/**
* \brief Notifies this enemy that it should restart his movement.
*
* This function is called when the enemy needs to restart its movement
* because something happened (for example the enemy has just been created,
* or it was just hurt).
* By default, the "walking" animation is set on the enemy's sprites.
*/
void Enemy::restart() {
if (is_immobilized()) {
stop_immobilized();
}
set_animation("walking");
get_lua_context().enemy_on_restarted(*this);
}
/**
* \brief Makes the enemy receive an attack.
*
* He might resist to the attack or get hurt.
*
* \param attack type of attack
* \param source the entity attacking the enemy (often the hero)
* \param this_sprite the sprite of this enemy that received the attack, or NULL
* if the attack comes from a non pixel-precise collision test
*/
void Enemy::try_hurt(EnemyAttack attack, MapEntity& source, Sprite* this_sprite) {
EnemyReaction::Reaction reaction = get_attack_consequence(attack, this_sprite);
if (invulnerable || reaction.type == EnemyReaction::IGNORED) {
// ignore the attack
return;
}
invulnerable = true;
vulnerable_again_date = System::now() + 500;
switch (reaction.type) {
case EnemyReaction::PROTECTED:
// attack failure sound
Sound::play("sword_tapping");
break;
case EnemyReaction::IMMOBILIZED:
// get immobilized
hurt(source);
immobilize();
notify_hurt(source, attack, 0);
break;
case EnemyReaction::CUSTOM:
// custom attack (defined in the script)
if (is_in_normal_state()) {
custom_attack(attack, this_sprite);
}
else {
// no attack was made: notify the source correctly
reaction.type = EnemyReaction::IGNORED;
invulnerable = false;
}
break;
case EnemyReaction::HURT:
if (is_immobilized() && get_sprite().get_current_animation() == "shaking") {
stop_immobilized();
}
// compute the number of health points lost by the enemy
if (attack == ATTACK_SWORD) {
// for a sword attack, the damage depends on the sword and the variant of sword attack used
int damage_multiplicator = ((Hero&) source).get_sword_damage_factor();
reaction.life_lost *= damage_multiplicator;
}
else if (attack == ATTACK_THROWN_ITEM) {
reaction.life_lost *= ((CarriedItem&) source).get_damage_on_enemies();
}
life -= reaction.life_lost;
hurt(source);
notify_hurt(source, attack, reaction.life_lost);
break;
case EnemyReaction::IGNORED:
case EnemyReaction::REACTION_NUMBER:
Debug::die(StringConcat() << "Invalid enemy reaction" << reaction.type);
break;
}
// notify the source
source.notify_attacked_enemy(attack, *this, reaction, get_life() <= 0);
}
/**
* \brief Makes the enemy receive an attack.
*
* He might resist to the attack or get hurt.
*
* \param attack type of attack
* \param source the entity attacking the enemy (often the hero)
* \param this_sprite the sprite of this enemy that received the attack, or NULL
* if the attack comes from a non pixel-precise collision test
*/
void Enemy::try_hurt(EnemyAttack attack, MapEntity& source, Sprite* this_sprite) {
EnemyReaction::Reaction reaction = get_attack_consequence(attack, this_sprite);
if (invulnerable || reaction.type == EnemyReaction::IGNORED) {
// ignore the attack
return;
}
invulnerable = true;
vulnerable_again_date = System::now() + 500;
switch (reaction.type) {
case EnemyReaction::PROTECTED:
// attack failure sound
Sound::play("sword_tapping");
break;
case EnemyReaction::IMMOBILIZED:
// get immobilized
being_hurt = true;
hurt(source, this_sprite);
immobilize();
break;
case EnemyReaction::CUSTOM:
// custom attack (defined in the script)
if (is_in_normal_state()) {
custom_attack(attack, this_sprite);
}
else {
// no attack was made: notify the source correctly
reaction.type = EnemyReaction::IGNORED;
invulnerable = false;
}
break;
case EnemyReaction::HURT:
if (is_immobilized() && get_sprite().get_current_animation() == "shaking") {
stop_immobilized();
}
// Compute the number of health points lost by the enemy.
being_hurt = true;
if (attack == ATTACK_SWORD) {
Hero& hero = static_cast<Hero&>(source);
// Sword attacks only use pixel-precise collisions.
Debug::check_assertion(this_sprite != NULL,
"Missing enemy sprite for sword attack"
);
// For a sword attack, the damage may be something customized.
bool customized = get_lua_context().enemy_on_hurt_by_sword(
*this, hero, *this_sprite);
if (customized) {
reaction.life_lost = 0; // Already done by the script.
}
else {
// If this is not customized, the default it to multiply the reaction
// by a factor that depends on the sword.
reaction.life_lost *= hero.get_sword_damage_factor();
}
}
else if (attack == ATTACK_THROWN_ITEM) {
reaction.life_lost *= static_cast<CarriedItem&>(source).get_damage_on_enemies();
}
life -= reaction.life_lost;
hurt(source, this_sprite);
notify_hurt(source, attack);
break;
case EnemyReaction::IGNORED:
case EnemyReaction::REACTION_NUMBER:
{
std::ostringstream oss;
oss << "Invalid enemy reaction: " << reaction.type;
Debug::die(oss.str());
break;
}
}
// notify the source
source.notify_attacked_enemy(
attack,
*this,
this_sprite,
reaction,
get_life() <= 0
);
}