--Create a window
window = Window:Create()
context = Context:Create(window)
myworld = {}

for i=0,  1 do
        
        --Create a world
        myworld[i] = World:Create() 

        --Create a camera
        local camera = Camera:Create() 
        camera:Turn(35,0,0) 
        camera:Move(0,0,-3) 

        --Create a directional light
        local light = DirectionalLight:Create() 
        light:SetRotation(35,35,0) 
                
        --Create a model
        local model = nil 
        if (i==0) then
                
                model = Model:Box() 
                
        else
                
                model = Model:Cylinder() 
        end
        model:SetColor(0.0,0.0,1.0) 
end

while true do        
        if window:Closed() or window:KeyHit(Key.Escape) then return false end
        
        --Press space key to switch between worlds
        if (window:KeyHit(Key.Space)) then
        
                if (World:GetCurrent()== myworld[0]) then
                
                        World:SetCurrent(myworld[1]) 
                
                else
                
                        World:SetCurrent(myworld[0]) 
                end
        end

        Time:Update() 
        World:GetCurrent():Update() 
        World:GetCurrent():Render() 
        context:Sync(false) 

end