Sensanai:: Added CLI flags.

Sensanai:: Added help.
README:: Added Usage instructions.

README.md

@@ -5,8 +5,6 @@ A tool made to convert sensitivities between games.
 - Use `sensanai` for the tui application.
 - Use `sensanai -gui` for the gui application.
 
----
-
 ## INSTALLATION.
 
 - Clone the git repository and cd into it:
@@ -17,4 +15,32 @@ A tool made to convert sensitivities between games.
 - Run `go install`.
 - Make sure that your `go/bin` directory is added to `$PATH`.
 
+## USAGE
+
+```
+Sensaina 繊細な
+A tool to convert sensitivities between games
+Currently CS:GO, Overwatch, and Valorant is supported.
+
+Use without any flags to run the TUI
+
+--gui || -g
+        Use this flag to run the Sensaina GUI
+===
+
+sensanai --flag value
+--from
+        From Game.
+--to
+        To Game.
+--sens
+        Initial Sensitivity.
+--idpi
+        Initial DPI.
+--fdpi
+        Final DPI.
+```
+
+---
+
 > Inspired from: [convert-sens](https://github.com/succumbs/convert-sens/).

sensaina.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"os"
 	"strconv"
@@ -21,16 +22,72 @@ var finaldpi int64
 
 func main() {
 	if len(os.Args) != 1 {
-		if os.Args[1] == "-gui" {
+		if os.Args[1] == "--gui" || os.Args[1] == "-g" {
 			gui()
+		} else if os.Args[1] == "-h" || os.Args[1] == "--help" {
+			help()
 		} else {
-			fmt.Printf("Unexpected argument :: %v\n", os.Args[1])
+			cli()
 		}
 	} else {
 		tui()
 	}
 }
 
+func help() {
+	fmt.Printf("Sensaina 繊細な\n")
+	fmt.Printf("A tool to convert sensitivities between games\n")
+
+	fmt.Printf("Currently CS:GO, Overwatch, and Valorant is supported.\n\n")
+	fmt.Printf("Use without any flags to run the TUI\n\n")
+
+	fmt.Printf("--gui || -g \n")
+	fmt.Printf("\tUse this flag to run the Sensaina GUI\n===\n\n")
+
+	fmt.Printf("sensanai --flag value\n")
+
+	fmt.Printf("--from\n")
+	fmt.Printf("\tFrom Game.\n")
+
+	fmt.Printf("--to\n")
+	fmt.Printf("\tTo Game.\n")
+
+	fmt.Printf("--sens\n")
+	fmt.Printf("\tInitial Sensitivity.\n")
+
+	fmt.Printf("--idpi\n")
+	fmt.Printf("\tInitial DPI.\n")
+
+	fmt.Printf("--fdpi\n")
+	fmt.Printf("\tFinal DPI.\n")
+}
+
+func cli() {
+	fromGamePtr := flag.String("from", "CS:GO", "From Game")
+	toGamePtr := flag.String("to", "CS:GO", "To Game")
+	fromSensPtr := flag.Float64("sens", 100, "From Sensitivity")
+	fromDPIPtr := flag.Int64("idpi", 800, "Initial DPI")
+
+	flag.Parse()
+
+	toDPIPtr := flag.Int64("fdpi", *fromDPIPtr, "Final DPI")
+
+	flag.Parse()
+
+	sensitivity := sens(yaw[*fromGamePtr], yaw[*toGamePtr], *fromSensPtr, *fromDPIPtr, *toDPIPtr)
+	cm360 := cmpi(yaw[*fromGamePtr], *fromSensPtr, *fromDPIPtr)
+
+	fmt.Printf("Sensitivity: %f\n", sensitivity)
+	fmt.Printf("Centimeter/360: %f\n\n", cm360)
+
+	fmt.Println("Initial Game: ", *fromGamePtr)
+	fmt.Println("Final Game: ", *toGamePtr)
+	fmt.Println("From Sensitivity: ", *fromSensPtr)
+	fmt.Println("From DPI: ", *fromDPIPtr)
+	fmt.Println("To DPI: ", *toDPIPtr)
+
+}
+
 func tui() {
 
 	b := lipgloss.NewStyle().Background(lipgloss.Color("#000")).Bold(true).Italic(true).Underline(true).Foreground(lipgloss.Color("#FDB0C0")).Render