some bullet wasm errors（A bug of how to use the _safe_delete）

[longchuan]

Cocos Creator version

3.8.4

System information

web，GLES2, GLES3

Issue description

RuntimeError: null function or function signature mismatch

RuntimeError: table index is out of bounds

RuntimeError: memory access out of bounds

Relevant error log output

Steps to reproduce

1、set a physics world with scene
2、get the scene result and reload the scene
3、reload about 1000 counts,found the errors

Minimal reproduction project

No response

[longchuan]

at Object.TriangleMesh_addTriangle (
看起来是cocos2BulletTriMesh这个方法有内存泄漏

[longchuan]

问题代码

private static readonly BulletBvhTriangleMeshShapeMap = new Map<number, BulletBvhTriangleMeshShape>();

    public static getBulletBvhTriangleMeshShape (key: number, mesh: Mesh): BulletBvhTriangleMeshShape {
        let newBulletBvhTriangleMeshShape!: BulletBvhTriangleMeshShape;
        if (BulletBvhTriangleMeshShape.BulletBvhTriangleMeshShapeMap.has(key)) { //can be improved
            newBulletBvhTriangleMeshShape = BulletBvhTriangleMeshShape.BulletBvhTriangleMeshShapeMap.get(key)!;
            newBulletBvhTriangleMeshShape.reference = true;
        } else {
            newBulletBvhTriangleMeshShape = new BulletBvhTriangleMeshShape(key, mesh);
            BulletBvhTriangleMeshShape.BulletBvhTriangleMeshShapeMap.set(key, newBulletBvhTriangleMeshShape);
        }
        return newBulletBvhTriangleMeshShape;
    }

[longchuan]

How the _safe_delete works with bullet?There is an opposite usage.
@minggo

[minggo]

How did you reload the scene? It is better you provide a demo to reproduce it.

[minggo]

And you posted many information above, but i can't get what you want to express. It seems it said different things.

[longchuan]

And you posted many information above, but i can't get what you want to express. It seems it said different things.

Solved the problem with editing the safedelete

[minggo]

Can i know how did you fix it?

[longchuan]

Can i know how did you fix it?

#17842

[minggo]

Thank you, i will take a look.