Diff: source/Snake.cpp

Revision:

8:110d5af6f70b

Parent:

7:6b26df2a055a

--- a/source/Snake.cpp	Fri Apr 08 18:04:40 2016 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,206 +0,0 @@
-/*
-The MIT License (MIT)
-
-Copyright (c) 2016 British Broadcasting Corporation.
-This software is provided by Lancaster University by arrangement with the BBC.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
-THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
-*/
-
-#include "MicroBit.h"
-#include "MicroBitSamples.h"
-
-#ifdef MICROBIT_SAMPLE_SNAKE
-
-#define SNAKE_EMPTY 0
-#define SNAKE_UP    1
-#define SNAKE_LEFT  2
-#define SNAKE_RIGHT 3
-#define SNAKE_DOWN  4
-
-#define SNAKE_FRAME_DELAY   350
-#define GROWTH_SPEED        3
-
-struct Point
-{
-    int     x;
-    int     y;
-};
-
-MicroBit        uBit;
-Point           head;                 // Location of the head of our snake.
-Point           tail;                 // Location of the tail of our snake.
-Point           food;                 // Location of food.
-MicroBitImage   map(5,5);  
-
-void place_food()
-{
-    int r = uBit.random(24);
-    int x = 0; int y = 0;
-    
-    while (r > 0)
-    {
-        x = (x+1) % 5;
-        if (x == 0)
-            y = (y+1) % 5;
-            
-        if(map.getPixelValue(x,y) == SNAKE_EMPTY)
-            r--;
-    }
-    
-    food.x = x;
-    food.y = y;
-}
-
-void snake()
-{   
-    Point newHead;              // Calculated placement of new head position based on user input.    
-    int hdirection;             // Head's direction of travel
-    int tdirection;             // Tail's direction of travel
-    int snakeLength;            // number of segments in the snake.
-    int growing;                // boolean state indicating if we've just eaten some food.
-    int score;
-    
-    // Start in the middle of the screen.
-    tail.x = tail.y = 2;    
-    head.x = head.y = 2;
-    snakeLength = 1;
-    growing = 0;
-    score = 0;
-    map.clear();
-        
-    uBit.display.image.setPixelValue(head.x, head.y, 255);
-        
-    // Add some random food.    
-    place_food();
-        
-    while (1)
-    {    
-        // Flash the food is necessary;       
-        uBit.display.image.setPixelValue(food.x, food.y, uBit.systemTime() % 1000 < 500 ? 0 : 255);
-          
-        int dx = uBit.accelerometer.getX();
-        int dy = uBit.accelerometer.getY();
-        
-        newHead.x = head.x;
-        newHead.y = head.y;
-        
-        if (abs(dx) > abs(dy))
-        {
-            if(dx < 0)
-            {
-                hdirection = SNAKE_LEFT;
-                newHead.x = newHead.x == 0 ? 4 : newHead.x-1;
-            }
-            else
-            {
-                hdirection = SNAKE_RIGHT;
-                newHead.x = newHead.x == 4 ? 0 : newHead.x+1;
-            }            
-        }
-        else    
-        {
-            if(dy < 0)
-            {
-                hdirection = SNAKE_UP;
-                newHead.y = newHead.y == 0 ? 4 : newHead.y-1;
-            }
-            else
-            {
-                hdirection = SNAKE_DOWN;
-                newHead.y = newHead.y == 4 ? 0 : newHead.y+1;
-            }
-        }           
-        
-        int status = map.getPixelValue(newHead.x, newHead.y);
-        if (status == SNAKE_UP || status == SNAKE_DOWN || status == SNAKE_LEFT || status == SNAKE_RIGHT)
-        {
-            uBit.display.scroll("GAME OVER! SCORE: ");
-            uBit.display.scroll(score);
-            
-            return;            
-        }
-                                          
-        // move the head.       
-        map.setPixelValue(head.x, head.y, hdirection);
-        uBit.display.image.setPixelValue(newHead.x, newHead.y, 255);
-
-        if (growing == GROWTH_SPEED)
-        {
-            growing = 0;
-            snakeLength++;
-        }
-        else
-        {        
-            // move the tail.
-            tdirection = map.getPixelValue(tail.x,tail.y);     
-            map.setPixelValue(tail.x, tail.y, SNAKE_EMPTY);         
-            uBit.display.image.setPixelValue(tail.x, tail.y, 0);
-    
-            // Move our record of the tail's location.        
-            if (snakeLength == 1)
-            {
-                tail.x = newHead.x;
-                tail.y = newHead.y;
-            }
-            else
-            {
-                if (tdirection == SNAKE_UP)
-                    tail.y = tail.y == 0 ? 4 : tail.y-1;
-                
-                if (tdirection == SNAKE_DOWN)
-                    tail.y = tail.y == 4 ? 0 : tail.y+1;
-            
-                if (tdirection == SNAKE_LEFT)
-                    tail.x = tail.x == 0 ? 4 : tail.x-1;
-                
-                if (tdirection == SNAKE_RIGHT)
-                    tail.x = tail.x == 4 ? 0 : tail.x+1;
-            }
-        }
-
-        // Update our record of the head location and away we go!
-        head.x = newHead.x;
-        head.y = newHead.y;
-      
-        // if we've eaten some food, replace the food and grow ourselves!
-        if (head.x == food.x && head.y == food.y)
-        {
-            growing++;
-            score++;
-            place_food();
-        }
-      
-        uBit.sleep(SNAKE_FRAME_DELAY);   
-    }   
-}
-
-int main()
-{
-    // Initialise the micro:bit runtime.
-    uBit.init();
-
-    // Insert your code here!
-    uBit.display.scroll("SNAKE v1.0");
-
-    while(1)
-        snake();
-}
-
-#endif
\ No newline at end of file