Put global to static local, fix isPressed bug

roulette/roulette.ino

@@ -1,13 +1,11 @@
 #define BUTTON 4
 int LED[] = {5, 6, 9, 10, 11};
 int val[5] = {255, 255, 0, 255, 255};
-int clk = 0;
+
 #define DELAY 100
 #define STEP 100
 #define STOP 1000
-int delay_time = DELAY;
-bool pressed = 0;
-unsigned long checkpoint = 0;
+
 
 bool isPressed() {
   static bool last = 1;
@@ -17,11 +15,10 @@ bool isPressed() {
   }
   last = digitalRead(BUTTON);
   delay(1);
-  return 0;
+  return result;
 }
 
 void setup() {
-  // put your setup code here, to run once:
   Serial.begin(9600);
   for (int i = 0; i < 5; i++) {
     pinMode(LED[i], OUTPUT);
@@ -31,17 +28,20 @@ void setup() {
 }
 
 void loop() {
-  // put your main code here, to run repeatedly:
+  static int clk = 0;
+  static int delay_time = DELAY;
+  static bool hit = 0;
+  static unsigned long checkpoint = 0;
   if (isPressed()) {
-    pressed = !pressed;
-    if (!pressed) {
+    hit = !hit;
+    if (!hit) {
       delay_time = DELAY;
     }
-    Serial.println(pressed);
+    Serial.println(hit);
   }
 
   if (millis() - checkpoint > delay_time) {
-    if (pressed) {
+    if (hit) {
       delay_time += STEP;
     }
     if (delay_time < STOP) {