Scoreboard

1/*
2 * **DuoScore Remix: A Digital Scoreboard with LCD Display for Two-Player Games (I2C Version)**
3 * This is based on the great work of rom4incogn1to
4 * https://projecthub.arduino.cc/rom4incogn1to/duoscore-a-digital-scoreboard-with-lcd-display-for-two-player-games-ae7593
5 * Updates: 
6 * Replaced player toggle button with P2 score incrementing. Now there are dedicated buttons for score incrementing.
7 * Removed the need for the dimmer, as it works with an upgraded version of the LCD display that has it built in. 
8 *
9 * This project implements a versatile digital scoreboard using an I2C LCD display, designed to track scores for any two-player game.
10 *
11 * This modified version works with an I2C LCD module connected via:
12 * - A5 to SCL
13 * - A4 to SDA
14 * - GND to GND
15 * - 5V to VCC
16 */
17
18// Include the required libraries for I2C communication and the I2C LCD
19#include <Wire.h>
20#include <LiquidCrystal_I2C.h>
21
22// Initialize the LCD with its I2C address, columns, and rows.
23// Common addresses are 0x27 or 0x3F. If this doesn't work, you may need to find your LCD's specific address.
24LiquidCrystal_I2C lcd(0x27, 16, 2);
25
26// Variables to store the points for both players
27int ptsP1 = 0, ptsP2 = 0;
28
29// NEW: Pins for Hailey's and Dad's score buttons
30const int buttonHailey = 7; // Previously buttonAddPts
31const int buttonDad = 8;    // Previously buttonPlayer
32
33// NEW: Last states for Hailey's and Dad's buttons for debouncing
34int lastButtonHaileyState = LOW;
35int lastButtonDadState = LOW;
36
37
38// Pin for the reset button
39const int buttonReset = 9;
40
41// The 'player' variable is no longer needed as each button directly adds to a score.
42// int player = 0; // REMOVED
43
44// Declare the game initialization function
45void gameInit(void);
46
47void setup() {
48  // Initialize the LCD and turn on the backlight
49  lcd.init();
50  lcd.backlight();
51  delay(100);
52
53  // Set button pins as inputs
54  pinMode(buttonHailey, INPUT);
55  pinMode(buttonDad, INPUT);
56  pinMode(buttonReset, INPUT); // Make sure reset button is also set as input
57
58  // Display the welcome animation
59  gameInit();
60}
61
62void loop() {
63  // Use flags to track if display update is needed
64  static int prev_ptsP1 = -1; // Initialize with a value that ensures first update
65  static int prev_ptsP2 = -1;
66
67  bool needsDisplayUpdate = false;
68
69  // --- Hailey's Score Button Logic ---
70  int currentButtonHaileyState = digitalRead(buttonHailey);
71  if (currentButtonHaileyState != lastButtonHaileyState) {
72    if (currentButtonHaileyState == HIGH) {
73      ptsP1 += 1;
74      needsDisplayUpdate = true; // Score changed, update display
75    }
76    lastButtonHaileyState = currentButtonHaileyState;
77  }
78
79  // --- Dad's Score Button Logic ---
80  int currentButtonDadState = digitalRead(buttonDad);
81  if (currentButtonDadState != lastButtonDadState) {
82    if (currentButtonDadState == HIGH) {
83      ptsP2 += 1;
84      needsDisplayUpdate = true; // Score changed, update display
85    }
86    lastButtonDadState = currentButtonDadState;
87  }
88
89  // Reset logic with animation (kept as is)
90  if (digitalRead(buttonReset) == HIGH) {
91    // Reset animation
92    int j = 0;
93    for (int i = 0; i < 16; i++) {
94      lcd.clear();
95      // Alternate between lines 0 and 1 to display "NEW GAME"
96      if (i % 2 == 0) {
97        j = 0;
98      } else {
99        j = 1;
100      }
101      lcd.setCursor(i, j);
102      lcd.print("NEW GAME");
103      delay(160);
104    }
105
106    // Reset variables after the animation
107    // The 'player' variable is gone
108    ptsP1 = 0;
109    ptsP2 = 0;
110
111    // Re-run the welcome animation
112    gameInit();
113
114    // Ensure flags are reset so display updates after reset
115    prev_ptsP1 = -1;
116    prev_ptsP2 = -1;
117    // prev_player = -1; // REMOVED
118    needsDisplayUpdate = true;
119
120    // Wait for the user to release the reset button
121    while (digitalRead(buttonReset) == HIGH) {
122      delay(10);
123    }
124  }
125
126  // --- Optimized Display Update ---
127  // Only update LCD if scores have changed
128  if (needsDisplayUpdate || ptsP1 != prev_ptsP1 || ptsP2 != prev_ptsP2) {
129    // Display Hailey's score
130    lcd.setCursor(0, 0);
131    lcd.print("PLAYER 1:   "); // Adjusted string length
132    lcd.print(ptsP1);
133    // Overwrite any extra digits if score decreases (e.g., 100 to 9)
134    if (ptsP1 < 10) lcd.print("  "); // Two spaces for 1-digit number
135    else if (ptsP1 < 100) lcd.print(" "); // One space for 2-digit number
136
137
138    // Display Dad's score
139    lcd.setCursor(0, 1);
140    lcd.print("PLAYER 2:   "); // Adjusted string length
141    lcd.print(ptsP2);
142    // Overwrite any extra digits if score decreases
143    if (ptsP2 < 10) lcd.print("  "); // Two spaces for 1-digit number
144    else if (ptsP2 < 100) lcd.print(" "); // One space for 2-digit number
145
146    // The active player indicator is no longer needed
147    // lcd.setCursor(15, 0); // REMOVED
148    // lcd.print(" ");      // REMOVED
149    // lcd.setCursor(15, 1); // REMOVED
150    // lcd.print(" ");      // REMOVED
151
152    // Update previous states
153    prev_ptsP1 = ptsP1;
154    prev_ptsP2 = ptsP2;
155  }
156
157  // Small delay for button debouncing and to prevent loop from running too fast if nothing is changing
158  delay(10);
159}
160
161// Game initialization function with a loading screen animation
162void gameInit(void) {
163  lcd.clear();
164  lcd.setCursor(0, 0); // Changed from 3,0 to 0,0 to center "PING PONG SCORES" better
165  lcd.print("PING PONG SCORES");
166
167  // Loading animation with dots on the bottom line
168  for (int i = 0; i <= 15; i++) {
169    lcd.setCursor(i, 1);
170    lcd.print(".");
171    delay(120); // Delay to adjust the speed of the animation
172    lcd.setCursor(i, 1);
173    lcd.print(" ");
174  }
175
176  // Small pause before clearing the screen
177  delay(200);
178  lcd.clear();
179}