SRP888
Published © GPL3+

Dodge The Defs!

A simple game using Arduino Uno, 16x2 LCD and a push button.

IntermediateFull instructions provided3,848
Dodge The Defs!

Things used in this project

Hardware components

Resistor 10k ohm
Resistor 10k ohm
One for the contrast of the LCD screen, other for the button. Important: Use the resistor in pull-down configuration, as opposed to the pull-up config shown in the manual.
×2
Resistor 1k ohm
Resistor 1k ohm
For the contrast of the LCD screen.
×1
Pushbutton switch 12mm
SparkFun Pushbutton switch 12mm
×1
Standard LCD - 16x2 White on Blue
Adafruit Standard LCD - 16x2 White on Blue
×1
Arduino UNO & Genuino UNO
Arduino UNO & Genuino UNO
×1
Jumper wires (generic)
Jumper wires (generic)
×1

Story

Read more

Schematics

Complete schematic

Code

lcd_1.ino

Arduino
/*  
    Dodge the defs!!
    Created by : Shreyas R P
    Created on: 21-06-2018
    E-mail ID : shreyasrp888@gmail.com
    A simple game for 16x2 LCD with a button.
    If you make any improvements or changes to the game, please add your    credits below the line:
    Enjoy :)
    Copyright (C) 2018  Shreyas R P

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
    ---------------------------------------------------------------------------------------------
 */
#include <LiquidCrystal.h>

const int btn = 8;  //button input pin

//texts to display
char* introText[]={"Dodge the defs!!","Created on:", "Hit the button..."};

//variable declarations
int game=0;
int buttonPress = 0; 
int buttonState=0;
int obstaclePos;
int obsDelay;
int score=0;
unsigned long lastDebounceTime = 0;  // the last time the output pin was toggled
unsigned long debounceDelay = 50; 
int lastButtonState=LOW;

//GRAPHICS
byte runnin1[8] = {
  0b01100,
  0b01100,
  0b00000,
  0b11100,
  0b01110,
  0b01100,
  0b11110,
  0b00011
};
byte runnin2[8]={
  0b00110,
  0b00110,
  0b00000,
  0b00111,
  0b01110,
  0b00110,
  0b01110,
  0b00101
};
byte jump[8]={
  0b00100,
  0b01100,
  0b11100,
  0b01110,
  0b01100,
  0b11111,
  0b00000,
  0b00001
};
byte def1[8] = {
  0b00100,
  0b00110,
  0b00111,
  0b01110,
  0b00110,
  0b01111,
  0b01000,
  0b00000
};
byte def2[8]={
  0b00100,
  0b00110,
  0b00111,
  0b01110,
  0b00110,
  0b00110,
  0b00110,
  0b00010
};
byte slide[8]={
  0b00000,
  0b00000,
  0b00011,
  0b00011,
  0b00000,
  0b01111,
  0b11111,
  0b00000
};

 
LiquidCrystal lcd(4,6,10,11,12,13);
void setup() {

  Serial.begin(9600);
  pinMode(btn,INPUT);
  lcd.begin(16,2);
  lcd.createChar(0,runnin1);
  lcd.createChar(1,runnin2);
  lcd.createChar(2,jump);
  lcd.createChar(3,def1);
  lcd.createChar(4,def2);
  lcd.createChar(5,slide);
  buttonState=digitalRead(btn);
}

void loop()
{
    
    intro();
    while(game==1) 
      ballActive();
    endGame(); 
}

 void intro()
 {
        score=0;
        lcd.clear();
        lcd.print(introText[0]);   //Instead of declaring introText, you can directly print the text with " ... "
        lcd.setCursor(7,1);
        lcd.print("By SRP888");
        delay(2000);
        lcd.clear();
        lcd.print(introText[1]);
        lcd.setCursor(0,1);
        lcd.print("21-06-2018");
        delay(2000);
        lcd.clear();
        while(button()!=1)            //wait for the user to hit the button, display the text until that.
        {
         lcd.setCursor(0,0);
         lcd.print(introText[2]);
         delay(100);
        } 
        if(button()==1)
          game=1;
 }

 void reset()
 {
      if(obstaclePos%2==0)            //Changing the display of the player from one pose to another to show he is running, smartly using obstaclePos.
      {
          lcd.clear();
          lcd.setCursor(0,1);
          lcd.write(byte(0));
      }
      else
      {
          lcd.clear();
          lcd.setCursor(0,1);
          lcd.write(1);
      }
 }

 void ballActive()
 {
  obsDelay=200;   //initial delay for the defender
  obstaclePos=15;  //since it is a 16x2 lcd, and index starts from 0.
  while(game==1)
  {
       reset();
       if(button()==1)      //if button is pressed.
        {
          lcd.clear();
          lcd.setCursor(0,0);
          lcd.write(2);            //print the player jumping
          obstacle(obstaclePos);   //print the defender 
          delay(400);              //This is to prevent the display disappearing fast, and going unnoticed.
          lcd.clear();
          lcd.setCursor(0,1);
          lcd.write(1);            //print the player back on ground
          obstacle(obstaclePos);   //print the defender  
          
        }
        else
        {
          if(obstaclePos!=0)        //if the defender has not approached the player, then continue.
          {
              reset();
              obstacle(obstaclePos);
          }
          else if(obstaclePos==0)   //if the defender is at 0 position,i.e. he has approached the player when he is on ground, then end the game.
          {
             game=0;
             break;
          }
        }
        obstaclePos--;               //brings the defender closer to the player
        if(obstaclePos<0)            //if the player successfully dodged then,  
        {                             
          obsDelay=obsDelay-20;       //decrease the delay (increase speed),
          obstaclePos=15;             //bring the defender to starting position,
          score++;                    //and increase the score by 1.
        }
        if(obsDelay==0)               //if 10 players have been dodged (because 200/20=10), then end the game
            game=0;
             
        delay(obsDelay);
    }
  }
int button() 
{
     int reading = digitalRead(btn);
     // If the switch changed, due to noise or pressing:
     if (reading != lastButtonState) {
       // reset the debouncing timer
       lastDebounceTime = millis();
     } 
     
     if ((millis() - lastDebounceTime) > debounceDelay) {
       buttonState = reading;     
       if (buttonState == HIGH) {
           lastButtonState = reading;
           return 1;
         }
       }
     lastButtonState = reading;
}
void obstacle(int i)
{ 
          if(obstaclePos%2==0&& obstaclePos>2)   //if defender is far away from the player, then show him running
          {
              lcd.setCursor(i,1);
              lcd.write(3);
          }
          else if(obstaclePos%2!=0&& obstaclePos>2)
          {
              lcd.setCursor(i,1);
              lcd.write(4);
          }
          else                                 //if he is 2 steps close to the player, then show him sliding
          {
              lcd.setCursor(i,1);
              lcd.write(5);
          }
}
void endGame()
{
    if(score==10)
    {
        lcd.clear();
        lcd.print("Congratulations!");
        lcd.setCursor(0,1);
        lcd.print("You beat 'em all");
        delay(3000);
    }
    else if(score<3)
    {
        lcd.clear();
        lcd.print("You suck");
        lcd.setCursor(0,1);
        lcd.print("Score: ");
        lcd.print(score);
        delay(3000);
    }
    else if(score<6)
    {
        lcd.clear();
        lcd.print("Not bad!");
        lcd.setCursor(0,1);
        lcd.print("Score: ");
        lcd.print(score);
        delay(3000);
    }
    else
    {
        lcd.clear();
        lcd.print("Great!");
        lcd.setCursor(0,1);
        lcd.print("Score: ");
        lcd.print(score);
        delay(3000);
    }
}

Credits

SRP888

SRP888

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