/**
* \brief Returns whether this enemy is in a normal state.
*
* The enemy is considered to be in its normal state if
* it is not disabled, dying, being hurt or immobilized.
* When this method returns false, the subclasses of Enemy
* should not change the enemy properties.
*
* \return true if this enemy is in a normal state
*/
bool Enemy::is_in_normal_state() const {
return is_enabled()
&& !is_being_hurt()
&& get_life() > 0
&& !is_immobilized()
&& !is_being_removed();
}
/**
* @brief This function is called when the movement of the entity is finished.
*/
void CustomEnemy::notify_movement_finished() {
Enemy::notify_movement_finished();
if (!is_being_hurt()) {
script->event_movement_finished(*get_movement());
}
}
/**
* @brief This function is called when the layer of this entity has just changed.
*
* Redefine it if you need to be notified.
*/
void CustomEnemy::notify_layer_changed() {
Enemy::notify_layer_changed();
if (!is_being_hurt()) {
script->event_layer_changed(get_layer());
}
}
/**
* @brief This function is called when the entity has just moved.
*/
void CustomEnemy::notify_position_changed() {
Enemy::notify_position_changed();
if (!is_being_hurt()) {
script->event_position_changed(get_xy());
}
}
/**
* @brief Notifies this entity that it has just failed to change its position
* because of obstacles.
*/
void CustomEnemy::notify_obstacle_reached() {
Enemy::notify_obstacle_reached();
if (!is_being_hurt()) {
script->event_obstacle_reached();
}
}
/**
* \brief Returns whether lava is currently considered as obstacle by this entity.
* \return true if lava is currently obstacle for this entity
*/
bool Enemy::is_lava_obstacle() const {
if (obstacle_behavior == OBSTACLE_BEHAVIOR_FLYING) {
return false;
}
if (is_being_hurt()) {
return false;
}
const Layer layer = get_layer();
const int x = get_top_left_x();
const int y = get_top_left_y();
if (get_map().get_ground(layer, x, y) == GROUND_LAVA
|| get_map().get_ground(layer, x + get_width() - 1, y) == GROUND_LAVA
|| get_map().get_ground(layer, x, y + get_height() - 1) == GROUND_LAVA
|| get_map().get_ground(layer, x + get_width() - 1, y + get_height() - 1) == GROUND_LAVA) {
return false;
}
return true;
}
/**
* \brief Updates the enemy.
*/
void Enemy::update() {
MapEntity::update();
if (is_suspended() || !is_enabled()) {
return;
}
uint32_t now = System::now();
if (being_hurt) {
// see if we should stop the animation "hurt"
if (now >= stop_hurt_date) {
being_hurt = false;
set_movement_events_enabled(true);
if (life <= 0) {
kill();
}
else if (is_immobilized()) {
clear_movement();
set_animation("immobilized");
notify_immobilized();
}
else {
clear_movement();
restart();
}
}
}
if (life > 0 && invulnerable && now >= vulnerable_again_date && !being_hurt) {
invulnerable = false;
}
if (life > 0 && !can_attack && !is_immobilized()
&& can_attack_again_date != 0 && now >= can_attack_again_date) {
can_attack = true;
}
if (is_immobilized() && !is_killed() && now >= end_shaking_date &&
get_sprite().get_current_animation() == "shaking") {
restart();
}
if (is_immobilized() && !is_killed() && !is_being_hurt() && now >= start_shaking_date &&
get_sprite().get_current_animation() != "shaking") {
end_shaking_date = now + 2000;
set_animation("shaking");
}
if (exploding) {
uint32_t now = System::now();
if (now >= next_explosion_date) {
// create an explosion
Rectangle xy;
xy.set_x(get_top_left_x() + Random::get_number(get_width()));
xy.set_y(get_top_left_y() + Random::get_number(get_height()));
get_entities().add_entity(new Explosion("", LAYER_HIGH, xy, false));
Sound::play("explosion");
next_explosion_date = now + 200;
nb_explosions++;
if (nb_explosions >= 15) {
exploding = false;
}
}
}
if (is_killed() && is_dying_animation_finished()) {
// Create the pickable treasure if any.
get_entities().add_entity(Pickable::create(get_game(),
"", get_layer(), get_x(), get_y(),
treasure, FALLING_HIGH, false));
// Remove the enemy.
remove_from_map();
// Notify Lua that this enemy is dead.
// We need to do this after remove_from_map() so that this enemy is
// considered dead in functions like map:has_entities(prefix).
notify_dead();
}
get_lua_context().enemy_on_update(*this);
}