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Dependencies:   mbed FATFileSystem

Ball/Ball.cpp@4:035448357749, 2019-04-08 (annotated)

Committer:
ellisbhastroud
Date:
Mon Apr 08 15:10:28 2019 +0000
Revision:
4:035448357749
Parent:
3:a8960004d261
Child:
5:0b31909caf7f
Settings section of menu fully 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 3:a8960004d261 29 void Ball::draw_ball(N5110 &lcd)
ellisbhastroud 3:a8960004d261 30 {
ellisbhastroud 3:a8960004d261 31 lcd.drawRect(_x_pos,_y_pos,3,3,FILL_BLACK); //draws ball
ellisbhastroud 3:a8960004d261 32 }
ellisbhastroud 3:a8960004d261 33
ellisbhastroud 4:035448357749 34 void Ball::draw_aim(N5110 &lcd, Gamepad &pad)
ellisbhastroud 3:a8960004d261 35 {
ellisbhastroud 4:035448357749 36 read_joy(pad);
ellisbhastroud 4:035448357749 37 lcd.drawLine((_x_pos+1.0f),(_y_pos+1.0f),(_x_pos+1.0f)+(_joystick.x*16.0f),(_y_pos+1.0f)-(_joystick.y*16.0f),1); //draws ball
ellisbhastroud 4:035448357749 38 }
ellisbhastroud 4:035448357749 39
ellisbhastroud 4:035448357749 40 void Ball::draw_course(N5110 &lcd)
ellisbhastroud 4:035448357749 41 {
ellisbhastroud 4:035448357749 42 lcd.drawRect(0,16,83,32,FILL_TRANSPARENT);
ellisbhastroud 3:a8960004d261 43 }
ellisbhastroud 3:a8960004d261 44
ellisbhastroud 4:035448357749 45 void Ball::draw_screen(N5110 &lcd, Gamepad &pad) {
ellisbhastroud 4:035448357749 46
ellisbhastroud 4:035448357749 47 draw_course(lcd);
ellisbhastroud 4:035448357749 48 draw_ball(lcd);
ellisbhastroud 4:035448357749 49 draw_aim(lcd, pad);
ellisbhastroud 4:035448357749 50 print_shot_count(lcd);
ellisbhastroud 3:a8960004d261 51 }
ellisbhastroud 3:a8960004d261 52
ellisbhastroud 4:035448357749 53 void Ball::move_ball(int frame_rate, N5110 &lcd)
ellisbhastroud 3:a8960004d261 54 {
ellisbhastroud 4:035448357749 55 check_bounce(lcd);
ellisbhastroud 4:035448357749 56 _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 57 _y_pos = _y_pos + _y_vel*10.0f/frame_rate;
ellisbhastroud 4:035448357749 58 _x_vel = _x_vel*(1.0f-(0.8f/frame_rate)); //ball slows down 10% each loop (scaled by time between frames)
ellisbhastroud 4:035448357749 59 _y_vel = _y_vel*(1.0f-(0.8f/frame_rate));
ellisbhastroud 4:035448357749 60 check_bounce(lcd);
ellisbhastroud 3:a8960004d261 61
ellisbhastroud 3:a8960004d261 62 }
ellisbhastroud 3:a8960004d261 63
ellisbhastroud 4:035448357749 64 Vector2D Ball::get_ball_pos()
ellisbhastroud 4:035448357749 65 {
ellisbhastroud 4:035448357749 66 Vector2D pos = {_x_pos, _y_pos};
ellisbhastroud 4:035448357749 67 return pos;
ellisbhastroud 4:035448357749 68 }
ellisbhastroud 4:035448357749 69
ellisbhastroud 3:a8960004d261 70 void Ball::shoot_ball(Gamepad &pad)
ellisbhastroud 3:a8960004d261 71 {
ellisbhastroud 3:a8960004d261 72
ellisbhastroud 4:035448357749 73 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 4:035448357749 74 _x_vel = 8.0f * _joystick.x; //scale x velocity by joystick direction and magnitude
ellisbhastroud 4:035448357749 75 _y_vel = 8.0f * -_joystick.y; //scale y velocity by joystick direction and magnitude
ellisbhastroud 4:035448357749 76 _shot_count ++; //increment shot count
ellisbhastroud 4:035448357749 77
ellisbhastroud 3:a8960004d261 78 }
ellisbhastroud 3:a8960004d261 79
ellisbhastroud 3:a8960004d261 80 }
ellisbhastroud 3:a8960004d261 81
ellisbhastroud 4:035448357749 82 int Ball::get_shot_count()
ellisbhastroud 4:035448357749 83 {
ellisbhastroud 4:035448357749 84 int shot_count = _shot_count;
ellisbhastroud 4:035448357749 85 return shot_count;
ellisbhastroud 4:035448357749 86 }
ellisbhastroud 4:035448357749 87
ellisbhastroud 4:035448357749 88 void Ball::print_shot_count(N5110 &lcd)
ellisbhastroud 4:035448357749 89 {
ellisbhastroud 4:035448357749 90 char buffer[14];
ellisbhastroud 4:035448357749 91 sprintf(buffer,"Shot Count = %i",_shot_count);
ellisbhastroud 4:035448357749 92 lcd.printString(buffer,0,0);
ellisbhastroud 4:035448357749 93 }
ellisbhastroud 4:035448357749 94
ellisbhastroud 3:a8960004d261 95 void Ball::set_vel(float x_vel, float y_vel)
ellisbhastroud 3:a8960004d261 96 {
ellisbhastroud 3:a8960004d261 97 _x_vel = x_vel;
ellisbhastroud 3:a8960004d261 98 _y_vel = y_vel;
ellisbhastroud 3:a8960004d261 99 }
ellisbhastroud 3:a8960004d261 100
ellisbhastroud 4:035448357749 101 void Ball::check_bounce(N5110 &lcd)
ellisbhastroud 3:a8960004d261 102 {
ellisbhastroud 3:a8960004d261 103
ellisbhastroud 4:035448357749 104 if(_x_pos - 1 < 0 ) { //
ellisbhastroud 4:035448357749 105 _x_pos = 1;
ellisbhastroud 3:a8960004d261 106 _x_vel = -_x_vel;
ellisbhastroud 3:a8960004d261 107 }
ellisbhastroud 4:035448357749 108 else if(_y_pos + 3 > 48) {
ellisbhastroud 4:035448357749 109 _y_pos = 45;
ellisbhastroud 3:a8960004d261 110 _y_vel = -_y_vel;
ellisbhastroud 3:a8960004d261 111 }
ellisbhastroud 4:035448357749 112 else if(_x_pos + 3 > 83 ) {
ellisbhastroud 4:035448357749 113 _x_pos = 80;
ellisbhastroud 4:035448357749 114 _x_vel = -_x_vel;
ellisbhastroud 4:035448357749 115 }
ellisbhastroud 4:035448357749 116 else if(_y_pos - 1 < 16) {
ellisbhastroud 4:035448357749 117 _y_pos = 17;
ellisbhastroud 4:035448357749 118 _y_vel = -_y_vel;
ellisbhastroud 4:035448357749 119 }
ellisbhastroud 4:035448357749 120
ellisbhastroud 4:035448357749 121
ellisbhastroud 3:a8960004d261 122 }
ellisbhastroud 3:a8960004d261 123
ellisbhastroud 3:a8960004d261 124 void Ball::read_joy(Gamepad &pad)
ellisbhastroud 3:a8960004d261 125 {
ellisbhastroud 3:a8960004d261 126
ellisbhastroud 4:035448357749 127 _joystick = pad.get_mapped_coord(); //x and y coordinates from joystick assigned
ellisbhastroud 4:035448357749 128
ellisbhastroud 3:a8960004d261 129
ellisbhastroud 3:a8960004d261 130 }
ellisbhastroud 3:a8960004d261 131 //private methods
ellisbhastroud 3:a8960004d261 132