--Create a window
window = Window:Create()
context = Context:Create(window)
world = World:Create()
camera = Camera:Create()
camera:Move(0,0,-3)

local releasequantity = 10

--Create an semitter
emitter = Emitter:Create(50)
emitter:SetReleaseQuantity(releasequantity)

while true do
    if window:Closed() or window:KeyHit(Key.Escape) then return false end
    
    Time:Update()
    world:Update()
    world:Render()
    
    if(window:KeyDown(Key.Up) and releasequantity < 50) then
        releasequantity  = releasequantity +1
        emitter:SetReleaseQuantity(releasequantity) 
    elseif (window:KeyDown(Key.Down) and releasequantity > 1) then
        releasequantity = releasequantity -1
        emitter:SetReleaseQuantity(releasequantity) 
    end
    
    context:SetBlendMode(Blend.Alpha) 
    context:DrawText("Release Quantity: " ..emitter:GetReleaseQuantity() ,2,2) 
    
    context:Sync()
end