/**
* \brief Updates the animation of the hero's sprites if necessary.
*/
void HeroSprites::update() {
// Keep the current sprites here in case they change from a script during the operation.
SpritePtr tunic_sprite = this->tunic_sprite;
SpritePtr sword_sprite = this->sword_sprite;
// update the frames
tunic_sprite->update();
if (is_sword_visible()) {
sword_sprite->update();
sword_sprite->set_current_frame(tunic_sprite->get_current_frame());
hero.check_collision_with_detectors(*sword_sprite);
}
hero.check_collision_with_detectors(*tunic_sprite);
if (is_sword_stars_visible()) {
// the stars are not synchronized with the other sprites
sword_stars_sprite->update();
}
if (is_shield_visible()) {
shield_sprite->update();
if (walking) {
shield_sprite->set_current_frame(tunic_sprite->get_current_frame());
}
}
if (is_trail_visible()) {
trail_sprite->update();
}
if (is_ground_visible()) {
ground_sprite->update();
}
if (lifted_item != nullptr && walking) {
lifted_item->get_sprite().set_current_frame(tunic_sprite->get_current_frame() % 3);
}
// blinking
if (is_blinking()
&& end_blink_date != 0
&& System::now() >= end_blink_date) {
stop_blinking();
}
// Lua callback.
if (tunic_sprite->is_animation_finished() &&
!animation_callback_ref.is_empty()) {
animation_callback_ref.clear_and_call("hero animation callback");
}
}
/**
* \brief Checks whether the frame has to be changed.
*
* If the frame changes, next_frame_date is updated.
*/
void Sprite::update() {
Drawable::update();
if (suspended || paused) {
return;
}
frame_changed = false;
uint32_t now = System::now();
// update the current frame
if (synchronize_to == NULL
|| current_animation_name != synchronize_to->get_current_animation()
|| synchronize_to->get_current_direction() > get_nb_directions()
|| synchronize_to->get_current_frame() > get_nb_frames()) {
// update the frames normally (with the time)
int next_frame;
while (!finished && !suspended && !paused && get_frame_delay() > 0
&& now >= next_frame_date) {
// we get the next frame
next_frame = get_next_frame();
// test whether the animation is finished
if (next_frame == -1) {
finished = true;
if (lua_context != NULL) {
lua_context->sprite_on_animation_finished(*this, current_animation_name);
}
}
else {
current_frame = next_frame;
next_frame_date += get_frame_delay();
}
set_frame_changed(true);
if (lua_context != NULL) {
lua_context->sprite_on_frame_changed(*this, current_animation_name, current_frame);
}
}
}
else {
// take the same frame as the other sprite
if (synchronize_to->is_animation_finished()) {
finished = true;
if (lua_context != NULL) {
lua_context->sprite_on_animation_finished(*this, current_animation_name);
}
}
else {
int other_frame = synchronize_to->get_current_frame();
if (other_frame != current_frame) {
current_frame = other_frame;
next_frame_date = now + get_frame_delay();
set_frame_changed(true);
if (lua_context != NULL) {
lua_context->sprite_on_frame_changed(*this, current_animation_name, current_frame);
}
}
}
}
// update the special effects
if (is_blinking()) {
// the sprite is blinking
while (now >= blink_next_change_date) {
blink_is_sprite_visible = !blink_is_sprite_visible;
blink_next_change_date += blink_delay;
}
}
}