Konlatee Sittichaivijit / Mbed 2 deprecated PacManII

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?

UserRevisionLine numberNew 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
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