Pass UserData instead of CollisionHandler in PostSolveFunc. (#48)

Co-authored-by: Jon <[email protected]>

fix index out of range panic in ProcessComponents (#47)

* Fix index out of range panic in ProcessComponents

This fixes a regression introduced in commit f1e35a6 (modernize for loops 2).

When modernizing the for loop from traditional style to range syntax,
the manual i++ increment was not removed, causing a double-increment bug.

The for..range statement automatically increments the index variable,
so the manual i++ at line 606 caused the loop to skip indices and
eventually panic with 'index out of range'.

Fixes the panic that occurs when SleepTimeThreshold != INFINITY.

* Revert to original loop pattern for consistency

Instead of removing the manual i++ increment, revert the for loop to its
original pattern before PR #43. This maintains consistency with the
pre-modernization code structure where loops with conditional continue
statements use manual index management.

The original pattern was:
for i := 0; i < len(space.dynamicBodies); {
    if condition {
        continue  // Skip i++
    }
    i++  // Increment only when not skipping
}

fixes #45 lower Go version for Ebitengine (#46)

Merge pull request #43 from setanarut/modernize

Modernize for Go 1.24.4

Adds *Space ReindexShape (#39)

fix #33 NaN prevention not working

Merge pull request #30 from setanarut/master

Fixes (go-staticcheck problems)

fix #24 crash when using spatial hash

fix #23 implement shape query

shape: Add support for setting mass/density on Shapes (#19)