Axel Meyer e5a350fcb2 Fix load_textures overwriting tile_size with nil for variable-size atlases ...

When an atlas declares tile_size_px = null (variable-size tiles), the
load_textures call was overwriting the map's tile_size with nil, causing
an arithmetic error in draw_layer on the first render frame.

Guard the tile_size update so it only applies when tile_size_px is
non-nil; maps using variable-size atlases keep their tile_size from
the stub default (32) set at load time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-05-21 23:28:33 +02:00

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