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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);
}