Make side sliding collision

Questions
1

So I am working on a wardrobe configurator and I have integrated working collision using MeshBVH the only issue I am facing is that when 2 objects collide it completely makes the drag to stop, I want it to move in a way that if one side is colliding it doesn’t move in that direction but should move in the other directions. Here’s the code I have:

if (!e.object || !e.object.matrixWorld) return;
    if (e.object.userData.type == "drawer") {
      const targetPosition = new THREE.Vector3(
        e.object.position.x,
        e.object.position.y,
        e.object.position.z
      );
      let collisionDetected = false;

      for (const collidableMesh of collidableMeshList) {
        if (collidableMesh === e.object) continue;

        e.object.updateMatrixWorld(true);
        collidableMesh.updateMatrixWorld(true);

        const invertedMatrix = new THREE.Matrix4()
          .copy(e.object.matrixWorld)
          .invert();
        const relativeMatrix = new THREE.Matrix4().multiplyMatrices(
          invertedMatrix,
          collidableMesh.matrixWorld
        );

        if (
          e.object.geometry.boundsTree.intersectsGeometry(
            collidableMesh.geometry,
            relativeMatrix
          )
        ) {
          collisionDetected = true;
          break;
        }
      }

      if (collisionDetected) {
        e.object.position.copy(previousPosition);
        updateHandlePosition(e.object, previousPosition);
      } else {
        previousPosition.copy(e.object.position);
        updateHandlePosition(e.object, e.object.position);
      }
    }

function updateHandlePosition(drawer, position) {
  drawer.children.forEach((child) => {
    child.position.set(
      position.x + Math.sign(position.x) * drawer.geometry.boundingBox.min.x,
      position.y,
      position.z
    );
    child.updateMatrix();
  });
}

2 
move the object on both x and z movement
check collision.. if hit.. 
      undo the move
      try moving only x movement..
      check collision... if hit
            undo the move.. try moving only z...
            check collision if hit:
                   give up.. undo the move
1 Like
3

Hi thrax, how are you, thanks for the guide got it working

1 Like
4

Niiice! :smiley: