/**
* \brief Throws the item.
* \param direction direction where the hero throws the item (0 to 3)
*/
void CarriedItem::throw_item(int direction) {
this->throwing_direction = direction;
this->is_lifting = false;
this->is_throwing = true;
// play the sound
Sound::play("throw");
// stop the sprite animation
Sprite& sprite = get_sprite();
sprite.set_current_animation("stopped");
// set the movement of the item sprite
set_y(hero.get_y());
std::shared_ptr<StraightMovement> movement =
std::make_shared<StraightMovement>(false, false);
movement->set_speed(200);
movement->set_angle(Geometry::degrees_to_radians(direction * 90));
clear_movement();
set_movement(movement);
this->y_increment = -2;
this->next_down_date = System::now() + 40;
this->item_height = 18;
}
/**
* \brief This function is called by the engine when an entity overlaps the pickable item.
*
* If the entity is the player, we give him the item, and the map is notified
* to destroy it.
* \param entity_overlapping the entity overlapping the detector
* \param collision_mode the collision mode that detected the collision
*/
void Pickable::notify_collision(MapEntity& entity_overlapping, CollisionMode collision_mode) {
if (entity_overlapping.is_hero()) {
try_give_item_to_player();
}
else if (entity_followed == NULL) {
if (entity_overlapping.get_type() == ENTITY_BOOMERANG) {
Boomerang& boomerang = static_cast<Boomerang&>(entity_overlapping);
if (!boomerang.is_going_back()) {
boomerang.go_back();
}
entity_followed = &boomerang;
}
else if (entity_overlapping.get_type() == ENTITY_HOOKSHOT) {
Hookshot& hookshot = static_cast<Hookshot&>(entity_overlapping);
if (!hookshot.is_going_back()) {
hookshot.go_back();
}
entity_followed = &hookshot;
}
if (entity_followed != NULL) {
clear_movement();
set_movement(new FollowMovement(entity_followed, 0, 0, true));
falling_height = FALLING_NONE;
set_blinking(false);
}
}
}
/**
* @brief Updates this entity.
*/
void Hookshot::update() {
MapEntity::update();
if (suspended) {
return;
}
uint32_t now = System::now();
if (now >= next_sound_date) {
Sound::play("hookshot");
next_sound_date = now + 150;
}
if (entity_reached == NULL) {
if (!going_back) {
if (has_to_go_back) {
going_back = true;
Movement *movement = new TargetMovement(&get_hero(), 192, true);
clear_movement();
set_movement(movement);
}
else if (get_distance(get_hero()) >= 120) {
go_back();
}
}
else if (get_distance(get_hero()) == 0 ||
(get_movement() != NULL && get_movement()->is_finished())) {
remove_from_map();
get_hero().start_state_from_ground();
}
}
}
/**
* \brief This function is called by the engine when an entity overlaps the pickable item.
*
* If the entity is the player, we give him the item, and the map is notified
* to destroy it.
* \param entity_overlapping the entity overlapping the detector
* \param collision_mode the collision mode that detected the collision
*/
void Pickable::notify_collision(MapEntity& entity_overlapping, CollisionMode /* collision_mode */) {
if (entity_overlapping.is_hero()) {
try_give_item_to_player();
}
else if (entity_followed == nullptr) {
MapEntityPtr shared_entity_overlapping =
std::static_pointer_cast<MapEntity>(entity_overlapping.shared_from_this());
if (entity_overlapping.get_type() == ENTITY_BOOMERANG) {
Boomerang& boomerang = static_cast<Boomerang&>(entity_overlapping);
if (!boomerang.is_going_back()) {
boomerang.go_back();
}
entity_followed = shared_entity_overlapping;
}
else if (entity_overlapping.get_type() == ENTITY_HOOKSHOT) {
Hookshot& hookshot = static_cast<Hookshot&>(entity_overlapping);
if (!hookshot.is_going_back()) {
hookshot.go_back();
}
entity_followed = shared_entity_overlapping;
}
if (entity_followed != nullptr) {
clear_movement();
set_movement(std::make_shared<FollowMovement>(
entity_followed, 0, 0, true
));
falling_height = FALLING_NONE;
set_blinking(false);
}
}
}
/**
* \brief Hurts the enemy.
*
* Updates its state, its sprite and plays the sound.
*
* \param source the entity attacking the enemy (often the hero)
*/
void Enemy::hurt(MapEntity& source) {
uint32_t now = System::now();
// update the enemy state
being_hurt = true;
set_movement_events_enabled(false);
can_attack = false;
can_attack_again_date = now + 300;
// graphics and sounds
set_animation("hurt");
play_hurt_sound();
// stop any movement
clear_movement();
// push the enemy back
if (pushed_back_when_hurt) {
double angle = source.get_angle(*this);
StraightMovement* movement = new StraightMovement(false, true);
movement->set_max_distance(24);
movement->set_speed(120);
movement->set_angle(angle);
set_movement(movement);
}
stop_hurt_date = now + 300;
}
/**
* \brief This function is called repeatedly.
*/
void Bomb::update() {
Detector::update();
if (is_suspended()) {
return;
}
// check the explosion date
uint32_t now = System::now();
if (now >= explosion_date) {
explode();
}
else if (now >= explosion_date - 1500
&& get_sprite().get_current_animation() != "stopped_explosion_soon") {
get_sprite().set_current_animation("stopped_explosion_soon");
}
// destroy the movement once finished
if (get_movement() != nullptr && get_movement()->is_finished()) {
clear_movement();
}
// check collision with explosions, streams, etc.
check_collision_with_detectors();
}
/**
* \brief Kills the enemy.
*
* This function is called when the enemy has no more health points.
*/
void Enemy::kill() {
// if the enemy is immobilized, give some money
if (rank == RANK_NORMAL && is_immobilized() && !treasure.is_saved()) {
// TODO choose random money (can we do this from scripts?)
}
// stop any movement and disable attacks
set_collision_modes(COLLISION_NONE);
clear_movement();
invulnerable = true;
can_attack = false;
can_attack_again_date = 0;
dying_animation_started = true;
if (hurt_style == HURT_BOSS) {
// A boss: create some explosions.
exploding = true;
nb_explosions = 0;
next_explosion_date = System::now() + 2000;
}
else {
// Replace the enemy sprites.
clear_sprites();
switch (get_ground_below()) {
case GROUND_HOLE:
// TODO animation of falling into a hole.
Sound::play("jump");
break;
case GROUND_DEEP_WATER:
// TODO water animation.
Sound::play("splash");
break;
case GROUND_LAVA:
// TODO lava animation.
Sound::play("splash");
break;
default:
create_sprite("enemies/enemy_killed");
Sound::play("enemy_killed");
break;
}
}
// save the enemy state if required
if (is_saved()) {
get_savegame().set_boolean(savegame_variable, true);
}
}
/**
* @brief Attachs the hookshot to an entity and makes the hero move towards this entity.
* @param entity_reached the entity to attach the hookshot to
*/
void Hookshot::attach_to(MapEntity& entity_reached) {
Debug::check_assertion(this->entity_reached == NULL,
"The hookshot is already attached to an entity");
this->entity_reached = &entity_reached;
clear_movement();
int direction = get_sprite().get_current_direction();
std::string path = " ";
path[0] = '0' + (direction * 2);
get_hero().set_movement(new PathMovement(path, 192, true, false, false));
}
/**
* @brief Resets the block at its initial position.
*/
void Block::reset() {
if (get_movement() != NULL) {
// the block was being pushed or pulled by the hero
clear_movement();
when_can_move = System::now() + moving_delay;
}
set_xy(initial_position);
last_position.set_xy(initial_position);
this->maximum_moves = initial_maximum_moves;
}
/**
* \brief Resets the block at its initial position.
*/
void Block::reset() {
if (get_movement() != nullptr) {
// the block was being pushed or pulled by the hero
clear_movement();
when_can_move = System::now() + moving_delay;
}
last_position = initial_position;
this->maximum_moves = initial_maximum_moves;
set_xy(initial_position);
notify_position_changed();
}
/**
* \brief This function is called when this entity stops being moved by the
* hero.
*/
void Block::stop_movement_by_hero() {
clear_movement();
when_can_move = System::now() + moving_delay;
// see if the block has moved
if (get_xy() != last_position) {
// the block has moved
last_position = get_xy(); // save the new position for next time
if (maximum_moves == 1) { // if the block could be moved only once,
maximum_moves = 0; // then it cannot move anymore
}
}
}
/**
* @brief This function is called when this entity stops being moved by the
* hero.
*/
void Block::stop_movement_by_hero() {
clear_movement();
when_can_move = System::now() + moving_delay;
// see if the block has moved
if (get_x() != last_position.get_x() || get_y() != last_position.get_y()) {
// the block has moved
last_position.set_xy(get_x(), get_y()); // save the new position for next time
if (maximum_moves == 1) { // if the block could be moved only once,
maximum_moves = 0; // then it cannot move anymore
}
}
// notify the script
get_map_script().event_block_moved(get_name());
}
/**
* \brief This function is called when a conveyor belt detects a collision with this entity.
* \param conveyor_belt a conveyor belt
* \param dx direction of the x move in pixels (0, 1 or -1)
* \param dy direction of the y move in pixels (0, 1 or -1)
*/
void Bomb::notify_collision_with_conveyor_belt(ConveyorBelt& conveyor_belt, int dx, int dy) {
if (get_movement() == NULL) {
// check that a significant part of the bomb is on the conveyor belt
Rectangle center = get_center_point();
center.add_xy(-1, -1);
center.set_size(2, 2);
if (conveyor_belt.overlaps(center)) {
set_xy(conveyor_belt.get_xy());
std::string path = " ";
path[0] = path[1] = '0' + conveyor_belt.get_direction();
clear_movement();
set_movement(new PathMovement(path, 64, false, false, false));
}
}
}
/**
* \copydoc MapEntity::notify_collision_with_stream
*/
void Bomb::notify_collision_with_stream(Stream& stream, int /* dx */, int /* dy */) {
if (get_movement() == nullptr) {
// TODO use a StreamAction, since it now works with any entity and not only the hero.
// Check that a significant part of the bomb is on the stream.
Rectangle center(get_center_point(), Size(2, 2));
center.add_xy(-1, -1);
if (stream.overlaps(center)) {
set_xy(stream.get_xy());
std::string path = " ";
path[0] = path[1] = '0' + stream.get_direction();
clear_movement();
set_movement(std::make_shared<PathMovement>(
path, 64, false, false, false
));
}
}
}
/**
* \brief Updates the boomerang.
*/
void Boomerang::update() {
MapEntity::update();
if (is_suspended()) {
return;
}
uint32_t now = System::now();
if (now >= next_sound_date) {
Sound::play("boomerang");
next_sound_date = now + 150;
}
if (!going_back && has_to_go_back) {
going_back = true;
clear_movement();
set_movement(new TargetMovement(&hero, 0, 0, speed, true));
get_entities().set_entity_layer(*this, hero.get_layer()); // because the hero's layer may have changed
}
}
/**
* \brief Updates this entity.
*/
void Hookshot::update() {
MapEntity::update();
if (is_suspended()) {
return;
}
uint32_t now = System::now();
if (now >= next_sound_date) {
Sound::play("hookshot");
next_sound_date = now + 150;
}
if (entity_reached == nullptr) {
if (!going_back) {
if (has_to_go_back) {
going_back = true;
std::shared_ptr<Movement> movement = std::make_shared<TargetMovement>(
std::static_pointer_cast<Hero>(get_hero().shared_from_this()),
0,
0,
192,
true
);
clear_movement();
set_movement(movement);
}
else if (get_distance(get_hero()) >= 120) {
go_back();
}
}
else if (get_distance(get_hero()) == 0 ||
(get_movement() != nullptr && get_movement()->is_finished())) {
remove_from_map();
get_hero().start_state_from_ground();
}
}
}
/**
* \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);
}
/**
* \brief This function is called repeatedly.
*/
void CarriedItem::update() {
// update the sprite and the position
Entity::update();
if (is_suspended()) {
return;
}
// when the hero finishes lifting the item, start carrying it
if (is_lifting && get_movement()->is_finished()) {
is_lifting = false;
// make the item follow the hero
clear_movement();
set_movement(std::make_shared<RelativeMovement>(
std::static_pointer_cast<Hero>(hero.shared_from_this()),
0,
-18,
true
));
}
// when the item has finished flying, destroy it
else if (can_explode() && !is_breaking) {
uint32_t now = System::now();
if (now >= explosion_date) {
break_item();
}
else if (will_explode_soon()) {
std::string animation = get_sprite().get_current_animation();
if (animation == "stopped") {
get_sprite().set_current_animation("stopped_explosion_soon");
}
else if (animation == "walking") {
get_sprite().set_current_animation("walking_explosion_soon");
}
}
}
if (is_broken()) {
remove_from_map();
}
else if (is_throwing) {
shadow_sprite->update();
if (break_one_layer_above) {
break_item();
int layer = get_layer();
if (layer != get_map().get_highest_layer()) {
get_entities().set_entity_layer(*this, layer + 1);
}
break_one_layer_above = false;
}
else if (get_movement()->is_stopped() || y_increment >= 7) {
// Interrupt the movement.
break_item_on_ground();
}
else {
uint32_t now = System::now();
while (now >= next_down_date) {
next_down_date += 40;
item_height -= y_increment;
y_increment++;
}
}
}
}
/**
* \brief Updates this entity.
*/
void Arrow::update() {
MapEntity::update();
if (is_suspended()) {
return;
}
uint32_t now = System::now();
// stop the movement if necessary (i.e. stop() was called)
if (stop_now) {
clear_movement();
stop_now = false;
if (entity_reached != NULL) {
// the arrow just hit an entity (typically an enemy) and this entity may have a movement
Rectangle dxy(get_x() - entity_reached->get_x(), get_y() - entity_reached->get_y());
set_movement(new FollowMovement(entity_reached, dxy.get_x(), dxy.get_y(), true));
}
}
if (entity_reached != NULL) {
// see if the entity reached is still valid
if (is_stopped()) {
// the arrow is stopped because the entity that was reached just disappeared
disappear_date = now;
}
else if (entity_reached->get_type() == ENTITY_DESTRUCTIBLE && !entity_reached->is_obstacle_for(*this)) {
disappear_date = now;
}
else if (entity_reached->get_type() == ENTITY_ENEMY && ((Enemy*) entity_reached)->is_dying()) {
// the enemy is dying
disappear_date = now;
}
}
// see if the arrow just hit a wall or an entity
bool reached_obstacle = false;
if (get_sprite().get_current_animation() != "reached_obstacle") {
if (entity_reached != NULL) {
// the arrow was just attached to an entity
reached_obstacle = true;
}
else if (is_stopped()) {
if (has_reached_map_border()) {
// the map border was reached: destroy the arrow
disappear_date = now;
}
else {
// the arrow has just hit another obstacle
reached_obstacle = true;
}
}
}
if (reached_obstacle) {
// an obstacle or an entity was just reached
disappear_date = now + 1500;
get_sprite().set_current_animation("reached_obstacle");
Sound::play("arrow_hit");
if (entity_reached == NULL) {
clear_movement();
}
check_collision_with_detectors(false);
}
// destroy the arrow when disappear_date is reached
if (now >= disappear_date) {
remove_from_map();
}
}
MapEntity::~MapEntity() {
clear_movement();
clear_old_movements();
clear_sprites();
clear_old_sprites();
}
/**
* @brief This function is called repeatedly.
*/
void CarriedItem::update() {
// update the sprite and the position
MapEntity::update();
if (suspended) {
return;
}
// when the hero finishes lifting the item, start carrying it
if (is_lifting && get_movement()->is_finished()) {
is_lifting = false;
// make the item follow the hero
clear_movement();
set_movement(new FollowMovement(&hero, 0, -18, true));
}
// when the item has finished flying, destroy it
else if (can_explode() && !is_breaking) {
uint32_t now = System::now();
if (now >= explosion_date) {
break_item();
}
else if (will_explode_soon()) {
std::string animation = get_sprite().get_current_animation();
if (animation == "stopped") {
get_sprite().set_current_animation("stopped_explosion_soon");
}
else if (animation == "walking") {
get_sprite().set_current_animation("walking_explosion_soon");
}
}
}
if (is_throwing) {
shadow_sprite->update();
if (is_broken()) {
remove_from_map();
}
else if (break_on_intermediate_layer) {
break_item();
get_entities().set_entity_layer(*this, LAYER_INTERMEDIATE);
break_on_intermediate_layer = false;
}
else if (get_movement()->is_stopped() || y_increment >= 7) {
break_item();
}
else {
uint32_t now = System::now();
while (now >= next_down_date) {
next_down_date += 40;
item_height -= y_increment;
y_increment++;
}
}
}
}
