1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
#+AUTHOR: bdunahu
#+TITLE: PlayersCollection.py
#+DESCRIPTION: methods for handling and querying snake objects
import pygame as pg
from random import randint
from collections import namedtuple
from enum import Enum
class Direction(Enum):
UP = 0
RIGHT = 1
DOWN = 2
LEFT = 3
Point = namedtuple('Point', 'x, y')
YELLOW = (255,255,0)
RED = (255,0,0)
PURPLE = (204,51,255)
WHITE = (255,255,255)
PLAYER_COLOR = [YELLOW, RED, PURPLE, WHITE]
WINDOW_WIDTH = 640
WINDOW_HEIGHT = 480
GAME_UNITS = 40
DISPLAY = None
class Players():
def __init__(self, snake_size, num_players, display, s_starts, window_width=640, window_height=480, game_units=40):
''' define array list of new Snake objects '''
global WINDOW_WIDTH
global WINDOW_HEIGHT
global GAME_UNITS
global DISPLAY
WINDOW_WIDTH = window_width
WINDOW_HEIGHT = window_height
GAME_UNITS = game_units
DISPLAY = display
self._index = 0
self.num_players = num_players
self.players = [Snake(snake_size, player_id, s_starts[i])
for i, player_id in enumerate(range(num_players))]
def __iter__(self):
return iter(self.players)
def __getitem__(self, index):
return self.players[index]
def full_reset(self):
''' reset every snake position '''
# map(lambda player:player.reset(), self.players)
for player in self.players:
player.reset()
def move_all(self):
''' move all snakes '''
# map(lambda player:player.move(), self.players)
for player in self.players:
player.move()
def reward_killer(self, player):
''' split play length up against killing snakes '''
killer = self._point_lookup(player.head)
if not killer == None and not killer == player:
rewards = player.score.curr_score + player.size
killer.deficit += rewards
killer.score.curr_score += rewards
killer.score.total_score += rewards
def _point_lookup(self, head):
for player in self.players:
if head in player.snake:
return player
return None
def draw(self):
''' draw all snakes '''
# map(lambda player:player.draw(), self.players)
for player in self.players:
player.draw()
class Snake():
def __init__(self, initial_size, player_id, start):
''' define initial size (length), direction, and position '''
self.player_id = player_id
self.start = start
self.size = initial_size
self.direction = None
self.head = None
self.snake = []
self.score = Score(self.player_id)
self.deficit = 0 # for how many moves does this snake need to grow?
def reset(self):
self.score.reset()
self.deficit = 0
self.direction = Direction.RIGHT.value
if self.start == None:
x = randint(0, (WINDOW_WIDTH-GAME_UNITS )//GAME_UNITS )*GAME_UNITS
y = randint(0, (WINDOW_HEIGHT-GAME_UNITS )//GAME_UNITS )*GAME_UNITS
else:
x = self.start[0]
y = self.start[1]
self.head = Point(x,y)
self.snake = [self.head]
for seg in range(self.size-1):
self.snake.append(Point(self.head.x-((seg+1)*GAME_UNITS), self.head.y))
def move(self):
''' update snake coordinates by inserting new head '''
x = self.head.x
y = self.head.y
if self.direction == Direction.RIGHT.value:
x += GAME_UNITS
if self.direction == Direction.LEFT.value:
x -= GAME_UNITS
if self.direction == Direction.DOWN.value:
y += GAME_UNITS
if self.direction == Direction.UP.value:
y -= GAME_UNITS
self.head = Point(x, y)
self.snake.insert(0,self.head)
def in_wall(self):
return True if (self.head.x > WINDOW_WIDTH - GAME_UNITS or
self.head.x < 0 or
self.head.y > WINDOW_HEIGHT - GAME_UNITS or
self.head.y < 0) else False
def draw(self):
''' draw rectangle(s) directly on field '''
for seg in self.snake: # see explanation in engine.org
pg.draw.rect(DISPLAY, PLAYER_COLOR[self.player_id], pg.Rect(seg.x, seg.y,
GAME_UNITS, GAME_UNITS))
self.score.draw()
class Score():
def __init__(self, player_id):
''' initialize score counter '''
self.player_id = player_id
self.font = pg.font.SysFont("monospace", 16)
self.curr_score = 0
self.total_score = 0
self.deaths = 0
self.kills = 0
def scored(self):
self.curr_score += 1
self.total_score += 1
def reset(self):
self.curr_score = 0
def draw(self):
''' draw score on top left '''
score_surf = self.font.render(f'Current: {self.curr_score} Total: {self.total_score}', True, PLAYER_COLOR[self.player_id])
DISPLAY.blit(score_surf, (0, 0+24*self.player_id))
|
