Tint rendered lights with light_color

[resolvicomai]

Summary

• Add a light_color argument to Light with the current white behavior as the default.
• Apply the configured color tint before masking the light texture during rendering.
• Add a headless Pygame regression test for colored light rendering.

Fixes #33.

Validation

• PYTHONPATH=. uv run --no-project --with pytest --with pygame==2.6.1 pytest -q tests/test_light.py
• PYTHONPATH=. uv run --no-project --with ruff ruff check game_engine/core/light.py tests/test_light.py
• python3 -m py_compile game_engine/core/light.py tests/test_light.py
• git diff --check

[Osman-Kahraman]

Thank you for your contribution, but unfortunately it wasn't working your fix in my local machine. I tried this steps to tested it;

1. Create a Light instance
2. Set a custom light color (example: red, blue, green)
3. Render the light onto the scene
4. Observe the resulting light color

Can you try to fix it or give me proper way to test your changes in this pull request. Thanks...

@resolvicomai

[resolvicomai]

Thanks for testing it. I found the missing path: the first patch tinted direct Light(size, light_color=...) usage, but item lights created from items/info.json were still instantiating Light without passing the configured lights.RGB value.

I pushed commit 125693e to pass lights.RGB into the item light system and to keep an existing light system in sync with that value. I also added a regression test covering the Temp.decorate() path using a sample lights RGB config.

Validation run locally:

• .venv/bin/python -m pytest -q tests/test_light.py -> 2 passed
• .venv/bin/python -m compileall -q game_engine tests
• git diff --check

For manual verification, use an item entry with lights coords/size/RGB, for example RGB [255, 0, 0]. The rendered item light should now use that red tint instead of staying white.

[Osman-Kahraman]

Thanks for the changes. I've tested and it works perfectly.

[Osman-Kahraman]

Thanks

[Osman-Kahraman]

Good for testing case, I appreciate it...