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Fix move_and_collide causing sliding on slopes

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Make sure the direction of the motion is preserved, unless the depth is
higher than the margin, which means the body needs depenetration in any
direction.

Also changed move_and_slide to avoid sliding on the first motion, in
order to avoid issues with unstable position on ground when jumping.

Co-authored-by: fabriceci <fabricecipolla@gmail.com>
This commit is contained in:
PouleyKetchoupp 2021-06-24 19:25:26 -07:00
parent 92f20fd70e
commit 9758a75221
10 changed files with 138 additions and 25 deletions
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servers/physics_2d/space_2d_sw.cpp
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@ -1142,6 +1142,9 @@ bool Space2DSW::test_body_motion(Body2DSW *p_body, const Transform2D &p_from, co
r_result->collision_local_shape = rcd.best_local_shape;
r_result->collision_normal = rcd.best_normal;
r_result->collision_point = rcd.best_contact;
r_result->collision_depth = rcd.best_len;
r_result->collision_safe_fraction = safe;
r_result->collision_unsafe_fraction = unsafe;
r_result->collider_metadata = rcd.best_object->get_shape_metadata(rcd.best_shape);
const Body2DSW *body = static_cast<const Body2DSW *>(rcd.best_object);