ds_nokia_unlock pattern

More info at my blog: asselinpaul.posterous.com

#include "PCD8544.h"

int y1 = A0;
int x2 = A1;
int y2 = A2;
int x1 = A3;

boolean point1;
boolean point2;
boolean point3;
boolean point4;
boolean point5;

boolean unlocked;

int i=0;


// pin 7 - Serial clock out (SCLK)
// pin 6 - Serial data out (DIN)
// pin 5 - Data/Command select (D/C)
// pin 4 - LCD chip select (CS)
// pin 3 - LCD reset (RST)
PCD8544 nokia = PCD8544(7, 6, 5, 4, 3);

// a bitmap of a 16x16 fruit icon
static unsigned char __attribute__ ((progmem)) logo16_glcd_bmp[]={
0x30, 0xf0, 0xf0, 0xf0, 0xf0, 0x30, 0xf8, 0xbe, 0x9f, 0xff, 0xf8, 0xc0, 0xc0, 0xc0, 0x80, 0x00,
0x20, 0x3c, 0x3f, 0x3f, 0x1f, 0x19, 0x1f, 0x7b, 0xfb, 0xfe, 0xfe, 0x07, 0x07, 0x07, 0x03, 0x00, };
#define LOGO16_GLCD_HEIGHT 16
#define LOGO16_GLCD_WIDTH  16

void setup(void) {

pinMode(11, OUTPUT);
digitalWrite(11, HIGH);


  nokia.init();
  // you can change the contrast around to adapt the display
  // for the best viewing!
  nokia.setContrast(50);
  // turn all the pixels on (a handy test)
  nokia.command(PCD8544_DISPLAYCONTROL | PCD8544_DISPLAYALLON);
  delay(500);
  // back to normal
  nokia.command(PCD8544_DISPLAYCONTROL | PCD8544_DISPLAYNORMAL);

}

int readX(){
  pinMode(y1, INPUT);
  pinMode(x2, OUTPUT);
  pinMode(y2, INPUT);
  pinMode(x1, OUTPUT);

  digitalWrite(x2, LOW);
  digitalWrite(x1, HIGH);

  delay(5); //pause to allow lines to power up

  return analogRead(y1);
  }

  int readY(){

  pinMode(y1, OUTPUT);
  pinMode(x2, INPUT);
  pinMode(y2, OUTPUT);
  pinMode(x1, INPUT);

  digitalWrite(y1, LOW);
  digitalWrite(y2, HIGH);

  delay(5); //pause to allow lines to power up

  return analogRead(x2);
}

void loop (void) {



  int x = readX();
  int y = readY();

 nokia.setCursor(0, 0);
  nokia.print("Draw unlock");
  nokia.setCursor(0, 10);
  nokia.print("Pattern");
  nokia.display();

if(x <= 970 & x >= 870 & y <= 250 & y >= 150 ){
point1 = true;
nokia.setCursor(0,25);
nokia.print("Goto point 2");

   }

if(point1 == true){
 i++;
 nokia.setCursor(0,40);
 nokia.print(i);
}

if(point1 == true & x <= 200 & x >= 90 & y <= 930 & y >= 830){
  point2 = true;
 nokia.setCursor(0,25);
 nokia.print("Goto point 3");
}

if(point2 == true & x <= 165 & x >= 90 & y <= 250 & y >= 120){
  point3 = true;
 nokia.setCursor(0,25);
 nokia.print("Goto point 4");
}

if(point3 == true & x <= 999 & x >= 865 & y <= 950 & y >= 800){
  point4 = true;
 nokia.setCursor(0,25);
 nokia.print("Goto point 5");
}

if(point4 == true & x <= 970 & x >= 870 & y <= 250 & y >= 150){
  point5 = true;
  unlocked = true;
  point1 = false;
 nokia.clear();
 nokia.setCursor(0,25);
 nokia.print("Unlocked        ");

}

if(i >= 150){
 point1 = false;
 point2 = false;
 point3 = false;
 point4 = false;
 point5 = false;

  nokia.setCursor(0,25);
 nokia.print("Too slow!      ");
}

}