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Dependencies:   mbed FATFileSystem

Ball/Ball.cpp@3:a8960004d261, 2019-03-29 (annotated)

Committer:
ellisbhastroud
Date:
Fri Mar 29 18:45:40 2019 +0000
Revision:
3:a8960004d261
Child:
4:035448357749
Menu Working, Game Mechanisms Developed. Can now use joystick and button to shoot golf ball with power dependant on joystick magnitude.

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 3:a8960004d261 23 _x_vel = 0;
ellisbhastroud 3:a8960004d261 24 _y_vel = 0;
ellisbhastroud 3:a8960004d261 25
ellisbhastroud 3:a8960004d261 26 }
ellisbhastroud 3:a8960004d261 27
ellisbhastroud 3:a8960004d261 28 void Ball::draw_ball(N5110 &lcd)
ellisbhastroud 3:a8960004d261 29 {
ellisbhastroud 3:a8960004d261 30 lcd.drawRect(_x_pos,_y_pos,3,3,FILL_BLACK); //draws ball
ellisbhastroud 3:a8960004d261 31 }
ellisbhastroud 3:a8960004d261 32
ellisbhastroud 3:a8960004d261 33 void Ball::draw_aim(N5110 &lcd)
ellisbhastroud 3:a8960004d261 34 {
ellisbhastroud 3:a8960004d261 35 lcd.drawLine((_x_pos+1.0f),(_y_pos+1.0f),(_x_pos+1.0f)-(_joy.x*16.0f),(_y_pos+1.0f)-(-_joy.y*16.0f),2); //draws ball
ellisbhastroud 3:a8960004d261 36 }
ellisbhastroud 3:a8960004d261 37
ellisbhastroud 3:a8960004d261 38 void Ball::draw_screen(N5110 &lcd)
ellisbhastroud 3:a8960004d261 39 {
ellisbhastroud 3:a8960004d261 40 lcd.drawRect(16,8,51,31,FILL_TRANSPARENT);
ellisbhastroud 3:a8960004d261 41 }
ellisbhastroud 3:a8960004d261 42
ellisbhastroud 3:a8960004d261 43 void Ball::move_ball()
ellisbhastroud 3:a8960004d261 44 {
ellisbhastroud 3:a8960004d261 45 _x_pos = _x_pos + _x_vel;
ellisbhastroud 3:a8960004d261 46 _y_pos = _y_pos + _y_vel;
ellisbhastroud 3:a8960004d261 47 _x_vel = _x_vel*0.9f; //ball slows down 10% each loop
ellisbhastroud 3:a8960004d261 48 _y_vel = _y_vel*0.9f;
ellisbhastroud 3:a8960004d261 49 check_hit_wall();
ellisbhastroud 3:a8960004d261 50
ellisbhastroud 3:a8960004d261 51 }
ellisbhastroud 3:a8960004d261 52
ellisbhastroud 3:a8960004d261 53 void Ball::shoot_ball(Gamepad &pad)
ellisbhastroud 3:a8960004d261 54 {
ellisbhastroud 3:a8960004d261 55 if(pad.check_event(Gamepad::A_PRESSED) == true && _x_vel < 0.1f && _y_vel < 0.1f){ //if ball stationary and a pressed then shoot
ellisbhastroud 3:a8960004d261 56
ellisbhastroud 3:a8960004d261 57 _x_vel = 8.0f * _joy.x; //scale x velocity by joystick direction and magnitude
ellisbhastroud 3:a8960004d261 58 _y_vel = 8.0f * -_joy.y; //scale y velocity by joystick direction and magnitude
ellisbhastroud 3:a8960004d261 59 }
ellisbhastroud 3:a8960004d261 60
ellisbhastroud 3:a8960004d261 61 }
ellisbhastroud 3:a8960004d261 62
ellisbhastroud 3:a8960004d261 63 void Ball::set_vel(float x_vel, float y_vel)
ellisbhastroud 3:a8960004d261 64 {
ellisbhastroud 3:a8960004d261 65 _x_vel = x_vel;
ellisbhastroud 3:a8960004d261 66 _y_vel = y_vel;
ellisbhastroud 3:a8960004d261 67 }
ellisbhastroud 3:a8960004d261 68
ellisbhastroud 3:a8960004d261 69 void Ball::check_hit_wall()
ellisbhastroud 3:a8960004d261 70 {
ellisbhastroud 3:a8960004d261 71
ellisbhastroud 3:a8960004d261 72 if(_x_pos <= 16) {
ellisbhastroud 3:a8960004d261 73 _x_pos = 17;
ellisbhastroud 3:a8960004d261 74 _x_vel = -_x_vel;
ellisbhastroud 3:a8960004d261 75 }
ellisbhastroud 3:a8960004d261 76
ellisbhastroud 3:a8960004d261 77 else if(_x_pos >= (WIDTH - 18)) {
ellisbhastroud 3:a8960004d261 78 _x_pos = (WIDTH - 20);
ellisbhastroud 3:a8960004d261 79 _x_vel = -_x_vel;
ellisbhastroud 3:a8960004d261 80 }
ellisbhastroud 3:a8960004d261 81 else if(_y_pos <= 8) {
ellisbhastroud 3:a8960004d261 82 _y_pos = 9;
ellisbhastroud 3:a8960004d261 83 _y_vel = -_y_vel;
ellisbhastroud 3:a8960004d261 84 }
ellisbhastroud 3:a8960004d261 85
ellisbhastroud 3:a8960004d261 86 else if(_y_pos >= (HEIGHT - 11)) {
ellisbhastroud 3:a8960004d261 87 _y_pos = (HEIGHT - 13);
ellisbhastroud 3:a8960004d261 88 _y_vel = -_y_vel;
ellisbhastroud 3:a8960004d261 89 }
ellisbhastroud 3:a8960004d261 90 }
ellisbhastroud 3:a8960004d261 91
ellisbhastroud 3:a8960004d261 92 void Ball::read_joy(Gamepad &pad)
ellisbhastroud 3:a8960004d261 93 {
ellisbhastroud 3:a8960004d261 94
ellisbhastroud 3:a8960004d261 95 _coords = pad.get_mapped_coord();
ellisbhastroud 3:a8960004d261 96 _joy.mag = pad.get_mag();
ellisbhastroud 3:a8960004d261 97 _joy.x = _coords.x;
ellisbhastroud 3:a8960004d261 98 _joy.y = _coords.y;
ellisbhastroud 3:a8960004d261 99
ellisbhastroud 3:a8960004d261 100 }
ellisbhastroud 3:a8960004d261 101 //private methods
ellisbhastroud 3:a8960004d261 102