day11 First Blood and First Respawn

README.md

@@ -2,7 +2,7 @@
 
 用Python基于Pygame写的贪吃蛇，以及一个对Pygame再次封装的通用游戏类MyGame。
 
-## 与视频教程对应的版本 VERSIONS WITH VIDEO TUTORIALS
+## 视频教程对应版本列表 DAY by DAY TUTORIALS
 
 [视频教程第1集 video tutorial 1](http://v.youku.com/v_show/id_XMTYzMzg5MzQ0NA==.html),
 [视频教程第2集 video tutorial 2](http://v.youku.com/v_show/id_XMTYzNTU0ODA5Mg==.html)
@@ -37,5 +37,8 @@
 - **Day 10** 第一口苹果 First Bite of Apple
 [[源码 source](https://github.com/archtaurus/pysnake/tree/day10/src)],
 [[视频教程 video tutorial](http://v.youku.com/v_show/id_XMTY1MTMwNjIyNA==.html)]
+- **Day 11** 第一滴血，蛇的重生 First Blood and First Respawn
+[[源码 source](https://github.com/archtaurus/pysnake/tree/day11/src)],
+[[视频教程 video tutorial](http://v.youku.com/v_show/id_XMTY1MjY1MjMwMA==.html)]
 
 **[回到最新版本](https://github.com/archtaurus/pysnake/tree/master)**

src/field.py

@@ -5,7 +5,7 @@
 # 功能: define class Firld
 # 许可: General Public License
 # 作者: Zhao Xin (赵鑫) <[email protected]>
-# 时间: 2016.07.20
+# 时间: 2016.07.21
 
 import pygame
 from settings import *
@@ -29,6 +29,8 @@ def put_cell(self, cell):
     def get_cell(self, x, y):
         if 0 <= x < self.columns and 0 <= y < self.rows:
             return self.cell_array[y][x]
+        else:
+            return OUT
 
     def del_cell(self, x, y):
         if 0 <= x < self.columns and 0 <= y < self.rows:
@@ -43,3 +45,6 @@ def draw(self):
                                        CELL_SIZE, CELL_SIZE)
                     self.screen.fill(cell.color1, rect)
                     self.screen.fill(cell.color2, rect.inflate(-4, -4))
+
+    def clear(self):
+        self.cell_array = [[None] * self.columns for i in range(self.rows)]

src/pysnake.py

@@ -6,7 +6,7 @@
 # 功能: main program
 # 许可: General Public License
 # 作者: Zhao Xin (赵鑫) <[email protected]>
-# 时间: 2016.07.20
+# 时间: 2016.07.21
 
 import pygame
 from settings import *
@@ -31,7 +31,9 @@ def __init__(self):
         self.field = Field(self, COLUMNS, ROWS)
         self.apple_counter = 0
         self.apple = Apple(self)
-        self.snake = Snake(self, 0, 0, 5, RIGHT, 5, SNAKE_COLOR_SKIN,
+        self.snake = Snake(self, SNAKE_DEFAULT_X, SNAKE_DEFAULT_Y,
+                           SNAKE_DEFAULT_BODY_LENGTH, RIGHT,
+                           SNAKE_DEFAULT_SPEED, SNAKE_COLOR_SKIN,
                            SNAKE_COLOR_BODY, SNAKE_COLOR_HEAD)
 
         # 控制按键设定
@@ -42,6 +44,7 @@ def __init__(self):
         self.key_bind(KEY_RIGHT, self.snake.turn, direction=RIGHT)
         self.key_bind(pygame.K_EQUALS, self.snake.speed_up)
         self.key_bind(pygame.K_MINUS, self.snake.speed_down)
+        self.key_bind(KEY_RESPAWN, self.snake.respawn)
 
 
 if __name__ == '__main__':

src/settings.py

@@ -5,28 +5,28 @@
 # 功能: define constants, configurations, etc.
 # 许可: General Public License
 # 作者: Zhao Xin (赵鑫) <[email protected]>
-# 时间: 2016.07.20
+# 时间: 2016.07.21
 
 import pygame
 
 # COLORS
 BLACK = 0, 0, 0
 WHITE = 255, 255, 255
 DARK_GREY = 33, 33, 33
+GREY = 127, 127, 127
+LIGHT_GREY = 192, 192, 192
 BACKGROUND_COLOR = BLACK
 GRID_COLOR = DARK_GREY
 APPLE_COLOR1 = 255, 127, 127
 APPLE_COLOR2 = 255, 66, 66
-SNAKE_COLOR_SKIN = 33, 255, 33
-SNAKE_COLOR_BODY = 33, 192, 33
-SNAKE_COLOR_HEAD = 192, 192, 33
 
 # KEY SETTINGS
 KEY_EXIT = pygame.K_ESCAPE
 KEY_UP = pygame.K_UP
 KEY_DOWN = pygame.K_DOWN
 KEY_LEFT = pygame.K_LEFT
 KEY_RIGHT = pygame.K_RIGHT
+KEY_RESPAWN = pygame.K_r
 
 # GAME SETTINGS
 GAME_NAME = "pysnake"
@@ -35,3 +35,18 @@
 COLUMNS, ROWS = SCREEN_WIDTH / CELL_SIZE, SCREEN_HEIGHT / CELL_SIZE
 FPS = 60
 UP, DOWN, LEFT, RIGHT = (0, -1), (0, 1), (-1, 0), (1, 0)
+OUT = -1
+
+# SNAKE DEFAULT SETTINGS
+SNAKE_COLOR_SKIN = 33, 255, 33
+SNAKE_COLOR_BODY = 33, 192, 33
+SNAKE_COLOR_HEAD = 192, 192, 33
+SNAKE_COLOR_SKIN_DEAD = LIGHT_GREY
+SNAKE_COLOR_BODY_DEAD = GREY
+SNAKE_COLOR_HEAD_DEAD = DARK_GREY
+SNAKE_DEFAULT_X = 0
+SNAKE_DEFAULT_Y = 0
+SNAKE_DEFAULT_BODY_LENGTH = 5
+SNAKE_DEFAULT_DIRECTION = RIGHT
+SNAKE_DEFAULT_SPEED = 10
+SNAKE_DEFAULT_LIVE = 100

src/snake.py

@@ -5,7 +5,7 @@
 # 功能: define class Snake
 # 许可: General Public License
 # 作者: Zhao Xin (赵鑫) <[email protected]>
-# 时间: 2016.07.20
+# 时间: 2016.07.21
 
 from settings import *
 from cell import Cell
@@ -47,6 +47,11 @@ def move(self):
             meeting = self.field.get_cell(self.head.x + self.direction[0],
                                           self.head.y + self.direction[1])
 
+            # 死亡审判
+            if meeting and meeting is not self.game.apple:
+                self.die()
+                return
+
             # 判断吃了没有，吃了就不断尾巴了
             if meeting is self.game.apple:
                 self.game.apple.drop()
@@ -84,3 +89,29 @@ def speed_up(self):
     def speed_down(self):
         if self.speed > 1:
             self.speed -= 1
+
+    def die(self):
+        self.alive = False
+        print "游戏结束！！！"
+        for body_cell in self.body:
+            body_cell.color1 = SNAKE_COLOR_SKIN_DEAD
+            body_cell.color2 = SNAKE_COLOR_BODY_DEAD
+        self.head.color1 = SNAKE_COLOR_SKIN_DEAD
+        self.head.color2 = SNAKE_COLOR_HEAD_DEAD
+
+    def respawn(self):
+        # 复生
+        if not self.alive:
+            self.game.apple_counter = 0
+            self.field.clear()              # 移除尸体
+            self.game.apple.drop()
+            self.head = Cell(SNAKE_DEFAULT_X, SNAKE_DEFAULT_Y,
+                             self.skin_color, self.head_color)
+            self.field.put_cell(self.head)
+            tmp_body_cell = Cell(-1, -1, self.skin_color, self.body_color)
+            self.body = [tmp_body_cell] * SNAKE_DEFAULT_BODY_LENGTH
+            self.direction = SNAKE_DEFAULT_DIRECTION
+            self.new_direction = SNAKE_DEFAULT_DIRECTION
+            self.speed = SNAKE_DEFAULT_SPEED
+            self.alive = True
+            self.live = SNAKE_DEFAULT_LIVE