freelookmode = true
camerarotation = Vec3()
--Create a window
window = Window:Create()
context = Context:Create(window)
world = World:Create()
camera = Camera:Create()
camera:Move(0,0,-3)
local light = DirectionalLight:Create()
light:SetRotation(35,35,0)
        
model = Model:Box() 
model:SetColor(0.0,0.0,1.0) 

--Hide the mouse cursor
window:HideMouse() 

--Move the mouse to the center of the screen
window:SetMousePosition(context:GetWidth()/2,context:GetHeight()/2) 

while true do        
        if window:Closed() then return false end

        --Press escape to end freelook mode
        if (window:KeyHit(Key.Escape)) then
        
                freelookmode=false 
                window:ShowMouse() 
        end

        model:Turn(0,Time:GetSpeed(),0) 

        if (freelookmode) then
                
                --Get the mouse movement
                local sx = Math:Round(context:GetWidth()/2)
                local sy = Math:Round(context:GetHeight()/2) 
                local mouseposition = window:GetMousePosition() 
                local dx = mouseposition.x - sx 
                local dy = mouseposition.y - sy 

                --Adjust and set the camera rotation
                camerarotation.x = camerarotation.x + dy / 10.0 
                camerarotation.y = camerarotation.y + dx / 10.0 
                camera:SetRotation(camerarotation) 

                --Move the mouse to the center of the screen
                window:SetMousePosition(sx,sy) 
        end

        Time:Update()
        world:Update()
        world:Render()
        context:Sync(false)

end