Fix #2509 : Floating Platform Object Idea

[goncalof148]

The Floating Platform has the following characteristics:

• Floats on top of water
• Has a wave-like motion on water
• Reacts to Tux jumping on it with bubbles and a sound effect
• If not placed on water, behaves like a normal object with normal gravity
• Is placed slightly under water to simulate floating
• If it has rocks on top, it sinks faster or slower based on the number of rocks
• If it's sinking and the rocks are removed, it floats again

Closes #2509

[tobbi]

Can you please fix these compiler errors:

In file included from /home/runner/work/supertux/supertux/src/object/floating_platform.cpp:17:
/home/runner/work/supertux/supertux/src/object/floating_platform.hpp:48:9: error: private field 'm_max_sink_depth' is not used [-Werror,-Wunused-private-field]
  float m_max_sink_depth;
        ^
/home/runner/work/supertux/supertux/src/object/floating_platform.hpp:50:7: error: private field 'number_rocks' is not used [-Werror,-Wunused-private-field]
  int number_rocks;
      ^

[goncalof148]

@bruhmoent about the notes, here is a video of what is happening https://www.youtube.com/watch?v=0HYPXKxie-Y Do you have some different behaviour when rocks are taken of the platform? The player is jittering in what way? About the other suggestions I am working on them!

[bruhmoent]

https://github.com/user-attachments/assets/53502538-c273-4162-bbd3-3c4ee2b08826

[Alasdairbugs]

Any update on this PR?

[Hypernoot]

Closing as nobody seems to be working on this. Create a new PR when the bugs are fixed.