03 - init - Add internal map representation and basis for level handling

03_map.py

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