WASD to Mouse Movement Auto Hotkey Script

MouseWASD

#SingleInstance Force
SetWorkingDir A_ScriptDir
SendMode "Input"

; Parameters
global fixedDistance := 150     ; Fixed distance from center
global verticalOffset := -40   ; Pixels to offset vertically from center when returning (-ve is up)
global targetMonitorIndex := 1 ; Set the target monitor index (1, 2, 3, etc.)

; State variables
global MouseState := 0         ; 0 = Up, 1 = Down
global CenterX := 0            ; Center X coordinate of target monitor
global CenterY := 0            ; Center Y coordinate of target monitor

; Initial setup: Get target monitor center
CenterMouseOnTargetMonitor()

; Function to find target monitor and update center coordinates
CenterMouseOnTargetMonitor() {
    global CenterX, CenterY, targetMonitorIndex
    MonitorGet(targetMonitorIndex, &monLeft, &monTop, &monRight, &monBottom)
    CenterX := monLeft + (monRight - monLeft) // 2
    CenterY := monTop + (monBottom - monTop) // 2
}

; Function to update mouse position based on WASD state
UpdateMousePosition(*) { ; Use wildcard (*) if needed, but might not be necessary if called directly
    global MouseState, CenterX, CenterY, fixedDistance, verticalOffset

    isW := GetKeyState("w", "P")
    isA := GetKeyState("a", "P")
    isS := GetKeyState("s", "P")
    isD := GetKeyState("d", "P")

    dx := 0
    dy := 0
    numKeysPressed := isW + isA + isS + isD

    if (numKeysPressed > 0) {
        ; Calculate direction vector components
        if (isW)
            dy -= 1
        if (isS)
            dy += 1
        if (isA)
            dx -= 1
        if (isD)
            dx += 1

        ; Normalize for diagonal movement to maintain fixed distance
        if (Abs(dx) == 1 && Abs(dy) == 1) {
             ; Approximation: 1 / sqrt(2) is roughly 0.707
             dx := Round(dx * fixedDistance * 0.707)
             dy := Round(dy * fixedDistance * 0.707)
        } else {
             ; Pure horizontal or vertical
             dx *= fixedDistance
             dy *= fixedDistance
        }

        TargetX := CenterX + dx
        TargetY := (CenterY + verticalOffset) + dy

        if (!MouseState) {
            Click "Down", "Left"  ; Hold LEFT mouse button
            MouseState := 1
        }
        MouseMove TargetX, TargetY, 0  ; Move to calculated fixed position
    } else {
        ; No WASD keys are pressed
        if (MouseState) {
            Click "Up", "Left"    ; Release LEFT mouse button
            MouseMove CenterX, CenterY + verticalOffset, 0 ; Move mouse to offset center
            MouseState := 0
        }
    }
}

; Hotkeys - trigger update on press and release
*w::UpdateMousePosition()
*a::UpdateMousePosition()
*s::UpdateMousePosition()
*d::UpdateMousePosition()

*w Up::UpdateMousePosition()
*a Up::UpdateMousePosition()
*s Up::UpdateMousePosition()
*d Up::UpdateMousePosition()

; Exit script with Esc key
Esc::ExitApp