Gamelib/src/main/java/uulm/teamname/marvelous/gamelibrary/gamelogic/GameLogic.java

600 lines
27 KiB
Java

package uulm.teamname.marvelous.gamelibrary.gamelogic;
import uulm.teamname.marvelous.gamelibrary.IntVector2;
import uulm.teamname.marvelous.gamelibrary.Tuple;
import uulm.teamname.marvelous.gamelibrary.entities.*;
import uulm.teamname.marvelous.gamelibrary.entities.Character;
import uulm.teamname.marvelous.gamelibrary.events.*;
import uulm.teamname.marvelous.gamelibrary.events.Event;
import uulm.teamname.marvelous.gamelibrary.requests.CharacterRequest;
import uulm.teamname.marvelous.gamelibrary.requests.Request;
import uulm.teamname.marvelous.gamelibrary.requests.RequestType;
import java.awt.*;
import java.awt.geom.Line2D;
import java.util.ArrayList;
/** Contains game logic handling. */
class GameLogic {
/**
* Produces resulting {@link Event}s from a given {@link Request}.
* @param state The game state to execute on
* @param request The request to execute
* @return The list of resulting events
*/
public static ArrayList<Event> executeRequest(GameState state, Request request) {
ArrayList<Event> result = new ArrayList<>();
switch(request.type) {
case MeleeAttackRequest, RangedAttackRequest -> {
CharacterRequest data = (CharacterRequest)request;
result.add(new EventBuilder(request.type == RequestType.MeleeAttackRequest ? EventType.MeleeAttackEvent : EventType.RangedAttackEvent)
.withOriginEntity(data.originEntity)
.withTargetEntity(data.targetEntity)
.withOriginField(data.originField)
.withTargetField(data.targetField)
.withAmount(data.value)
.buildCharacterEvent());
result.add(new EventBuilder(EventType.ConsumedAPEvent)
.withTargetEntity(data.originEntity)
.withTargetField(data.originField)
.withAmount(1)
.buildEntityEvent());
result.add(new EventBuilder(EventType.TakenDamageEvent)
.withTargetEntity(data.targetEntity)
.withTargetField(data.targetField)
.withAmount(data.value)
.buildEntityEvent());
}
case MoveRequest -> {
CharacterRequest data = (CharacterRequest)request;
result.add(new EventBuilder(EventType.MoveEvent)
.withOriginEntity(data.originEntity)
.withOriginField(data.originField)
.withTargetField(data.targetField)
.buildCharacterEvent());
result.add(new EventBuilder(EventType.ConsumedMPEvent)
.withTargetEntity(data.originEntity)
.withTargetField(data.targetField) //when this event gets handled, the character already moved to the target field
.withAmount(1)
.buildEntityEvent());
for(Entity entity: state.entities.findByPosition(data.targetField)) {
if(entity instanceof Character) {
result.add(new EventBuilder(EventType.MoveEvent)
.withOriginEntity(entity.id)
.withOriginField(data.targetField)
.withTargetField(data.originField)
.buildCharacterEvent());
break; //we should only have one character per field anyways
}
}
}
case ExchangeInfinityStoneRequest, UseInfinityStoneRequest -> {
CharacterRequest data = (CharacterRequest)request;
result.add(new EventBuilder(request.type == RequestType.ExchangeInfinityStoneRequest ? EventType.ExchangeInfinityStoneEvent : EventType.UseInfinityStoneEvent)
.withOriginEntity(data.originEntity)
.withOriginField(data.originField)
.withTargetEntity(data.targetEntity)
.withTargetField(data.targetField)
.withStoneType(data.stoneType)
.buildCharacterEvent());
result.add(new EventBuilder(EventType.ConsumedAPEvent)
.withTargetEntity(data.originEntity)
.withTargetField(data.originField)
.withAmount(1)
.buildEntityEvent());
if(request.type == RequestType.UseInfinityStoneRequest) {
switch(((CharacterRequest) request).stoneType) {
case SpaceStone -> {
result.add(new EventBuilder(EventType.MoveEvent)
.withOriginEntity(data.originEntity)
.withOriginField(data.originField)
.withTargetField(data.targetField)
.buildCharacterEvent());
}
case MindStone -> {
EntityType target = data.originEntity.type == EntityType.P1 ? EntityType.P2 : EntityType.P1;
Line2D line = new Line2D.Float(data.originField.getX(), data.originField.getY(), data.targetField.getX(), data.targetField.getY());
for(int i = data.originField.getX(); i <= data.targetField.getX(); i++) {
for(int j = data.originField.getY(); j <= data.targetField.getY(); j++) {
var cell = new Rectangle.Float(i - 0.5f, j - 0.5f, 1, 1);
if(line.intersects(cell)) {
for(Entity entity: state.entities.findByPosition(data.targetField)) {
if(entity.id.isSameType(target)) {
result.add(new EventBuilder(EventType.TakenDamageEvent)
.withTargetEntity(entity.id)
.withTargetField(new IntVector2(i, j))
.withAmount(data.value)
.buildEntityEvent());
}
}
}
}
}
}
case RealityStone -> {
if(data.originEntity == data.targetEntity) { // => place stone
//TODO: use config values
result.add(new EventBuilder(EventType.SpawnEntityEvent)
.withTargetField(data.targetField)
.withEntity(new Rock(new EntityID(EntityType.Rocks, state.entities.findFreeRockSlot()), data.targetField, 100))
.buildEntityEvent());
}else { // => destroy stone
result.add(new EventBuilder(EventType.DestroyedEntityEvent)
.withTargetField(data.targetField)
.withTargetEntity(data.targetEntity)
.buildEntityEvent());
}
}
case PowerStone -> {
Character origin = (Character)state.entities.findEntity(data.originEntity);
int dmg = (int)Math.round(origin.hp.getValue() * 0.1);
if(origin.hp.getValue() != 1 && dmg > 0) {
result.add(new EventBuilder(EventType.TakenDamageEvent)
.withTargetEntity(data.originEntity)
.withTargetField(data.originField)
.withAmount(dmg)
.buildEntityEvent());
}
result.add(new EventBuilder(EventType.TakenDamageEvent)
.withTargetEntity(data.targetEntity)
.withTargetField(data.targetField)
.withAmount(data.value)
.buildEntityEvent());
}
case TimeStone -> {
Character origin = (Character)state.entities.findEntity(data.originEntity);
int ap = origin.ap.max - origin.ap.getValue();
if(ap < 0) {
result.add(new EventBuilder(EventType.ConsumedAPEvent)
.withTargetEntity(data.originEntity)
.withTargetField(data.originField)
.withAmount(ap)
.buildEntityEvent());
}
int mp = origin.mp.max - origin.mp.getValue();
if(mp < 0) {
result.add(new EventBuilder(EventType.ConsumedMPEvent)
.withTargetEntity(data.originEntity)
.withTargetField(data.originField)
.withAmount(mp)
.buildEntityEvent());
}
}
case SoulStone -> {
Character target = (Character)state.entities.findEntity(data.targetEntity);
result.add(new EventBuilder(EventType.HealedEvent)
.withTargetEntity(data.targetEntity)
.withTargetField(data.targetField)
.withAmount(target.hp.max)
.buildEntityEvent());
}
}
}
}
case Req -> {
result.add(buildGameStateEvent(state));
}
}
return result;
}
/**
* Builds a {@link EventType#GamestateEvent} for the given {@link GameState}.
* @param state The game state to use
* @return The resulting event
*/
public static Event buildGameStateEvent(GameState state) {
return new EventBuilder(EventType.GamestateEvent)
.withEntities(state.entities.export())
.withTurnOrder((EntityID[])state.turnOrder.toArray())
.withMapSize(state.mapSize)
.withActiveCharacter(state.activeCharacter)
.withStoneCooldowns(state.stoneCooldown.export())
.withWinCondition(state.won)
.buildGameStateEvent();
}
/**
* Checks a {@link Request} for validity for a {@link GameState}.
* @param state The game state to check on
* @param request The request to validate
* @return Whether or not the request is valid
*/
public static boolean checkRequest(GameState state, Request request) {
try {
switch(request.type) {
case MeleeAttackRequest, RangedAttackRequest -> {
CharacterRequest data = (CharacterRequest)request;
Character origin = getCharacter(state, data.originField, data.originEntity);
Character target = getCharacter(state, data.targetField, data.targetEntity);
requireAlive(origin);
requireAlive(target);
requireAP(origin, 1);
if(request.type == RequestType.MeleeAttackRequest) {
if(origin.meleeDamage != data.value) {
throw new InvalidRequestException();
}
if(data.originField.distanceChebyshev(data.targetField) > 1) {
throw new InvalidRequestException();
}
}else if(request.type == RequestType.RangedAttackRequest) {
if(origin.rangedDamage != data.value) {
throw new InvalidRequestException();
}
if(data.originField.distanceChebyshev(data.targetField) > origin.attackRange) {
throw new InvalidRequestException();
}
if(data.originField.distanceChebyshev(data.targetField) <= 1) {
throw new InvalidRequestException();
}
requireLineOfSight(state, data.originField, data.targetField);
}
return true;
}
case MoveRequest -> {
CharacterRequest data = (CharacterRequest)request;
Character origin = getCharacter(state, data.originField, data.originEntity);
requireAlive(origin);
requireMP(origin, 1);
verifyCoordinates(state, data.targetField);
if(data.originField.distanceChebyshev(data.targetField) != 1) {
throw new InvalidRequestException();
}
if(state.entities.blocksMovement(data.targetField)) {
throw new InvalidRequestException();
}
return true;
}
case ExchangeInfinityStoneRequest -> {
CharacterRequest data = (CharacterRequest)request;
Character origin = getCharacter(state, data.originField, data.originEntity);
Character target = getCharacter(state, data.targetField, data.targetEntity);
requireAlive(origin);
requireAlive(target);
requireAP(origin, 1);
requireInfinityStone(origin, data.stoneType);
if(data.originField.distanceChebyshev(data.targetField) != 1) {
throw new InvalidRequestException();
}
return true;
}
case UseInfinityStoneRequest -> {
CharacterRequest data = (CharacterRequest)request;
Character origin = getCharacter(state, data.originField, data.originEntity);
requireAlive(origin);
requireAP(origin, 1);
requireInfinityStone(origin, data.stoneType);
switch(((CharacterRequest) request).stoneType) {
case SpaceStone -> {
verifyCoordinates(state, data.targetField);
if(state.entities.blocksMovement(data.targetField)) {
throw new InvalidRequestException();
}
}
case MindStone -> {
if(data.originField == data.targetField) {
throw new InvalidRequestException();
}
//TODO: mind stone damage check (config) ???????
}
case RealityStone -> {
if(data.originEntity == data.targetEntity) { // => place stone
if(state.entities.findByPosition(data.targetField).size() != 0) {
throw new InvalidRequestException();
}
}else { // => destroy stone
boolean hasRock = false;
for(Entity entity: state.entities.findByPosition(data.targetField)) {
if(entity.id.isSameType(EntityType.Rocks)) {
hasRock = true;
break;
}
}
if(!hasRock) {
throw new InvalidRequestException();
}
}
}
case PowerStone -> {
Character target = getCharacter(state, data.targetField, data.targetEntity);
requireAlive(target);
if(origin.rangedDamage * 2 != data.value) {
throw new InvalidRequestException();
}
}
case TimeStone -> {
// "👍 i approve" - the server
}
case SoulStone -> {
Character target = getCharacter(state, data.targetField, data.targetEntity);
if(target.hp.getValue() != 0) {
throw new InvalidRequestException();
}
}
}
return true;
}
case Req -> {
return true;
}
}
}catch(Exception ignored) {
return false;
}
return false;
}
/**
* Retrieves a {@link Character} for a {@link Request}.
* @param state The game state to use
* @param position The requested position
* @param entityID The requested {@link EntityID}
* @return The found character
* @throws InvalidRequestException if the character is invalid or not found
*/
private static Character getCharacter(GameState state, IntVector2 position, EntityID entityID) throws InvalidRequestException {
Entity entity = state.entities.findEntity(entityID);
if(entity == null || entity.getPosition() != position || !(entity instanceof Character)) {
throw new InvalidRequestException();
}
try {
return (Character)entity;
}catch(Exception ignored) {
throw new InvalidRequestException();
}
}
/**
* Verifies that a {@link Character} is alive.
*/
private static void requireAlive(Character entity) throws InvalidRequestException {
if(entity.hp.getValue() <= 0 || !entity.isActive()) {
throw new InvalidRequestException();
}
}
/**
* Verifies that a {@link Character} has enough {@link StatType#AP}.
*/
private static void requireAP(Character entity, int ap) throws InvalidRequestException {
if(entity.ap.getValue() < ap) {
throw new InvalidRequestException();
}
}
/**
* Verifies that a {@link Character} has enough {@link StatType#MP}.
*/
private static void requireMP(Character entity, int mp) throws InvalidRequestException {
if(entity.mp.getValue() < mp) {
throw new InvalidRequestException();
}
}
/**
* Verifies that a {@link Character} has the required {@link StoneType}.
*/
private static void requireInfinityStone(Character entity, StoneType stone) throws InvalidRequestException {
if(stone == null || !entity.inventory.hasStone(stone)) {
throw new InvalidRequestException();
}
}
/**
* Verifies that coordinates are within the playing area.
*/
private static void verifyCoordinates(GameState state, IntVector2 position) throws InvalidRequestException {
if(position.getX() < 0 || position.getX() >= state.mapSize.getX() || position.getY() < 0 || position.getY() >= state.mapSize.getY()) {
throw new InvalidRequestException();
}
}
/**
* Verifies that there is a line of sight between two positions.
*/
private static void requireLineOfSight(GameState state, IntVector2 start, IntVector2 end) throws InvalidRequestException {
//naive code for the win!!! \o/
//at least its early exit and probably only O(ln(n*m))
//TODO: implement proper line rasterization algorithm in GameLogic.requireLineOfSight
Line2D line = new Line2D.Float(start.getX(), start.getY(), end.getX(), end.getY());
for(int i = start.getX(); i <= end.getX(); i++) {
for(int j = start.getY(); j <= end.getY(); j++) {
var cell = new Rectangle.Float(i - 0.5f, j - 0.5f, 1, 1);
if(line.intersects(cell)) {
if(state.entities.blocksVision(new IntVector2(i, j))) {
throw new InvalidRequestException();
}
}
}
}
}
/**
* Applies an {@link Event} to a {@link GameState}.
* @param state The game state to apply to
* @param event The event to apply
*/
public static void applyEvent(GameState state, Event event) {
switch(event.type) {
case DestroyedEntityEvent -> {
state.entities.removeEntity(((EntityEvent)event).targetEntity);
}
case TakenDamageEvent -> {
((Character)state.entities.findEntity(((CharacterEvent)event).targetEntity)).hp.decreaseValue(((CharacterEvent)event).amount);
}
case ConsumedAPEvent -> {
((Character)state.entities.findEntity(((CharacterEvent)event).targetEntity)).ap.decreaseValue(((CharacterEvent)event).amount);
}
case ConsumedMPEvent -> {
((Character)state.entities.findEntity(((CharacterEvent)event).targetEntity)).mp.decreaseValue(((CharacterEvent)event).amount);
}
case SpawnEntityEvent -> {
state.entities.addEntity(((EntityEvent)event).entity);
}
case HealedEvent -> {
((Character)state.entities.findEntity(((CharacterEvent)event).targetEntity)).hp.increaseValue(((CharacterEvent)event).amount);
}
case MoveEvent -> {
(state.entities.findEntity(((CharacterEvent)event).originEntity)).setPosition(((CharacterEvent)event).targetField);
}
case ExchangeInfinityStoneEvent -> {
((Character)state.entities.findEntity(((CharacterEvent)event).originEntity)).inventory.removeStone(((CharacterEvent)event).stoneType);
((Character)state.entities.findEntity(((CharacterEvent)event).targetEntity)).inventory.addStone(((CharacterEvent)event).stoneType);
}
}
}
/**
* Starts end of round handling if necessary.
* @param state The game state to work on
* @return The list of resulting {@link Event}s
*/
public static ArrayList<Event> checkTurnEnd(GameState state) {
if(
((Character) state.entities.findEntity(state.activeCharacter)).ap.getValue() <= 0 &&
((Character) state.entities.findEntity(state.activeCharacter)).mp.getValue() <= 0
) {
return handleTurnEnd(state);
}
return new ArrayList<>();
}
/**
* Handles everything that happens at the end of a turn, including new rounds.
* @param state The game state to work on
* @return The list of resulting {@link Event}s
*/
private static ArrayList<Event> handleTurnEnd(GameState state) {
ArrayList<Event> result = new ArrayList<>();
ArrayList<EntityID> order = state.turnOrder;
ArrayList<EntityID> alive = new ArrayList<>();
state.turnNumber++;
boolean newRound = false;
for (EntityID id: order) {
Character character = ((Character)state.entities.findEntity(id));
if(character.hp.getValue() > 0){
alive.add(id);
}
if(character.inventory.getFreeSlots() == 0) { // no slots => has all infinity stones
state.won = true;
result.add(new EventBuilder(EventType.WinEvent)
.withPlayerWon(character.id.id)
.buildGameEvent());
return result;
}
}
if(alive.isEmpty()) {
//thanos win handling
}else {
int activeIndex = alive.indexOf(state.activeCharacter);
if(activeIndex == alive.size() - 1) {
state.activeCharacter = alive.get(0);
//reached end of turn order, new round
state.roundNumber++;
newRound = true;
}else {
state.activeCharacter = alive.get(activeIndex + 1);
}
Character activeCharacter = (Character)state.entities.findEntity(state.activeCharacter);
result.add(new EventBuilder(EventType.ConsumedAPEvent)
.withTargetEntity(state.activeCharacter)
.withTargetField(activeCharacter.getPosition())
.withAmount(activeCharacter.ap.getValue() - activeCharacter.ap.max)
.buildGameEvent());
result.add(new EventBuilder(EventType.ConsumedMPEvent)
.withTargetEntity(state.activeCharacter)
.withTargetField(activeCharacter.getPosition())
.withAmount(activeCharacter.mp.getValue() - activeCharacter.mp.max)
.buildGameEvent());
result.add(new EventBuilder(EventType.TurnEvent)
.withTurnCount(alive.size())
.withNextCharacter(state.activeCharacter)
.buildGameEvent());
}
if(newRound) {
//special round handling
//shuffle turn order
/*
result.add(new EventBuilder(EventType.RoundSetupEvent)
.buildGameEvent());
*/
}
return result;
}
/**
* Checks a {@link GameState} for the current overtime win condition.
* @param state The game state to check
* @return The {@link ParticipantType} that is currently winning the game according to overtime ruling
*/
public static ParticipantType checkWinConditions(GameState state) {
//TODO: GameLogic.checkWinConditions is kind of ugly
Tuple<ParticipantType, WinCondition> player1;
Tuple<ParticipantType, WinCondition> player2;
int value1;
int value2;
for(WinCondition condition: WinCondition.values()) {
player1 = new Tuple<ParticipantType, WinCondition>(ParticipantType.Player1, condition);
player2 = new Tuple<ParticipantType, WinCondition>(ParticipantType.Player2, condition);
value1 = 0;
value2 = 0;
if(state.winConditions.containsKey(player1)) {
value1 = state.winConditions.get(player1);
}
if(state.winConditions.containsKey(player2)) {
value2 = state.winConditions.get(player2);
}
if(value1 > value2) {
return ParticipantType.Player1;
}
if(value2 > value1) {
return ParticipantType.Player2;
}
}
return ParticipantType.None;
}
}