forked from enlightenment/efl
EPhysics: constraint recalc
Just making it possible to fix world rate set. This code will be modified when all constraints are added as generic and modified later. SVN revision: 75333
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@ -17,8 +17,97 @@ struct _EPhysics_Constraint {
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btTypedConstraint *bt_constraint;
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EPhysics_World *world;
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EPhysics_Constraint_Type type;
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struct {
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EPhysics_Body *body1;
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EPhysics_Body *body2;
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Evas_Coord anchor_b1_x;
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Evas_Coord anchor_b1_y;
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Evas_Coord anchor_b2_x;
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Evas_Coord anchor_b2_y;
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} p2p;
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};
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/* FIXME: it shouldn't be this way.
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* All constraints should be generic and have all these options
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* set after add().
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*/
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static Eina_Bool
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_ephysics_constraint_p2p_set(EPhysics_Constraint *constraint, double rate)
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{
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if (!constraint->p2p.body2)
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constraint->bt_constraint = new btPoint2PointConstraint(
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*ephysics_body_rigid_body_get(constraint->p2p.body1),
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btVector3(constraint->p2p.anchor_b1_x / rate,
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constraint->p2p.anchor_b1_y / rate, 0));
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else
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constraint->bt_constraint = new btPoint2PointConstraint(
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*ephysics_body_rigid_body_get(constraint->p2p.body1),
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*ephysics_body_rigid_body_get(constraint->p2p.body2),
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btVector3(constraint->p2p.anchor_b1_x / rate,
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constraint->p2p.anchor_b1_y / rate, 0),
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btVector3(constraint->p2p.anchor_b2_x / rate,
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constraint->p2p.anchor_b2_y / rate, 0));
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if (!constraint->bt_constraint)
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{
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ERR("Failed to create a btConstraint");
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free(constraint);
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return EINA_FALSE;
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}
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constraint->type = EPHYSICS_CONSTRAINT_P2P;
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constraint->world = ephysics_body_world_get(constraint->p2p.body1);
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ephysics_world_constraint_add(constraint->world, constraint,
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constraint->bt_constraint);
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return EINA_TRUE;
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}
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static void
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_ephysics_constraint_p2p_recalc(EPhysics_Constraint *constraint, double rate)
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{
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ephysics_world_constraint_del(constraint->world, constraint,
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constraint->bt_constraint);
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delete constraint->bt_constraint;
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_ephysics_constraint_p2p_set(constraint, rate);
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}
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static void
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_ephysics_constraint_slider_linear_limit_set(EPhysics_Constraint *constraint, Evas_Coord left_x, Evas_Coord under_y, Evas_Coord right_x, Evas_Coord above_y, double rate)
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{
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btGeneric6DofConstraint *slider_constraint;
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slider_constraint = (btGeneric6DofConstraint *)constraint->bt_constraint;
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rate = ephysics_world_rate_get(constraint->world);
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left_x = (left_x) / rate;
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right_x = (right_x) / rate;
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under_y = (under_y) / rate;
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above_y = (above_y) / rate;
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slider_constraint->setLinearLowerLimit(btVector3(-left_x, -under_y, 0));
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slider_constraint->setLinearUpperLimit(btVector3(right_x, above_y, 0));
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}
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void
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ephysics_constraint_recalc(EPhysics_Constraint *constraint, double rate)
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{
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Evas_Coord left_x, under_y, right_x, above_y;
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if (constraint->type == EPHYSICS_CONSTRAINT_P2P)
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{
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_ephysics_constraint_p2p_recalc(constraint, rate);
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return;
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}
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ephysics_constraint_slider_linear_limit_get(constraint, &left_x, &under_y,
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&right_x, &above_y);
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_ephysics_constraint_slider_linear_limit_set(constraint, left_x, under_y,
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right_x, above_y, rate);
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}
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EAPI EPhysics_Constraint *
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ephysics_constraint_slider_add(EPhysics_Body *body)
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{
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@ -62,9 +151,6 @@ ephysics_constraint_slider_add(EPhysics_Body *body)
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EAPI void
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ephysics_constraint_slider_linear_limit_set(EPhysics_Constraint *constraint, Evas_Coord left_x, Evas_Coord under_y, Evas_Coord right_x, Evas_Coord above_y)
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{
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btGeneric6DofConstraint *slider_constraint;
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int rate;
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if (!constraint)
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{
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ERR("Can't set constraint's linear limit, constraint is null.");
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@ -77,17 +163,9 @@ ephysics_constraint_slider_linear_limit_set(EPhysics_Constraint *constraint, Eva
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return;
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}
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slider_constraint = (btGeneric6DofConstraint *)constraint->bt_constraint;
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rate = ephysics_world_rate_get(constraint->world);
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left_x = (left_x) / rate;
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right_x = (right_x) / rate;
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under_y = (under_y) / rate;
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above_y = (above_y) / rate;
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slider_constraint->setLinearLowerLimit(btVector3(-left_x, -under_y, 0));
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slider_constraint->setLinearUpperLimit(btVector3(right_x, above_y, 0));
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_ephysics_constraint_slider_linear_limit_set(
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constraint, left_x, under_y, right_x, above_y,
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ephysics_world_rate_get(constraint->world));
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}
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EAPI void
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@ -184,7 +262,6 @@ EAPI EPhysics_Constraint *
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ephysics_constraint_p2p_add(EPhysics_Body *body1, EPhysics_Body *body2, Evas_Coord anchor_b1_x, Evas_Coord anchor_b1_y, Evas_Coord anchor_b2_x, Evas_Coord anchor_b2_y)
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{
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EPhysics_Constraint *constraint;
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int rate;
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if (!body1)
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{
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@ -207,30 +284,17 @@ ephysics_constraint_p2p_add(EPhysics_Body *body1, EPhysics_Body *body2, Evas_Coo
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return NULL;
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}
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rate = ephysics_world_rate_get(ephysics_body_world_get(body1));
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constraint->p2p.body1 = body1;
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constraint->p2p.body2 = body2;
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constraint->p2p.anchor_b1_x = anchor_b1_x;
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constraint->p2p.anchor_b1_y = anchor_b1_y;
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constraint->p2p.anchor_b2_x = anchor_b2_x;
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constraint->p2p.anchor_b2_y = anchor_b2_y;
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if (!body2)
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constraint->bt_constraint = new btPoint2PointConstraint(
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*ephysics_body_rigid_body_get(body1),
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btVector3(anchor_b1_x / rate, anchor_b1_y / rate, 0));
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else
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constraint->bt_constraint = new btPoint2PointConstraint(
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*ephysics_body_rigid_body_get(body1),
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*ephysics_body_rigid_body_get(body2),
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btVector3(anchor_b1_x / rate, anchor_b1_y / rate, 0),
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btVector3(anchor_b2_x / rate, anchor_b2_y / rate, 0));
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if (!constraint->bt_constraint)
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{
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ERR("Failed to create a btConstraint");
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free(constraint);
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return NULL;
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}
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constraint->type = EPHYSICS_CONSTRAINT_P2P;
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constraint->world = ephysics_body_world_get(body1);
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ephysics_world_constraint_add(constraint->world, constraint,
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constraint->bt_constraint);
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if (!_ephysics_constraint_p2p_set(
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constraint, ephysics_world_rate_get(ephysics_body_world_get(
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constraint->p2p.body1))))
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return NULL;
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INF("Constraint added.");
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return constraint;
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@ -81,6 +81,7 @@ struct _EPhysics_Body {
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extern int _ephysics_log_dom;
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/* World */
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int ephysics_world_init(void);
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int ephysics_world_shutdown(void);
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Eina_Bool ephysics_world_body_add(EPhysics_World *world, EPhysics_Body *body);
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@ -92,8 +93,8 @@ void ephysics_world_boundary_set(EPhysics_World *world, EPhysics_World_Boundary
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EPhysics_Body *ephysics_world_boundary_get(const EPhysics_World *world, EPhysics_World_Boundary boundary);
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Eina_Bool ephysics_world_bodies_outside_autodel_get(const EPhysics_World *world);
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/* Body */
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Eina_Bool ephysics_body_filter_collision(EPhysics_Body *body0, EPhysics_Body *body1);
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void ephysics_body_evas_object_update_select(EPhysics_Body *body);
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void ephysics_orphan_body_del(EPhysics_Body *body);
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void ephysics_body_contact_processed(EPhysics_Body *body, EPhysics_Body *contact_body, btVector3 position);
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@ -101,14 +102,19 @@ btRigidBody *ephysics_body_rigid_body_get(const EPhysics_Body *body);
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void ephysics_body_active_set(EPhysics_Body *body, Eina_Bool active);
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void ephysics_body_recalc(EPhysics_Body *body, double rate);
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/* Camera */
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EPhysics_Camera *ephysics_camera_add(EPhysics_World *world);
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void ephysics_camera_del(EPhysics_Camera *camera);
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void ephysics_camera_moved_set(EPhysics_Camera *camera, Eina_Bool moved);
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Eina_Bool ephysics_camera_moved_get(const EPhysics_Camera *camera);
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void ephysics_camera_target_moved(EPhysics_Camera *camera, EPhysics_Body *body);
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/* Shape */
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const Eina_Inlist *ephysics_shape_points_get(const EPhysics_Shape *shape);
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/* Constraint */
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void ephysics_constraint_recalc(EPhysics_Constraint *constraint, double rate);
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#ifdef __cplusplus
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}
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#endif
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