example.rpy

init python:
    
    class HoverTooltips:
        hovers = {
            "camping": {
                "activated": False,
                "tooltip": "Tooltip for this scene",
            },
            "tournament": {
                "activated": False,
                "tooltip": "Tooltip for this scene",
            },
        }

        @property
        def tooltip(self):
            for _hover in self.hovers.values():
                if _hover["activated"]:
                    return _hover["tooltip"]

        def toggle(self, name: str):
            for _hover, data in self.hovers.items():
                if _hover == name:
                    data["activated"] = True
                else:
                    data["activated"] = False

    hovers = HoverTooltips()

screen scenes:
    if hovers.tooltip:
        text "[hovers.tooltip]"

    vpgrid:

        cols 4
        rows 3
        xalign 0.5
        ypos 150
        spacing 70

        if renpy.variant("touch"):
            imagebutton:
                idle "tent_idle.png"
                selected_idle "tent_hover.png"
                selected hovers.hovers["camping"]["activated"]
                action If(hovers.hovers["camping"]["activated"], Replay("camping", locked=False), Function(hovers.toggle, "camping"))
            imagebutton:
                idle "binoculars_idle.png"
                selected_idle "binoculars_hover.png"
                selected hovers.hovers["tournament"]["activated"]
                action If(hovers.hovers["tournament"]["activated"], Replay("tournament", locked=False), Function(hovers.toggle, "tournament"))