Middle Mouse Button Use

[Thirsty Panther]

I'm in the process of developing a RTS camera script in the style of Command and Conquer. 

So far I've modified the spectator script so that if you move the mouse to the top of the screen the camera moves forward. If you move the mouse to the bottom of the screen the camera moves backwards. Likewise if the mouse moves left or right the camera follows. I've even got the height of the camera linked to the mouse wheel. 

What I would like to do is to rotate the camera by pressing the middle mouse button and moving the mouse in the direction I want the camera to rotate.

local mhit = window:MouseDown(Key.MButton)

This code lets me know the Middle button is pressed but how do I get the Left - Right information at the same time?

[macklebee]

13 hours ago, Thirsty Panther said:

local mhit = window:MouseDown(Key.MButton)

This code lets me know the Middle button is pressed but how do I get the Left - Right information at the same time?

Just like you would for any other time for the camera rotation but make the middle mouse button the qualifier for allowing the camera to rotate. Look at the orbital camera example I posted almost two years ago for an example: 

Here's the same code updated to show the use with middle mouse button instead of the right mouse button:

window = Window:Create("Orbital Camera",0,0,800,600,Window.Titlebar+Window.Center)
context = Context:Create(window)
world = World:Create()
camera = Camera:Create()
camera:SetSkybox("Materials/Sky/skybox_texture.tex")
light = DirectionalLight:Create()
light:SetRotation(35,35,0)

player = Model:Load("Models/Characters/generic/generic.mdl")
player:SetColor(0,1,0,1)
pivot = Pivot:Create()
pivot:SetPosition(0,0.8,0)
camera:SetParent(pivot)
camera:Move(0,1,-3)

mx = 0
my = 0
prevmx = 0
prevmy = 0
toggle = 0

while window:KeyDown(Key.Escape)==false do
	if window:Closed() then break end
	if window:MouseHit(Key.MButton) then toggle = 1 end
	if window:MouseDown(Key.MButton) then
		mousepos = window:GetMousePosition()
		mx = pivot:GetRotation().x + (mousepos.y-prevmy)
		my = pivot:GetRotation().y + (mousepos.x-prevmx)
		if toggle==1 then
			toggle = 0
			mx = pivot:GetRotation().x
			my = pivot:GetRotation().y
		end
		pivot:SetRotation(mx,my,pivot:GetRotation().z)
		prevmx = mousepos.x
		prevmy = mousepos.y
	end

	Time:Update()
	world:Update()
	world:Render()
	context:SetBlendMode(Blend.Alpha)
	context:DrawText(string.format("FPS: %.1f",Time:UPS()), 2, 2)
	context:DrawText("Hold Middle Mouse Button Down to Rotate", 2, 22)
	context:SetBlendMode(Blend.Solid)
	context:Sync(true)
end