mirror of https://github.com/FreeCol/freecol.git
213 lines
5.3 KiB
Java
213 lines
5.3 KiB
Java
/**
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* Copyright (C) 2002-2022 The FreeCol Team
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*
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* This file is part of FreeCol.
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*
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* FreeCol is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* FreeCol is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with FreeCol. If not, see <http://www.gnu.org/licenses/>.
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*/
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package net.sf.freecol.common.model;
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import net.sf.freecol.common.i18n.Messages;
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import static net.sf.freecol.common.util.CollectionUtils.*;
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import static net.sf.freecol.common.util.StringUtils.*;
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/**
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* A measure of the tension between nations.
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*/
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public class Tension implements Named {
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// Minimum possible tension value.
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public static final int TENSION_MIN = 0;
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// Maximum possible tension value.
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public static final int TENSION_MAX = Level.HATEFUL.limit + 100;
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// Hysteresis value
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public static final int DELTA = 10;
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// Unit destroyed, etc
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public static final int TENSION_ADD_MINOR = 100;
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// Unit destroyed in a Settlement, etc
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public static final int TENSION_ADD_NORMAL = 200;
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// Unit destroyed in a capital, etc
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public static final int TENSION_ADD_MAJOR = 300;
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// Grab land without paying
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public static final int TENSION_ADD_LAND_TAKEN = 200;
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// Unit destroyed
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public static final int TENSION_ADD_UNIT_DESTROYED = 400;
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// Settlement attacked
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public static final int TENSION_ADD_SETTLEMENT_ATTACKED = 500;
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// Capital attacked
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public static final int TENSION_ADD_CAPITAL_ATTACKED = 600;
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// War inciter
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public static final int TENSION_ADD_WAR_INCITER = 250;
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// Tension modifiers
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public static final int CONTACT_MODIFIER = 0;
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public static final int ALLIANCE_MODIFIER = -500;
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public static final int DROP_ALLIANCE_MODIFIER = 200;
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public static final int PEACE_TREATY_MODIFIER = -250;
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public static final int CEASE_FIRE_MODIFIER = -250;
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public static final int WAR_MODIFIER = Level.HATEFUL.limit;
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public static final int RESUME_WAR_MODIFIER = 750; // War from cease fire
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/** Tension level to set when surrendering. */
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public static final int SURRENDERED
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= (Level.CONTENT.limit + Level.HAPPY.limit) / 2;
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/**
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* Constants for describing alarm levels.
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*/
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public enum Level {
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HAPPY(100),
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CONTENT(600),
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DISPLEASED(700),
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ANGRY(800),
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HATEFUL(1000);
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private final int limit;
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Level(int limit) {
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this.limit = limit;
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}
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public int getLimit() {
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return limit;
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}
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/**
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* Get a message key for the level.
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*
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* @return A message key.
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*/
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public String getKey() {
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return getEnumKey(this);
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}
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}
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private int value;
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/**
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* Create the default tension.
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*/
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public Tension() {
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setValue(Level.HAPPY.getLimit());
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}
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/**
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* Create tension at a specified level.
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*
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* @param newTension The level of tension.
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*/
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public Tension(int newTension) {
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setValue(newTension);
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}
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/**
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* Get the current tension value.
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*
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* @return The value of this {@code Tension}.
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*/
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public final int getValue() {
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return this.value;
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}
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/**
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* Sets the current tension value.
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*
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* @param newValue The new value of the tension.
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*/
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public final void setValue(int newValue) {
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if (newValue < TENSION_MIN) {
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value = TENSION_MIN;
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} else if (newValue > TENSION_MAX) {
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value = TENSION_MAX;
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} else {
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value = newValue;
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}
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}
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/**
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* Get the current tension level.
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*
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* @return The current level.
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*/
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public final Level getLevel() {
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return find(Level.values(), level -> value <= level.getLimit(),
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Level.HATEFUL);
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}
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/**
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* Modify the tension by the given amount.
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*
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* @param newTension The amount to modify tension by.
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*/
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public final void modify(int newTension) {
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setValue(value + newTension);
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}
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/**
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* Get the stem key.
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*
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* @return The tension stem key.
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*/
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public String getKey() {
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return "tension." + getLevel().getKey();
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}
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// Implement Named
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/**
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* {@inheritDoc}
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*/
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public String getNameKey() {
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return Messages.nameKey("model." + getKey());
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}
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// Override Object
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/**
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* {@inheritDoc}
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*/
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@Override
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public boolean equals(Object o) {
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if (this == o) return true;
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if (o instanceof Tension) {
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Tension other = (Tension)o;
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return this.value == other.value;
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}
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return false;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public int hashCode() {
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int hash = super.hashCode();
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hash = 31 * hash + this.value;
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return hash;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public String toString() {
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return getLevel().toString();
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}
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}
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