day20: whelp.

day20/pulsePropagation.go

@@ -8,16 +8,19 @@ import (
 )
 
 func Run() int {
-	fmt.Println("hello from dya 20")
+	// fmt.Println("hello from dya 20")
 
 	filename := "day20/input"
 	modules := ReadModules(filename)
 	InitStuffs(modules)
 	log.Print("got modules:\n", modules)
 
-	low, high := Count10000ButtonPresses(modules)
+	var low, high int
+	// low, high = Count10000ButtonPresses(modules)
 	log.Printf("got low %d and high %d\n", low, high)
 
+	fmt.Println(AllMermaidFlowChard(modules))
+
 	return low * high
 }
 
@@ -35,10 +38,13 @@ func Count10000ButtonPresses(modules map[string]Module) (lowSignalsCount, highSi
 	// for now let's just print the info on loop
 
 	for i := 0; i < count; i++ {
-		stepLow, stepHigh := PropagateButtonPress(modules)
+		if i % 10000 == 0 {
+			log.Println("done button presses: ", i)
+		}
+		stepLow, stepHigh := PropagateButtonPress(modules, i)
 		lowSignalsCount += stepLow
 		highSignalsCount += stepHigh
-		log.Printf("after step %d low is %d and high is %d", i, lowSignalsCount, highSignalsCount)
+		// log.Printf("after step %d low is %d and high is %d", i, lowSignalsCount, highSignalsCount)
 		state := ModulesState(modules)
 
 		prevCounts, found := countsAfterState[state]
@@ -65,7 +71,7 @@ func Count10000ButtonPresses(modules map[string]Module) (lowSignalsCount, highSi
 	return
 }
 
-func PropagateButtonPress(modules map[string]Module) (lowSignalsCount, highSignalsCount int) {
+func PropagateButtonPress(modules map[string]Module, i int) (lowSignalsCount, highSignalsCount int) {
 	signals := []Signal{{From: "button", To: "broadcast", PulseType: LowPulse}}
 	lowSignalsCount += 1
 
@@ -73,11 +79,14 @@ func PropagateButtonPress(modules map[string]Module) (lowSignalsCount, highSigna
 		curSignal := signals[0]
 		signals = signals[1:]
 
-		log.Printf("%s -%s-> %s", curSignal.From, curSignal.PulseType, curSignal.To)
+		// log.Printf("%s -%s-> %s", curSignal.From, curSignal.PulseType, curSignal.To)
 
 		receivingModule, found := modules[curSignal.To]
 		if !found {
-			log.Print(fmt.Sprintf("signal %+v can't find it's recepient\n", curSignal))
+			// log.Print(fmt.Sprintf("signal %+v can't find it's recepient\n", curSignal))
+			if curSignal.To == "rx" && curSignal.PulseType == LowPulse {
+				panic(fmt.Sprintf("getting low signal to rx, on step %d", i))
+			}
 			continue
 		}
 
@@ -153,3 +162,12 @@ func ModulesState(allModules map[string]Module) string {
 
 	return fmt.Sprint(states)
 }
+
+func AllMermaidFlowChard(allModules map[string]Module) (result string) {
+	result = "flowchart LR\n"
+	for _, module := range allModules {
+		result += module.MermaidFlow()
+	}
+
+	return
+}