I want to find the mouse coordinates during every frame of my game

Questions
3

To expand on what was already said and answer the original question; you need to pass the mouse coordinates to the update function to have access to it every frame. You can either make it part of the “self” script or a local variable/table to the script, the former probably being the best practice.

example:


function init(self)  
    self.mouse = nil -- Declare it so you know it is part of the script, It will work without this though
end

function update(self, dt)
    if self.mouse then
        print("Mouse x position = " .. self.mouse.x)
        print("Mouse y position = " .. self.mouse.y)
    end
end

function on_input(self, action_id, action)
    if not action_id then -- action_id == nil, so this is a mouse movement event
        self.mouse = action
    end
end
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