
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print('Regeneration')
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level.regenerate()
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window.invalid = True
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if symbol == key.D:
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level.dump_tilemap()
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elif symbol == key.LEFT:
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print('Left arrow')
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elif symbol == key.ENTER:
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print('Enter !')
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@window.event
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def on_draw():
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window.clear()
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level.draw_map()
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label.draw()
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# init random
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seed = random.randint(0, sys.maxsize)
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print("Using seed: " + str(seed))
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random.seed(seed)
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label_txt = 'Plop World seed: ' + str(seed)
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label = pyglet.text.Label(label_txt, x=window.width*5/6, y=window.height*5/6, anchor_x='center', anchor_y='center',
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multiline=True, width=window.width - window.width*5/6)
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level = Level(30, 30, 'tiles.txt')
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pyglet.app.run()
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