test_constraint.c

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test_constraint.c
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ephysics_test.h"
static void
_constraint_set(Test_Data *test_data, EPhysics_Body *body1, EPhysics_Body *body2)
{
EPhysics_Constraint *constraint;
Evas_Coord b1x, b1y, b1z, b1w, b1h, b1d, b2x, b2y, b2z, b2w, b2h, b2d;
ephysics_body_geometry_get(body1, &b1x, &b1y, &b1z, &b1w, &b1h, &b1d);
ephysics_body_geometry_get(body2, &b2x, &b2y, &b2z, &b2w, &b2h, &b2d);
constraint = ephysics_constraint_linked_add(body1, body2);
ephysics_constraint_anchor_set(constraint, b1x + b1w / 2, b1y + b1h / 2 + 100,
b1z, b2x + b2w / 2, b2y + b2h / 2, b2z);
test_data->constraints = eina_list_append(test_data->constraints, constraint);
}
static void
_world_populate(Test_Data *test_data)
{
EPhysics_Body *box_body1, *box_body2;
Evas_Object *box1, *box2, *sh1, *sh2;
sh1 = elm_layout_add(test_data->win);
elm_layout_file_set(
sh1, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "shadow-cube");
evas_object_move(sh1, WIDTH / 3, FLOOR_Y);
evas_object_resize(sh1, 70, 3);
evas_object_show(sh1);
test_data->evas_objs = eina_list_append(test_data->evas_objs, sh1);
box1 = elm_image_add(test_data->win);
elm_image_file_set(
box1, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "blue-cube");
evas_object_move(box1, WIDTH / 3, HEIGHT / 8);
evas_object_resize(box1, 70, 70);
evas_object_show(box1);
test_data->evas_objs = eina_list_append(test_data->evas_objs, box1);
box_body1 = ephysics_body_box_add(test_data->world);
ephysics_body_evas_object_set(box_body1, box1, EINA_TRUE);
ephysics_body_event_callback_add(box_body1, EPHYSICS_CALLBACK_BODY_UPDATE,
update_object_cb, sh1);
ephysics_body_restitution_set(box_body1, 0.3);
ephysics_body_friction_set(box_body1, 0.1);
test_data->bodies = eina_list_append(test_data->bodies, box_body1);
sh2 = elm_layout_add(test_data->win);
elm_layout_file_set(
sh2, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "shadow-cube");
evas_object_move(sh2, WIDTH / 3 + 110, FLOOR_Y);
evas_object_resize(sh2, 70, 3);
evas_object_show(sh2);
test_data->evas_objs = eina_list_append(test_data->evas_objs, sh2);
box2 = elm_image_add(test_data->win);
elm_image_file_set(
box2, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "purple-cube");
evas_object_move(box2, WIDTH / 3 + 110, HEIGHT / 8);
evas_object_resize(box2, 70, 70);
evas_object_show(box2);
test_data->evas_objs = eina_list_append(test_data->evas_objs, box2);
box_body2 = ephysics_body_box_add(test_data->world);
ephysics_body_evas_object_set(box_body2, box2, EINA_TRUE);
ephysics_body_mass_set(box_body2, 5);
ephysics_body_event_callback_add(box_body2, EPHYSICS_CALLBACK_BODY_UPDATE,
update_object_cb, sh2);
ephysics_body_restitution_set(box_body2, 0.5);
ephysics_body_friction_set(box_body2, 0.1);
test_data->bodies = eina_list_append(test_data->bodies, box_body2);
_constraint_set(test_data, box_body1, box_body2);
}
static void
_restart(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
{
Test_Data *test_data = data;
DBG("Restart pressed");
test_clean(test_data);
_world_populate(test_data);
}
void
test_constraint(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
EPhysics_Body *boundary;
EPhysics_World *world;
Test_Data *test_data;
if (!ephysics_init())
return;
test_data = test_data_new();
test_win_add(test_data, "Constraint", EINA_TRUE);
elm_object_signal_emit(test_data->layout, "borders,show", "ephysics_test");
elm_layout_signal_callback_add(test_data->layout, "restart", "test-theme",
_restart, test_data);
world = ephysics_world_new();
ephysics_world_render_geometry_set(world, 50, 40, -50,
WIDTH - 100, FLOOR_Y - 40, DEPTH);
test_data->world = world;
boundary = ephysics_body_bottom_boundary_add(test_data->world);
ephysics_body_restitution_set(boundary, 0.65);
ephysics_body_friction_set(boundary, 3);
_world_populate(test_data);
}
Evas_Coord
int Evas_Coord
Type used for coordinates (in pixels, int).
Definition: Evas_Common.h:116
ephysics_body_evas_object_set
EAPI void ephysics_body_evas_object_set(EPhysics_Body *body, Evas_Object *evas_obj, Eina_Bool use_obj_pos)
Set an evas object to a physics body.
ephysics_body_bottom_boundary_add
EAPI EPhysics_Body * ephysics_body_bottom_boundary_add(EPhysics_World *world)
Create a physic bottom boundary.
ephysics_body_box_add
EAPI EPhysics_Body * ephysics_body_box_add(EPhysics_World *world)
Create a new box physics body.
ephysics_body_restitution_set
EAPI void ephysics_body_restitution_set(EPhysics_Body *body, double restitution)
Set body's coefficient of restitution.
ephysics_body_friction_set
EAPI void ephysics_body_friction_set(EPhysics_Body *body, double friction)
Set body's friction.
ephysics_body_mass_set
EAPI void ephysics_body_mass_set(EPhysics_Body *body, double mass)
Set body's mass.
ephysics_body_event_callback_add
EAPI void ephysics_body_event_callback_add(EPhysics_Body *body, EPhysics_Callback_Body_Type type, EPhysics_Body_Event_Cb func, const void *data)
Register a callback to a type of physics body event.
ephysics_body_geometry_get
EAPI void ephysics_body_geometry_get(const EPhysics_Body *body, Evas_Coord *x, Evas_Coord *y, Evas_Coord *z, Evas_Coord *w, Evas_Coord *h, Evas_Coord *d)
Get physics body position.
EPhysics_Body
struct _EPhysics_Body EPhysics_Body
Body handle, represents an object on EPhysics world.
Definition: EPhysics.h:655
EPHYSICS_CALLBACK_BODY_UPDATE
@ EPHYSICS_CALLBACK_BODY_UPDATE
Body being updated.
Definition: EPhysics.h:2263
EPhysics_Constraint
struct _EPhysics_Constraint EPhysics_Constraint
Constraint handle, used to limit bodies movements.
Definition: EPhysics.h:4531
ephysics_constraint_linked_add
EAPI EPhysics_Constraint * ephysics_constraint_linked_add(EPhysics_Body *body1, EPhysics_Body *body2)
Create a new constraint between 2 bodies(Point to Point constraint).
ephysics_constraint_anchor_set
EAPI void ephysics_constraint_anchor_set(EPhysics_Constraint *constraint, Evas_Coord anchor_b1_x, Evas_Coord anchor_b1_y, Evas_Coord anchor_b1_z, Evas_Coord anchor_b2_x, Evas_Coord anchor_b2_y, Evas_Coord anchor_b2_z)
Change the constraints anchors values on both constrained bodies.
ephysics_world_new
EAPI EPhysics_World * ephysics_world_new(void)
Create a new physics world.
EPhysics_World
struct _EPhysics_World EPhysics_World
World handle, most basic type of EPhysics.
Definition: EPhysics.h:901
ephysics_world_render_geometry_set
EAPI void ephysics_world_render_geometry_set(EPhysics_World *world, Evas_Coord x, Evas_Coord y, Evas_Coord z, Evas_Coord w, Evas_Coord h, Evas_Coord d)
Set dimensions of rendered area to be take on account by default updates.
ephysics_init
EAPI int ephysics_init(void)
Initialize EPhysics.
eina_list_append
EINA_API Eina_List * eina_list_append(Eina_List *list, const void *data)
Appends the given data to the given linked list.
Definition: eina_list.c:584
EINA_TRUE
#define EINA_TRUE
boolean value TRUE (numerical value 1)
Definition: eina_types.h:539
elm_object_signal_emit
void elm_object_signal_emit(Evas_Object *obj, const char *emission, const char *source)
Send a signal to the widget edje object.
Definition: elm_main.c:1854
elm_image_add
Evas_Object * elm_image_add(Evas_Object *parent)
Add a new image to the parent.
Definition: efl_ui_image.c:2735
elm_image_file_set
Eina_Bool elm_image_file_set(Evas_Object *obj, const char *file, const char *group)
Set the file that will be used as the image's source.
Definition: efl_ui_image.c:2435
elm_layout_add
Evas_Object * elm_layout_add(Evas_Object *parent)
Add a new layout to the parent.
Definition: efl_ui_layout.c:3067
elm_layout_file_set
Eina_Bool elm_layout_file_set(Eo *obj, const char *file, const char *group)
Set the file that will be used as layout.
Definition: efl_ui_layout.c:3074
elm_layout_signal_callback_add
void elm_layout_signal_callback_add(Eo *obj, const char *emission, const char *source, Edje_Signal_Cb func, void *data)
Add a callback for a (Edje) signal emitted by a layout widget's underlying Edje object.
Definition: efl_ui_layout.c:3316
evas_object_show
EVAS_API void evas_object_show(Evas_Object *eo_obj)
Makes the given Evas object visible.
Definition: evas_object_main.c:1814
evas_object_move
EVAS_API void evas_object_move(Evas_Object *obj, Evas_Coord x, Evas_Coord y)
Move the given Evas object to the given location inside its canvas' viewport.
Definition: evas_object_main.c:1171
Evas_Object
Efl_Canvas_Object Evas_Object
An Evas Object handle.
Definition: Evas_Common.h:185
evas_object_resize
EVAS_API void evas_object_resize(Evas_Object *obj, Evas_Coord w, Evas_Coord h)
Changes the size of the given Evas object.
Definition: evas_object_main.c:1236