added asynchronous timer

charlieCube.ino

@@ -1,21 +1,17 @@
-// WIP. 3/28/2022:  added test state machine. Need to re-write moving to next state
+// WIP. 4/4/2022:  started to implement delay timer asyncronously using existing timer2 interrupt.
 
 #include "config.h"
 #include "cubeplex.h"
 #include <timer.h>
 
-Timer animationDelay;
-bool animationDelayTiming = false;
-
 int color = red;
 
-
 void setup() {
   Serial.begin(115200);
   Serial.println("start program...");
   initCube();
-  timerInit();
-  
+  //timerInit();
+
   currentState = CHASETHEDOT;
   lastState = -1;
 
@@ -29,13 +25,14 @@ void loop() {
 
     case CHASETHEDOT:
       chaseTheDot();
-      //currentState = PLANARFLOP3D;
+      break;
+
+    case RANDOMRAINBOW:
+      rainbow_random();
       break;
 
     case PLANARFLOP3D:
       planarFlop3D();
-      //currentState = CHASETHEDOT;
       break;
   }
-  animationDelay.update();
 }