test_camera.c

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test_camera.c
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ephysics_test.h"
typedef struct _Camera_Data Camera_Data;
struct _Camera_Data {
Test_Data base;
Ecore_Animator *animator;
int old_x;
};
static void
_update_floor(Evas_Object *floor_obj, Evas_Coord delta)
{
int fx, x, y;
evas_object_geometry_get(floor_obj, &x, &y, NULL, NULL);
fx = x + delta;
if (fx < -FLOOR_WIDTH)
fx += 2 * FLOOR_WIDTH;
evas_object_move(floor_obj, fx, y);
}
static void
_camera_moved_cb(void *data, EPhysics_World *world __UNUSED__, void *event_info)
{
EPhysics_Camera *camera = event_info;
Camera_Data *camera_data = data;
Evas_Object *floor_obj;
int x;
DBG("Camera moved");
ephysics_camera_position_get(camera, &x, NULL);
floor_obj = evas_object_data_get(camera_data->base.layout, "floor");
_update_floor(floor_obj, camera_data->old_x - x);
floor_obj = evas_object_data_get(camera_data->base.layout, "floor2");
_update_floor(floor_obj, camera_data->old_x - x);
camera_data->old_x = x;
}
static Eina_Bool
_camera_move_cb(void *data)
{
Camera_Data *camera_data = data;
EPhysics_Camera *camera;
int x, y, w;
ephysics_world_render_geometry_get(camera_data->base.world,
NULL, NULL, NULL, &w, NULL, NULL);
camera = ephysics_world_camera_get(camera_data->base.world);
ephysics_camera_position_get(camera, &x, &y);
if (x + w > WIDTH * 2)
{
camera_data->animator = NULL;
return EINA_FALSE;
}
x += 2;
ephysics_camera_position_set(camera, x, y);
return EINA_TRUE;
}
static void
_world_populate(Camera_Data *camera_data)
{
Evas_Object *sphere, *shadow;
EPhysics_Body *fall_body;
shadow = elm_layout_add(camera_data->base.win);
elm_layout_file_set(
shadow, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "shadow-ball");
evas_object_move(shadow, WIDTH / 3, FLOOR_Y);
evas_object_resize(shadow, 70, 3);
evas_object_show(shadow);
camera_data->base.evas_objs = eina_list_append(camera_data->base.evas_objs,
shadow);
sphere = elm_image_add(camera_data->base.win);
elm_image_file_set(
sphere, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj",
"big-blue-ball");
evas_object_move(sphere, WIDTH / 3, FLOOR_Y - 70);
evas_object_resize(sphere, 70, 70);
evas_object_show(sphere);
camera_data->base.evas_objs = eina_list_append(camera_data->base.evas_objs,
sphere);
fall_body = ephysics_body_sphere_add(camera_data->base.world);
ephysics_body_evas_object_set(fall_body, sphere, EINA_TRUE);
ephysics_body_restitution_set(fall_body, 0.2);
ephysics_body_friction_set(fall_body, 1);
ephysics_body_event_callback_add(fall_body, EPHYSICS_CALLBACK_BODY_UPDATE,
update_object_cb, shadow);
camera_data->base.bodies = eina_list_append(camera_data->base.bodies,
fall_body);
ephysics_body_central_impulse_apply(fall_body, 300, 0, 0);
shadow = elm_layout_add(camera_data->base.win);
elm_layout_file_set(
shadow, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "shadow-ball");
evas_object_move(shadow, WIDTH * 4 / 3, FLOOR_Y);
evas_object_resize(shadow, 70, 3);
evas_object_show(shadow);
camera_data->base.evas_objs = eina_list_append(camera_data->base.evas_objs,
shadow);
sphere = elm_image_add(camera_data->base.win);
elm_image_file_set(
sphere, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "big-red-ball");
evas_object_move(sphere, WIDTH * 4 / 3, FLOOR_Y - 70);
evas_object_resize(sphere, 70, 70);
evas_object_show(sphere);
camera_data->base.evas_objs = eina_list_append(camera_data->base.evas_objs,
sphere);
fall_body = ephysics_body_sphere_add(camera_data->base.world);
ephysics_body_mass_set(fall_body, 4.6);
ephysics_body_evas_object_set(fall_body, sphere, EINA_TRUE);
ephysics_body_restitution_set(fall_body, 0.12);
ephysics_body_friction_set(fall_body, 2);
ephysics_body_event_callback_add(fall_body, EPHYSICS_CALLBACK_BODY_UPDATE,
update_object_cb, shadow);
camera_data->base.bodies = eina_list_append(camera_data->base.bodies,
fall_body);
camera_data->animator = ecore_animator_add(_camera_move_cb, camera_data);
}
static void
_win_del(void *data, Evas *e __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Camera_Data *camera_data = data;
if (camera_data->animator)
ecore_animator_del(camera_data->animator);
test_clean((Test_Data *)camera_data);
evas_object_del(camera_data->base.layout);
ephysics_world_del(camera_data->base.world);
free(camera_data);
ephysics_shutdown();
}
static void
_restart(void *data, Evas_Object *obj __UNUSED__, const char *emission __UNUSED__, const char *source __UNUSED__)
{
Camera_Data *camera_data = data;
EPhysics_Camera *camera;
Evas_Object *floor_obj;
DBG("Restart pressed");
if (camera_data->animator)
ecore_animator_del(camera_data->animator);
camera = ephysics_world_camera_get(camera_data->base.world);
ephysics_camera_position_set(camera, 50, 40);
camera_data->old_x = 0;
floor_obj = evas_object_data_get(camera_data->base.layout, "floor");
evas_object_move(floor_obj, 0, FLOOR_Y - 20);
floor_obj = evas_object_data_get(camera_data->base.layout, "floor2");
evas_object_move(floor_obj, FLOOR_WIDTH, FLOOR_Y - 20);
test_clean((Test_Data *)camera_data);
_world_populate(camera_data);
}
void
test_camera(void *data __UNUSED__, Evas_Object *obj __UNUSED__, void *event_info __UNUSED__)
{
Camera_Data *camera_data;
EPhysics_Body *boundary;
Evas_Object *floor_obj;
EPhysics_World *world;
if (!ephysics_init())
return;
camera_data = calloc(1, sizeof(Camera_Data));
if (!camera_data)
{
ERR("Failed to create test data");
ephysics_shutdown();
return;
}
test_win_add((Test_Data *)camera_data, "Camera", EINA_FALSE);
evas_object_event_callback_add(camera_data->base.win, EVAS_CALLBACK_DEL,
_win_del, camera_data);
elm_layout_signal_callback_add(camera_data->base.layout, "restart",
"test-theme", _restart, camera_data);
floor_obj = elm_image_add(camera_data->base.win);
elm_image_file_set(
floor_obj, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "floor");
evas_object_move(floor_obj, 0, FLOOR_Y - 20);
evas_object_resize(floor_obj, FLOOR_WIDTH, 224);
evas_object_show(floor_obj);
evas_object_data_set(camera_data->base.layout, "floor", floor_obj);
floor_obj = elm_image_add(camera_data->base.win);
elm_image_file_set(
floor_obj, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj", "floor");
evas_object_move(floor_obj, FLOOR_WIDTH, FLOOR_Y - 20);
evas_object_resize(floor_obj, FLOOR_WIDTH, 224);
evas_object_show(floor_obj);
evas_object_data_set(camera_data->base.layout, "floor2", floor_obj);
world = ephysics_world_new();
ephysics_world_render_geometry_set(world, 50, 40, -50,
WIDTH - 100, FLOOR_Y - 40, DEPTH);
ephysics_world_event_callback_add(world,
EPHYSICS_CALLBACK_WORLD_CAMERA_MOVED,
_camera_moved_cb, camera_data);
camera_data->base.world = world;
boundary = ephysics_body_box_add(camera_data->base.world);
ephysics_body_mass_set(boundary, 0);
ephysics_body_geometry_set(boundary, 0, FLOOR_Y, -15, WIDTH * 2, 10, 30);
ephysics_body_restitution_set(boundary, 0.65);
ephysics_body_friction_set(boundary, 4);
_world_populate(camera_data);
}
Evas_Coord
int Evas_Coord
Type used for coordinates (in pixels, int).
Definition: Evas_Common.h:116
EVAS_CALLBACK_DEL
@ EVAS_CALLBACK_DEL
Object Being Deleted (called before Free)
Definition: Evas_Common.h:439
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_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_geometry_set
EAPI void ephysics_body_geometry_set(EPhysics_Body *body, Evas_Coord x, Evas_Coord y, Evas_Coord z, Evas_Coord w, Evas_Coord h, Evas_Coord d)
Set physics body geometry.
ephysics_body_central_impulse_apply
EAPI void ephysics_body_central_impulse_apply(EPhysics_Body *body, double x, double y, double z)
Apply an impulse on the center of a body.
ephysics_body_friction_set
EAPI void ephysics_body_friction_set(EPhysics_Body *body, double friction)
Set body's friction.
ephysics_body_sphere_add
EAPI EPhysics_Body * ephysics_body_sphere_add(EPhysics_World *world)
Create a new sphere physics body.
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
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_camera_position_get
EAPI void ephysics_camera_position_get(const EPhysics_Camera *camera, Evas_Coord *x, Evas_Coord *y)
Get camera's position.
EPhysics_Camera
struct _EPhysics_Camera EPhysics_Camera
Camera handle, used to change the position of the frame to be rendered.
Definition: EPhysics.h:673
ephysics_camera_position_set
EAPI void ephysics_camera_position_set(EPhysics_Camera *camera, Evas_Coord x, Evas_Coord y)
Set camera's position.
ephysics_world_event_callback_add
EAPI void ephysics_world_event_callback_add(EPhysics_World *world, EPhysics_Callback_World_Type type, EPhysics_World_Event_Cb func, const void *data)
Register a callback to a type of physics world event.
ephysics_world_render_geometry_get
EAPI void ephysics_world_render_geometry_get(const EPhysics_World *world, Evas_Coord *x, Evas_Coord *y, Evas_Coord *z, Evas_Coord *w, Evas_Coord *h, Evas_Coord *d)
Get dimensions of rendered area to be take on account by default updates.
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_del
EAPI void ephysics_world_del(EPhysics_World *world)
Deletes a physics world.
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_world_camera_get
EAPI EPhysics_Camera * ephysics_world_camera_get(const EPhysics_World *world)
Get the camera used by an ephysics world.
EPHYSICS_CALLBACK_WORLD_CAMERA_MOVED
@ EPHYSICS_CALLBACK_WORLD_CAMERA_MOVED
camera position changed
Definition: EPhysics.h:919
ephysics_shutdown
EAPI int ephysics_shutdown(void)
Shutdown EPhysics.
ephysics_init
EAPI int ephysics_init(void)
Initialize EPhysics.
ecore_animator_add
Ecore_Animator * ecore_animator_add(Ecore_Task_Cb func, const void *data)
Adds an animator to call func at every animation tick during main loop execution.
Definition: ecore_anim.c:537
ecore_animator_del
void * ecore_animator_del(Ecore_Animator *animator)
Deletes the specified animator from the animator list.
Definition: ecore_anim.c:846
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_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
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_geometry_get
EVAS_API void evas_object_geometry_get(const Evas_Object *eo_obj, Evas_Coord *x, Evas_Coord *y, Evas_Coord *w, Evas_Coord *h)
Retrieves the position and (rectangular) size of the given Evas object.
Definition: evas_object_main.c:1335
evas_object_del
EVAS_API void evas_object_del(Evas_Object *obj)
Marks the given Evas object for deletion (when Evas will free its memory).
Definition: evas_object_main.c:928
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_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
Ecore_Animator
Opaque handle to manage Ecore Animator objects.