My take on the classic Pac man game. Using mbed LPC 1768 and Nokia 5110 LCD Analog joystick used to control direction
Dependencies: N5110 PowerControl mbed
main.cpp@3:83c1d9cd97f1, 2015-04-21 (annotated)
- Committer:
- el13ks
- Date:
- Tue Apr 21 11:57:09 2015 +0000
- Revision:
- 3:83c1d9cd97f1
- Parent:
- 2:830feffe8462
- Child:
- 4:75c7277a1b88
Pacman V1.2 Obstacles Now Working ;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
el13ks | 0:1c3f3fe862f2 | 1 | #include "mbed.h" |
el13ks | 0:1c3f3fe862f2 | 2 | #include "N5110.h" |
el13ks | 1:98cc4f4a20dc | 3 | #define DIRECTION_TOLERANCE 0.05// Tolerance of Joystick |
el13ks | 3:83c1d9cd97f1 | 4 | |
el13ks | 0:1c3f3fe862f2 | 5 | BusOut myleds(p24,p23,p22); //External LEDS |
el13ks | 0:1c3f3fe862f2 | 6 | InterruptIn StartButton(p18);//Start button |
el13ks | 0:1c3f3fe862f2 | 7 | N5110 lcd(p7,p8,p9,p10,p11,p13,p26); //PWR, SCE, RST, DC, MOSI, SCLK, LED |
el13ks | 0:1c3f3fe862f2 | 8 | AnalogIn Bright(p20);//Pot to adjust brightness |
el13ks | 0:1c3f3fe862f2 | 9 | Ticker timer; //Create ticker object |
el13ks | 0:1c3f3fe862f2 | 10 | DigitalIn button(p17);// Joystick Button |
el13ks | 0:1c3f3fe862f2 | 11 | AnalogIn xPot(p15);// Joystick x-direction |
el13ks | 0:1c3f3fe862f2 | 12 | AnalogIn yPot(p16);// Joystick y-direction |
el13ks | 3:83c1d9cd97f1 | 13 | int i=3; // Pacman's starting position |
el13ks | 3:83c1d9cd97f1 | 14 | int j = 5; |
el13ks | 3:83c1d9cd97f1 | 15 | |
el13ks | 0:1c3f3fe862f2 | 16 | Ticker pollJoystick; // timer to regularly read the joystick |
el13ks | 1:98cc4f4a20dc | 17 | int next[84][48]= {0}; |
el13ks | 2:830feffe8462 | 18 | int coinflag = 1; |
el13ks | 3:83c1d9cd97f1 | 19 | int coinflag2 = 1; |
el13ks | 1:98cc4f4a20dc | 20 | |
el13ks | 3:83c1d9cd97f1 | 21 | bool canRight = 1; |
el13ks | 1:98cc4f4a20dc | 22 | |
el13ks | 0:1c3f3fe862f2 | 23 | enum DirectionName { // create enumerated type (0,1,2,3 etc. for direction) |
el13ks | 0:1c3f3fe862f2 | 24 | UP, // could be extended for diagonals etc. |
el13ks | 0:1c3f3fe862f2 | 25 | DOWN, |
el13ks | 0:1c3f3fe862f2 | 26 | LEFT, |
el13ks | 0:1c3f3fe862f2 | 27 | RIGHT, |
el13ks | 0:1c3f3fe862f2 | 28 | CENTRE, |
el13ks | 0:1c3f3fe862f2 | 29 | UNKNOWN |
el13ks | 0:1c3f3fe862f2 | 30 | }; |
el13ks | 0:1c3f3fe862f2 | 31 | |
el13ks | 0:1c3f3fe862f2 | 32 | typedef struct JoyStick Joystick; // struct for Joystick |
el13ks | 0:1c3f3fe862f2 | 33 | struct JoyStick { |
el13ks | 0:1c3f3fe862f2 | 34 | float x; // current x value |
el13ks | 0:1c3f3fe862f2 | 35 | float x0; // 'centred' x value |
el13ks | 0:1c3f3fe862f2 | 36 | float y; // current y value |
el13ks | 0:1c3f3fe862f2 | 37 | float y0; // 'centred' y value |
el13ks | 0:1c3f3fe862f2 | 38 | int button; // button state (assume pull-down used, so 1 = pressed, 0 = unpressed) |
el13ks | 0:1c3f3fe862f2 | 39 | DirectionName direction; // current direction |
el13ks | 0:1c3f3fe862f2 | 40 | }; |
el13ks | 0:1c3f3fe862f2 | 41 | |
el13ks | 0:1c3f3fe862f2 | 42 | Joystick joystick; // create struct variable |
el13ks | 0:1c3f3fe862f2 | 43 | |
el13ks | 0:1c3f3fe862f2 | 44 | |
el13ks | 0:1c3f3fe862f2 | 45 | void calibrateJoystick() // read default positions of the joystick to calibrate later readings |
el13ks | 0:1c3f3fe862f2 | 46 | { |
el13ks | 0:1c3f3fe862f2 | 47 | button.mode(PullDown); |
el13ks | 0:1c3f3fe862f2 | 48 | // must not move during calibration |
el13ks | 0:1c3f3fe862f2 | 49 | joystick.x0 = xPot; // initial positions in the range 0.0 to 1.0 (0.5 if centred exactly) |
el13ks | 0:1c3f3fe862f2 | 50 | joystick.y0 = yPot; |
el13ks | 0:1c3f3fe862f2 | 51 | } |
el13ks | 0:1c3f3fe862f2 | 52 | |
el13ks | 0:1c3f3fe862f2 | 53 | void updateJoystick() |
el13ks | 0:1c3f3fe862f2 | 54 | { |
el13ks | 0:1c3f3fe862f2 | 55 | |
el13ks | 0:1c3f3fe862f2 | 56 | joystick.x = xPot - joystick.x0; // read current joystick values relative to calibrated values (in range -0.5 to 0.5, 0.0 is centred) |
el13ks | 0:1c3f3fe862f2 | 57 | joystick.y = yPot - joystick.y0; |
el13ks | 0:1c3f3fe862f2 | 58 | joystick.button = button; // read button state |
el13ks | 0:1c3f3fe862f2 | 59 | |
el13ks | 0:1c3f3fe862f2 | 60 | // calculate direction depending on x,y values |
el13ks | 0:1c3f3fe862f2 | 61 | // tolerance allows a little lee-way in case joystick not exactly in the stated direction |
el13ks | 0:1c3f3fe862f2 | 62 | if ( fabs(joystick.y) < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) { |
el13ks | 0:1c3f3fe862f2 | 63 | joystick.direction = CENTRE; |
el13ks | 0:1c3f3fe862f2 | 64 | } else if ( joystick.y > DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) { |
el13ks | 0:1c3f3fe862f2 | 65 | joystick.direction = UP; |
el13ks | 0:1c3f3fe862f2 | 66 | } else if ( joystick.y < DIRECTION_TOLERANCE && fabs(joystick.x) < DIRECTION_TOLERANCE) { |
el13ks | 0:1c3f3fe862f2 | 67 | joystick.direction = DOWN; |
el13ks | 0:1c3f3fe862f2 | 68 | } else if ( joystick.x > DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) { |
el13ks | 0:1c3f3fe862f2 | 69 | joystick.direction = RIGHT; |
el13ks | 0:1c3f3fe862f2 | 70 | } else if ( joystick.x < DIRECTION_TOLERANCE && fabs(joystick.y) < DIRECTION_TOLERANCE) { |
el13ks | 0:1c3f3fe862f2 | 71 | joystick.direction = LEFT; |
el13ks | 0:1c3f3fe862f2 | 72 | } else { |
el13ks | 0:1c3f3fe862f2 | 73 | joystick.direction = UNKNOWN; |
el13ks | 0:1c3f3fe862f2 | 74 | } |
el13ks | 0:1c3f3fe862f2 | 75 | |
el13ks | 0:1c3f3fe862f2 | 76 | |
el13ks | 2:830feffe8462 | 77 | |
el13ks | 0:1c3f3fe862f2 | 78 | } |
el13ks | 0:1c3f3fe862f2 | 79 | |
el13ks | 3:83c1d9cd97f1 | 80 | void drawMap()// |
el13ks | 3:83c1d9cd97f1 | 81 | { |
el13ks | 0:1c3f3fe862f2 | 82 | |
el13ks | 3:83c1d9cd97f1 | 83 | lcd.drawRect(41,0,2,10,1); |
el13ks | 1:98cc4f4a20dc | 84 | |
el13ks | 1:98cc4f4a20dc | 85 | |
el13ks | 1:98cc4f4a20dc | 86 | |
el13ks | 0:1c3f3fe862f2 | 87 | } |
el13ks | 0:1c3f3fe862f2 | 88 | |
el13ks | 1:98cc4f4a20dc | 89 | void Getpixels() |
el13ks | 0:1c3f3fe862f2 | 90 | { |
el13ks | 3:83c1d9cd97f1 | 91 | |
el13ks | 1:98cc4f4a20dc | 92 | |
el13ks | 1:98cc4f4a20dc | 93 | int n = 0; |
el13ks | 1:98cc4f4a20dc | 94 | |
el13ks | 3:83c1d9cd97f1 | 95 | |
el13ks | 3:83c1d9cd97f1 | 96 | if(lcd.getPixel (i+4,j)) |
el13ks | 1:98cc4f4a20dc | 97 | n++; |
el13ks | 3:83c1d9cd97f1 | 98 | if(lcd.getPixel (i+5,j)) |
el13ks | 1:98cc4f4a20dc | 99 | n++; |
el13ks | 1:98cc4f4a20dc | 100 | |
el13ks | 3:83c1d9cd97f1 | 101 | if (n==2){ |
el13ks | 3:83c1d9cd97f1 | 102 | i--; |
el13ks | 3:83c1d9cd97f1 | 103 | |
el13ks | 3:83c1d9cd97f1 | 104 | } |
el13ks | 3:83c1d9cd97f1 | 105 | |
el13ks | 1:98cc4f4a20dc | 106 | |
el13ks | 1:98cc4f4a20dc | 107 | |
el13ks | 1:98cc4f4a20dc | 108 | } |
el13ks | 3:83c1d9cd97f1 | 109 | |
el13ks | 3:83c1d9cd97f1 | 110 | |
el13ks | 3:83c1d9cd97f1 | 111 | |
el13ks | 3:83c1d9cd97f1 | 112 | |
el13ks | 3:83c1d9cd97f1 | 113 | |
el13ks | 3:83c1d9cd97f1 | 114 | void Joystickcheck() |
el13ks | 3:83c1d9cd97f1 | 115 | { |
el13ks | 3:83c1d9cd97f1 | 116 | if (joystick.direction == UP) { |
el13ks | 3:83c1d9cd97f1 | 117 | j--; |
el13ks | 3:83c1d9cd97f1 | 118 | } |
el13ks | 3:83c1d9cd97f1 | 119 | if (joystick.direction == DOWN) { |
el13ks | 3:83c1d9cd97f1 | 120 | j++; |
el13ks | 3:83c1d9cd97f1 | 121 | } |
el13ks | 3:83c1d9cd97f1 | 122 | if (joystick.direction == LEFT) { |
el13ks | 3:83c1d9cd97f1 | 123 | i--; |
el13ks | 3:83c1d9cd97f1 | 124 | } |
el13ks | 3:83c1d9cd97f1 | 125 | if ((joystick.direction == RIGHT)&canRight) { |
el13ks | 3:83c1d9cd97f1 | 126 | i++; |
el13ks | 3:83c1d9cd97f1 | 127 | } |
el13ks | 3:83c1d9cd97f1 | 128 | |
el13ks | 3:83c1d9cd97f1 | 129 | } |
el13ks | 3:83c1d9cd97f1 | 130 | |
el13ks | 3:83c1d9cd97f1 | 131 | void Boundarycheck() |
el13ks | 3:83c1d9cd97f1 | 132 | { |
el13ks | 3:83c1d9cd97f1 | 133 | if (i<3) { |
el13ks | 3:83c1d9cd97f1 | 134 | i=3; |
el13ks | 3:83c1d9cd97f1 | 135 | } |
el13ks | 3:83c1d9cd97f1 | 136 | if (j<3) { |
el13ks | 3:83c1d9cd97f1 | 137 | j=3; |
el13ks | 3:83c1d9cd97f1 | 138 | } |
el13ks | 3:83c1d9cd97f1 | 139 | if (j>44) { |
el13ks | 3:83c1d9cd97f1 | 140 | j=44; |
el13ks | 3:83c1d9cd97f1 | 141 | } |
el13ks | 3:83c1d9cd97f1 | 142 | if (i>80) { |
el13ks | 3:83c1d9cd97f1 | 143 | i=80; |
el13ks | 1:98cc4f4a20dc | 144 | } |
el13ks | 0:1c3f3fe862f2 | 145 | } |
el13ks | 0:1c3f3fe862f2 | 146 | |
el13ks | 3:83c1d9cd97f1 | 147 | |
el13ks | 0:1c3f3fe862f2 | 148 | |
el13ks | 3:83c1d9cd97f1 | 149 | |
el13ks | 3:83c1d9cd97f1 | 150 | |
el13ks | 0:1c3f3fe862f2 | 151 | |
el13ks | 0:1c3f3fe862f2 | 152 | int main() |
el13ks | 0:1c3f3fe862f2 | 153 | { |
el13ks | 3:83c1d9cd97f1 | 154 | |
el13ks | 0:1c3f3fe862f2 | 155 | lcd.init(); |
el13ks | 0:1c3f3fe862f2 | 156 | calibrateJoystick(); // get centred values of joystick |
el13ks | 1:98cc4f4a20dc | 157 | pollJoystick.attach(&updateJoystick,1.0/10.0); // read joystick 10 times per second |
el13ks | 0:1c3f3fe862f2 | 158 | |
el13ks | 0:1c3f3fe862f2 | 159 | while(1) { |
el13ks | 0:1c3f3fe862f2 | 160 | lcd.clear(); |
el13ks | 3:83c1d9cd97f1 | 161 | //drawMap1(); |
el13ks | 3:83c1d9cd97f1 | 162 | lcd.drawCircle(i,j,3,1); //x-coordinate of centre,y-coordinate of centre,radius ;0 transparent (w/outline), 1 filled black, 2 filled white (wo/outline) |
el13ks | 3:83c1d9cd97f1 | 163 | drawMap(); |
el13ks | 3:83c1d9cd97f1 | 164 | Getpixels(); |
el13ks | 3:83c1d9cd97f1 | 165 | if (coinflag) { |
el13ks | 3:83c1d9cd97f1 | 166 | lcd.drawCircle(20,3,2,0); |
el13ks | 0:1c3f3fe862f2 | 167 | } |
el13ks | 3:83c1d9cd97f1 | 168 | if (coinflag2) { |
el13ks | 3:83c1d9cd97f1 | 169 | lcd.drawCircle(30,3,2,0); |
el13ks | 0:1c3f3fe862f2 | 170 | } |
el13ks | 3:83c1d9cd97f1 | 171 | |
el13ks | 3:83c1d9cd97f1 | 172 | Joystickcheck(); |
el13ks | 3:83c1d9cd97f1 | 173 | Boundarycheck(); |
el13ks | 2:830feffe8462 | 174 | if (i==20) { |
el13ks | 3:83c1d9cd97f1 | 175 | if(j==3) { |
el13ks | 2:830feffe8462 | 176 | coinflag=0; |
el13ks | 2:830feffe8462 | 177 | } |
el13ks | 2:830feffe8462 | 178 | } |
el13ks | 3:83c1d9cd97f1 | 179 | if (i==30) { |
el13ks | 3:83c1d9cd97f1 | 180 | if(j==3) { |
el13ks | 3:83c1d9cd97f1 | 181 | coinflag2=0; |
el13ks | 2:830feffe8462 | 182 | } |
el13ks | 3:83c1d9cd97f1 | 183 | } |
el13ks | 3:83c1d9cd97f1 | 184 | if(coinflag == 0) { |
el13ks | 3:83c1d9cd97f1 | 185 | lcd.clearPixel(20,3); |
el13ks | 3:83c1d9cd97f1 | 186 | } |
el13ks | 3:83c1d9cd97f1 | 187 | if(coinflag2 == 0) { |
el13ks | 3:83c1d9cd97f1 | 188 | lcd.clearPixel(30,3); |
el13ks | 3:83c1d9cd97f1 | 189 | } |
el13ks | 2:830feffe8462 | 190 | |
el13ks | 3:83c1d9cd97f1 | 191 | |
el13ks | 3:83c1d9cd97f1 | 192 | lcd.refresh(); |
el13ks | 0:1c3f3fe862f2 | 193 | } |
el13ks | 1:98cc4f4a20dc | 194 | |
el13ks | 0:1c3f3fe862f2 | 195 | } |
el13ks | 0:1c3f3fe862f2 | 196 | |
el13ks | 0:1c3f3fe862f2 | 197 | |
el13ks | 0:1c3f3fe862f2 | 198 | |
el13ks | 0:1c3f3fe862f2 | 199 | |
el13ks | 0:1c3f3fe862f2 | 200 | |
el13ks | 0:1c3f3fe862f2 | 201 | |
el13ks | 0:1c3f3fe862f2 | 202 | |
el13ks | 0:1c3f3fe862f2 | 203 | |
el13ks | 0:1c3f3fe862f2 | 204 | |
el13ks | 1:98cc4f4a20dc | 205 |