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Simple workaround to make one way moving platforms work, fixes #9399

This commit is contained in:
Juan Linietsky 2018-11-02 16:22:23 -03:00
parent 64f649a80c
commit 414097ebd9
1 changed files with 13 additions and 0 deletions
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13
servers/physics_2d/space_2d_sw.cpp
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@ -737,6 +737,19 @@ bool Space2DSW::test_body_motion(Body2DSW *p_body, const Transform2D &p_from, co
cbk.valid_dir = body_shape_xform.get_axis(1).normalized();
cbk.valid_depth = p_margin; //only valid depth is the collision margin
cbk.invalid_by_dir = 0;
if (col_obj->get_type() == CollisionObject2DSW::TYPE_BODY) {
const Body2DSW *b = static_cast<const Body2DSW *>(col_obj);
if ((Physics2DServer::BODY_MODE_KINEMATIC || Physics2DServer::BODY_MODE_RIGID)) {
//fix for moving platforms, margin is increased by how much it moved in the given direction
Vector2 lv = b->get_linear_velocity();
//compute displacement from linear velocity
Vector2 motion = lv * Physics2DDirectBodyStateSW::singleton->step;
float motion_len = motion.length();
motion.normalize();
cbk.valid_depth += motion_len * MAX(motion.dot(-cbk.valid_dir), 0.0);
}
}
} else {
cbk.valid_dir = Vector2();
cbk.valid_depth = 0;