Coby Lu / Mbed 2 deprecated snake

The classic game of snake. Control using a joystick and displayed on a VGA screen

Dependencies:   4DGL direction draw game list mbed

main.cpp@1:aa27e5ef379b, 2012-10-11 (annotated)

Committer:
lucoby
Date:
Thu Oct 11 20:24:26 2012 +0000
Revision:
1:aa27e5ef379b
Parent:
0:1ca938e58b91 
updated drawing and game engine

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lucoby 0:1ca938e58b91 1 #include "mbed.h"
lucoby 0:1ca938e58b91 2 #include "direction.h"
lucoby 0:1ca938e58b91 3 #include "list.h"
lucoby 0:1ca938e58b91 4 #include "draw.h"
lucoby 0:1ca938e58b91 5 #include "game.h"
lucoby 0:1ca938e58b91 6
lucoby 0:1ca938e58b91 7 DigitalOut myled(LED1);
lucoby 0:1ca938e58b91 8 DigitalOut myled2(LED2);
lucoby 0:1ca938e58b91 9 DigitalIn pb(p17);
lucoby 0:1ca938e58b91 10
lucoby 0:1ca938e58b91 11 int main() {
lucoby 0:1ca938e58b91 12 pb.mode(PullUp);
lucoby 0:1ca938e58b91 13 myled2 = 1;
lucoby 0:1ca938e58b91 14 SDirection direction, newDirection;
lucoby 0:1ca938e58b91 15 List snake = {NULL,NULL};
lucoby 0:1ca938e58b91 16 Apple apple;
lucoby 0:1ca938e58b91 17 int points;
lucoby 0:1ca938e58b91 18 int tempRow, tempCol;
lucoby 0:1ca938e58b91 19 int draw_yes = 0;
lucoby 1:aa27e5ef379b 20 int draw_y2 = 0;
lucoby 1:aa27e5ef379b 21 int spx = 0;
lucoby 1:aa27e5ef379b 22 int spy = 0;
lucoby 0:1ca938e58b91 23 int i;
lucoby 1:aa27e5ef379b 24 State game = splash;
lucoby 0:1ca938e58b91 25 drawSetup();
lucoby 0:1ca938e58b91 26
lucoby 0:1ca938e58b91 27 while(1) {
lucoby 0:1ca938e58b91 28 wait(0.016666667);
lucoby 0:1ca938e58b91 29 myled = !myled;
lucoby 0:1ca938e58b91 30 switch(game) {
lucoby 1:aa27e5ef379b 31 case splash:
lucoby 1:aa27e5ef379b 32 draw_y2++;
lucoby 1:aa27e5ef379b 33 if(draw_y2 == 19) {
lucoby 1:aa27e5ef379b 34 drawBlank(spy,spx);
lucoby 1:aa27e5ef379b 35 spx = rand() % COL;
lucoby 1:aa27e5ef379b 36 spy = rand() % ROW;
lucoby 1:aa27e5ef379b 37 drawApple(spy,spx);
lucoby 1:aa27e5ef379b 38 draw_y2 = 0;
lucoby 1:aa27e5ef379b 39 }
lucoby 1:aa27e5ef379b 40 if((direction = getDirection(none)) != none) game = start;
lucoby 1:aa27e5ef379b 41 break;
lucoby 1:aa27e5ef379b 42 case start:
lucoby 0:1ca938e58b91 43 if((direction = getDirection(none)) != none) {
lucoby 0:1ca938e58b91 44 deleteList(&snake);
lucoby 0:1ca938e58b91 45 clearscr();
lucoby 1:aa27e5ef379b 46 for(i = -1; i < COL + 2; i++){
lucoby 1:aa27e5ef379b 47 drawPixel(-1,i,0xFFFFFF);
lucoby 1:aa27e5ef379b 48 }
lucoby 1:aa27e5ef379b 49 for(i = 0; i < ROW + 2; i++) {
lucoby 0:1ca938e58b91 50 drawPixel(i,COL+1,0xFFFFFF);
lucoby 0:1ca938e58b91 51 }
lucoby 1:aa27e5ef379b 52 for(i = COL + 1; i > -2; i--){
lucoby 0:1ca938e58b91 53 drawPixel(ROW+1,i,0xFFFFFF);
lucoby 0:1ca938e58b91 54 }
lucoby 1:aa27e5ef379b 55 for(i = ROW + 1; i > -2; i--) {
lucoby 1:aa27e5ef379b 56 drawPixel(i,-1,0xFFFFFF);
lucoby 1:aa27e5ef379b 57 }
lucoby 0:1ca938e58b91 58 addToHead(&snake, 5, 5);
lucoby 0:1ca938e58b91 59 addToHead(&snake, 5, 6);
lucoby 0:1ca938e58b91 60 addToHead(&snake, 5, 7);
lucoby 0:1ca938e58b91 61 apple.row = rand() % (ROW - 1) + 1;
lucoby 0:1ca938e58b91 62 apple.col = rand() % (COL - 3) + 3;
lucoby 0:1ca938e58b91 63 points = 0;
lucoby 0:1ca938e58b91 64 game = run;
lucoby 0:1ca938e58b91 65 }
lucoby 0:1ca938e58b91 66 break;
lucoby 0:1ca938e58b91 67 case run:
lucoby 0:1ca938e58b91 68 // control
lucoby 0:1ca938e58b91 69 newDirection = getDirection(newDirection);
lucoby 0:1ca938e58b91 70 draw_yes++;
lucoby 0:1ca938e58b91 71 if(draw_yes == 14) game = draw;
lucoby 0:1ca938e58b91 72 break;
lucoby 0:1ca938e58b91 73
lucoby 0:1ca938e58b91 74 case draw:
lucoby 0:1ca938e58b91 75 //model
lucoby 0:1ca938e58b91 76 draw_yes = 0;
lucoby 0:1ca938e58b91 77 game = run;
lucoby 0:1ca938e58b91 78 //left
lucoby 0:1ca938e58b91 79 if(newDirection == left && direction != right || newDirection == none && direction == left || direction == left && newDirection == right) {
lucoby 0:1ca938e58b91 80 direction = left;
lucoby 0:1ca938e58b91 81 //pc.printf("left\n\r");
lucoby 0:1ca938e58b91 82 addToHead(&snake, snake.head->row, snake.head->col - 1);
lucoby 0:1ca938e58b91 83 if (snake.head->row == apple.row && snake.head->col == apple.col) {
lucoby 0:1ca938e58b91 84 tempRow = -1;
lucoby 0:1ca938e58b91 85 tempCol = -1;
lucoby 0:1ca938e58b91 86 score(&apple, &points);
lucoby 0:1ca938e58b91 87 } else {
lucoby 0:1ca938e58b91 88 tempRow = snake.tail->row;
lucoby 0:1ca938e58b91 89 tempCol = snake.tail->col;
lucoby 0:1ca938e58b91 90 removeFromTail(&snake);
lucoby 0:1ca938e58b91 91 }
lucoby 0:1ca938e58b91 92 //right
lucoby 0:1ca938e58b91 93 } else if (newDirection == right && direction != left || newDirection == none && direction == right || direction == right && newDirection == left) {
lucoby 0:1ca938e58b91 94 addToHead(&snake, snake.head->row, snake.head->col + 1);
lucoby 0:1ca938e58b91 95 direction = right;
lucoby 0:1ca938e58b91 96 //pc.printf("right\n\r");
lucoby 0:1ca938e58b91 97 if (snake.head->row == apple.row && snake.head->col == apple.col) {
lucoby 0:1ca938e58b91 98 tempRow = -1;
lucoby 0:1ca938e58b91 99 tempCol = -1;
lucoby 0:1ca938e58b91 100 score(&apple, &points);
lucoby 0:1ca938e58b91 101 } else {
lucoby 0:1ca938e58b91 102 tempRow = snake.tail->row;
lucoby 0:1ca938e58b91 103 tempCol = snake.tail->col;
lucoby 0:1ca938e58b91 104 removeFromTail(&snake);
lucoby 0:1ca938e58b91 105 }
lucoby 0:1ca938e58b91 106 //up
lucoby 0:1ca938e58b91 107 } else if (newDirection == up && direction != down || newDirection == none && direction == up|| direction == up && newDirection == down) {
lucoby 0:1ca938e58b91 108 addToHead(&snake, snake.head->row - 1, snake.head->col);
lucoby 0:1ca938e58b91 109 direction = up;
lucoby 0:1ca938e58b91 110 //pc.printf("up\n\r");
lucoby 0:1ca938e58b91 111 if (snake.head->row == apple.row && snake.head->col == apple.col) {
lucoby 0:1ca938e58b91 112 tempRow = -1;
lucoby 0:1ca938e58b91 113 tempCol = -1;
lucoby 0:1ca938e58b91 114 score(&apple, &points);
lucoby 0:1ca938e58b91 115 } else {
lucoby 0:1ca938e58b91 116 tempRow = snake.tail->row;
lucoby 0:1ca938e58b91 117 tempCol = snake.tail->col;
lucoby 0:1ca938e58b91 118 removeFromTail(&snake);
lucoby 0:1ca938e58b91 119 }
lucoby 0:1ca938e58b91 120 //down
lucoby 0:1ca938e58b91 121 } else if (newDirection == down && direction != up || newDirection == none && direction == down|| direction == down&& newDirection == up) {
lucoby 0:1ca938e58b91 122 addToHead(&snake, snake.head->row + 1, snake.head->col);
lucoby 0:1ca938e58b91 123 direction = down;
lucoby 0:1ca938e58b91 124 //pc.printf("down\n\r");
lucoby 0:1ca938e58b91 125 if (snake.head->row == apple.row && snake.head->col == apple.col) {
lucoby 0:1ca938e58b91 126 tempRow = -1;
lucoby 0:1ca938e58b91 127 tempCol = -1;
lucoby 0:1ca938e58b91 128 score(&apple, &points);
lucoby 0:1ca938e58b91 129 } else {
lucoby 0:1ca938e58b91 130 tempRow = snake.tail->row;
lucoby 0:1ca938e58b91 131 tempCol = snake.tail->col;
lucoby 0:1ca938e58b91 132 removeFromTail(&snake);
lucoby 0:1ca938e58b91 133 }
lucoby 0:1ca938e58b91 134 }
lucoby 0:1ca938e58b91 135
lucoby 0:1ca938e58b91 136 if(!checkGameOver(&snake)){
lucoby 0:1ca938e58b91 137 game = end;
lucoby 1:aa27e5ef379b 138 break;
lucoby 0:1ca938e58b91 139 }
lucoby 0:1ca938e58b91 140
lucoby 0:1ca938e58b91 141 //view
lucoby 0:1ca938e58b91 142 if(tempRow >= 0) {
lucoby 0:1ca938e58b91 143 drawBlank(tempRow, tempCol);
lucoby 0:1ca938e58b91 144 }
lucoby 0:1ca938e58b91 145 drawApple(apple.row, apple.col);
lucoby 0:1ca938e58b91 146 drawSnake(snake.head->row, snake.head->col);
lucoby 0:1ca938e58b91 147 drawScore(points);
lucoby 0:1ca938e58b91 148 break;
lucoby 0:1ca938e58b91 149 case end:
lucoby 1:aa27e5ef379b 150 if(!pb) {
lucoby 1:aa27e5ef379b 151 game = splash;
lucoby 1:aa27e5ef379b 152 clearscr();
lucoby 1:aa27e5ef379b 153 }
lucoby 0:1ca938e58b91 154 break;
lucoby 0:1ca938e58b91 155 }
lucoby 0:1ca938e58b91 156 }
lucoby 0:1ca938e58b91 157 }