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Dependencies:   mbed FATFileSystem

Ball/Ball.cpp@5:0b31909caf7f, 2019-04-17 (annotated)

Committer:
ellisbhastroud
Date:
Wed Apr 17 10:27:09 2019 +0000
Revision:
5:0b31909caf7f
Parent:
4:035448357749
Child:
8:d410856c6d04
Levels Added Not functioning

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ellisbhastroud 3:a8960004d261 1 #include "Ball.h"
ellisbhastroud 3:a8960004d261 2
ellisbhastroud 3:a8960004d261 3 //constructor
ellisbhastroud 3:a8960004d261 4
ellisbhastroud 3:a8960004d261 5 Ball::Ball()
ellisbhastroud 3:a8960004d261 6 {
ellisbhastroud 3:a8960004d261 7
ellisbhastroud 3:a8960004d261 8 }
ellisbhastroud 3:a8960004d261 9
ellisbhastroud 3:a8960004d261 10 //deconstructor
ellisbhastroud 3:a8960004d261 11
ellisbhastroud 3:a8960004d261 12 Ball::~Ball()
ellisbhastroud 3:a8960004d261 13 {
ellisbhastroud 3:a8960004d261 14
ellisbhastroud 3:a8960004d261 15 }
ellisbhastroud 3:a8960004d261 16
ellisbhastroud 3:a8960004d261 17 //public methods
ellisbhastroud 3:a8960004d261 18
ellisbhastroud 3:a8960004d261 19 void Ball::init(float x, float y) //ball starts stationary in x and y positions given
ellisbhastroud 3:a8960004d261 20 {
ellisbhastroud 3:a8960004d261 21 _x_pos = x;
ellisbhastroud 3:a8960004d261 22 _y_pos = y;
ellisbhastroud 4:035448357749 23 _x_vel = 0.0f;
ellisbhastroud 4:035448357749 24 _y_vel = 0.0f;
ellisbhastroud 4:035448357749 25 _shot_count = 0;
ellisbhastroud 3:a8960004d261 26
ellisbhastroud 3:a8960004d261 27 }
ellisbhastroud 3:a8960004d261 28
ellisbhastroud 5:0b31909caf7f 29 void Ball::drawBall(N5110 &lcd)
ellisbhastroud 3:a8960004d261 30 {
ellisbhastroud 5:0b31909caf7f 31 lcd.drawRect(_x_pos,_y_pos,2,2,FILL_BLACK); //draws ball
ellisbhastroud 3:a8960004d261 32 }
ellisbhastroud 3:a8960004d261 33
ellisbhastroud 5:0b31909caf7f 34 void Ball::printShotCount(N5110 &lcd)
ellisbhastroud 3:a8960004d261 35 {
ellisbhastroud 5:0b31909caf7f 36 char buffer[14];
ellisbhastroud 5:0b31909caf7f 37 sprintf(buffer,"Shot %i",_shot_count);
ellisbhastroud 5:0b31909caf7f 38 lcd.printString(buffer,40,0);
ellisbhastroud 4:035448357749 39 }
ellisbhastroud 4:035448357749 40
ellisbhastroud 5:0b31909caf7f 41 void Ball::drawPower(N5110 &lcd, Gamepad &pad)
ellisbhastroud 5:0b31909caf7f 42 {
ellisbhastroud 5:0b31909caf7f 43
ellisbhastroud 5:0b31909caf7f 44 _mag = pad.get_mag();
ellisbhastroud 5:0b31909caf7f 45 lcd.drawRect(0,0,36,6,FILL_TRANSPARENT);
ellisbhastroud 5:0b31909caf7f 46 lcd.drawRect(0,0,36*_mag,6,FILL_BLACK);
ellisbhastroud 3:a8960004d261 47 }
ellisbhastroud 3:a8960004d261 48
ellisbhastroud 3:a8960004d261 49
ellisbhastroud 5:0b31909caf7f 50 void Ball::move_ball(int frame_rate)
ellisbhastroud 3:a8960004d261 51 {
ellisbhastroud 4:035448357749 52 _x_pos = _x_pos + _x_vel*10.0f/frame_rate; //frame_rate used to scale ball movement so that it is the same for any fps
ellisbhastroud 4:035448357749 53 _y_pos = _y_pos + _y_vel*10.0f/frame_rate;
ellisbhastroud 4:035448357749 54 _x_vel = _x_vel*(1.0f-(0.8f/frame_rate)); //ball slows down 10% each loop (scaled by time between frames)
ellisbhastroud 4:035448357749 55 _y_vel = _y_vel*(1.0f-(0.8f/frame_rate));
ellisbhastroud 3:a8960004d261 56
ellisbhastroud 3:a8960004d261 57 }
ellisbhastroud 3:a8960004d261 58
ellisbhastroud 4:035448357749 59 Vector2D Ball::get_ball_pos()
ellisbhastroud 4:035448357749 60 {
ellisbhastroud 4:035448357749 61 Vector2D pos = {_x_pos, _y_pos};
ellisbhastroud 4:035448357749 62 return pos;
ellisbhastroud 4:035448357749 63 }
ellisbhastroud 4:035448357749 64
ellisbhastroud 3:a8960004d261 65 void Ball::shoot_ball(Gamepad &pad)
ellisbhastroud 5:0b31909caf7f 66 {
ellisbhastroud 5:0b31909caf7f 67 _joystick = pad.get_mapped_coord();
ellisbhastroud 3:a8960004d261 68
ellisbhastroud 4:035448357749 69 if(pad.check_event(Gamepad::A_PRESSED) == true && abs(_x_vel) < 0.05f && abs(_y_vel) < 0.05f){ //if ball stationary and a pressed then shoot
ellisbhastroud 5:0b31909caf7f 70 _x_vel = 8.0f * _joystick.x; //scale x velocity by joystick direction and magnitude
ellisbhastroud 5:0b31909caf7f 71 _y_vel = 8.0f * -_joystick.y; //scale y velocity by joystick direction and magnitude
ellisbhastroud 5:0b31909caf7f 72 _shot_count ++; //increment shot count
ellisbhastroud 3:a8960004d261 73 }
ellisbhastroud 3:a8960004d261 74
ellisbhastroud 3:a8960004d261 75 }
ellisbhastroud 3:a8960004d261 76
ellisbhastroud 4:035448357749 77 int Ball::get_shot_count()
ellisbhastroud 4:035448357749 78 {
ellisbhastroud 4:035448357749 79 int shot_count = _shot_count;
ellisbhastroud 4:035448357749 80 return shot_count;
ellisbhastroud 4:035448357749 81 }
ellisbhastroud 4:035448357749 82
ellisbhastroud 3:a8960004d261 83 void Ball::set_vel(float x_vel, float y_vel)
ellisbhastroud 3:a8960004d261 84 {
ellisbhastroud 3:a8960004d261 85 _x_vel = x_vel;
ellisbhastroud 3:a8960004d261 86 _y_vel = y_vel;
ellisbhastroud 3:a8960004d261 87 }
ellisbhastroud 3:a8960004d261 88
ellisbhastroud 3:a8960004d261 89 void Ball::read_joy(Gamepad &pad)
ellisbhastroud 3:a8960004d261 90 {
ellisbhastroud 3:a8960004d261 91
ellisbhastroud 4:035448357749 92 _joystick = pad.get_mapped_coord(); //x and y coordinates from joystick assigned
ellisbhastroud 4:035448357749 93
ellisbhastroud 3:a8960004d261 94
ellisbhastroud 3:a8960004d261 95 }
ellisbhastroud 5:0b31909caf7f 96
ellisbhastroud 5:0b31909caf7f 97 void Ball::check_wall_bounce() //check before and after move_ball called
ellisbhastroud 5:0b31909caf7f 98 {
ellisbhastroud 5:0b31909caf7f 99 if(_x_pos - 1 < 9 && _y_pos >= 26 && _y_pos <= 40 && _x_vel < 0){ // left wall (x=9 ,26<=y<=40)
ellisbhastroud 5:0b31909caf7f 100 _x_pos = 10;
ellisbhastroud 5:0b31909caf7f 101 _x_vel = -0.95f*_x_vel; //5% velocity lost on impact and bounce
ellisbhastroud 5:0b31909caf7f 102 }
ellisbhastroud 5:0b31909caf7f 103 if(_x_pos + 1 > 74 && _y_pos <= 40 && _y_pos >= 9 && _x_vel > 0){ //right wall x + 1
ellisbhastroud 5:0b31909caf7f 104 _x_pos = 72;
ellisbhastroud 5:0b31909caf7f 105 _x_vel = -0.95f*_x_vel;
ellisbhastroud 5:0b31909caf7f 106 }
ellisbhastroud 5:0b31909caf7f 107 if(_y_pos - 1 < 9 && _x_pos <= 74 && _x_pos >= 50 && _y_vel < 0){ //top wall y -1
ellisbhastroud 5:0b31909caf7f 108 _y_pos = 10;
ellisbhastroud 5:0b31909caf7f 109 _y_vel = -0.95f*_y_vel;
ellisbhastroud 5:0b31909caf7f 110 }
ellisbhastroud 5:0b31909caf7f 111 if(_y_pos + 1 > 40 && _x_pos >= 9 && _x_pos <= 74 && _y_vel > 0){ //bottom wall y + 2
ellisbhastroud 5:0b31909caf7f 112 _y_pos = 39;
ellisbhastroud 5:0b31909caf7f 113 _y_vel = -0.95f*_y_vel;
ellisbhastroud 5:0b31909caf7f 114 }
ellisbhastroud 5:0b31909caf7f 115 if(_x_pos - 1 < 50 && _y_pos >= 9 && _y_pos <= 26 && _x_vel < 0){ // left wall x -1
ellisbhastroud 5:0b31909caf7f 116 _x_pos = 51;
ellisbhastroud 5:0b31909caf7f 117 _x_vel = -0.95f*_x_vel; //5% velocity lost on impact and bounce
ellisbhastroud 5:0b31909caf7f 118 }
ellisbhastroud 5:0b31909caf7f 119 if(_y_pos - 1 < 26 && _x_pos <= 50 && _x_pos >= 9 && _y_vel < 0 ){ //top wall y -1
ellisbhastroud 5:0b31909caf7f 120 _y_pos = 27;
ellisbhastroud 5:0b31909caf7f 121 _y_vel = -0.95f*_y_vel;
ellisbhastroud 5:0b31909caf7f 122 }
ellisbhastroud 5:0b31909caf7f 123 }
ellisbhastroud 3:a8960004d261 124 //private methods
ellisbhastroud 3:a8960004d261 125