improve clicking behavior - no delay()

AutoClicker3000.ino

@@ -20,10 +20,7 @@ Adafruit_RGBLCDShield lcd = Adafruit_RGBLCDShield();
 #define WHITE 0x7
 
 
-bool doClicking = false;
-bool isOn = false;
-
-unsigned long lcdTimeout = 1000;
+unsigned long lcdTimeout = 1500;
 unsigned long lcdLastSet = 0;
 
 unsigned long debounceDelay = 50;
@@ -37,6 +34,11 @@ typedef struct
 
 DebounceButton up, down, left, right, select;
 
+bool doClicking = false;
+unsigned long lastClickTime = 0;
+int clickColor = 0;
+
+
 void setup() {
   Serial.begin(9600);
 
@@ -46,9 +48,10 @@ void setup() {
   Mouse.begin();
   Keyboard.begin();
 
-  Serial.println("AutoClicker3000");
   lcd.print("AutoClicker 3000");
-  lcd.setBacklight(WHITE);
+  lcd.setCursor(0, 1);
+  lcd.print("For Jasper");
+  lcd.setBacklight(YELLOW);
 
   lcdLastSet = millis();
 }
@@ -67,7 +70,6 @@ bool triggered(DebounceButton &b) {
 
 int clickDelay = 100; // millis
 int delayChange = 10; // millis
-char modeName[] = "Roblox ";
 
 void loop() {
   uint8_t buttons = lcd.readButtons();
@@ -127,15 +129,16 @@ void loop() {
   }
 
   if (doClicking) {
-    if (isOn) {
-      lcd.setBacklight(RED);
-      Mouse.click(MOUSE_LEFT);
-      isOn = false;
-      delay(clickDelay);
+    unsigned long time = millis();
+    if ((unsigned long)(time - lastClickTime) >= clickDelay) {
+      if (clickColor == RED) {
+        clickColor = WHITE;
       } else {
-      lcd.setBacklight(WHITE);
-      isOn = true;
-      delay(clickDelay);
+        clickColor = RED;
+      }
+      lcd.setBacklight(clickColor);
+      Mouse.click(MOUSE_LEFT);
+      lastClickTime = time;
     }
   }
 
@@ -145,6 +148,4 @@ void loop() {
     lcd.print("                ");
     lcdLastSet = 0;
   }
-
-//  delay(3);
 }