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-- set viewport -- but while following some constraints
set_viewport = function(viewport)
Viewport = viewport
if Viewport.zoom < 0.1 then Viewport.zoom = 0.1 end
Viewport.w, Viewport.h = App.screen.width, App.screen.height
end
Viewport = deepcopy(Initial_viewport)
if Viewport.zoom < 0.1 then Viewport.zoom = 0.1 end
Viewport.w, Viewport.h = App.screen.width, App.screen.height
set_viewport(deepcopy(Initial_viewport))