A simple two button snake.
A Snake Game with animation, score and continuous play
Steps:
- Switch On.
- Snake animation plays.
- Game starts.
- Press buttons to move the snake left, right, up and down.
- Food appears as a dot on the display.
- Try eating the food by manoeuvring Snake to run over it.
- Snake grows as it eats food.
- As it grows it becomes hard to avoid snake biting itself.
- Game Over.
- Snake is flashed and then score is scrolled.
- Game restarts after replaying animation.
Controls:
- Left Button (A)
- If snake moving UP/DOWN moves snake to LEFT.
- If snake moving LEFT moves snake to DOWN.
- If snake moving RIGHT moves snake to UP.
- Right Button (B)
- If snake moving UP/DOWN moves snake to RIGHT.
- If snake moving LEFT moves snake to UP.
- If snake moving RIGHT moves snake to DOWN.
How it looks:
https://www.youtube.com/watch?v=unEs3NOvIKA
Binary to play with
/media/uploads/mazimkhan/microbit_snake_nrf51_microbit.hex
main.cpp@0:af1bb8b895c7, 2016-04-10 (annotated)
- Committer:
- mazimkhan
- Date:
- Sun Apr 10 19:50:16 2016 +0100
- Revision:
- 0:af1bb8b895c7
- Child:
- 2:38060465e019
A simple sanke game on microbit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mazimkhan | 0:af1bb8b895c7 | 1 | /* |
mazimkhan | 0:af1bb8b895c7 | 2 | The MIT License (MIT) |
mazimkhan | 0:af1bb8b895c7 | 3 | Copyright (c) 2016 British Broadcasting Corporation. |
mazimkhan | 0:af1bb8b895c7 | 4 | This software is provided by Lancaster University by arrangement with the BBC. |
mazimkhan | 0:af1bb8b895c7 | 5 | Permission is hereby granted, free of charge, to any person obtaining a |
mazimkhan | 0:af1bb8b895c7 | 6 | copy of this software and associated documentation files (the "Software"), |
mazimkhan | 0:af1bb8b895c7 | 7 | to deal in the Software without restriction, including without limitation |
mazimkhan | 0:af1bb8b895c7 | 8 | the rights to use, copy, modify, merge, publish, distribute, sublicense, |
mazimkhan | 0:af1bb8b895c7 | 9 | and/or sell copies of the Software, and to permit persons to whom the |
mazimkhan | 0:af1bb8b895c7 | 10 | Software is furnished to do so, subject to the following conditions: |
mazimkhan | 0:af1bb8b895c7 | 11 | The above copyright notice and this permission notice shall be included in |
mazimkhan | 0:af1bb8b895c7 | 12 | all copies or substantial portions of the Software. |
mazimkhan | 0:af1bb8b895c7 | 13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
mazimkhan | 0:af1bb8b895c7 | 14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
mazimkhan | 0:af1bb8b895c7 | 15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
mazimkhan | 0:af1bb8b895c7 | 16 | THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
mazimkhan | 0:af1bb8b895c7 | 17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
mazimkhan | 0:af1bb8b895c7 | 18 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
mazimkhan | 0:af1bb8b895c7 | 19 | DEALINGS IN THE SOFTWARE. |
mazimkhan | 0:af1bb8b895c7 | 20 | */ |
mazimkhan | 0:af1bb8b895c7 | 21 | |
mazimkhan | 0:af1bb8b895c7 | 22 | #include "MicroBit.h" |
mazimkhan | 0:af1bb8b895c7 | 23 | #include "DigitalOut.h" |
mazimkhan | 0:af1bb8b895c7 | 24 | |
mazimkhan | 0:af1bb8b895c7 | 25 | #define SNAKE_HEAD_PIXEL_BRIGHTNESS 25 |
mazimkhan | 0:af1bb8b895c7 | 26 | #define SNAKE_REST_PIXEL_BRIGHTNESS 15 |
mazimkhan | 0:af1bb8b895c7 | 27 | #define SNAKE_FOOD_PIXEL_BRIGHTNESS 255 |
mazimkhan | 0:af1bb8b895c7 | 28 | |
mazimkhan | 0:af1bb8b895c7 | 29 | template <class T> class Node{ |
mazimkhan | 0:af1bb8b895c7 | 30 | public: |
mazimkhan | 0:af1bb8b895c7 | 31 | Node(T data): d(data), next(NULL), prev(NULL) {} |
mazimkhan | 0:af1bb8b895c7 | 32 | |
mazimkhan | 0:af1bb8b895c7 | 33 | Node * getNext(){ |
mazimkhan | 0:af1bb8b895c7 | 34 | return next; |
mazimkhan | 0:af1bb8b895c7 | 35 | } |
mazimkhan | 0:af1bb8b895c7 | 36 | Node * getPrev(){ |
mazimkhan | 0:af1bb8b895c7 | 37 | return prev; |
mazimkhan | 0:af1bb8b895c7 | 38 | } |
mazimkhan | 0:af1bb8b895c7 | 39 | void detach () { |
mazimkhan | 0:af1bb8b895c7 | 40 | if (prev){ |
mazimkhan | 0:af1bb8b895c7 | 41 | prev->next = next; |
mazimkhan | 0:af1bb8b895c7 | 42 | } |
mazimkhan | 0:af1bb8b895c7 | 43 | if (next){ |
mazimkhan | 0:af1bb8b895c7 | 44 | next->prev = prev; |
mazimkhan | 0:af1bb8b895c7 | 45 | } |
mazimkhan | 0:af1bb8b895c7 | 46 | |
mazimkhan | 0:af1bb8b895c7 | 47 | next = NULL; |
mazimkhan | 0:af1bb8b895c7 | 48 | prev = NULL; |
mazimkhan | 0:af1bb8b895c7 | 49 | } |
mazimkhan | 0:af1bb8b895c7 | 50 | void append(Node * node) { |
mazimkhan | 0:af1bb8b895c7 | 51 | Node * n = this; |
mazimkhan | 0:af1bb8b895c7 | 52 | while (n->getNext()){ |
mazimkhan | 0:af1bb8b895c7 | 53 | n = n->getNext(); |
mazimkhan | 0:af1bb8b895c7 | 54 | } |
mazimkhan | 0:af1bb8b895c7 | 55 | n->next = node; |
mazimkhan | 0:af1bb8b895c7 | 56 | if (node){ |
mazimkhan | 0:af1bb8b895c7 | 57 | node->prev = n; |
mazimkhan | 0:af1bb8b895c7 | 58 | } |
mazimkhan | 0:af1bb8b895c7 | 59 | } |
mazimkhan | 0:af1bb8b895c7 | 60 | public: |
mazimkhan | 0:af1bb8b895c7 | 61 | T d; |
mazimkhan | 0:af1bb8b895c7 | 62 | private: |
mazimkhan | 0:af1bb8b895c7 | 63 | Node * next; |
mazimkhan | 0:af1bb8b895c7 | 64 | Node * prev; |
mazimkhan | 0:af1bb8b895c7 | 65 | }; |
mazimkhan | 0:af1bb8b895c7 | 66 | |
mazimkhan | 0:af1bb8b895c7 | 67 | template <class T> class List { |
mazimkhan | 0:af1bb8b895c7 | 68 | public: |
mazimkhan | 0:af1bb8b895c7 | 69 | List(): head(NULL), tail(NULL){ |
mazimkhan | 0:af1bb8b895c7 | 70 | } |
mazimkhan | 0:af1bb8b895c7 | 71 | void prepend(Node<T> * node){ |
mazimkhan | 0:af1bb8b895c7 | 72 | if (node){ |
mazimkhan | 0:af1bb8b895c7 | 73 | if (head == NULL && tail == NULL) { |
mazimkhan | 0:af1bb8b895c7 | 74 | head = tail = node; |
mazimkhan | 0:af1bb8b895c7 | 75 | } else { |
mazimkhan | 0:af1bb8b895c7 | 76 | node->append(head); |
mazimkhan | 0:af1bb8b895c7 | 77 | head = node; |
mazimkhan | 0:af1bb8b895c7 | 78 | } |
mazimkhan | 0:af1bb8b895c7 | 79 | } |
mazimkhan | 0:af1bb8b895c7 | 80 | } |
mazimkhan | 0:af1bb8b895c7 | 81 | Node<T> * removeTail(){ |
mazimkhan | 0:af1bb8b895c7 | 82 | Node<T> * node = tail; |
mazimkhan | 0:af1bb8b895c7 | 83 | if (tail) { |
mazimkhan | 0:af1bb8b895c7 | 84 | tail = tail->getPrev(); |
mazimkhan | 0:af1bb8b895c7 | 85 | node->detach(); |
mazimkhan | 0:af1bb8b895c7 | 86 | } |
mazimkhan | 0:af1bb8b895c7 | 87 | return node; |
mazimkhan | 0:af1bb8b895c7 | 88 | } |
mazimkhan | 0:af1bb8b895c7 | 89 | Node<T> * getHead(){ |
mazimkhan | 0:af1bb8b895c7 | 90 | return head; |
mazimkhan | 0:af1bb8b895c7 | 91 | } |
mazimkhan | 0:af1bb8b895c7 | 92 | Node<T> * getTail(){ |
mazimkhan | 0:af1bb8b895c7 | 93 | return tail; |
mazimkhan | 0:af1bb8b895c7 | 94 | } |
mazimkhan | 0:af1bb8b895c7 | 95 | void cleanup(){ |
mazimkhan | 0:af1bb8b895c7 | 96 | Node<T> * node = tail; |
mazimkhan | 0:af1bb8b895c7 | 97 | while(node){ |
mazimkhan | 0:af1bb8b895c7 | 98 | Node<T> * temp = node; |
mazimkhan | 0:af1bb8b895c7 | 99 | node = node->getPrev(); |
mazimkhan | 0:af1bb8b895c7 | 100 | |
mazimkhan | 0:af1bb8b895c7 | 101 | temp->detach(); |
mazimkhan | 0:af1bb8b895c7 | 102 | delete temp; |
mazimkhan | 0:af1bb8b895c7 | 103 | } |
mazimkhan | 0:af1bb8b895c7 | 104 | head = tail = NULL; |
mazimkhan | 0:af1bb8b895c7 | 105 | } |
mazimkhan | 0:af1bb8b895c7 | 106 | private: |
mazimkhan | 0:af1bb8b895c7 | 107 | Node<T> * head; |
mazimkhan | 0:af1bb8b895c7 | 108 | Node<T> * tail; |
mazimkhan | 0:af1bb8b895c7 | 109 | }; |
mazimkhan | 0:af1bb8b895c7 | 110 | |
mazimkhan | 0:af1bb8b895c7 | 111 | class Dimension |
mazimkhan | 0:af1bb8b895c7 | 112 | { |
mazimkhan | 0:af1bb8b895c7 | 113 | public: |
mazimkhan | 0:af1bb8b895c7 | 114 | Dimension (int start, int end) { |
mazimkhan | 0:af1bb8b895c7 | 115 | this->start = start; |
mazimkhan | 0:af1bb8b895c7 | 116 | this->end = end; |
mazimkhan | 0:af1bb8b895c7 | 117 | this->cur = start; |
mazimkhan | 0:af1bb8b895c7 | 118 | } |
mazimkhan | 0:af1bb8b895c7 | 119 | |
mazimkhan | 0:af1bb8b895c7 | 120 | Dimension (int start, int end, int cur) { |
mazimkhan | 0:af1bb8b895c7 | 121 | this->start = start; |
mazimkhan | 0:af1bb8b895c7 | 122 | this->end = end; |
mazimkhan | 0:af1bb8b895c7 | 123 | this->cur = cur; |
mazimkhan | 0:af1bb8b895c7 | 124 | } |
mazimkhan | 0:af1bb8b895c7 | 125 | |
mazimkhan | 0:af1bb8b895c7 | 126 | void operator ++(int){ |
mazimkhan | 0:af1bb8b895c7 | 127 | cur++; |
mazimkhan | 0:af1bb8b895c7 | 128 | if (cur > end){ |
mazimkhan | 0:af1bb8b895c7 | 129 | cur = start; |
mazimkhan | 0:af1bb8b895c7 | 130 | } |
mazimkhan | 0:af1bb8b895c7 | 131 | } |
mazimkhan | 0:af1bb8b895c7 | 132 | |
mazimkhan | 0:af1bb8b895c7 | 133 | void operator --(int){ |
mazimkhan | 0:af1bb8b895c7 | 134 | cur--; |
mazimkhan | 0:af1bb8b895c7 | 135 | if (cur < start){ |
mazimkhan | 0:af1bb8b895c7 | 136 | cur = end; |
mazimkhan | 0:af1bb8b895c7 | 137 | } |
mazimkhan | 0:af1bb8b895c7 | 138 | } |
mazimkhan | 0:af1bb8b895c7 | 139 | |
mazimkhan | 0:af1bb8b895c7 | 140 | int operator -(int i){ |
mazimkhan | 0:af1bb8b895c7 | 141 | int r = cur - i; |
mazimkhan | 0:af1bb8b895c7 | 142 | if (r < start){ |
mazimkhan | 0:af1bb8b895c7 | 143 | r = end; |
mazimkhan | 0:af1bb8b895c7 | 144 | } |
mazimkhan | 0:af1bb8b895c7 | 145 | return r; |
mazimkhan | 0:af1bb8b895c7 | 146 | } |
mazimkhan | 0:af1bb8b895c7 | 147 | |
mazimkhan | 0:af1bb8b895c7 | 148 | operator int(){ |
mazimkhan | 0:af1bb8b895c7 | 149 | return cur; |
mazimkhan | 0:af1bb8b895c7 | 150 | } |
mazimkhan | 0:af1bb8b895c7 | 151 | private: |
mazimkhan | 0:af1bb8b895c7 | 152 | int start; |
mazimkhan | 0:af1bb8b895c7 | 153 | int end; |
mazimkhan | 0:af1bb8b895c7 | 154 | int cur; |
mazimkhan | 0:af1bb8b895c7 | 155 | }; |
mazimkhan | 0:af1bb8b895c7 | 156 | |
mazimkhan | 0:af1bb8b895c7 | 157 | |
mazimkhan | 0:af1bb8b895c7 | 158 | class SnakeBone { |
mazimkhan | 0:af1bb8b895c7 | 159 | public: |
mazimkhan | 0:af1bb8b895c7 | 160 | SnakeBone(int startx, int endx, int curx, int starty, int endy, int cury): |
mazimkhan | 0:af1bb8b895c7 | 161 | x(startx, endx, curx), y(starty, endy, cury) |
mazimkhan | 0:af1bb8b895c7 | 162 | { |
mazimkhan | 0:af1bb8b895c7 | 163 | } |
mazimkhan | 0:af1bb8b895c7 | 164 | |
mazimkhan | 0:af1bb8b895c7 | 165 | Dimension getX(){ |
mazimkhan | 0:af1bb8b895c7 | 166 | return x; |
mazimkhan | 0:af1bb8b895c7 | 167 | } |
mazimkhan | 0:af1bb8b895c7 | 168 | |
mazimkhan | 0:af1bb8b895c7 | 169 | Dimension getY(){ |
mazimkhan | 0:af1bb8b895c7 | 170 | return y; |
mazimkhan | 0:af1bb8b895c7 | 171 | } |
mazimkhan | 0:af1bb8b895c7 | 172 | |
mazimkhan | 0:af1bb8b895c7 | 173 | private: |
mazimkhan | 0:af1bb8b895c7 | 174 | Dimension x; |
mazimkhan | 0:af1bb8b895c7 | 175 | Dimension y; |
mazimkhan | 0:af1bb8b895c7 | 176 | }; |
mazimkhan | 0:af1bb8b895c7 | 177 | |
mazimkhan | 0:af1bb8b895c7 | 178 | |
mazimkhan | 0:af1bb8b895c7 | 179 | class Snake { |
mazimkhan | 0:af1bb8b895c7 | 180 | public: |
mazimkhan | 0:af1bb8b895c7 | 181 | enum Direction { |
mazimkhan | 0:af1bb8b895c7 | 182 | UP, |
mazimkhan | 0:af1bb8b895c7 | 183 | DOWN, |
mazimkhan | 0:af1bb8b895c7 | 184 | LEFT, |
mazimkhan | 0:af1bb8b895c7 | 185 | RIGHT |
mazimkhan | 0:af1bb8b895c7 | 186 | }; |
mazimkhan | 0:af1bb8b895c7 | 187 | |
mazimkhan | 0:af1bb8b895c7 | 188 | Snake (): d(UP){ |
mazimkhan | 0:af1bb8b895c7 | 189 | bones.prepend(new Node<SnakeBone>(SnakeBone(0, 4, 2, 0, 4, 2))); |
mazimkhan | 0:af1bb8b895c7 | 190 | } |
mazimkhan | 0:af1bb8b895c7 | 191 | |
mazimkhan | 0:af1bb8b895c7 | 192 | Node<SnakeBone> * getHead(){ |
mazimkhan | 0:af1bb8b895c7 | 193 | return bones.getHead(); |
mazimkhan | 0:af1bb8b895c7 | 194 | } |
mazimkhan | 0:af1bb8b895c7 | 195 | Dimension getHeadX(){ |
mazimkhan | 0:af1bb8b895c7 | 196 | return _getNodeX(bones.getHead()); |
mazimkhan | 0:af1bb8b895c7 | 197 | } |
mazimkhan | 0:af1bb8b895c7 | 198 | Dimension getHeadY(){ |
mazimkhan | 0:af1bb8b895c7 | 199 | return _getNodeY(bones.getHead()); |
mazimkhan | 0:af1bb8b895c7 | 200 | } |
mazimkhan | 0:af1bb8b895c7 | 201 | Dimension getTailX(){ |
mazimkhan | 0:af1bb8b895c7 | 202 | return _getNodeX(bones.getTail()); |
mazimkhan | 0:af1bb8b895c7 | 203 | } |
mazimkhan | 0:af1bb8b895c7 | 204 | Dimension getTailY(){ |
mazimkhan | 0:af1bb8b895c7 | 205 | return _getNodeY(bones.getTail()); |
mazimkhan | 0:af1bb8b895c7 | 206 | } |
mazimkhan | 0:af1bb8b895c7 | 207 | |
mazimkhan | 0:af1bb8b895c7 | 208 | void grow(){ |
mazimkhan | 0:af1bb8b895c7 | 209 | // Find next position to place new head |
mazimkhan | 0:af1bb8b895c7 | 210 | Dimension nextX = getHeadX(); |
mazimkhan | 0:af1bb8b895c7 | 211 | Dimension nextY = getHeadY(); |
mazimkhan | 0:af1bb8b895c7 | 212 | |
mazimkhan | 0:af1bb8b895c7 | 213 | switch (d){ |
mazimkhan | 0:af1bb8b895c7 | 214 | case UP: { |
mazimkhan | 0:af1bb8b895c7 | 215 | nextY--; |
mazimkhan | 0:af1bb8b895c7 | 216 | } |
mazimkhan | 0:af1bb8b895c7 | 217 | break; |
mazimkhan | 0:af1bb8b895c7 | 218 | case DOWN: { |
mazimkhan | 0:af1bb8b895c7 | 219 | nextY++; |
mazimkhan | 0:af1bb8b895c7 | 220 | } |
mazimkhan | 0:af1bb8b895c7 | 221 | break; |
mazimkhan | 0:af1bb8b895c7 | 222 | case LEFT: { |
mazimkhan | 0:af1bb8b895c7 | 223 | nextX--; |
mazimkhan | 0:af1bb8b895c7 | 224 | } |
mazimkhan | 0:af1bb8b895c7 | 225 | break; |
mazimkhan | 0:af1bb8b895c7 | 226 | case RIGHT: { |
mazimkhan | 0:af1bb8b895c7 | 227 | nextX++; |
mazimkhan | 0:af1bb8b895c7 | 228 | } |
mazimkhan | 0:af1bb8b895c7 | 229 | break; |
mazimkhan | 0:af1bb8b895c7 | 230 | } |
mazimkhan | 0:af1bb8b895c7 | 231 | |
mazimkhan | 0:af1bb8b895c7 | 232 | // New bone at head |
mazimkhan | 0:af1bb8b895c7 | 233 | bones.prepend(new Node<SnakeBone>(SnakeBone(0, 4, nextX, 0, 4, nextY))); |
mazimkhan | 0:af1bb8b895c7 | 234 | } |
mazimkhan | 0:af1bb8b895c7 | 235 | |
mazimkhan | 0:af1bb8b895c7 | 236 | void reduce(){ |
mazimkhan | 0:af1bb8b895c7 | 237 | Node<SnakeBone> * tail = bones.removeTail(); |
mazimkhan | 0:af1bb8b895c7 | 238 | printf ("\r\nNew tail x = %d y = %d\r\n", bones.getTail()->d.getX(), bones.getTail()->d.getY()); |
mazimkhan | 0:af1bb8b895c7 | 239 | if (tail){ |
mazimkhan | 0:af1bb8b895c7 | 240 | delete tail; |
mazimkhan | 0:af1bb8b895c7 | 241 | } |
mazimkhan | 0:af1bb8b895c7 | 242 | } |
mazimkhan | 0:af1bb8b895c7 | 243 | |
mazimkhan | 0:af1bb8b895c7 | 244 | void left(){ |
mazimkhan | 0:af1bb8b895c7 | 245 | switch (d){ |
mazimkhan | 0:af1bb8b895c7 | 246 | case UP: |
mazimkhan | 0:af1bb8b895c7 | 247 | case DOWN: { |
mazimkhan | 0:af1bb8b895c7 | 248 | d = LEFT; |
mazimkhan | 0:af1bb8b895c7 | 249 | } |
mazimkhan | 0:af1bb8b895c7 | 250 | break; |
mazimkhan | 0:af1bb8b895c7 | 251 | case LEFT: { |
mazimkhan | 0:af1bb8b895c7 | 252 | d = DOWN; |
mazimkhan | 0:af1bb8b895c7 | 253 | } |
mazimkhan | 0:af1bb8b895c7 | 254 | break; |
mazimkhan | 0:af1bb8b895c7 | 255 | case RIGHT: { |
mazimkhan | 0:af1bb8b895c7 | 256 | d = UP; |
mazimkhan | 0:af1bb8b895c7 | 257 | } |
mazimkhan | 0:af1bb8b895c7 | 258 | break; |
mazimkhan | 0:af1bb8b895c7 | 259 | } |
mazimkhan | 0:af1bb8b895c7 | 260 | } |
mazimkhan | 0:af1bb8b895c7 | 261 | |
mazimkhan | 0:af1bb8b895c7 | 262 | void right(){ |
mazimkhan | 0:af1bb8b895c7 | 263 | switch (d){ |
mazimkhan | 0:af1bb8b895c7 | 264 | case UP: |
mazimkhan | 0:af1bb8b895c7 | 265 | case DOWN: { |
mazimkhan | 0:af1bb8b895c7 | 266 | d = RIGHT; |
mazimkhan | 0:af1bb8b895c7 | 267 | } |
mazimkhan | 0:af1bb8b895c7 | 268 | break; |
mazimkhan | 0:af1bb8b895c7 | 269 | case LEFT: { |
mazimkhan | 0:af1bb8b895c7 | 270 | d = UP; |
mazimkhan | 0:af1bb8b895c7 | 271 | } |
mazimkhan | 0:af1bb8b895c7 | 272 | break; |
mazimkhan | 0:af1bb8b895c7 | 273 | case RIGHT: { |
mazimkhan | 0:af1bb8b895c7 | 274 | d = DOWN; |
mazimkhan | 0:af1bb8b895c7 | 275 | } |
mazimkhan | 0:af1bb8b895c7 | 276 | break; |
mazimkhan | 0:af1bb8b895c7 | 277 | } |
mazimkhan | 0:af1bb8b895c7 | 278 | } |
mazimkhan | 0:af1bb8b895c7 | 279 | |
mazimkhan | 0:af1bb8b895c7 | 280 | void reset(){ |
mazimkhan | 0:af1bb8b895c7 | 281 | bones.cleanup(); |
mazimkhan | 0:af1bb8b895c7 | 282 | bones.prepend(new Node<SnakeBone>(SnakeBone(0, 4, 2, 0, 4, 2))); |
mazimkhan | 0:af1bb8b895c7 | 283 | d = UP; |
mazimkhan | 0:af1bb8b895c7 | 284 | } |
mazimkhan | 0:af1bb8b895c7 | 285 | |
mazimkhan | 0:af1bb8b895c7 | 286 | Direction getDirection(){ |
mazimkhan | 0:af1bb8b895c7 | 287 | return d; |
mazimkhan | 0:af1bb8b895c7 | 288 | } |
mazimkhan | 0:af1bb8b895c7 | 289 | |
mazimkhan | 0:af1bb8b895c7 | 290 | private: |
mazimkhan | 0:af1bb8b895c7 | 291 | Dimension _getNodeX(Node<SnakeBone> * node){ |
mazimkhan | 0:af1bb8b895c7 | 292 | if (node){ |
mazimkhan | 0:af1bb8b895c7 | 293 | return node->d.getX(); |
mazimkhan | 0:af1bb8b895c7 | 294 | } |
mazimkhan | 0:af1bb8b895c7 | 295 | return Dimension(-1, -1, -1); |
mazimkhan | 0:af1bb8b895c7 | 296 | } |
mazimkhan | 0:af1bb8b895c7 | 297 | |
mazimkhan | 0:af1bb8b895c7 | 298 | Dimension _getNodeY(Node<SnakeBone> * node){ |
mazimkhan | 0:af1bb8b895c7 | 299 | if (node){ |
mazimkhan | 0:af1bb8b895c7 | 300 | return node->d.getY(); |
mazimkhan | 0:af1bb8b895c7 | 301 | } |
mazimkhan | 0:af1bb8b895c7 | 302 | return Dimension(-1, -1, -1); |
mazimkhan | 0:af1bb8b895c7 | 303 | } |
mazimkhan | 0:af1bb8b895c7 | 304 | |
mazimkhan | 0:af1bb8b895c7 | 305 | List<SnakeBone> bones; |
mazimkhan | 0:af1bb8b895c7 | 306 | Direction d; |
mazimkhan | 0:af1bb8b895c7 | 307 | }; |
mazimkhan | 0:af1bb8b895c7 | 308 | |
mazimkhan | 0:af1bb8b895c7 | 309 | class Game { |
mazimkhan | 0:af1bb8b895c7 | 310 | public: |
mazimkhan | 0:af1bb8b895c7 | 311 | Game(MicroBit & ubit): uBit(ubit), foodx(-1), foody(-1), image(5,5), |
mazimkhan | 0:af1bb8b895c7 | 312 | buttonPressed(false) { |
mazimkhan | 0:af1bb8b895c7 | 313 | uBit.display.setDisplayMode(DISPLAY_MODE_GREYSCALE); |
mazimkhan | 0:af1bb8b895c7 | 314 | uBit.display.print(image); |
mazimkhan | 0:af1bb8b895c7 | 315 | } |
mazimkhan | 0:af1bb8b895c7 | 316 | |
mazimkhan | 0:af1bb8b895c7 | 317 | void left(){ |
mazimkhan | 0:af1bb8b895c7 | 318 | if (!buttonPressed){ |
mazimkhan | 0:af1bb8b895c7 | 319 | buttonPressed = true; |
mazimkhan | 0:af1bb8b895c7 | 320 | snake.left(); |
mazimkhan | 0:af1bb8b895c7 | 321 | } |
mazimkhan | 0:af1bb8b895c7 | 322 | } |
mazimkhan | 0:af1bb8b895c7 | 323 | |
mazimkhan | 0:af1bb8b895c7 | 324 | void right(){ |
mazimkhan | 0:af1bb8b895c7 | 325 | if (!buttonPressed){ |
mazimkhan | 0:af1bb8b895c7 | 326 | buttonPressed = true; |
mazimkhan | 0:af1bb8b895c7 | 327 | snake.right(); |
mazimkhan | 0:af1bb8b895c7 | 328 | } |
mazimkhan | 0:af1bb8b895c7 | 329 | } |
mazimkhan | 0:af1bb8b895c7 | 330 | |
mazimkhan | 0:af1bb8b895c7 | 331 | bool move(){ |
mazimkhan | 0:af1bb8b895c7 | 332 | // Display food |
mazimkhan | 0:af1bb8b895c7 | 333 | if (foodx != -1 && foody != -1){ |
mazimkhan | 0:af1bb8b895c7 | 334 | image.setPixelValue(foodx, foody, 255); |
mazimkhan | 0:af1bb8b895c7 | 335 | uBit.display.print(image); |
mazimkhan | 0:af1bb8b895c7 | 336 | } |
mazimkhan | 0:af1bb8b895c7 | 337 | |
mazimkhan | 0:af1bb8b895c7 | 338 | snake.grow(); |
mazimkhan | 0:af1bb8b895c7 | 339 | |
mazimkhan | 0:af1bb8b895c7 | 340 | Dimension nextX = snake.getHeadX(); |
mazimkhan | 0:af1bb8b895c7 | 341 | Dimension nextY = snake.getHeadY(); |
mazimkhan | 0:af1bb8b895c7 | 342 | printf ("\r\nnextx = %d nexty = %d\r\n", (int)nextX, (int)nextY); |
mazimkhan | 0:af1bb8b895c7 | 343 | |
mazimkhan | 0:af1bb8b895c7 | 344 | // Check snake bite |
mazimkhan | 0:af1bb8b895c7 | 345 | if (image.getPixelValue(nextX, nextY) == 15){ |
mazimkhan | 0:af1bb8b895c7 | 346 | // Game Over |
mazimkhan | 0:af1bb8b895c7 | 347 | return false; |
mazimkhan | 0:af1bb8b895c7 | 348 | } |
mazimkhan | 0:af1bb8b895c7 | 349 | |
mazimkhan | 0:af1bb8b895c7 | 350 | // check if we grew by eating. |
mazimkhan | 0:af1bb8b895c7 | 351 | if (nextX == foodx && nextY == foody){ |
mazimkhan | 0:af1bb8b895c7 | 352 | // food gone |
mazimkhan | 0:af1bb8b895c7 | 353 | foodx = -1; |
mazimkhan | 0:af1bb8b895c7 | 354 | foody = -1; |
mazimkhan | 0:af1bb8b895c7 | 355 | |
mazimkhan | 0:af1bb8b895c7 | 356 | // Since we have grown to the head. no need to delete tail. |
mazimkhan | 0:af1bb8b895c7 | 357 | } else { |
mazimkhan | 0:af1bb8b895c7 | 358 | // Switch off end. |
mazimkhan | 0:af1bb8b895c7 | 359 | int endx = snake.getTailX(); |
mazimkhan | 0:af1bb8b895c7 | 360 | int endy = snake.getTailY(); |
mazimkhan | 0:af1bb8b895c7 | 361 | printf ("\r\nendx = %d endy = %d\r\n", (int)endx, (int)endy); |
mazimkhan | 0:af1bb8b895c7 | 362 | if (endx != -1 && endy != -1){ |
mazimkhan | 0:af1bb8b895c7 | 363 | image.setPixelValue(endx, endy, 0); |
mazimkhan | 0:af1bb8b895c7 | 364 | } |
mazimkhan | 0:af1bb8b895c7 | 365 | snake.reduce(); |
mazimkhan | 0:af1bb8b895c7 | 366 | } |
mazimkhan | 0:af1bb8b895c7 | 367 | |
mazimkhan | 0:af1bb8b895c7 | 368 | // Turn On head. |
mazimkhan | 0:af1bb8b895c7 | 369 | image.setPixelValue(nextX, nextY, 15); |
mazimkhan | 0:af1bb8b895c7 | 370 | uBit.display.print(image); |
mazimkhan | 0:af1bb8b895c7 | 371 | buttonPressed = false; |
mazimkhan | 0:af1bb8b895c7 | 372 | return true; |
mazimkhan | 0:af1bb8b895c7 | 373 | } |
mazimkhan | 0:af1bb8b895c7 | 374 | |
mazimkhan | 0:af1bb8b895c7 | 375 | bool isGoodFood(int x, int y){ |
mazimkhan | 0:af1bb8b895c7 | 376 | bool ret = image.getPixelValue(x, y) == 0; |
mazimkhan | 0:af1bb8b895c7 | 377 | |
mazimkhan | 0:af1bb8b895c7 | 378 | // also don't accept food in the direction of movement |
mazimkhan | 0:af1bb8b895c7 | 379 | if (ret){ |
mazimkhan | 0:af1bb8b895c7 | 380 | switch(snake.getDirection()){ |
mazimkhan | 0:af1bb8b895c7 | 381 | case Snake::UP: |
mazimkhan | 0:af1bb8b895c7 | 382 | case Snake::DOWN: { |
mazimkhan | 0:af1bb8b895c7 | 383 | ret = x != snake.getHeadX(); |
mazimkhan | 0:af1bb8b895c7 | 384 | } |
mazimkhan | 0:af1bb8b895c7 | 385 | break; |
mazimkhan | 0:af1bb8b895c7 | 386 | case Snake::LEFT: |
mazimkhan | 0:af1bb8b895c7 | 387 | case Snake::RIGHT: { |
mazimkhan | 0:af1bb8b895c7 | 388 | ret = y != snake.getHeadY(); |
mazimkhan | 0:af1bb8b895c7 | 389 | } |
mazimkhan | 0:af1bb8b895c7 | 390 | break; |
mazimkhan | 0:af1bb8b895c7 | 391 | } |
mazimkhan | 0:af1bb8b895c7 | 392 | } |
mazimkhan | 0:af1bb8b895c7 | 393 | return ret; |
mazimkhan | 0:af1bb8b895c7 | 394 | } |
mazimkhan | 0:af1bb8b895c7 | 395 | |
mazimkhan | 0:af1bb8b895c7 | 396 | void play(){ |
mazimkhan | 0:af1bb8b895c7 | 397 | while (true) { |
mazimkhan | 0:af1bb8b895c7 | 398 | if (!move()){ |
mazimkhan | 0:af1bb8b895c7 | 399 | showGameOver(); |
mazimkhan | 0:af1bb8b895c7 | 400 | break; |
mazimkhan | 0:af1bb8b895c7 | 401 | } |
mazimkhan | 0:af1bb8b895c7 | 402 | |
mazimkhan | 0:af1bb8b895c7 | 403 | // Put food |
mazimkhan | 0:af1bb8b895c7 | 404 | if (foodx == -1 && foody == -1){ |
mazimkhan | 0:af1bb8b895c7 | 405 | while (true){ |
mazimkhan | 0:af1bb8b895c7 | 406 | int x = uBit.random(4); |
mazimkhan | 0:af1bb8b895c7 | 407 | int y = uBit.random(4); |
mazimkhan | 0:af1bb8b895c7 | 408 | |
mazimkhan | 0:af1bb8b895c7 | 409 | if (isGoodFood(x, y)){ |
mazimkhan | 0:af1bb8b895c7 | 410 | foodx = x; |
mazimkhan | 0:af1bb8b895c7 | 411 | foody = y; |
mazimkhan | 0:af1bb8b895c7 | 412 | break; |
mazimkhan | 0:af1bb8b895c7 | 413 | } |
mazimkhan | 0:af1bb8b895c7 | 414 | } |
mazimkhan | 0:af1bb8b895c7 | 415 | } |
mazimkhan | 0:af1bb8b895c7 | 416 | uBit.sleep(500); |
mazimkhan | 0:af1bb8b895c7 | 417 | } |
mazimkhan | 0:af1bb8b895c7 | 418 | } |
mazimkhan | 0:af1bb8b895c7 | 419 | void showGameOver(){ |
mazimkhan | 0:af1bb8b895c7 | 420 | // switch off food |
mazimkhan | 0:af1bb8b895c7 | 421 | if (foodx != -1 && foody != -1){ |
mazimkhan | 0:af1bb8b895c7 | 422 | image.setPixelValue(foodx, foody, 0); |
mazimkhan | 0:af1bb8b895c7 | 423 | uBit.display.print(image); |
mazimkhan | 0:af1bb8b895c7 | 424 | } |
mazimkhan | 0:af1bb8b895c7 | 425 | |
mazimkhan | 0:af1bb8b895c7 | 426 | // change brightness to 255 as pixels with custom brightness |
mazimkhan | 0:af1bb8b895c7 | 427 | // are not affected by display.setBrightness(). Possible Bug!!! |
mazimkhan | 0:af1bb8b895c7 | 428 | Node<SnakeBone> * bone = snake.getHead(); |
mazimkhan | 0:af1bb8b895c7 | 429 | while (bone){ |
mazimkhan | 0:af1bb8b895c7 | 430 | image.setPixelValue(bone->d.getX(), bone->d.getY(), 255); |
mazimkhan | 0:af1bb8b895c7 | 431 | bone = bone->getNext(); |
mazimkhan | 0:af1bb8b895c7 | 432 | } |
mazimkhan | 0:af1bb8b895c7 | 433 | // Flash snake |
mazimkhan | 0:af1bb8b895c7 | 434 | uBit.display.print(image); |
mazimkhan | 0:af1bb8b895c7 | 435 | bool toggle = false; |
mazimkhan | 0:af1bb8b895c7 | 436 | for (int i = 0; i < 10; i++, toggle = !toggle){ |
mazimkhan | 0:af1bb8b895c7 | 437 | if (toggle) |
mazimkhan | 0:af1bb8b895c7 | 438 | uBit.display.setBrightness(255); |
mazimkhan | 0:af1bb8b895c7 | 439 | else |
mazimkhan | 0:af1bb8b895c7 | 440 | uBit.display.setBrightness(15); |
mazimkhan | 0:af1bb8b895c7 | 441 | uBit.sleep(500); |
mazimkhan | 0:af1bb8b895c7 | 442 | } |
mazimkhan | 0:af1bb8b895c7 | 443 | } |
mazimkhan | 0:af1bb8b895c7 | 444 | |
mazimkhan | 0:af1bb8b895c7 | 445 | void reset(){ |
mazimkhan | 0:af1bb8b895c7 | 446 | // cleanup snake and state |
mazimkhan | 0:af1bb8b895c7 | 447 | snake.reset(); |
mazimkhan | 0:af1bb8b895c7 | 448 | |
mazimkhan | 0:af1bb8b895c7 | 449 | foodx = -1; |
mazimkhan | 0:af1bb8b895c7 | 450 | foody = -1; |
mazimkhan | 0:af1bb8b895c7 | 451 | image = MicroBitImage(5, 5); |
mazimkhan | 0:af1bb8b895c7 | 452 | uBit.display.setDisplayMode(DISPLAY_MODE_GREYSCALE); |
mazimkhan | 0:af1bb8b895c7 | 453 | uBit.display.print(image); |
mazimkhan | 0:af1bb8b895c7 | 454 | } |
mazimkhan | 0:af1bb8b895c7 | 455 | |
mazimkhan | 0:af1bb8b895c7 | 456 | |
mazimkhan | 0:af1bb8b895c7 | 457 | private: |
mazimkhan | 0:af1bb8b895c7 | 458 | MicroBit & uBit; |
mazimkhan | 0:af1bb8b895c7 | 459 | int foodx; |
mazimkhan | 0:af1bb8b895c7 | 460 | int foody; |
mazimkhan | 0:af1bb8b895c7 | 461 | Snake snake; |
mazimkhan | 0:af1bb8b895c7 | 462 | MicroBitImage image; |
mazimkhan | 0:af1bb8b895c7 | 463 | |
mazimkhan | 0:af1bb8b895c7 | 464 | // Sync button press and movement. Don't let quick button presses |
mazimkhan | 0:af1bb8b895c7 | 465 | // change snake direction twice/thrice/... before moving. As a |
mazimkhan | 0:af1bb8b895c7 | 466 | // double press can reverse the snake on its own and Game Over!!! |
mazimkhan | 0:af1bb8b895c7 | 467 | bool buttonPressed; |
mazimkhan | 0:af1bb8b895c7 | 468 | }; |
mazimkhan | 0:af1bb8b895c7 | 469 | |
mazimkhan | 0:af1bb8b895c7 | 470 | |
mazimkhan | 0:af1bb8b895c7 | 471 | MicroBit uBit; |
mazimkhan | 0:af1bb8b895c7 | 472 | Game game(uBit); |
mazimkhan | 0:af1bb8b895c7 | 473 | |
mazimkhan | 0:af1bb8b895c7 | 474 | |
mazimkhan | 0:af1bb8b895c7 | 475 | void onButtonA(MicroBitEvent){ |
mazimkhan | 0:af1bb8b895c7 | 476 | game.left(); |
mazimkhan | 0:af1bb8b895c7 | 477 | } |
mazimkhan | 0:af1bb8b895c7 | 478 | |
mazimkhan | 0:af1bb8b895c7 | 479 | void onButtonB(MicroBitEvent){ |
mazimkhan | 0:af1bb8b895c7 | 480 | game.right(); |
mazimkhan | 0:af1bb8b895c7 | 481 | } |
mazimkhan | 0:af1bb8b895c7 | 482 | |
mazimkhan | 0:af1bb8b895c7 | 483 | int main() |
mazimkhan | 0:af1bb8b895c7 | 484 | { |
mazimkhan | 0:af1bb8b895c7 | 485 | // Initialise the micro:bit runtime. |
mazimkhan | 0:af1bb8b895c7 | 486 | uBit.init(); |
mazimkhan | 0:af1bb8b895c7 | 487 | |
mazimkhan | 0:af1bb8b895c7 | 488 | uBit.messageBus.listen(MICROBIT_ID_BUTTON_A, MICROBIT_BUTTON_EVT_CLICK, onButtonA); |
mazimkhan | 0:af1bb8b895c7 | 489 | uBit.messageBus.listen(MICROBIT_ID_BUTTON_B, MICROBIT_BUTTON_EVT_CLICK, onButtonB); |
mazimkhan | 0:af1bb8b895c7 | 490 | |
mazimkhan | 0:af1bb8b895c7 | 491 | // Continous play |
mazimkhan | 0:af1bb8b895c7 | 492 | while (true) |
mazimkhan | 0:af1bb8b895c7 | 493 | { |
mazimkhan | 0:af1bb8b895c7 | 494 | game.play(); |
mazimkhan | 0:af1bb8b895c7 | 495 | |
mazimkhan | 0:af1bb8b895c7 | 496 | uBit.display.print(MicroBitImage(5,5)); |
mazimkhan | 0:af1bb8b895c7 | 497 | uBit.display.setBrightness(255); |
mazimkhan | 0:af1bb8b895c7 | 498 | uBit.display.scroll("URBITTEN"); // don't mind spaces in a scrolling display. |
mazimkhan | 0:af1bb8b895c7 | 499 | |
mazimkhan | 0:af1bb8b895c7 | 500 | game.reset(); |
mazimkhan | 0:af1bb8b895c7 | 501 | } |
mazimkhan | 0:af1bb8b895c7 | 502 | } |