Dependencies: mbed
Diff: Game/Game.cpp
- Revision:
- 25:467d8fd0fec4
- Parent:
- 24:c110f92fe266
- Child:
- 26:04b2d7742a84
--- a/Game/Game.cpp Mon May 25 13:19:11 2020 +0000
+++ b/Game/Game.cpp Mon May 25 18:25:00 2020 +0000
@@ -1,8 +1,9 @@
#include "Game.h"
+
SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd");
Ticker ticker;
+FILE *fp;
-FILE *fp;
volatile int sound_timer_flag = 0;
volatile int sound_sample = 0;
volatile int level_flag = 1; //initially set
@@ -31,98 +32,96 @@
_shot_y = 0;
//Initialising Highscore
fp = fopen("/sd/highscore.txt", "r"); //check for file
- if (fp == NULL) { // if it can't open the file (file does not exist)
+ if (fp == NULL) { // if it can't open the file (file does not exist)
printf("No exisiting highscore!\n");
set_highscore(0); // initialise highscore to zero
- } else { // if file exists, read highscore and initialise to that value
- fscanf(fp, "%d",&_highscore);
- printf("Initial Highscore found: %d\n",_highscore);
+ } else { // if file exists, read highscore and initialise to that value
+ fscanf(fp, "%d", & _highscore);
+ printf("Initial Highscore found: %d\n", _highscore);
set_highscore(_highscore);
- fclose(fp); // ensure you close the file after reading
- }
+ fclose(fp); // ensure you close the file after reading
+ }
}
void Game::play() {
// if all live are lost game ends
- while(_lives > 0) {
+ while (_lives > 0) {
updateSpeed();
- updateLives();
+ updateLives();
updateLevel();
readInput();
- if(_is_goal) {
- _score++;
- }
- else {
+ if (_is_goal) { _score++; }
+ else {
// ball should not go through obstacle hence y value limited to 21
// this is done after calculations to ensure accurate results
- if(_shot_y >= 9) { _shot_y = 21; }
- if(_shot_y <= 5) {_shot_y = 3; }
- _lives--;
+ if (_shot_y >= 9) { _shot_y = 21; }
+ if (_shot_y <= 5) { _shot_y = 3; }
+ _lives--;
}
- _ball->playShot(_shot_x, _shot_y);
- print_goal_message((int)_is_goal);
+ _ball -> playShot(_shot_x, _shot_y);
+ print_goal_message((int) _is_goal);
}
- if(_score > _highscore) { set_highscore(_score);}
- _pad->leds(0.0); //turn of all leds
+ if (_score > _highscore) { set_highscore(_score); }
+ _pad -> leds(0.0); //turn of all leds
}
void Game::readInput() {
- _pad->reset_buttons(); //forced debounce/reset
+ _pad -> reset_buttons(); //forced debounce/reset
_x_val = 42; //reset x_val
_y_val = 0; //reset y_val
- while(!_pad->A_pressed()) {
+ while (!_pad -> A_pressed()) {
pointer_input();
}
- _pad->reset_buttons(); //forced debounce/reset
- while(!_pad->B_pressed()) {
+ _pad -> reset_buttons(); //forced debounce/reset
+ while (!_pad -> B_pressed()) {
power_meter_input();
}
convert_to_shot_x();
convert_to_shot_y();
- _is_goal = _ball->isGoal(_level, _shot_x, _shot_y);
+ _is_goal = _ball -> isGoal(_level, _shot_x, _shot_y);
//printf("x val = %.2f \n",_x_val);
//printf("shot_x val = %d \n",_shot_x);
//printf("y val = %.2f \n",_y_val);
//printf("shot_y val = %d \n",_shot_y);
}
void Game::updateLives() {
- int val [6] = {0,0,0,0,0,0};
+ int val[6] = {0, 0, 0, 0, 0, 0};
// +1 life if score hits a multiple of 5 provided less than 3 lives left
//update threshold so lives don't increase if score stays same
- if(_score % 5 == 0 && _score != _new_lives_threshold && _lives != 3) {
- _lives++;
+ if (_score % 5 == 0 && _score != _new_lives_threshold && _lives != 3) {
+ _lives++;
_new_lives_threshold = _score;
playGoalSound(4);
}
//printf("Lives = %d \n", _lives);
- switch(_lives){
- case 0:
- break;
- case 1: //red leds only
- val[0] = val[3] = 1;
- break;
- case 2: //red and yellow leds
- val[0] = val[1] = val[3] = val[4] = 1;
- break;
- case 3: //all leds on
- for (int i = 0; i < 6; i++) {val[i] = 1;}
- break;
- default:
- error("Invalid Number of Lives");
- break;
+ switch (_lives) {
+ case 0:
+ break;
+ case 1: //red leds only
+ val[0] = val[3] = 1;
+ break;
+ case 2: //red and yellow leds
+ val[0] = val[1] = val[3] = val[4] = 1;
+ break;
+ case 3: //all leds on
+ for (int i = 0; i < 6; i++) { val[i] = 1; }
+ break;
+ default:
+ error("Invalid Number of Lives");
+ break;
}
updateLeds(val);
}
void Game::updateScore() {
char buffer[12];
- sprintf(buffer,"%d",_score);
- _lcd->printString(buffer,2,5);
+ sprintf(buffer, "%d", _score);
+ _lcd -> printString(buffer, 2, 5);
}
void Game::updateSpeed() {
- if(abs(_speed) <= 3) { // max speed = 3
- if(_score % 3 == 0 && _score != _new_speed_threshold) {
+ if (abs(_speed) <= 3) { // max speed = 3
+ if (_score % 3 == 0 && _score != _new_speed_threshold) {
_speed = abs(_speed) + 0.20f;
//update threshold so speed does not increase if score stays same
- _new_speed_threshold = _score;
+ _new_speed_threshold = _score;
}
}
//printf("speed = %.2f \n", _speed);
@@ -130,137 +129,148 @@
}
void Game::updateLevel() {
_level = random_level_gen(10); //generate random level
- if( level_flag == 1) { //first level is always level 1
+ if (level_flag == 1) { //first level is always level 1
level_flag = 0; //flag always stays 0 after first time
- _level = 1;
- }
- _ball->set_level(_level); //set level
+ _level = 1;
+ }
+ _ball -> set_level(_level); //set level
//printf("Level (in game) = %d \n", _level);
}
-void Game::updateLeds( int val[6]) {
- _pad->led(1,val[0]);
- _pad->led(2,val[1]);
- _pad->led(3,val[2]);
- _pad->led(4,val[3]);
- _pad->led(5,val[4]);
- _pad->led(6,val[5]);
+void Game::updateLeds(int val[6]) {
+ _pad -> led(1, val[0]);
+ _pad -> led(2, val[1]);
+ _pad -> led(3, val[2]);
+ _pad -> led(4, val[3]);
+ _pad -> led(5, val[4]);
+ _pad -> led(6, val[5]);
}
void Game::playGoalSound(int sound) {
sound_sample = 0;
float val = 0.0f;
int NUM_ELEMENTS = 0;
- ticker.attach(&timer_isr,226e-7);
- if(sound == 1) {NUM_ELEMENTS = NUM_ELEMENTS_1;}
- else if(sound == 2) {NUM_ELEMENTS = NUM_ELEMENTS_3;}
- else if(sound == 3) {NUM_ELEMENTS = NUM_ELEMENTS_2;}
- else if(sound == 4) {NUM_ELEMENTS = NUM_ELEMENTS_4;}
- while(sound_sample <= NUM_ELEMENTS) {
+ ticker.attach( & timer_isr, 226e-7);
+ if (sound == 1) { NUM_ELEMENTS = NUM_ELEMENTS_1; }
+ else if (sound == 2) { NUM_ELEMENTS = NUM_ELEMENTS_3; }
+ else if (sound == 3) { NUM_ELEMENTS = NUM_ELEMENTS_2; }
+ else if (sound == 4) { NUM_ELEMENTS = NUM_ELEMENTS_4; }
+ while (sound_sample <= NUM_ELEMENTS) {
if (sound_timer_flag == 1) {
sound_timer_flag = 0;
// convert from 0 to 255 to 0.0 to 1.0
- if(sound == 1) {val = float(miss[sound_sample])/ 256.0f;}
- else if(sound == 2) {val = float(goall[sound_sample])/ 256.0f;}
- else if(sound == 3) {val = float(over[sound_sample])/ 256.0f;}
- else if(sound == 4) {val = float(life[sound_sample])/ 256.0f;}
- _pad->write_dac(val); // write to DAC
+ if (sound == 1) { val = float(miss[sound_sample]) / 256.0f; }
+ else if (sound == 2) { val = float(goall[sound_sample]) / 256.0f; }
+ else if (sound == 3) { val = float(over[sound_sample]) / 256.0f; }
+ else if (sound == 4) { val = float(life[sound_sample]) / 256.0f; }
+ _pad -> write_dac(val); // write to DAC
sound_sample++; // move onto next sample
}
}
}
-void Game::set_highscore (int score) {
- _highscore = score;
+void Game::set_highscore(int score) {
+ _highscore = score;
fp = fopen("/sd/highscore.txt", "w");
- if (fp == NULL) { // if it can't open the file then print error message
+ if (fp == NULL) { // if it can't open the file then print error message
printf("Error! Unable to open file!\n");
- } else { // opened file so can write
+ } else { // opened file so can write
printf("Writing to file highscore: %d", _highscore);
- fprintf(fp, "%d",_highscore); // ensure data type matches
+ fprintf(fp, "%d", _highscore); // ensure data type matches
printf("Done.\n");
- fclose(fp); // ensure you close the file after writing
+ fclose(fp); // ensure you close the file after writing
}
}
int Game::get_highscore() {
fp = fopen("/sd/highscore.txt", "r");
- if (fp == NULL) { // if it can't open the file then print error message
+ if (fp == NULL) { // if it can't open the file then print error message
printf("Error! Unable to open file!\n");
- } else { // opened file so can write
- fscanf(fp, "%d",&_highscore); // ensure data type matches - note address operator (&)
+ } else { // opened file so can write
+ fscanf(fp, "%d", & _highscore); // ensure data type matches - note address operator (&)
//printf("Read %d from file.\n",_highscore);
- fclose(fp); // ensure you close the file after reading
+ fclose(fp); // ensure you close the file after reading
}
int val = _highscore;
- return val;
+ return val;
}
void Game::pointer_input() {
updateScore();
- _ball->displayBackground();
- _ball->drawBall(BALL_INIT_X, BALL_INIT_Y, 6);
+ _ball -> displayBackground();
+ _ball -> drawBall(BALL_INIT_X, BALL_INIT_Y, 6);
//draw aim pointer
- _lcd->drawLine(WIDTH / 2 - 5, 41, _x_val, HEIGHT / 2 + 7, 1);//left side
- _lcd->drawLine(WIDTH / 2 + 5, 41, _x_val, HEIGHT / 2 + 7, 1);//right side
- _lcd->drawLine(WIDTH / 2 + 5, 41, WIDTH / 2 - 5, 41, 1); //base
+ _lcd -> drawLine(WIDTH / 2 - 5, 41, _x_val, HEIGHT / 2 + 7, 1); //left side
+ _lcd -> drawLine(WIDTH / 2 + 5, 41, _x_val, HEIGHT / 2 + 7, 1); //right side
+ _lcd -> drawLine(WIDTH / 2 + 5, 41, WIDTH / 2 - 5, 41, 1); //base
_x_val += _speed;
//printf("dir = %d \n", _speed);
- if((int)_x_val >= 70) { _speed = (-1 * _speed); }
+ if ((int) _x_val >= 70) {
+ _speed = (-1 * _speed);
+ }
//pointer points out of screen i.e. 70=84 therefore, switch direction
//value found through trial and error using print statement
- else if((int)_x_val <= 12) { _speed = abs(_speed); }
- _lcd->refresh();
- _lcd->clear();
+ else if ((int) _x_val <= 12) {
+ _speed = abs(_speed);
+ }
+ _lcd -> refresh();
+ _lcd -> clear();
wait(0.01);
}
void Game::power_meter_input() {
updateScore();
- _ball->displayBackground();
- _ball->drawBall(BALL_INIT_X, BALL_INIT_Y, 6);
+ _ball -> displayBackground();
+ _ball -> drawBall(BALL_INIT_X, BALL_INIT_Y, 6);
//keep direction of pointer
- _lcd->drawLine(WIDTH / 2 - 5, 41, _x_val, HEIGHT / 2 + 7, 1);
- _lcd->drawLine(WIDTH / 2 + 5, 41, _x_val, HEIGHT / 2 + 7, 1);
- _lcd->drawLine(WIDTH / 2 + 5, 41, WIDTH / 2 - 5, 41, 1);
+ _lcd -> drawLine(WIDTH / 2 - 5, 41, _x_val, HEIGHT / 2 + 7, 1);
+ _lcd -> drawLine(WIDTH / 2 + 5, 41, _x_val, HEIGHT / 2 + 7, 1);
+ _lcd -> drawLine(WIDTH / 2 + 5, 41, WIDTH / 2 - 5, 41, 1);
//fill and empty power meter
- _lcd->drawRect(77, 27, 6, _y_val, FILL_BLACK);
- _y_val += _speed/2;
- if((int)_y_val >= 20) { _speed = (-1 * _speed); } //power meter full
- else if((int)_y_val <= 0) { _speed = abs(_speed); } // power meter empty
- _lcd->refresh();
- _lcd->clear();
+ _lcd -> drawRect(77, 27, 6, _y_val, FILL_BLACK);
+ _y_val += _speed / 2;
+ if ((int) _y_val >= 20) {
+ _speed = (-1 * _speed);
+ } //power meter full
+ else if ((int) _y_val <= 0) {
+ _speed = abs(_speed);
+ } // power meter empty
+ _lcd -> refresh();
+ _lcd -> clear();
wait(0.01);
}
void Game::convert_to_shot_x() {
//convert from range 12-70 (range of pointer) to 0-84 (range of screen)
- _shot_x = ((((int)_x_val - 12) * (84)) / (70 - 12));
+ _shot_x = ((((int) _x_val - 12) * (84)) / (70 - 12));
//ball misses goal completely
- if(_shot_x <=7) { _shot_x = 0;}
- else if(_shot_x >=77) { _shot_x = 84;}
+ if (_shot_x <= 7) {
+ _shot_x = 0;
+ } else if (_shot_x >= 77) {
+ _shot_x = 84;
+ }
}
void Game::convert_to_shot_y() {
- _shot_y = ((((int)_y_val) * (24)) / (20));
- if (_shot_y >= 19) {_shot_y = 19; }//shot is low, but must enter goal
+ _shot_y = ((((int) _y_val) * (24)) / (20));
+ if (_shot_y >= 19) {
+ _shot_y = 19;
+ } //shot is low, but must enter goal
}
int Game::random_level_gen(int limit) {
- int number = (rand() % limit) + 1; //random level between 1-10
+ int number = (rand() % limit) + 1; //random level between 1-limit
return number;
}
void Game::print_goal_message(int n) {
- _ball->displayBackground();
- _lcd->drawRect(0,14,84,11,FILL_WHITE);//white background
- _lcd->drawRect(0,14,84,11,FILL_TRANSPARENT);//black outline
-
- switch(n) {
- case 0:
- _lcd->printString("MISS!",30,2);
- break;
- case 1:
- _lcd->printString("GOAL!",30,2);
- break;
- }
- _lcd->refresh();
+ _ball -> displayBackground();
+ _lcd -> drawRect(0, 14, 84, 11, FILL_WHITE); //white background
+ _lcd -> drawRect(0, 14, 84, 11, FILL_TRANSPARENT); //black outline
+
+ switch (n) {
+ case 0:
+ _lcd -> printString("MISS!", 30, 2);
+ break;
+ case 1:
+ _lcd -> printString("GOAL!", 30, 2);
+ break;
+ }
+ _lcd -> refresh();
wait(0.5);
- playGoalSound((int)_is_goal + 1);
- wait(1);
+ playGoalSound((int) _is_goal + 1);
+ wait(1);
}
void timer_isr() {
sound_timer_flag = 1; // set flag in the isr
-}
-
-
+}
\ No newline at end of file