test_rotating_forever.c
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ephysics_test.h"
static Eina_Bool
_rotate_cb(void *data)
{
EPhysics_Quaternion *quat_prev, quat_delta, quat;
EPhysics_Body *body = data;
quat_prev = ephysics_body_rotation_get(body, NULL);
ephysics_quaternion_set(&quat_delta, 0, 0, -0.15, 0.98);
ephysics_quaternion_normalize(&quat_delta);
ephysics_body_rotation_set(
body, ephysics_quaternion_multiply(&quat_delta, quat_prev, &quat));
free(quat_prev);
return EINA_TRUE;
}
static Eina_Bool
_increase_torque_cb(void *data)
{
EPhysics_Body *body = data;
Evas_Object *obj;
ephysics_body_torque_apply(body, 0, 0, 2);
obj = ephysics_body_evas_object_get(body);
evas_object_data_set(obj, "increase_timer", NULL);
return EINA_FALSE;
}
static Eina_Bool
_stop_torque_cb(void *data)
{
EPhysics_Body *body = data;
Evas_Object *obj;
ephysics_body_forces_clear(body);
obj = ephysics_body_evas_object_get(body);
evas_object_data_set(obj, "stop_timer", NULL);
return EINA_FALSE;
}
static void
_del_cb(void *data, EPhysics_Body *body __UNUSED__, void *event_info __UNUSED__)
{
ecore_timer_del(data);
}
static void
_del_torque_cb(void *data __UNUSED__, Evas *e __UNUSED__, Evas_Object *obj, void *event_info __UNUSED__)
{
Ecore_Timer *timer;
timer = evas_object_data_get(obj, "increase_timer");
if (timer)
ecore_timer_del(timer);
timer = evas_object_data_get(obj, "stop_timer");
if (timer)
ecore_timer_del(timer);
}
static void
_update_object_cb(void *data __UNUSED__, EPhysics_Body *body, void *event_info __UNUSED__)
{
double rx, ry, rz, rw, vrot, torque;
EPhysics_Quaternion quat;
ephysics_body_angular_velocity_get(body, NULL, NULL, &vrot);
ephysics_body_torques_get(body, NULL, NULL, &torque);
ephysics_body_rotation_get(body, &quat);
ephysics_quaternion_get(&quat, &rx, &ry, &rz, &rw);
ephysics_body_evas_object_update(body);
DBG("body: %p, rot: (%lf, %lf, %lf, %lf), vrot: %lf, torque: %lf", body,
rx, ry, rz, rw, vrot, torque);
}
static void
_world_populate(Test_Data *test_data)
{
EPhysics_Body *body;
Ecore_Timer *timer;
Evas_Object *cube;
cube = elm_image_add(test_data->win);
elm_image_file_set(
cube, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "blue-cube");
evas_object_move(cube, WIDTH / 3, HEIGHT / 2 - 30);
evas_object_resize(cube, 70, 70);
evas_object_show(cube);
test_data->evas_objs = eina_list_append(test_data->evas_objs, cube);
body = ephysics_body_box_add(test_data->world);
ephysics_body_evas_object_set(body, cube, EINA_TRUE);
test_data->bodies = eina_list_append(test_data->bodies, body);
ephysics_body_event_callback_add(body,
EPHYSICS_CALLBACK_BODY_UPDATE,
_update_object_cb, NULL);
ephysics_body_torque_impulse_apply(body, 0, 0, 1);
cube = elm_image_add(test_data->win);
elm_image_file_set(
cube, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "purple-cube");
evas_object_move(cube, WIDTH / 3, FLOOR_Y - 70);
evas_object_resize(cube, 70, 70);
evas_object_show(cube);
test_data->evas_objs = eina_list_append(test_data->evas_objs, cube);
body = ephysics_body_box_add(test_data->world);
ephysics_body_evas_object_set(body, cube, EINA_TRUE);
test_data->bodies = eina_list_append(test_data->bodies, body);
ephysics_body_event_callback_add(body,
EPHYSICS_CALLBACK_BODY_UPDATE,
_update_object_cb, NULL);
ephysics_body_impulse_apply(body, 30, 0, 0, 0, -10, 0);
cube = elm_image_add(test_data->win);
elm_image_file_set(
cube, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "purple-cube");
evas_object_move(cube, WIDTH / 3, 60);
evas_object_resize(cube, 70, 70);
evas_object_show(cube);
test_data->evas_objs = eina_list_append(test_data->evas_objs, cube);
body = ephysics_body_box_add(test_data->world);
ephysics_body_evas_object_set(body, cube, EINA_TRUE);
test_data->bodies = eina_list_append(test_data->bodies, body);
ephysics_body_event_callback_add(body,
EPHYSICS_CALLBACK_BODY_UPDATE,
_update_object_cb, NULL);
timer = ecore_timer_add(1, _rotate_cb, body);
ephysics_body_event_callback_add(body,
EPHYSICS_CALLBACK_BODY_DEL,
_del_cb, timer);
cube = elm_image_add(test_data->win);
elm_image_file_set(
cube, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "blue-cube");
evas_object_move(cube, WIDTH * 2 / 3, 60);
evas_object_resize(cube, 70, 70);
evas_object_show(cube);
test_data->evas_objs = eina_list_append(test_data->evas_objs, cube);
body = ephysics_body_box_add(test_data->world);
ephysics_body_evas_object_set(body, cube, EINA_TRUE);
test_data->bodies = eina_list_append(test_data->bodies, body);
ephysics_body_event_callback_add(body,
EPHYSICS_CALLBACK_BODY_UPDATE,
_update_object_cb, NULL);
ephysics_body_torque_apply(body, 0, 0, 2);
evas_object_event_callback_add(cube, EVAS_CALLBACK_DEL,
_del_torque_cb, NULL);
timer = ecore_timer_add(3, _increase_torque_cb, body);
evas_object_data_set(cube, "increase_timer", timer);
timer = ecore_timer_add(5, _stop_torque_cb, body);
evas_object_data_set(cube, "stop_timer", timer);
}
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_rotating_forever(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
EPhysics_World *world;
Test_Data *test_data;
if (!ephysics_init())
return;
test_data = test_data_new();
test_win_add(test_data, "Rotating Forever", 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;
ephysics_world_gravity_set(world, 0, 0, 0);
_world_populate(test_data);
}
EVAS_CALLBACK_DEL
@ EVAS_CALLBACK_DEL
Object Being Deleted (called before Free)
Definition: Evas_Common.h:439
ephysics_body_rotation_set
EAPI void ephysics_body_rotation_set(EPhysics_Body *body, EPhysics_Quaternion *quat)
Set body's rotation.
ephysics_body_torque_apply
EAPI void ephysics_body_torque_apply(EPhysics_Body *body, double torque_x, double torque_y, double torque_z)
Apply a torque over a body.
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_evas_object_get
EAPI Evas_Object * ephysics_body_evas_object_get(const EPhysics_Body *body)
Get the evas object associated to a physics body.
ephysics_body_angular_velocity_get
EAPI void ephysics_body_angular_velocity_get(const EPhysics_Body *body, double *x, double *y, double *z)
Get body's angular velocity on x, y and z axes.
ephysics_body_torque_impulse_apply
EAPI void ephysics_body_torque_impulse_apply(EPhysics_Body *body, double pitch, double yaw, double roll)
Apply a torque impulse over a body.
ephysics_body_evas_object_update
EAPI void ephysics_body_evas_object_update(EPhysics_Body *body)
Update the evas object associated to the body.
ephysics_body_torques_get
EAPI void ephysics_body_torques_get(const EPhysics_Body *body, double *x, double *y, double *z)
Get physics body torques.
ephysics_body_forces_clear
EAPI void ephysics_body_forces_clear(EPhysics_Body *body)
Clear all the forces applied to a body.
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_impulse_apply
EAPI void ephysics_body_impulse_apply(EPhysics_Body *body, double x, double y, double z, Evas_Coord pos_x, Evas_Coord pos_y, Evas_Coord pos_z)
Apply an impulse over a body.
ephysics_body_rotation_get
EAPI EPhysics_Quaternion * ephysics_body_rotation_get(const EPhysics_Body *body, EPhysics_Quaternion *rotation)
Get body's rotation quaternion.
EPhysics_Body
struct _EPhysics_Body EPhysics_Body
Body handle, represents an object on EPhysics world.
Definition: EPhysics.h:655
ephysics_body_box_add
EAPI EPhysics_Body * ephysics_body_box_add(EPhysics_World *world)
Create a new box physics body.
EPHYSICS_CALLBACK_BODY_DEL
@ EPHYSICS_CALLBACK_BODY_DEL
Body being deleted (called before free)
Definition: EPhysics.h:2265
EPHYSICS_CALLBACK_BODY_UPDATE
@ EPHYSICS_CALLBACK_BODY_UPDATE
Body being updated.
Definition: EPhysics.h:2263
ephysics_quaternion_get
EAPI void ephysics_quaternion_get(const EPhysics_Quaternion *quat, double *x, double *y, double *z, double *w)
Get quaternion values.
ephysics_quaternion_multiply
EAPI EPhysics_Quaternion * ephysics_quaternion_multiply(const EPhysics_Quaternion *quat1, const EPhysics_Quaternion *quat2, EPhysics_Quaternion *result)
Multiply two quaternions.
ephysics_quaternion_set
EAPI void ephysics_quaternion_set(EPhysics_Quaternion *quat, double x, double y, double z, double w)
Set quaternion values.
ephysics_quaternion_normalize
EAPI void ephysics_quaternion_normalize(EPhysics_Quaternion *quat)
Normalize the quaternion.
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_gravity_set
EAPI void ephysics_world_gravity_set(EPhysics_World *world, double gx, double gy, double gz)
Set world gravity in the 3 axes (x, y, z).
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.
ecore_timer_add
Ecore_Timer * ecore_timer_add(double in, Ecore_Task_Cb func, const void *data)
Creates a timer to call the given function in the given period of time.
Definition: ecore_timer.c:189
ecore_timer_del
void * ecore_timer_del(Ecore_Timer *timer)
Deletes the specified timer from the timer list.
Definition: ecore_timer.c:238
Ecore_Timer
Eo Ecore_Timer
A handle for timers.
Definition: Ecore_Common.h:3065
DBG
#define DBG(...)
Macro for logging Eina debug messages.
Definition: eina_file_common.h:179
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
EINA_FALSE
#define EINA_FALSE
boolean value FALSE (numerical value 0)
Definition: eina_types.h:533
Eina_Bool
unsigned char Eina_Bool
Type to mimic a boolean.
Definition: eina_types.h:527
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_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
Eo Evas
An opaque handle to an Evas canvas.
Definition: Evas_Common.h:163
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_event_callback_add
EVAS_API void evas_object_event_callback_add(Evas_Object *eo_obj, Evas_Callback_Type type, Evas_Object_Event_Cb func, const void *data)
Add (register) a callback function to a given Evas object event.
Definition: evas_callbacks.c:478
evas_object_data_get
EVAS_API void * evas_object_data_get(const Evas_Object *obj, const char *key)
Return an attached data pointer on an Evas object by its given string key.
Definition: evas_data.c:12
evas_object_data_set
EVAS_API void evas_object_data_set(Evas_Object *eo_obj, const char *key, const void *data)
Set an attached data pointer to an object with a given string key.
Definition: evas_data.c:5
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
_EPhysics_Quaternion
Quaternion coordinates and rotation (w, x, y, z)
Definition: EPhysics.h:190