ELEC2645 (2015/16)
/
Flappyball
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main.cpp
00001 #include "main.h" 00002 // this game is similar to flappy bird 00003 // the ball will always drop so player should use joystick up 00004 // if the ball touch the ground or half ball over the highest line, the game will finish 00005 // if the ball touch the line, the game will finish 00006 // press button could stop the game and press again to play 00007 // when the game start, the led will fliker 00008 // when the game finish, the buzzer will sound 00009 int main() 00010 { 00011 // first need to initialise display+ 00012 lcd.init(); 00013 button.fall(&ting); 00014 button.mode(PullDown); 00015 00016 //show the name of this game 00017 lcd.printString("Flappy ball",10,1); //show game name 00018 lcd.printString("YangQing",10,3); //show desgin name 00019 lcd.printString("200986056",10,5); //show student code 00020 00021 wait(0.5); //keep screen 0.5s 00022 lcd.clear(); //clear screen show another screen 00023 00024 //just simulate the loading 00025 lcd.printString("LOADING...",8,2); 00026 char loading [14]; 00027 for (int a = 0; a<=100; a = a+20) { 00028 sprintf(loading,"%d %%",a); 00029 lcd.printString(loading,18,4); 00030 wait(0.5); 00031 } 00032 lcd.clear(); //clear screen show another screen 00033 ticker.attach(&yellow,0.1); //make yellow light work, lip per 0.1s 00034 00035 // normal colour mode back 00036 lcd.normalMode(); 00037 // put LED backlight on 50% 00038 lcd.setBrightness(0.5); 00039 00040 00041 00042 calibrateJoystick(); // get centred values of joystick 00043 pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second 00044 00045 00046 while(1) { 00047 00048 00049 // can directly print strings at specified co-ordinates 00050 if(stop == true) { 00051 00052 if (printFlag ) { // if flag set, clear flag and print joystick values to serial port 00053 printFlag = 0; 00054 00055 // use a random variable to change the height of vartical line. 00056 if ( linex1 <0 ) { 00057 linex1 = 80; // for first line the strat x-axis is 80 00058 liney1 =rand()%48+30;//random value from 30 to 48 00059 } 00060 00061 if ( linex2 <0 ) { 00062 linex2 = 80; // for second line the strat x-axis is 80 00063 liney2 =rand()%48+30;//random value from 30 to 48 00064 } 00065 00066 if ( linex3 <0 ) { 00067 linex3 = 80; // for third line the strat x-axis is 80 00068 liney3 =rand()%48+20;//random value from 20 to 48 00069 } 00070 00071 if ( linex4 <0 ) { 00072 linex4 = 80; // for fourth line the strat x-axis is 80 00073 liney4 =rand()%48+10; //random value from 10 to 48 00074 } 00075 if ( linex5 <0 ) { 00076 linex5 = 81; // for fifth line the strat x-axis is 81 00077 liney5 =rand()%48+10; //random value from 10 to 48 00078 } 00079 00080 // let x variable refuce to make these lines like moving to left 00081 linex1 --; 00082 linex2 --; 00083 linex3 --; 00084 linex4 --; 00085 linex5 --; 00086 lcd.clear(); 00087 00088 // use linex and liney to draw lines 00089 lcd.drawLine(linex1 ,liney1 ,linex1 ,48,1); // draw first line 00090 lcd.drawLine(linex2 ,liney2 ,linex2 ,48,1); // draw second line 00091 lcd.drawLine(linex3 ,liney3 ,linex3 ,48,1); // draw third line 00092 lcd.drawLine(linex4 ,liney4 ,linex4 ,48,1); // draw fourth line 00093 lcd.drawLine(linex5 ,liney5 ,linex5 ,48,1); // draw fifth line 00094 00095 // check joystick direction 00096 if (joystick.direction == UP ) { 00097 d -=1; // let ball move to up 00098 char score [14]; // char score variable 00099 sprintf(score,"%d %",s ); // let score show s vaule 00100 s ++; // s increase 1 00101 touch(); 00102 if (flag ) { 00103 lcd.clear(); //clean screen 00104 lcd.printString("Game over",5,1);//show game over 00105 lcd.printString("Score:",5,4); //show score on screen 00106 lcd.printString(score,45,4); 00107 buzzer.period(0.001); //game over and buzzer work for 0.001 frequency 00108 buzzer = 0.5; //the volume strong 00109 wait(1.0); 00110 break; //game break 00111 } 00112 lcd.drawCircle(c ,d ,4,0); //draw circle 00113 } 00114 00115 if (joystick.direction == DOWN /*&& d > 5*/) { 00116 d +=1; // let ball move down 00117 char score [14]; // char score variable 00118 sprintf(score,"%d %",s ); // let score show s vaule 00119 s ++; // s increase 1 00120 touch(); 00121 if (flag ) { 00122 lcd.clear(); //clean screen 00123 lcd.printString("Game over",5,1);//show game over 00124 lcd.printString("Score:",5,4); //show score on screen 00125 lcd.printString(score,45,4); 00126 buzzer.period(0.001); //game over and buzzer work for 0.001 frequency 00127 buzzer = 0.5; //the volume strong 00128 wait(1.0); 00129 break; //game break 00130 } 00131 lcd.drawCircle(c ,d ,4,0); //draw circle 00132 } 00133 00134 if (joystick.direction == LEFT ) { 00135 c +=1; // let ball move to left 00136 char score [14]; // char score variable 00137 sprintf(score,"%d %",s ); // let score show s vaule 00138 s ++; // s increase 1 00139 touch(); 00140 if (flag ) { 00141 lcd.clear(); //clean screen 00142 lcd.printString("Game over",5,1);//show game over 00143 lcd.printString("Score:",5,4); //show score on screen 00144 lcd.printString(score,45,4); 00145 buzzer.period(0.001); //game over and buzzer work for 0.001 frequency 00146 buzzer = 0.5; //the volume strong 00147 wait(1.0); 00148 break; //game break 00149 } 00150 lcd.drawCircle(c ,d ,4,0); //draw circle 00151 } 00152 00153 if (joystick.direction == RIGHT ) { 00154 c -=1; // let ball move to right 00155 char score [14]; // char score variable 00156 sprintf(score,"%d %",s ); // let score show s vaule 00157 s ++; // s increase 1 00158 touch(); 00159 if (flag ) { 00160 lcd.clear(); //clean screen 00161 lcd.printString("Game over",5,1);//show game over 00162 lcd.printString("Score:",5,4); //show score on screen 00163 lcd.printString(score,45,4); 00164 buzzer.period(0.001); //game over and buzzer work for 0.001 frequency 00165 buzzer = 0.5; //the volume strong 00166 wait(1.0); 00167 break; //game break 00168 } 00169 lcd.drawCircle(c ,d ,4,0); //draw circle 00170 } 00171 00172 if (joystick.direction == CENTRE ) { 00173 d +=1; // make ball always fall down 00174 char score [14]; // char score variable 00175 sprintf(score,"%d %",s ); // let score show s vaule 00176 s ++; // s increase 1 00177 touch(); 00178 if (flag ) { 00179 lcd.clear(); //clean screen 00180 lcd.printString("Game over",5,1);//show game over 00181 lcd.printString("Score:",5,4); //show score on screen 00182 lcd.printString(score,45,4); 00183 buzzer.period(0.001); //game over and buzzer work for 0.001 frequency 00184 buzzer = 0.5; //the volume strong 00185 wait(1.0); 00186 break; //game break 00187 } 00188 lcd.drawCircle(c ,d ,4,0); //draw circle 00189 } 00190 00191 } 00192 lcd.refresh(); 00193 } else { 00194 lcd.clear(); 00195 lcd.printString("Press to play",0,3); //when game stop to show 00196 lcd.refresh(); 00197 } 00198 sleep(); 00199 } 00200 } 00201 00202 00203 00204 void calibrateJoystick() 00205 { 00206 button.mode(PullDown); 00207 // must not move during calibration 00208 joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly) 00209 joystick.y0 = yPot; 00210 } 00211 void updateJoystick() 00212 { 00213 // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred) 00214 joystick.x = xPot - joystick.x0; 00215 joystick.y = yPot - joystick.y0; 00216 // read button state 00217 joystick.button = button; 00218 00219 // calculate direction depending on x,y values 00220 // tolerance allows a little lee-way in case joystick not exactly in the stated direction 00221 if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) { 00222 joystick.direction = CENTRE; 00223 } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) { 00224 joystick.direction = UP; 00225 } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) { 00226 joystick.direction = DOWN; 00227 } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) { 00228 joystick.direction = RIGHT; 00229 } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) { 00230 joystick.direction = LEFT; 00231 } else { 00232 joystick.direction = UNKNOWN; 00233 } 00234 00235 // set flag for printing 00236 printFlag = 1; 00237 } 00238 00239 // this function is to judge whether it touch or mot 00240 void touch() 00241 { 00242 // these information is the condition of judgment 00243 if (lcd.getPixel(c ,d +4)||d +4==47||d ==-4||lcd.getPixel(-4+c ,d )||lcd.getPixel(4+c ,d )||lcd.getPixel(c ,d -4)||lcd.getPixel(c -1,d -4)||lcd.getPixel(c -2,d -4)||lcd.getPixel(c +1,d -3)) { 00244 // flag = 1 means the conduction is achieved 00245 flag =1; 00246 } else { 00247 flag =0; 00248 } 00249 } 00250 00251 void yellow() //the function judge yellow lights lip 00252 { 00253 yellow_led =! yellow_led; 00254 } 00255 00256 void ting() // the function judge tp stop game 00257 { 00258 stop = !stop ; 00259 }
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