forked from enlightenment/efl
EPhysics: fix collision detection point
Also improve docs and test. SVN revision: 74504
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@ -25,11 +25,12 @@ _collision_cb(void *data, EPhysics_Body *body __UNUSED__, void *event_info)
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if (contact_body != collision_data->sphere2) return;
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ephysics_body_collision_position_get(collision, &x, &y);
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INF("Collision Detected");
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evas_object_move(collision_data->impact, x, y);
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evas_object_move(collision_data->impact, x - 10, y - 40);
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elm_object_signal_emit(collision_data->impact, "impact,show",
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"ephysics_test");
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INF("Collision Detected at (%i, %i)", x, y);
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}
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static void
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@ -1467,9 +1467,11 @@ EAPI void ephysics_body_damping_get(const EPhysics_Body *body, double *linear_da
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* If not added to any group the body will collide against any other body.
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* Otherwise this body will collide only against those in the same groups.
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*
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* If @p body was already part of @p group, nothing will happen.
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*
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* @param body The body to be added to @p group.
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* @param group The group the @p body will belong to.
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* @return EINA_TRUE on success, EINA_FALSE otherwise.
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* @return @c EINA_TRUE if body is added to group, or @c EINA_FALSE on error.
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*
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* @see ephysics_body_collision_group_del()
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* @see ephysics_body_collision_group_list_get()
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@ -1484,9 +1486,12 @@ EAPI Eina_Bool ephysics_body_collision_group_add(EPhysics_Body *body, const char
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* This @p body will not belong to @p group any more and the collisions filter
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* must take that on account.
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*
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* If @p body wasn't part of @p group before, nothing will happen.
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*
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* @param body The body to be removed from @p group.
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* @param group The group @p body must be removed from.
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* @return EINA_TRUE on success, EINA_FALSE otherwise.
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* @return @c EINA_TRUE if body is removed from group, or @c EINA_FALSE on
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* error.
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*
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* @see ephysics_body_collision_group_add()
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* @ingroup EPhysics_Body
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@ -75,8 +75,6 @@ ephysics_body_filter_collision(EPhysics_Body *body0, EPhysics_Body *body1)
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EAPI Eina_Bool
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ephysics_body_collision_group_add(EPhysics_Body *body, const char *group)
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{
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Eina_List *l;
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void *grp;
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Eina_Stringshare *group_str;
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if (!body)
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@ -86,13 +84,11 @@ ephysics_body_collision_group_add(EPhysics_Body *body, const char *group)
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}
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group_str = eina_stringshare_add(group);
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EINA_LIST_FOREACH(body->collision_groups, l, grp)
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if (eina_list_data_find(body->collision_groups, group_str))
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{
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if (grp == group_str)
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{
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eina_stringshare_del(group_str);
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return EINA_TRUE;
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}
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INF("Body already added to group: %s", group);
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eina_stringshare_del(group_str);
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return EINA_TRUE;
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}
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body->collision_groups = eina_list_append(body->collision_groups, group_str);
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@ -111,6 +107,13 @@ ephysics_body_collision_group_del(EPhysics_Body *body, const char *group)
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}
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group_str = eina_stringshare_add(group);
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if (!eina_list_data_find(body->collision_groups, group_str))
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{
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INF("Body isn't part of group: %s", group);
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eina_stringshare_del(group_str);
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return EINA_TRUE;
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}
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body->collision_groups = eina_list_remove(body->collision_groups, group_str);
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eina_stringshare_del(group_str);
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eina_stringshare_del(group_str);
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@ -331,17 +334,17 @@ ephysics_body_evas_object_update_select(EPhysics_Body *body)
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}
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static void
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ephysics_body_collision_set(EPhysics_Body_Collision *collision, EPhysics_Body *contact_body, btVector3 position)
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_ephysics_body_collision_set(EPhysics_Body_Collision *collision, EPhysics_Body *contact_body, btVector3 position)
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{
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double rate;
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int height;
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int wy, wh;
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EPhysics_World *world = contact_body->world;
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ephysics_world_render_geometry_get(world, NULL, NULL, NULL, &height);
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ephysics_world_render_geometry_get(world, NULL, &wy, NULL, &wh);
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rate = ephysics_world_rate_get(world);
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collision->contact_body = contact_body;
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collision->x = position.getX() * rate;
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collision->y = height - (position.getY() * rate);
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collision->y = wh + wy - (position.getY() * rate);
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}
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EAPI void
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@ -373,7 +376,6 @@ void
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ephysics_body_contact_processed(EPhysics_Body *body, EPhysics_Body *contact_body, btVector3 position)
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{
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EPhysics_Body_Callback *cb;
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EPhysics_Body_Collision *collision;
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if ((!body) || (!contact_body))
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return;
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@ -382,14 +384,18 @@ ephysics_body_contact_processed(EPhysics_Body *body, EPhysics_Body *contact_body
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{
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if (cb->type == EPHYSICS_CALLBACK_BODY_COLLISION)
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{
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collision = (EPhysics_Body_Collision*)malloc(
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sizeof(EPhysics_Body_Collision));
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EPhysics_Body_Collision *collision;
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collision = (EPhysics_Body_Collision *)malloc(
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sizeof(EPhysics_Body_Collision));
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if (!collision)
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{
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ERR("Can't allocate collision data structure.");
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continue;
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}
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ephysics_body_collision_set(collision, contact_body, position);
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_ephysics_body_collision_set(collision, contact_body, position);
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cb->func(cb->data, body, collision);
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free(collision);
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}
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