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test_camera.c

# ephysics_test.h

#ifndef _EPHYSICS_PRIVATE_H
#define _EPHYSICS_PRIVATE_H
#include <Edje.h>
#include <Elementary.h>
#include <Eina.h>
#include <Evas.h>
#include "EPhysics.h"
#ifdef EPHYSICS_LOG_COLOR
#undef EPHYSICS_LOG_COLOR
#endif
#define EPHYSICS_LOG_COLOR EINA_COLOR_BLUE
#ifdef ERR
# undef ERR
#endif
#define ERR(...) EINA_LOG_DOM_ERR(_ephysics_test_log_dom, __VA_ARGS__)
#ifdef DBG
# undef DBG
#endif
#define DBG(...) EINA_LOG_DOM_DBG(_ephysics_test_log_dom, __VA_ARGS__)
#ifdef INF
# undef INF
#endif
#define INF(...) EINA_LOG_DOM_INFO(_ephysics_test_log_dom, __VA_ARGS__)
#ifdef WRN
# undef WRN
#endif
#define WRN(...) EINA_LOG_DOM_WARN(_ephysics_test_log_dom, __VA_ARGS__)
#ifdef CRI
# undef CRI
#endif
#define CRI(...) EINA_LOG_DOM_CRIT(_ephysics_test_log_dom, __VA_ARGS__)
#define EPHYSICS_TEST_THEME "ephysics_test"
#define WIDTH (512)
#define HEIGHT (384)
#define DEPTH (100)
#define SHADOW_ALPHA_ID (1)
#define FLOOR_Y (344)
#define FLOOR_WIDTH (750)
#define SH_THRESHOLD (200)
#ifdef __cplusplus
extern "C" {
#endif
extern int _ephysics_test_log_dom;
typedef struct _Test_Data Test_Data;
struct _Test_Data {
EPhysics_World *world;
Evas_Object *layout;
Evas_Object *win;
Eina_List *constraints;
Eina_List *evas_objs;
Eina_List *bodies;
void *data;
};
Test_Data *test_data_new(void);
void test_data_del(Test_Data *test_data);
void test_clean(Test_Data *test_data);
void test_win_add(Test_Data *test_data, const char *title, Eina_Bool autodel);
void update_object_cb(void *data, EPhysics_Body *body, void *event_info);
#ifdef __cplusplus
}
#endif

# test_camera.c

test_clean(Test_Data *test_data)
{
EPhysics_Constraint *constraint;
Evas_Object *evas_obj;
EPhysics_Body *body;
EINA_LIST_FREE(test_data->constraints, constraint)
ephysics_constraint_del(constraint);
EINA_LIST_FREE(test_data->bodies, body)
ephysics_body_del(body);
EINA_LIST_FREE(test_data->evas_objs, evas_obj)
evas_object_del(evas_obj);
}

test_win_add(Test_Data *test_data, const char *title, Eina_Bool autodel)
{
Evas_Object *win, *ly;
win = elm_win_add(NULL, title, ELM_WIN_BASIC);
elm_win_title_set(win, title);
elm_win_autodel_set(win, EINA_TRUE);
evas_object_show(win);
test_data->win = win;
if (autodel)
evas_object_event_callback_add(win, EVAS_CALLBACK_DEL,
_subwin_del_cb, test_data);
ly = elm_layout_add(win);
elm_win_resize_object_add(win, ly);
evas_object_size_hint_min_set(ly, WIDTH, HEIGHT);
evas_object_size_hint_max_set(ly, WIDTH, HEIGHT);
elm_layout_file_set(ly, PACKAGE_DATA_DIR "/" EPHYSICS_TEST_THEME ".edj",
"frame");
evas_object_show(ly);
test_data->layout = ly;
}
#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);
}