Ahmed Abu Zaid / Bullet

class for bullet in Car_race game

Bullet.cpp@12:170175334df8, 2017-05-02 (annotated)

Committer:
fy14aaz
Date:
Tue May 02 22:25:27 2017 +0000
Revision:
12:170175334df8
Parent:
11:61bbec4ede2c
Child:
13:dd1ccafe3972
polishing the code, encapsulating the functions into smaller ones and added the instructions part

Who changed what in which revision?

UserRevisionLine numberNew contents of line
fy14aaz 1:6bd0cbdf15f7 1 #include "Bullet.h"
fy14aaz 1:6bd0cbdf15f7 2
fy14aaz 1:6bd0cbdf15f7 3 Bullet::Bullet()
fy14aaz 1:6bd0cbdf15f7 4 {
fy14aaz 1:6bd0cbdf15f7 5
fy14aaz 1:6bd0cbdf15f7 6 }
fy14aaz 1:6bd0cbdf15f7 7
fy14aaz 1:6bd0cbdf15f7 8 Bullet::~Bullet()
fy14aaz 1:6bd0cbdf15f7 9 {
fy14aaz 1:6bd0cbdf15f7 10
fy14aaz 1:6bd0cbdf15f7 11 }
fy14aaz 1:6bd0cbdf15f7 12
fy14aaz 11:61bbec4ede2c 13 void Bullet::init(Vector2D CarHead)
fy14aaz 1:6bd0cbdf15f7 14 {
fy14aaz 11:61bbec4ede2c 15 _bullet_x = CarHead.x;
fy14aaz 11:61bbec4ede2c 16 _bullet_y = CarHead.y + 2;
fy14aaz 7:b852cf8f4f36 17 // printf("x=%d y=%d \n",_bullet_x,_bullet_y);
fy14aaz 1:6bd0cbdf15f7 18 }
fy14aaz 1:6bd0cbdf15f7 19
fy14aaz 1:6bd0cbdf15f7 20 void Bullet::draw(N5110 &lcd)
fy14aaz 1:6bd0cbdf15f7 21 {
fy14aaz 8:89a98a3d7233 22 // printf("x=%d y=%d \n",_bullet_x,_bullet_y);
fy14aaz 5:fd945bf405dc 23 lcd.drawRect(_bullet_x,_bullet_y,2,2,FILL_BLACK);
fy14aaz 8:89a98a3d7233 24 // printf("Crashes 0 \n");
fy14aaz 1:6bd0cbdf15f7 25 }
fy14aaz 1:6bd0cbdf15f7 26
fy14aaz 11:61bbec4ede2c 27 void Bullet::update(N5110 &lcd,int bulletDirection)
fy14aaz 5:fd945bf405dc 28 {
fy14aaz 8:89a98a3d7233 29 clearBullet(lcd);
fy14aaz 7:b852cf8f4f36 30 // printf("x=%d y=%d \n",_bullet_x,_bullet_y);
fy14aaz 11:61bbec4ede2c 31 if(bulletDirection==1) {
fy14aaz 4:a32443aee8f8 32 _bullet_x = _bullet_x;
fy14aaz 5:fd945bf405dc 33 _bullet_y = _bullet_y - 3;
fy14aaz 5:fd945bf405dc 34 }
fy14aaz 5:fd945bf405dc 35
fy14aaz 11:61bbec4ede2c 36 else if(bulletDirection==2) {
fy14aaz 5:fd945bf405dc 37 _bullet_x = _bullet_x - 3;
fy14aaz 5:fd945bf405dc 38 _bullet_y = _bullet_y - 3;
fy14aaz 5:fd945bf405dc 39 }
fy14aaz 5:fd945bf405dc 40
fy14aaz 11:61bbec4ede2c 41 else if(bulletDirection==3) {
fy14aaz 5:fd945bf405dc 42 _bullet_x = _bullet_x + 3;
fy14aaz 5:fd945bf405dc 43 _bullet_y = _bullet_y - 3;
fy14aaz 5:fd945bf405dc 44 }
fy14aaz 11:61bbec4ede2c 45 // the following piece of code to get around the problem of the game getting stuck when the value of _bullet_x = 1
fy14aaz 8:89a98a3d7233 46 if ((_bullet_x == -2)) {
fy14aaz 7:b852cf8f4f36 47 clearBullet(lcd);
fy14aaz 6:581257752de1 48 _bullet_x = _bullet_x - 1;
fy14aaz 6:581257752de1 49 _bullet_y = _bullet_y - 1;
fy14aaz 6:581257752de1 50 }
fy14aaz 12:170175334df8 51 destroyObstacles(lcd);
fy14aaz 6:581257752de1 52 }
fy14aaz 6:581257752de1 53
fy14aaz 6:581257752de1 54 void Bullet::clearBullet(N5110 &lcd)
fy14aaz 6:581257752de1 55 {
fy14aaz 11:61bbec4ede2c 56 lcd.setPixel(_bullet_x,_bullet_y,false); // top left
fy14aaz 11:61bbec4ede2c 57 lcd.setPixel(_bullet_x,_bullet_y+1,false); // bottom left
fy14aaz 11:61bbec4ede2c 58 lcd.setPixel(_bullet_x+1,_bullet_y,false); // top right
fy14aaz 11:61bbec4ede2c 59 lcd.setPixel(_bullet_x+1,_bullet_y+1,false); // bottom right
fy14aaz 8:89a98a3d7233 60 }
fy14aaz 8:89a98a3d7233 61
fy14aaz 8:89a98a3d7233 62 void Bullet::destroyObstacles(N5110 &lcd)
fy14aaz 8:89a98a3d7233 63 {
fy14aaz 9:4ea00d3a8ce0 64 // printf("they are x=%d y=%d \n",_bullet_x,_bullet_y);
fy14aaz 11:61bbec4ede2c 65 if ((lcd.getPixel(_bullet_x,_bullet_y)) || // top left
fy14aaz 11:61bbec4ede2c 66 (lcd.getPixel(_bullet_x,_bullet_y+1)) || // bottom left
fy14aaz 11:61bbec4ede2c 67 (lcd.getPixel(_bullet_x+1,_bullet_y)) || // top right
fy14aaz 11:61bbec4ede2c 68 (lcd.getPixel(_bullet_x+1,_bullet_y+1)) || // bottom right
fy14aaz 11:61bbec4ede2c 69 (lcd.getPixel(_bullet_x,_bullet_y-1)) || // up left
fy14aaz 11:61bbec4ede2c 70 (lcd.getPixel(_bullet_x+1,_bullet_y-1)) || // up right
fy14aaz 11:61bbec4ede2c 71 (lcd.getPixel(_bullet_x,_bullet_y+2)) || // down left
fy14aaz 11:61bbec4ede2c 72 (lcd.getPixel(_bullet_x+1,_bullet_y+2))) { // down right
fy14aaz 8:89a98a3d7233 73
fy14aaz 8:89a98a3d7233 74 for (int i=1; i<83; i+=1) {
fy14aaz 8:89a98a3d7233 75 for (int j=_bullet_y-4; j<_bullet_y+5; j+=1) {
fy14aaz 11:61bbec4ede2c 76 lcd.setPixel(i,j,false); // loop through and turn off pixels around that obstacle
fy14aaz 8:89a98a3d7233 77 }
fy14aaz 8:89a98a3d7233 78 }
fy14aaz 11:61bbec4ede2c 79 _bullet_x = -10; // set the coordinates of the bullet out of the screen
fy14aaz 11:61bbec4ede2c 80 _bullet_y = -10; // so it won't be drawn again until re-initialise the coordinates
fy14aaz 8:89a98a3d7233 81 }
fy14aaz 1:6bd0cbdf15f7 82 }