Ahmed Adamjee / Mbed 2 deprecated SnakeVSBlock

Snake vs Block Game to be run upon K64F.

Dependencies:   mbed

GameObjects/Snake/Snake.cpp@79:35cb65c52d25, 2019-05-05 (annotated)

Committer:
AhmedPlaymaker
Date:
Sun May 05 23:48:57 2019 +0000
Revision:
79:35cb65c52d25
Parent:
77:5c6bd659c32d
Child:
81:4c1641e10dcd
Fixed a bug where the snake wouldn't move if its length is 1. Also sorted out Collision functions so that they perform tasks independently.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AhmedPlaymaker 7:48ba87cd79b5 1 #include "Snake.h"
AhmedPlaymaker 7:48ba87cd79b5 2
AhmedPlaymaker 7:48ba87cd79b5 3 Snake::Snake()
AhmedPlaymaker 7:48ba87cd79b5 4 {
AhmedPlaymaker 7:48ba87cd79b5 5
AhmedPlaymaker 7:48ba87cd79b5 6 }
AhmedPlaymaker 7:48ba87cd79b5 7
AhmedPlaymaker 7:48ba87cd79b5 8 Snake::~Snake()
AhmedPlaymaker 7:48ba87cd79b5 9 {
AhmedPlaymaker 7:48ba87cd79b5 10
AhmedPlaymaker 7:48ba87cd79b5 11 }
AhmedPlaymaker 7:48ba87cd79b5 12
AhmedPlaymaker 7:48ba87cd79b5 13 //The Snake Sprite.
AhmedPlaymaker 8:890b986b16a4 14 int snake_sprite[3][3] = {
AhmedPlaymaker 8:890b986b16a4 15 {0,1,0},
AhmedPlaymaker 8:890b986b16a4 16 {1,0,1},
AhmedPlaymaker 8:890b986b16a4 17 {0,1,0},
AhmedPlaymaker 9:d1d79d4ee673 18 };
AhmedPlaymaker 7:48ba87cd79b5 19
AhmedPlaymaker 68:b9cfd27987ac 20 void Snake::init(int length, int speed)
AhmedPlaymaker 7:48ba87cd79b5 21 {
AhmedPlaymaker 68:b9cfd27987ac 22 _length = length;
AhmedPlaymaker 71:4bd2b27693f3 23 if(length >= 10) {
AhmedPlaymaker 71:4bd2b27693f3 24 _length = 10; //to stop the snake length virtually at 10 when it goes past it.
AhmedPlaymaker 71:4bd2b27693f3 25 }
AhmedPlaymaker 71:4bd2b27693f3 26
AhmedPlaymaker 68:b9cfd27987ac 27 _speed = speed;// change this according to the options selected
AhmedPlaymaker 30:461231877c89 28 m = 0; //Variable used to allow a starting location for the player.
AhmedPlaymaker 7:48ba87cd79b5 29 }
AhmedPlaymaker 7:48ba87cd79b5 30
AhmedPlaymaker 7:48ba87cd79b5 31
AhmedPlaymaker 77:5c6bd659c32d 32 void Snake::draw(N5110 &lcd, int length)
AhmedPlaymaker 33:249cf423fb18 33 {
AhmedPlaymaker 41:4edac50f010d 34 _length = length;
AhmedPlaymaker 63:205f0ca48473 35 if(m == 0) {
AhmedPlaymaker 70:7caab8069b9b 36
AhmedPlaymaker 68:b9cfd27987ac 37 Vector2D p = {WIDTH/2, HEIGHT - 3}; //Spawns player sprite near the middle of the screen.
AhmedPlaymaker 68:b9cfd27987ac 38 Snake::set_pos(p);
AhmedPlaymaker 63:205f0ca48473 39
AhmedPlaymaker 33:249cf423fb18 40 m = m+1;
AhmedPlaymaker 22:ee698f66146f 41 }
AhmedPlaymaker 63:205f0ca48473 42 //printf("SPRITE %d %d \n", _x[0], _y[0]);
AhmedPlaymaker 63:205f0ca48473 43
AhmedPlaymaker 70:7caab8069b9b 44 for(int i=0; i<=_length-1; i++) {
AhmedPlaymaker 70:7caab8069b9b 45 lcd.drawSprite(_x[i],_y[i],3,3,(int *)snake_sprite); //Function used to draw the sprite.
AhmedPlaymaker 8:890b986b16a4 46 }
AhmedPlaymaker 7:48ba87cd79b5 47 }
AhmedPlaymaker 19:05cc9f801468 48
AhmedPlaymaker 24:1c118b071430 49
AhmedPlaymaker 68:b9cfd27987ac 50 void Snake::set_pos(Vector2D p)
AhmedPlaymaker 68:b9cfd27987ac 51 {
AhmedPlaymaker 68:b9cfd27987ac 52 _x[0] = p.x; //Spawns player sprite near the middle of the screen.
AhmedPlaymaker 68:b9cfd27987ac 53 _y[0] = p.y;
AhmedPlaymaker 68:b9cfd27987ac 54
AhmedPlaymaker 79:35cb65c52d25 55 for(int i=0; i<=8; i++) {
AhmedPlaymaker 68:b9cfd27987ac 56 _x[i+1] = _x[i];
AhmedPlaymaker 68:b9cfd27987ac 57 _y[i+1] = _y[i] - 3;
AhmedPlaymaker 68:b9cfd27987ac 58 }
AhmedPlaymaker 68:b9cfd27987ac 59 }
AhmedPlaymaker 68:b9cfd27987ac 60
AhmedPlaymaker 70:7caab8069b9b 61 Vector2D Snake::get_pos(int snakeIndex)
AhmedPlaymaker 7:48ba87cd79b5 62 {
AhmedPlaymaker 70:7caab8069b9b 63 Vector2D snakepos; //Stores the snake position.
AhmedPlaymaker 71:4bd2b27693f3 64
AhmedPlaymaker 70:7caab8069b9b 65 for(int i = (snakeIndex + 1); i<=10; i++) {
AhmedPlaymaker 41:4edac50f010d 66 if(_length == i) {
AhmedPlaymaker 70:7caab8069b9b 67 snakepos.x = _x[i - (snakeIndex + 1)];
AhmedPlaymaker 70:7caab8069b9b 68 snakepos.y = _y[i - (snakeIndex + 1)];
AhmedPlaymaker 24:1c118b071430 69 return snakepos;
AhmedPlaymaker 24:1c118b071430 70 }
AhmedPlaymaker 9:d1d79d4ee673 71 }
AhmedPlaymaker 41:4edac50f010d 72 if(_length >= 10) {
AhmedPlaymaker 70:7caab8069b9b 73 snakepos.x = _x[9 - snakeIndex];
AhmedPlaymaker 70:7caab8069b9b 74 snakepos.y = _y[9 - snakeIndex];
AhmedPlaymaker 63:205f0ca48473 75 return snakepos;
AhmedPlaymaker 37:ee47699915b8 76 }
AhmedPlaymaker 70:7caab8069b9b 77 snakepos.x = NULL;
AhmedPlaymaker 70:7caab8069b9b 78 snakepos.y = NULL;
AhmedPlaymaker 24:1c118b071430 79 return snakepos;
AhmedPlaymaker 7:48ba87cd79b5 80 //printf("snakepos from player = %f %f \n", snakepos.x, snakepos.y);
AhmedPlaymaker 13:9785f2404045 81 }
AhmedPlaymaker 13:9785f2404045 82
AhmedPlaymaker 41:4edac50f010d 83 void Snake::update(Direction d, int* b)
AhmedPlaymaker 13:9785f2404045 84 {
AhmedPlaymaker 71:4bd2b27693f3 85 Snake::chainSnakeTogether(b);
AhmedPlaymaker 71:4bd2b27693f3 86
AhmedPlaymaker 71:4bd2b27693f3 87 Snake::mooveSnake(d, b);
AhmedPlaymaker 63:205f0ca48473 88
AhmedPlaymaker 71:4bd2b27693f3 89 Snake::_setSnakeLimits();
AhmedPlaymaker 71:4bd2b27693f3 90 }
AhmedPlaymaker 71:4bd2b27693f3 91
AhmedPlaymaker 71:4bd2b27693f3 92 void Snake::chainSnakeTogether(int* b)
AhmedPlaymaker 71:4bd2b27693f3 93 {
AhmedPlaymaker 25:e827f1a8fadc 94 //this makes all of the snake beeds chained together by making the lower ones drag towards where the top one was in the previous loop
AhmedPlaymaker 43:233f93860d08 95 //the b[i] makes sure that the snake beed doesn't move if that beed is deactivated by colliding with a barrier. b[i] also signifies the specific beed number by i.
AhmedPlaymaker 79:35cb65c52d25 96 for(int i=1; i<=9; i++) {
AhmedPlaymaker 71:4bd2b27693f3 97 if((_length > i)&&(_x[i-1] != _x[i])) {
AhmedPlaymaker 71:4bd2b27693f3 98 if ((_x[i-1] > _x[i])&&(b[i] == 1)&&(b[i-1] == 1)) {
AhmedPlaymaker 71:4bd2b27693f3 99 _x[i-1]-=_speed;
AhmedPlaymaker 8:890b986b16a4 100 }
AhmedPlaymaker 71:4bd2b27693f3 101 if ((_x[i-1] < _x[i])&&(b[i] == 1)&&(b[i-1] == 1)) {
AhmedPlaymaker 71:4bd2b27693f3 102 _x[i-1]+=_speed;
AhmedPlaymaker 22:ee698f66146f 103 }
AhmedPlaymaker 21:e41126528cc6 104 }
AhmedPlaymaker 21:e41126528cc6 105 }
AhmedPlaymaker 71:4bd2b27693f3 106 }
AhmedPlaymaker 71:4bd2b27693f3 107
AhmedPlaymaker 71:4bd2b27693f3 108 void Snake::mooveSnake(Direction d, int* b)
AhmedPlaymaker 71:4bd2b27693f3 109 {
AhmedPlaymaker 63:205f0ca48473 110 //this makes the controls of W/E directions only exclusive to the top beed in the snake
AhmedPlaymaker 79:35cb65c52d25 111 for(int i=0; i<=9; i++) {
AhmedPlaymaker 63:205f0ca48473 112 if((_length == i+1)&&(b[i] == 1)) {
AhmedPlaymaker 63:205f0ca48473 113
AhmedPlaymaker 63:205f0ca48473 114 if (d == E) {
AhmedPlaymaker 63:205f0ca48473 115 _x[i]+= _speed;
AhmedPlaymaker 22:ee698f66146f 116 }
AhmedPlaymaker 63:205f0ca48473 117
AhmedPlaymaker 63:205f0ca48473 118 if (d == W) {
AhmedPlaymaker 63:205f0ca48473 119 _x[i]-= _speed;
AhmedPlaymaker 63:205f0ca48473 120 }
AhmedPlaymaker 63:205f0ca48473 121
AhmedPlaymaker 63:205f0ca48473 122 }
AhmedPlaymaker 7:48ba87cd79b5 123 }
AhmedPlaymaker 71:4bd2b27693f3 124 }
AhmedPlaymaker 7:48ba87cd79b5 125
AhmedPlaymaker 71:4bd2b27693f3 126 void Snake::_setSnakeLimits()
AhmedPlaymaker 71:4bd2b27693f3 127 {
AhmedPlaymaker 71:4bd2b27693f3 128 // the following makes sure that when the length is increased, the snake stays where it was when it ate food.
AhmedPlaymaker 7:48ba87cd79b5 129
AhmedPlaymaker 79:35cb65c52d25 130 for(int i=1; i<=9; i++) {
AhmedPlaymaker 63:205f0ca48473 131
AhmedPlaymaker 79:35cb65c52d25 132 if(_length < (i+1)) {
AhmedPlaymaker 79:35cb65c52d25 133 _x[i] = _x[i-1];
AhmedPlaymaker 63:205f0ca48473 134 }
AhmedPlaymaker 9:d1d79d4ee673 135 }
AhmedPlaymaker 63:205f0ca48473 136
AhmedPlaymaker 25:e827f1a8fadc 137 //Limits set so that the snake does not travel off the screen.
AhmedPlaymaker 79:35cb65c52d25 138 for(int i=0; i<=9; i++) {
AhmedPlaymaker 63:205f0ca48473 139
AhmedPlaymaker 63:205f0ca48473 140 if (_x[i] <= 0) {
AhmedPlaymaker 63:205f0ca48473 141 _x[i] = 0;
AhmedPlaymaker 63:205f0ca48473 142 }
AhmedPlaymaker 63:205f0ca48473 143
AhmedPlaymaker 63:205f0ca48473 144 if (_x[i] > 81) {
AhmedPlaymaker 63:205f0ca48473 145 _x[i] = 81;
AhmedPlaymaker 63:205f0ca48473 146 }
AhmedPlaymaker 8:890b986b16a4 147 }
AhmedPlaymaker 70:7caab8069b9b 148 }