2022-05-22 12:55:55 -07:00

216 lines
7.9 KiB
Java

package emu.grasscutter.game.managers;
import emu.grasscutter.data.GameData;
import emu.grasscutter.data.def.AvatarSkillDepotData;
import emu.grasscutter.data.def.ItemData;
import emu.grasscutter.game.avatar.Avatar;
import emu.grasscutter.game.entity.EntityAvatar;
import emu.grasscutter.game.entity.EntityClientGadget;
import emu.grasscutter.game.entity.EntityItem;
import emu.grasscutter.game.entity.GameEntity;
import emu.grasscutter.game.inventory.GameItem;
import emu.grasscutter.game.player.Player;
import emu.grasscutter.game.props.ElementType;
import emu.grasscutter.net.proto.AbilityActionGenerateElemBallOuterClass.AbilityActionGenerateElemBall;
import emu.grasscutter.net.proto.AbilityInvokeEntryOuterClass.AbilityInvokeEntry;
import emu.grasscutter.net.proto.PropChangeReasonOuterClass.PropChangeReason;
import emu.grasscutter.server.game.GameSession;
import emu.grasscutter.utils.Position;
import static emu.grasscutter.Configuration.GAME_OPTIONS;
import java.util.Optional;
import com.google.protobuf.InvalidProtocolBufferException;
public class EnergyManager {
private final Player player;
public EnergyManager(Player player) {
this.player = player;
}
public Player getPlayer() {
return this.player;
}
/**********
Particle creation for elemental skills.
**********/
private int getCastingAvatarIdForElemBall(int invokeEntityId) {
// To determine the avatar that has cast the skill that caused the energy particle to be generated,
// we have to look at the entity that has invoked the ability. This can either be that avatar directly,
// or it can be an `EntityClientGadget`, owned (some way up the owner hierarchy) by the avatar
// that cast the skill.
int res = 0;
// Try to get the invoking entity from the scene.
GameEntity entity = player.getScene().getEntityById(invokeEntityId);
// If this entity is null, or not an `EntityClientGadget`, we assume that we are directly
// looking at the casting avatar (the null case will happen if the avatar was switched out
// between casting the skill and the particle being generated).
if (!(entity instanceof EntityClientGadget)) {
res = invokeEntityId;
}
// If the entity is a `EntityClientGadget`, we need to "walk up" the owner hierarchy,
// until the owner is no longer a gadget. This should then be the ID of the casting avatar.
else {
while (entity instanceof EntityClientGadget gadget) {
res = gadget.getOwnerEntityId();
entity = player.getScene().getEntityById(gadget.getOwnerEntityId());
}
}
return res;
}
public void handleGenerateElemBall(AbilityInvokeEntry invoke) throws InvalidProtocolBufferException {
// ToDo:
// This is also called when a weapon like Favonius Warbow etc. creates energy through its passive.
// We are not handling this correctly at the moment.
// Get action info.
AbilityActionGenerateElemBall action = AbilityActionGenerateElemBall.parseFrom(invoke.getAbilityData());
if (action == null) {
return;
}
// Determine the element of the energy particle that we have to generate.
// In case we can't, we default to an elementless particle.
// The element is the element of the avatar that has cast the ability.
// We can get that from the avatar's skill depot.
int itemId = 2024;
// Try to fetch the avatar from the player's party and determine their element.
// ToDo: Does this work in co-op?
int avatarId = getCastingAvatarIdForElemBall(invoke.getEntityId());
Optional<EntityAvatar> avatarEntity = player.getTeamManager().getActiveTeam()
.stream()
.filter(character -> character.getId() == avatarId)
.findFirst();
if (avatarEntity.isPresent()) {
Avatar avatar = avatarEntity.get().getAvatar();
if (avatar != null) {
AvatarSkillDepotData skillDepotData = avatar.getSkillDepot();
if (skillDepotData != null) {
ElementType element = skillDepotData.getElementType();
// If we found the element, we use it to deterine the ID of the
// energy particle that we have to generate.
if (element != null) {
itemId = switch (element) {
case Fire -> 2017;
case Water -> 2018;
case Grass -> 2019;
case Electric -> 2020;
case Wind -> 2021;
case Ice -> 2022;
case Rock -> 2023;
default -> 2024;
};
}
}
}
}
// Get the item data for an energy particle of the correct element.
ItemData itemData = GameData.getItemDataMap().get(itemId);
if (itemData == null) {
return; // Should never happen
}
// Generate entity.
EntityItem energyBall = new EntityItem(getPlayer().getScene(), getPlayer(), itemData, new Position(action.getPos()), 1);
energyBall.getRotation().set(action.getRot());
this.getPlayer().getScene().addEntity(energyBall);
}
/**********
Pickup of elemental particles and orbs.
**********/
public void handlePickupElemBall(GameItem elemBall) {
// Check if the item is indeed an energy particle/orb.
if (elemBall.getItemId() < 2001 ||elemBall.getItemId() > 2024) {
return;
}
// Determine the base amount of energy given by the particle/orb.
// Particles have a base amount of 1.0, and orbs a base amount of 3.0.
float baseEnergy = (elemBall.getItemId() <= 2008) ? 3.0f : 1.0f;
// Add energy to every team member.
for (int i = 0; i < this.player.getTeamManager().getActiveTeam().size(); i++) {
EntityAvatar entity = this.player.getTeamManager().getActiveTeam().get(i);
// On-field vs off-field multiplier.
// The on-field character gets no penalty.
// Off-field characters get a penalty depending on the team size, as follows:
// - 4 character team: 0.6
// - 3 character team: 0.7
// - 2 character team: 0.8
float offFieldPenalty = (this.player.getTeamManager().getCurrentCharacterIndex() == i) ? 1.0f : 1.0f - this.player.getTeamManager().getActiveTeam().size() * 0.1f;
// Same element/neutral bonus.
// Same-element characters get a bonus of *3, while different-element characters get no bonus at all.
// For neutral particles/orbs, the multiplier is always *2.
if (entity.getAvatar().getSkillDepot() == null) {
continue;
}
ElementType avatarElement = entity.getAvatar().getSkillDepot().getElementType();
ElementType ballElement = switch (elemBall.getItemId()) {
case 2001, 2017 -> ElementType.Fire;
case 2002, 2018 -> ElementType.Water;
case 2003, 2019 -> ElementType.Grass;
case 2004, 2020 -> ElementType.Electric;
case 2005, 2021 -> ElementType.Wind;
case 2006, 2022 -> ElementType.Ice;
case 2007, 2023 -> ElementType.Rock;
default -> null;
};
float elementBonus = (ballElement == null) ? 2.0f : (avatarElement == ballElement) ? 3.0f : 1.0f;
// Add the energy.
entity.addEnergy(baseEnergy * elementBonus * offFieldPenalty, PropChangeReason.PROP_CHANGE_ENERGY_BALL);
}
}
/**********
Energy logic related to using skills.
**********/
private void handleBurstCast(Avatar avatar, int skillId) {
// Don't do anything if energy usage is disabled.
if (!GAME_OPTIONS.energyUsage) {
return;
}
// If the cast skill was a burst, consume energy.
if (avatar.getSkillDepot() != null && skillId == avatar.getSkillDepot().getEnergySkill()) {
avatar.getAsEntity().clearEnergy(PropChangeReason.PROP_CHANGE_ABILITY);
}
}
public void handleEvtDoSkillSuccNotify(GameSession session, int skillId, int casterId) {
// Determine the entity that has cast the skill. Cancel if we can't find that avatar.
Optional<EntityAvatar> caster = this.player.getTeamManager().getActiveTeam().stream()
.filter(character -> character.getId() == casterId)
.findFirst();
if (caster.isEmpty()) {
return;
}
Avatar avatar = caster.get().getAvatar();
// Handle elemental burst.
this.handleBurstCast(avatar, skillId);
}
}