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Dependencies:   mbed FATFileSystem

Ball/Ball.cpp@16:c8d68cbd1ae2, 2019-05-09 (annotated)

Committer:
ellisbhastroud
Date:
Thu May 09 09:58:51 2019 +0000
Revision:
16:c8d68cbd1ae2
Parent:
15:d855e8c666e7
Child:
17:98127ac75195
Penultimate Commit - Tidied a little and checking documentation.

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 9:bc34f2243e43 19 void Ball::init(Coord start_pos) //ball starts new level stationary in x and y positions given
ellisbhastroud 3:a8960004d261 20 {
ellisbhastroud 12:7f7fadb5c106 21 _x_pos = start_pos.x; //moves ball position to coordinates given
ellisbhastroud 9:bc34f2243e43 22 _y_pos = start_pos.y;
ellisbhastroud 12:7f7fadb5c106 23 _x_vel = 0.0f; //makes ball stationary
ellisbhastroud 4:035448357749 24 _y_vel = 0.0f;
ellisbhastroud 12:7f7fadb5c106 25 _total_shot_count = _total_shot_count + _shot_count; //totals shot count from previous levels
ellisbhastroud 12:7f7fadb5c106 26 _shot_count = 0; //resets in level shot count for the next level
ellisbhastroud 3:a8960004d261 27 }
ellisbhastroud 3:a8960004d261 28
ellisbhastroud 12:7f7fadb5c106 29 void Ball::drawBall(N5110 &lcd) //draws ball into lcd buffer
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 12:7f7fadb5c106 34 void Ball::printShotCount(N5110 &lcd) //this is tallied for each level to give user an end score
ellisbhastroud 3:a8960004d261 35 {
ellisbhastroud 5:0b31909caf7f 36 char buffer[14];
ellisbhastroud 16:c8d68cbd1ae2 37 sprintf(buffer,"%i",_shot_count);
ellisbhastroud 16:c8d68cbd1ae2 38 lcd.printString(buffer,70,0);
ellisbhastroud 4:035448357749 39 }
ellisbhastroud 4:035448357749 40
ellisbhastroud 12:7f7fadb5c106 41 void Ball::drawPower(N5110 &lcd, float mag) //draws power bar in top left of screen to indicate how hard a shot is hit
ellisbhastroud 5:0b31909caf7f 42 {
ellisbhastroud 10:9f54a6366e94 43 lcd.drawRect(0,1,36,6,FILL_TRANSPARENT);
ellisbhastroud 10:9f54a6366e94 44 lcd.drawRect(0,1,36*mag,6,FILL_BLACK);
ellisbhastroud 3:a8960004d261 45 }
ellisbhastroud 3:a8960004d261 46
ellisbhastroud 3:a8960004d261 47
ellisbhastroud 12:7f7fadb5c106 48 void Ball::drawAim(N5110 &lcd, Vector2D joy_coord, float angle) //draws aim help for ball
ellisbhastroud 12:7f7fadb5c106 49 { //aim indicates path of ball if shot
ellisbhastroud 12:7f7fadb5c106 50 if(angle != -1.0f && abs(_x_vel) < TOL && abs(_y_vel) < TOL) { //if joystick off centre and ball stationary draw shot direction indicator
ellisbhastroud 12:7f7fadb5c106 51 lcd.drawLine(_x_pos,_y_pos,_x_pos-12*joy_coord.x,_y_pos+12*joy_coord.y,2);
ellisbhastroud 8:d410856c6d04 52 }
ellisbhastroud 8:d410856c6d04 53 }
ellisbhastroud 8:d410856c6d04 54
ellisbhastroud 15:d855e8c666e7 55 void Ball::move_ball() //controls using
ellisbhastroud 3:a8960004d261 56 {
ellisbhastroud 10:9f54a6366e94 57 _x_pos = _x_pos + _x_vel*10.0f/_frame_rate; //move ball position at rate proportional to velocity in each direction
ellisbhastroud 10:9f54a6366e94 58 _y_pos = _y_pos + _y_vel*10.0f/_frame_rate;
ellisbhastroud 12:7f7fadb5c106 59 _x_vel = _x_vel*(1.0f-(0.6f/_frame_rate)); //velocity decreases as ball moves
ellisbhastroud 12:7f7fadb5c106 60 _y_vel = _y_vel*(1.0f-(0.6f/_frame_rate)); //inversely proportional to frame rate to ensure ball movement is the same at all frame rates
ellisbhastroud 14:08ac9aaa34c3 61 if(_x_vel != 0 && _y_vel != 0 && abs(_x_vel) < 0.15f && abs(_y_vel) < 0.15f) { //to make ball come to complete stop when velocity is small enough
ellisbhastroud 8:d410856c6d04 62 _x_vel = 0;
ellisbhastroud 8:d410856c6d04 63 _y_vel = 0;
ellisbhastroud 8:d410856c6d04 64 }
ellisbhastroud 3:a8960004d261 65 }
ellisbhastroud 3:a8960004d261 66
ellisbhastroud 14:08ac9aaa34c3 67 void Ball::check_shoot_ball(Gamepad &pad, Vector2D _joy_coord) //checks if shoot coniditons met and A pressed then ball is shot using joystick input
ellisbhastroud 12:7f7fadb5c106 68 { //direction of shot is in opposite direction of joystick direction
ellisbhastroud 14:08ac9aaa34c3 69 if(pad.check_event(Gamepad::A_PRESSED) == true && abs(_x_vel) < TOL && abs(_y_vel) < TOL && pad.get_mag() > 0.05f){ //If ball stationary and A pressed then shoot
ellisbhastroud 12:7f7fadb5c106 70 _x_vel = 6.0f * -_joy_coord.x; //scale x velocity by joystick direction and magnitude
ellisbhastroud 12:7f7fadb5c106 71 _y_vel = 6.0f * _joy_coord.y; //scale y velocity by joystick direction and magnitude
ellisbhastroud 12:7f7fadb5c106 72 _shot_count ++; //increment shot count
ellisbhastroud 14:08ac9aaa34c3 73 pad.tone(392.00 , 0.25); //play note when ball shot (G4)
ellisbhastroud 12:7f7fadb5c106 74 }
ellisbhastroud 4:035448357749 75 }
ellisbhastroud 4:035448357749 76
ellisbhastroud 12:7f7fadb5c106 77 void Ball::set_total_shot_count(int total_shot_count) //used to initialise value to 0
ellisbhastroud 12:7f7fadb5c106 78 {
ellisbhastroud 14:08ac9aaa34c3 79 _total_shot_count = total_shot_count;
ellisbhastroud 3:a8960004d261 80 }
ellisbhastroud 3:a8960004d261 81
ellisbhastroud 12:7f7fadb5c106 82 int Ball::get_total_shot_count() //used at end to add tally to highscore - the lowest shot count is the best score
ellisbhastroud 3:a8960004d261 83 {
ellisbhastroud 16:c8d68cbd1ae2 84 return _total_shot_count;
ellisbhastroud 9:bc34f2243e43 85 }
ellisbhastroud 9:bc34f2243e43 86
ellisbhastroud 16:c8d68cbd1ae2 87 int Ball::get_shot_count() //returns shot count for current level - is used for tests
ellisbhastroud 16:c8d68cbd1ae2 88 {
ellisbhastroud 16:c8d68cbd1ae2 89 return _shot_count;
ellisbhastroud 16:c8d68cbd1ae2 90 }
ellisbhastroud 9:bc34f2243e43 91 bool Ball::check_hole(Coord hole) //returns true when ball is hit in hole and next level begins
ellisbhastroud 9:bc34f2243e43 92 {
ellisbhastroud 9:bc34f2243e43 93 if(_x_pos > hole.x - 1 && _x_pos < hole.x + 2 && _y_pos > hole.y - 1 && _y_pos < hole.y + 2) {
ellisbhastroud 9:bc34f2243e43 94 _x_vel = 0; //stop ball moving
ellisbhastroud 9:bc34f2243e43 95 _y_vel = 0;
ellisbhastroud 9:bc34f2243e43 96 _x_pos = hole.x;
ellisbhastroud 9:bc34f2243e43 97 _y_pos = hole.y;
ellisbhastroud 9:bc34f2243e43 98 return true; //causes next level process to begin
ellisbhastroud 9:bc34f2243e43 99 }
ellisbhastroud 9:bc34f2243e43 100 else {
ellisbhastroud 9:bc34f2243e43 101 return false;
ellisbhastroud 9:bc34f2243e43 102 }
ellisbhastroud 9:bc34f2243e43 103 }
ellisbhastroud 9:bc34f2243e43 104
ellisbhastroud 16:c8d68cbd1ae2 105 void Ball::check_wall_bounce(const WallMap map[], int size) //uses information from WallMap array to check if ball should bounce
ellisbhastroud 16:c8d68cbd1ae2 106 { //every frame code runs through array of walls information to check if ball should bounce
ellisbhastroud 12:7f7fadb5c106 107 for(int i = 0; i < size; i ++) { //runs through each element in array of wall types to check if bounce condition is met by ball
ellisbhastroud 3:a8960004d261 108
ellisbhastroud 16:c8d68cbd1ae2 109 if(map[i].wall == LEFT) { ////if current term of wall type struct array is a left wall
ellisbhastroud 16:c8d68cbd1ae2 110 left_bounce(map[i].start,map[i].end); //calls left_bounce() using start and end coordinates of the left wall
ellisbhastroud 8:d410856c6d04 111 }
ellisbhastroud 16:c8d68cbd1ae2 112 else if(map[i].wall == RIGHT) { //if current term of wall type struct array is a right wall
ellisbhastroud 16:c8d68cbd1ae2 113 right_bounce(map[i].start,map[i].end); //calls right_bounce() using start and end coordinates of the right wall
ellisbhastroud 8:d410856c6d04 114 }
ellisbhastroud 16:c8d68cbd1ae2 115 else if(map[i].wall == TOP) { //if current term of wall type struct array is a top wall
ellisbhastroud 16:c8d68cbd1ae2 116 top_bounce(map[i].start,map[i].end); //calls top_bounce() using start and end coordinates of top left wall
ellisbhastroud 8:d410856c6d04 117 }
ellisbhastroud 16:c8d68cbd1ae2 118 else if(map[i].wall == BOTTOM) { //if current term of wall type struct array is a bottom wall
ellisbhastroud 16:c8d68cbd1ae2 119 bottom_bounce(map[i].start,map[i].end); //calls bottom_bounce() using start and end coordinates of the bottom wall
ellisbhastroud 8:d410856c6d04 120 }
ellisbhastroud 16:c8d68cbd1ae2 121 else if(map[i].wall == BOTTOMLEFT) { //if current term of wall type struct array is a bottom left wall
ellisbhastroud 16:c8d68cbd1ae2 122 bottom_left_bounce(map[i].start,map[i].end); //calls bottom_left_bounce() using start and end coordinates of the bottome left wall
ellisbhastroud 10:9f54a6366e94 123 }
ellisbhastroud 16:c8d68cbd1ae2 124 else if(map[i].wall == BOTTOMRIGHT) { //if current term of wall type struct array is a bottom right wall
ellisbhastroud 16:c8d68cbd1ae2 125 bottom_right_bounce(map[i].start,map[i].end); //calls bottom_right_bounce() using start and end coordinates of the bottome right wall
ellisbhastroud 10:9f54a6366e94 126 }
ellisbhastroud 16:c8d68cbd1ae2 127 else if(map[i].wall == TOPLEFT) { //if current term of wall type struct array is a top left wall
ellisbhastroud 16:c8d68cbd1ae2 128 top_left_bounce(map[i].start,map[i].end); //calls top_left_bounce() using start and end coordinates of the top left wall
ellisbhastroud 10:9f54a6366e94 129 }
ellisbhastroud 16:c8d68cbd1ae2 130 else if(map[i].wall == TOPRIGHT) { //if current term of wall type struct array is a top right wall
ellisbhastroud 16:c8d68cbd1ae2 131 top_right_bounce(map[i].start,map[i].end); //calls top_right_bounce() using start and end coordinates of the top right wall
ellisbhastroud 10:9f54a6366e94 132 }
ellisbhastroud 8:d410856c6d04 133 }
ellisbhastroud 3:a8960004d261 134 }
ellisbhastroud 5:0b31909caf7f 135
ellisbhastroud 10:9f54a6366e94 136 void Ball::set_frame_rate(int frame_rate)
ellisbhastroud 10:9f54a6366e94 137 {
ellisbhastroud 10:9f54a6366e94 138 _frame_rate = frame_rate;
ellisbhastroud 10:9f54a6366e94 139 }
ellisbhastroud 12:7f7fadb5c106 140
ellisbhastroud 14:08ac9aaa34c3 141 bool Ball::get_bounce_flag()
ellisbhastroud 14:08ac9aaa34c3 142 {
ellisbhastroud 14:08ac9aaa34c3 143 return _bounce_flag;
ellisbhastroud 14:08ac9aaa34c3 144 }
ellisbhastroud 14:08ac9aaa34c3 145
ellisbhastroud 14:08ac9aaa34c3 146 void Ball::reset_bounce_flag()
ellisbhastroud 14:08ac9aaa34c3 147 {
ellisbhastroud 14:08ac9aaa34c3 148 _bounce_flag = false;
ellisbhastroud 14:08ac9aaa34c3 149 }
ellisbhastroud 14:08ac9aaa34c3 150
ellisbhastroud 3:a8960004d261 151 //private methods
ellisbhastroud 3:a8960004d261 152
ellisbhastroud 16:c8d68cbd1ae2 153 void Ball::left_bounce(Coord start, Coord end) //checks if there is a collision with left wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 154 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 12:7f7fadb5c106 155 if(_x_pos + _x_vel*10.0f/_frame_rate - 1 < start.x && _x_pos + _x_vel*10.0f/_frame_rate > start.x - 5 && _y_pos >= start.y && _y_pos + 1 <= end.y && _x_vel < 0){
ellisbhastroud 12:7f7fadb5c106 156 _x_pos = start.x + 1;
ellisbhastroud 16:c8d68cbd1ae2 157 _x_vel = -_x_vel; //left wall bounce causes x velocity to change sign
ellisbhastroud 14:08ac9aaa34c3 158 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 159 }
ellisbhastroud 12:7f7fadb5c106 160 }
ellisbhastroud 12:7f7fadb5c106 161
ellisbhastroud 16:c8d68cbd1ae2 162 void Ball::right_bounce(Coord start, Coord end) //checks if there is a collision with a right wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 163 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 12:7f7fadb5c106 164 if(_x_pos + _x_vel*10.0f/_frame_rate + 2 > start.x && _x_pos + _x_vel*10.0f/_frame_rate < start.x + 5 && _y_pos >= start.y && _y_pos + 1 <= end.y && _x_vel > 0){ //right wall x + 1
ellisbhastroud 12:7f7fadb5c106 165 _x_pos = start.x - 1;
ellisbhastroud 16:c8d68cbd1ae2 166 _x_vel = -_x_vel; //right wall bounce causes x velocity to change sign
ellisbhastroud 14:08ac9aaa34c3 167 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 168 }
ellisbhastroud 12:7f7fadb5c106 169 }
ellisbhastroud 12:7f7fadb5c106 170
ellisbhastroud 16:c8d68cbd1ae2 171 void Ball::top_bounce(Coord start, Coord end) //checks if there is a collision with a top wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 172 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 12:7f7fadb5c106 173 if(_y_pos + _y_vel*10.0f/_frame_rate - 1 < start.y && _y_pos + _y_vel*10.0f/_frame_rate > start.y - 5 && _x_pos >= start.x && _x_pos + 1 <= end.x && _y_vel < 0){ //top wall y -1
ellisbhastroud 12:7f7fadb5c106 174 _y_pos = start.y + 1;
ellisbhastroud 16:c8d68cbd1ae2 175 _y_vel = -_y_vel; //top wall bounce causes y velocity to change sign
ellisbhastroud 14:08ac9aaa34c3 176 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 177 }
ellisbhastroud 12:7f7fadb5c106 178 }
ellisbhastroud 12:7f7fadb5c106 179
ellisbhastroud 16:c8d68cbd1ae2 180 void Ball::bottom_bounce(Coord start, Coord end) //checks if there is a collision with a bottom wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 181 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 12:7f7fadb5c106 182 if(_y_pos + _y_vel*10.0f/_frame_rate + 2 > start.y && _y_pos + _y_vel*10.0f/_frame_rate < start.y + 5 && _x_pos >= start.x && _x_pos + 1 <= end.x && _y_vel > 0){ //bottom wall
ellisbhastroud 12:7f7fadb5c106 183 _y_pos = start.y - 1;
ellisbhastroud 16:c8d68cbd1ae2 184 _y_vel = -_y_vel; //bottom wall bounce causes y velocity to change sign
ellisbhastroud 14:08ac9aaa34c3 185 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 186 }
ellisbhastroud 12:7f7fadb5c106 187 }
ellisbhastroud 12:7f7fadb5c106 188
ellisbhastroud 16:c8d68cbd1ae2 189 void Ball::bottom_left_bounce(Coord start, Coord end) //checks if there is a collision with a bottom left wall using coordinates and bounces accordingly
ellisbhastroud 12:7f7fadb5c106 190 {
ellisbhastroud 14:08ac9aaa34c3 191 if((_y_pos + _y_vel*10.0f/_frame_rate + 1) > (_x_pos + _x_vel*10.0f/_frame_rate - 1) + (start.y-start.x) && //bottom left bounce conditions
ellisbhastroud 14:08ac9aaa34c3 192 (_x_pos + _x_vel*10.0f/_frame_rate - 1) >= start.x && (_x_pos + _x_vel*10.0f/_frame_rate - 1) <= end.x &&
ellisbhastroud 14:08ac9aaa34c3 193 (_y_pos + _y_vel*10.0f/_frame_rate + 1) >= start.y && (_y_pos + _y_vel*10.0f/_frame_rate + 1) <= end.y ) {
ellisbhastroud 12:7f7fadb5c106 194 swap(_x_vel, _y_vel); //reflects from wall with velocity directions swapped
ellisbhastroud 14:08ac9aaa34c3 195 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 196 }
ellisbhastroud 12:7f7fadb5c106 197 }
ellisbhastroud 12:7f7fadb5c106 198
ellisbhastroud 16:c8d68cbd1ae2 199 void Ball::bottom_right_bounce(Coord start, Coord end) //checks if there is a collision with a bottom right wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 200 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 14:08ac9aaa34c3 201 if((_x_pos + _x_vel*10.0f/_frame_rate + 1) > -(_y_pos + _y_vel*10.0f/_frame_rate + 1) + (start.x+start.y) //bottom right bounce conditions
ellisbhastroud 16:c8d68cbd1ae2 202 && (_x_pos + _x_vel*10.0f/_frame_rate + 1) >= start.x - 1 && (_x_pos + _x_vel*10.0f/_frame_rate + 1) <= end.x + 1
ellisbhastroud 16:c8d68cbd1ae2 203 && (_y_pos + _y_vel*10.0f/_frame_rate + 1) >= end.y - 1 && (_y_pos + _y_vel*10.0f/_frame_rate + 1) <= start.y + 1) {
ellisbhastroud 12:7f7fadb5c106 204
ellisbhastroud 16:c8d68cbd1ae2 205 _x_vel = -_x_vel; //negative wall causes both velocities to change sign then swap
ellisbhastroud 12:7f7fadb5c106 206 _y_vel = -_y_vel;
ellisbhastroud 12:7f7fadb5c106 207 swap(_x_vel, _y_vel); //reflects from wall with velocity directions swapped
ellisbhastroud 14:08ac9aaa34c3 208 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 209 }
ellisbhastroud 12:7f7fadb5c106 210 }
ellisbhastroud 12:7f7fadb5c106 211
ellisbhastroud 16:c8d68cbd1ae2 212 void Ball::top_left_bounce(Coord start, Coord end) //checks if there is a collision with a top left wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 213 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 14:08ac9aaa34c3 214 if((_x_pos + _x_vel*10.0f/_frame_rate - 1) < -(_y_pos + _y_vel*10.0f/_frame_rate + 1) + (start.x+start.y) //top left bounce conditions
ellisbhastroud 16:c8d68cbd1ae2 215 && (_x_pos + _x_vel*10.0f/_frame_rate - 1) >= start.x - 1&& (_x_pos + _x_vel*10.0f/_frame_rate - 1) <= end.x + 1
ellisbhastroud 16:c8d68cbd1ae2 216 && (_y_pos + _y_vel*10.0f/_frame_rate + 1) >= end.y - 1 && (_y_pos + _y_vel*10.0f/_frame_rate + 1) <= start.y + 1) {
ellisbhastroud 12:7f7fadb5c106 217
ellisbhastroud 16:c8d68cbd1ae2 218 _x_vel = -_x_vel; //negative wall causes both velocities to change sign then swap
ellisbhastroud 12:7f7fadb5c106 219 _y_vel = -_y_vel;
ellisbhastroud 12:7f7fadb5c106 220 swap(_x_vel, _y_vel); //reflects from wall with velocity directions swapped
ellisbhastroud 14:08ac9aaa34c3 221 _bounce_flag = true;
ellisbhastroud 12:7f7fadb5c106 222 }
ellisbhastroud 12:7f7fadb5c106 223 }
ellisbhastroud 12:7f7fadb5c106 224
ellisbhastroud 16:c8d68cbd1ae2 225 void Ball::top_right_bounce(Coord start, Coord end) //checks if there is a collision with a top right wall using coordinates and bounces accordingly
ellisbhastroud 16:c8d68cbd1ae2 226 { //if statement bounce conditions use coordinates from function and determine whether the ball will pass line in next frame - if so then bounces
ellisbhastroud 14:08ac9aaa34c3 227 if((_y_pos + _y_vel*10.0f/_frame_rate - 1) < (_x_pos + _x_vel*10.0f/_frame_rate + 1) + (start.y-start.x) //top right bounce conditions
ellisbhastroud 16:c8d68cbd1ae2 228 && (_x_pos + _x_vel*10.0f/_frame_rate + 1) >= start.x - 1 && (_x_pos + _x_vel*10.0f/_frame_rate + 1) <= end.x + 1
ellisbhastroud 16:c8d68cbd1ae2 229 && (_y_pos + _y_vel*10.0f/_frame_rate - 1) >= start.y - 1 && (_y_pos + _y_vel*10.0f/_frame_rate - 1) <= end.y + 1) {
ellisbhastroud 12:7f7fadb5c106 230
ellisbhastroud 12:7f7fadb5c106 231 swap(_x_vel, _y_vel); //reflects from wall with velocity directions swapped
ellisbhastroud 16:c8d68cbd1ae2 232 _bounce_flag = true; //used to trigger beep
ellisbhastroud 12:7f7fadb5c106 233 }
ellisbhastroud 12:7f7fadb5c106 234 }