Touchpad puzzle game
Page last updated 27 Mar 2015, by 
Zhi Feng.
56
replies
Zhi Feng.
56
replies
Description
This is a simple puzzle game that is constructed by a LCD and a touch pad controller.Once you feel bored when you are taking trolly from west campus to east campus, when you taking subway to your home, this is a good choice. The secret to win the game is depended on how fast your brain to process the image showed on the screen and send command to your finger to take the action precisely. After you keep playing this game for short period of time, you will find out that your responding time is getting much faster, and your brain is running faster and better.
How to play
Touch twice on the keypad with a circle to make it disappear, and touch once on the keypad with a filed circle to make it disappera. When all the circles dis appear, then the screen displays:"You win!! Reset the game." And a new pattern shows on the uLCD.
Component
1. LCD
A LCD display is used to show the circles that appear and disappear on the screen.
2. Touchpad
A fast responding touchpad is used to let users to kill the circles that appear on the LCD screen. How good you can perform in the game is depends on how fast your finger hit the right position on the touchpad.
Video
Code
Lab4_test
#include <mbed.h>
#include <mpr121.h> // Thanks to Anthony Buckton
#include "uLCD_4DGL.h"
uLCD_4DGL uLCD(p28,p27,p29);
// Create the interrupt receiver object on pin 26
InterruptIn interrupt(p26);
// Setup the i2c bus on pins 9 and 10
I2C i2c(p9, p10);
// Setup the Mpr121:
// constructor(i2c object, i2c address of the mpr121)
Mpr121 mpr121(&i2c, Mpr121::ADD_VSS);
int on [9] = {0,0,0,0,0,0,0,0,0};
int key;
int radius = 15;
int initpos = 23; // Initial x and y shift from the edge of the display
int shift = 40; // Space in between each circle
// Function to invert any specified circle
void invert(int on [9], int circleN) {
switch (circleN) {
case 1:
if (on[0] == 0) { // If circle 1 is off then Fill 1st Circle
uLCD.filled_circle(initpos, initpos, radius, BLACK); // Fill 1st Circle
on[0] = 1; // Then change status of circle 1 to on
}
else if (on[0] == 1) { // If circle 1 is on then erase 1st circle
uLCD.filled_circle(initpos, initpos, radius, WHITE);
uLCD.circle(initpos, initpos, radius, BLACK); // Erase 1st Circle
on[0] = 0;
}
break;
case 2:
if (on[1] == 0) {
uLCD.filled_circle(initpos + shift, initpos, radius, BLACK); // Fill 2nd Circle
on[1] = 1;
}
else if (on[1] == 1) {
uLCD.filled_circle(initpos + shift, initpos, radius, WHITE);
uLCD.circle(initpos + shift, initpos, radius, WHITE); // Erase 2nd Circle
on[1] = 0;
}
break;
case 3:
if (on[2] == 0) {
uLCD.filled_circle(initpos + 2*shift, initpos, radius, BLACK);
on[2] = 1;
}
else if (on[2] == 1) {
uLCD.filled_circle(initpos + 2*shift, initpos, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos, radius, BLACK);
on[2] = 0;
}
break;
case 4:
if (on[3] == 0) {
uLCD.filled_circle(initpos, initpos + shift, radius, BLACK); // Fill 4th Circle
on[3] = 1;
}
else if (on[3] == 1) {
uLCD.filled_circle(initpos, initpos + shift, radius, WHITE);
uLCD.circle(initpos, initpos + shift, radius, BLACK); // Erase 4th Circle
on[3] = 0;
}
break;
case 5:
if (on[4] == 0) {
uLCD.filled_circle(initpos + shift, initpos + shift, radius, BLACK); // Fill 5th Circle
on[4] = 1;
}
else if (on[4] == 1) {
uLCD.filled_circle(initpos + shift, initpos + shift, radius, WHITE);
uLCD.circle(initpos + shift, initpos + shift, radius, BLACK); // Erase 5th Circle
on[4] = 0;
}
break;
case 6:
if (on[5] == 0) {
uLCD.filled_circle(initpos + 2*shift, initpos + shift, radius, BLACK); // Fill 6th Circle
on[5] = 1;
}
else if (on[5] == 1) {
uLCD.filled_circle(initpos + 2*shift, initpos + shift, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos + shift, radius, BLACK); // Erase 6th Circle
on[5] = 0;
}
break;
case 7:
if (on[6] == 0) {
uLCD.filled_circle(initpos, initpos + 2*shift, radius, BLACK); // Fill 7th Circle
on[6] = 1;
}
else if (on[6] == 1) {
uLCD.filled_circle(initpos, initpos + 2*shift, radius, WHITE); // Erase 7th Circle
uLCD.circle(initpos, initpos + 2*shift, radius, BLACK);
on[6] = 0;
}
break;
case 8:
if (on[7] == 0) {
uLCD.filled_circle(initpos + shift, initpos + 2*shift, radius, BLACK); // Fill 8th Circle
on[7] = 1;
}
else if (on[7] == 1) {
uLCD.filled_circle(initpos + shift, initpos + 2*shift, radius, WHITE); // Erase 8th Circle
uLCD.circle(initpos + shift, initpos + 2*shift, radius, BLACK);
on[7] = 0;
}
break;
case 9:
if (on[8] == 0) {
uLCD.filled_circle(initpos + 2*shift, initpos + 2*shift, radius, BLACK); // Fill 9th Circle
on[8] = 1;
}
else if (on[8] == 1) {
uLCD.filled_circle(initpos + 2*shift, initpos + 2*shift, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos + 2*shift, radius, BLACK); // Erase 9th Circle
on[8] = 0;
}
break;
}
}
void pushButton(int on [9],int key_code) {
// The winning combination of buttons is 0,2,4,8 (1,3,5,9 in key_codes)
// The rest of the buttons are programmed to give bogus combinations to confuse the player, but one of them might coincidently win the game.
switch (key_code) {
case 2:
invert(on,3);
break;
case 3:
invert(on,6);
break;
case 4:
invert(on,9);
break;
case 6:
invert(on,2);
break;
case 7:
invert(on,5);
break;
case 8:
invert(on,8);
break;
case 10:
invert(on,1);
break;
case 11:
invert(on,4);
break;
case 12:
invert(on,7);
break;
}
}
// Key hit/release interrupt routine thanks to Anthony Buckton
void fallInterrupt() {
int key_code = 0;
int i = 0;
int value = mpr121.read(0x00);
value += mpr121.read(0x01) << 8;
// LED demo mod
i = 0;
// puts key number out to LEDs for demo
for (i=0; i<12; i++) {
if (((value>>i)&0x01)==1) {
key_code=i+1;
}
}
key = key_code;
}
int main() {
int j;
uLCD.rectangle(0,0,127,127,WHITE); // Draw border
// Draw empty circles in correct positions
uLCD.circle(initpos, initpos, radius, WHITE);
uLCD.circle(initpos + shift, initpos, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos, radius, WHITE);
uLCD.circle(initpos, initpos + shift, radius, WHITE);
uLCD.circle(initpos + shift, initpos + shift, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos + shift, radius, WHITE);
uLCD.circle(initpos, initpos + 2*shift, radius, WHITE);
uLCD.circle(initpos + shift, initpos + 2*shift, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos + 2*shift, radius, WHITE);
interrupt.fall(&fallInterrupt);
interrupt.mode(PullUp);
while (1) {
// Call pushButton once button is pressed by passing the key of the button pushed and the status of the circles
if(key != 0) {
pushButton(on, key);
if(key != 1)key = 0;
}
// If all circles are filled, then print You win!!! Reset the mbed
if (key == 1 || (on[0] && on[1] && on[2] && on[3] && on[4] && on[5] && on[6] && on[7] && on[8])) {
uLCD.locate(5,5);
if(key != 1) uLCD.printf("You Win!!!");
uLCD.locate(0,7);
uLCD.printf("Resetting the game");
wait(3);
for (j = 0; j < 9; j++) {
on[j] = rand() % 2;
}
uLCD.filled_rectangle(0,0,127,127,BLACK);// Erase Everything
uLCD.rectangle(0,0,127,127,WHITE); // Draw border
// Draw empty circles in correct positions
uLCD.circle(initpos, initpos, radius, WHITE);
uLCD.circle(initpos + shift, initpos, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos, radius, WHITE);
uLCD.circle(initpos, initpos + shift, radius, WHITE);
uLCD.circle(initpos + shift, initpos + shift, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos + shift, radius, WHITE);
uLCD.circle(initpos, initpos + 2*shift, radius, WHITE);
uLCD.circle(initpos + shift, initpos + 2*shift, radius, WHITE);
uLCD.circle(initpos + 2*shift, initpos + 2*shift, radius, WHITE);
//Make sure they match the array
for(j = 0; j < 9; j++) {
invert(on,j);
}
}
//wait(0.2); // Used wait to eliminate multiple presses of button. <- Done somewhere else
}
}
56 comments on Touchpad puzzle game:
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Puzzle Gameplay on a laptop using touchpad which needs a good LCD and a touchpad controller. I have used it but my laptop is not sufficient for playing a game and there is a problem arise in touchpad in my laptop. Someone suggest me to check it https://babasupport.org/hp/hp-laptop-touchpad-not-working/ for your solution. They make it simple to work on my laptop