Helper scripts and elevator music

elevatorMusic/go.mod

@@ -0,0 +1,7 @@
+module elevatorMusic
+
+require elevatorDriver v0.0.0
+
+replace elevatorDriver => ../elevatorDriver
+
+go 1.20

elevatorMusic/musicplayer/musicplayer.go

@@ -0,0 +1,66 @@
+package musicplayer
+
+import (
+	"log"
+	"os"
+	"os/exec"
+	"syscall"
+)
+
+var MusicPid *os.Process
+var dingPid *os.Process
+var pairPid *os.Process
+
+func PlayMusic(path string, pid *os.Process, loop_music bool) {
+	if path == "" {
+		if pid != nil {
+			pid.Signal(syscall.SIGCONT)
+		}
+		return
+	}
+
+	var cmd *exec.Cmd
+
+	if loop_music {
+		cmd = exec.Command("ffplay", path, "-autoexit", "-nodisp", "-hide_banner", "-loglevel", "warning", "-loop", "0")
+	} else {
+		cmd = exec.Command("ffplay", path, "-autoexit", "-nodisp", "-hide_banner", "-loglevel", "warning")
+	}
+
+	if err := cmd.Start(); err != nil {
+		log.Printf("Failed to start music: %v", err)
+		return
+	}
+
+	pid = cmd.Process
+	log.Println("Playing elevator", path)
+}
+
+func PauseMusic(pid *os.Process) {
+	if pid != nil {
+		pid.Signal(syscall.SIGSTOP)
+		log.Println("Elevator music paused")
+	}
+}
+
+func ResumeMusic(pid *os.Process) {
+	if pid != nil {
+		pid.Signal(syscall.SIGCONT)
+		log.Println("Elevator music resumed")
+	}
+}
+
+func StopMusic(pid *os.Process) {
+	if pid != nil {
+		pid.Signal(syscall.SIGINT)
+		log.Println("Elevator music stopped")
+	}
+}
+
+func PlayDing() {
+	PlayMusic("media/ding.opus", dingPid, false)
+}
+
+func PlayPairing() {
+	PlayMusic("media/pairing_sound.opus", pairPid, false)
+}

go.mod

@@ -12,4 +12,8 @@ require elevatorAlgorithm v0.0.0
 
 replace elevatorAlgorithm => ./elevatorAlgorithm
 
+require elevatorMusic v0.0.0
+
+replace elevatorMusic => ./elevatorMusic
+
 go 1.20

main.go

@@ -13,6 +13,7 @@ func main() {
 
 	log.Println("Elevator starting 🛗")
 	elevio.Init("localhost:15657", elevator.N_FLOORS)
+
 	if elevio.GetFloor() == -1 {
 		fsm.OnInitBetweenFloors()
 	}

scripts/launch_elevator_w_sim.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Check if the number of elevators was passed as an argument
+if [ -z "$1" ]; then
+    echo "Please specify the number of elevators."
+    exit 1
+fi
+
+N=$1 # Number of elevators
+default_udp_port=4200
+default_id=0
+
+simulator_path=$(pwd)/Simulator-v2
+go_program_path=$(pwd)
+go_path_macos=/opt/homebrew/bin/go
+
+# Loop to start N elevators and simulators
+for ((i=0; i<N; i++)); do
+    udp_port=$((default_udp_port + i)) # Calculate UDP port for main.go
+    sim_udp_port=$udp_port
+    id=$((default_id + i)) # Calculate ID
+
+# Check operating system
+if [ "$(uname)" == "Darwin" ]; then
+        # macOS specific commands to open new terminal windows
+        # Run simulator in a new terminal window
+        osascript -e "tell app \"Terminal\" to do script \"echo Starting simulator with UDP port: $sim_udp_port; $simulator_path/sim_server --port $sim_udp_port\""
+        # Run main.go in a new terminal window
+        sleep 1
+        osascript -e "tell app \"Terminal\" to do script \"cd $go_program_path && echo Using UDP port: $udp_port; echo Using ID: $id; $go_path_macos run main.go --port $udp_port --id $id\""
+    elif [ "$(uname)" == "Linux" ]; then
+        # Linux specific commands to open new terminal windows
+        # Run simulator in a new terminal window
+        gnome-terminal -- bash -c "echo Starting simulator with UDP port: $sim_udp_port; $simulator_path/SimElevatorServer --port $sim_udp_port; exec bash"
+        # Run main.go in a new terminal window
+        sleep 1
+        gnome-terminal -- bash -c "cd $go_program_path && echo Using UDP port: $udp_port; echo Using ID: $id; go run main.go --port $udp_port --id $id; exec bash"
+    else
+        echo "Unknown operating system."
+        exit 1
+    fi
+done