Update the way the machine is drawn

Instead of clearing lines and redrawing, static parts of the machine, the cursor moves between lines that change and overwrites the line. This should result in much less flickering during gameplay.

Flyby.go

@@ -178,11 +178,13 @@ func funcBet() {
   os.Exit(0)
  }
  bets++
+ clean(2)
  funcRoll(bet)
 }
 
 func funcRoll(bet int) {
- clean(5)
+ //clean(5)
+ moveUp(3)
  rate = 10 // old value: 8
  frameMax := 256
  if (jamming == true) { // jamming function
@@ -211,14 +213,16 @@ func funcRoll(bet int) {
   arrSlice = append(arrSlice, result) // stick random number on the end of the slice (array)
   arrSlice = arrSlice[1:] //remove first element
   slicePrint(arrSlice)
-  fmt.Println("--------------^------------------------------------------------")
-  fmt.Println("      / \\  ", (frames+1), "/", frameMax)
+  moveDown(2)
+  //fmt.Println("--------------^------------------------------------------------")
+  fmt.Println("      / \\  ", (frames+1), "/", frameMax, "   ") // spaces at the end to wipe remains
   time.Sleep(time.Duration(rate) * time.Millisecond)
   if (frames > frameMax/2) {
    rate = rate + 1
   }
   if (frames < jam - 1) { //replace jam with frameMax if it breaks!
-    clean(3)
+   //clean(3)
+   moveUp(3)
   }
  }
  if (jammed == true) {
@@ -328,10 +332,18 @@ func color (col string) { // short way of coloring terminal. Reset with color(Re
         fmt.Print(col)
 }
 
+func moveUp (amt int) {
+        fmt.Print("\x1b[",amt,"F")
+}
+
+func moveDown (amt int) {
+        fmt.Print("\x1b[",amt,"E")
+}
+
 func slicePrint (slice []int) { //prints a slice without commas, spaces or []
      for i := 1; i < len(slice); i++ {
         //fmt.Print(slice[i])
         fmt.Printf("%s%d%s", colorMap[slice[i]], slice[i], Reset)
     }
-    fmt.Print("\n")
+    //fmt.Print("\n")
 }