src/main/java/com/codingame/game/Model.java

   1 package com.codingame.game;
   2
   3 import java.util.Random;
   4 import java.util.Properties;
   5
   6 import com.codingame.gameengine.core.GameManager;
   7 import com.codingame.gameengine.core.MultiplayerGameManager;
   8 import com.google.inject.Inject;
   9
  10 class Model {
  11     @Inject private MultiplayerGameManager<com.codingame.game.Player> gameManager;
  12     @Inject private LeagueManager league;
  13     long seed;
  14     Random random;
  15     int roadLength;
  16     int initialStones;
  17     int trollPosition;
  18     Player p0, p1;
  19
  20     class Player {
  21         com.codingame.game.Player gp;
  22         int index;
  23         boolean hit;
  24
  25         Player(int i) {
  26             index = i;
  27             hit = false;
  28         }
  29
  30         void loseRound() {
  31             hit = true;
  32             winner = 1 - index;
  33         }
  34
  35         private int castlePosition;
  36         public int getCastlePosition() { return castlePosition; }
  37         public void setCastlePosition(int pos) { castlePosition = pos; }
  38
  39         private int multiplier;
  40         public int getMultiplier() { return multiplier; }
  41         public void setMultiplier(int m) { multiplier = m; }
  42
  43         class FailedToThrowStonesAndShouldHave extends Exception {}
  44         class ThrewMoreStonesThanHad extends Exception {}
  45
  46         private int stones;
  47         public int getStones() { return stones; }
  48         public void consumeStones(int n)
  49             throws ThrewMoreStonesThanHad,
  50                    FailedToThrowStonesAndShouldHave
  51         {
  52             if (n > stones) {
  53                 throw new ThrewMoreStonesThanHad();
  54             }
  55             if (n == 0 && stones > 0) {
  56                 throw new FailedToThrowStonesAndShouldHave();
  57             }
  58             setStones(stones - n);
  59         }
  60         public int consumeMaxStones() {
  61             int r = stones;
  62             stones = 0;
  63             return r;
  64         }
  65         public int consumeMinStones() {
  66             if (stones < 1) {
  67                 throw new Error("Internal error: tried to consume min stones on an empty heap.");
  68             }
  69             stones--;
  70             return 1;
  71         }
  72         public void setStones(int n) {
  73             stones = n;
  74         }
  75         public int getOppStones() {
  76             return p0.stones + p1.stones - stones;
  77         }
  78
  79         public void adjustScore(int trollPosition) {
  80             if (gp.isActive()) {
  81                 gp.setScore(Math.abs(castlePosition - trollPosition));
  82             }
  83         }
  84
  85         public int getTrollDistance() {
  86             return Math.abs(castlePosition - trollPosition);
  87         }
  88     }
  89
  90     void init() {
  91         seed = gameManager.getSeed();
  92         random = new Random(seed);
  93
  94         switch(league.mapLevel) {
  95         case SINGLE:
  96             roadLength = 6;
  97             initialStones = 15;
  98             break;
  99         case DISCRETE:
 100             int i = random.nextInt(4);
 101             switch (i) {
 102             case 0:
 103                 roadLength = 6;
 104                 initialStones = 15;
 105                 break;
 106             case 1:
 107                 roadLength = 6;
 108                 initialStones = 30;
 109                 break;
 110             case 2:
 111                 roadLength = 14;
 112                 initialStones = 30;
 113                 break;
 114             case 3:
 115                 roadLength = 14;
 116                 initialStones = 50;
 117                 break;
 118             }
 119             break;
 120         case CONTINUOUS:
 121             roadLength = 2 * (3 + random.nextInt(7-3+1));
 122             initialStones = 15 + random.nextInt(50-15+1);
 123             break;
 124         }
 125
 126         Properties ps = gameManager.getGameParameters();
 127         String buf = ps.getProperty("roadLength");
 128         if (buf != null) {
 129             try {
 130                 int i = Integer.parseInt(buf);
 131                 if (i < 0 || i > 20 || (i & 1) != 0) {
 132                     gameManager.addToGameSummary(GameManager.formatErrorMessage("Ignoring invalid road length: " + buf));
 133                 }
 134                 else {
 135                     roadLength = i;
 136                     gameManager.addToGameSummary("Road length overridden to " + i);
 137                 }
 138             }
 139             catch(NumberFormatException e) {
 140                 gameManager.addToGameSummary(GameManager.formatErrorMessage("Ill-formed road length: " + buf));
 141             }
 142         }
 143         ps.setProperty("roadLength", new Integer(roadLength).toString());
 144
 145         buf = ps.getProperty("initialStones");
 146         if (buf != null) {
 147             try {
 148                 int i = Integer.parseInt(buf);
 149                 if (i > 50) {
 150                     gameManager.addToGameSummary(GameManager.formatErrorMessage("Ignoring invalid initial stone count: " + buf));
 151                 }
 152                 else {
 153                     initialStones = i;
 154                     gameManager.addToGameSummary("Initial stone count overridden to " + buf);
 155                 }
 156             }
 157             catch (NumberFormatException e) {
 158                 gameManager.addToGameSummary(GameManager.formatErrorMessage("Ill-formed initial stone count: " + buf));
 159             }
 160         }
 161         ps.setProperty("initialStones", new Integer(initialStones).toString());
 162
 163         trollPosition = roadLength / 2;
 164
 165         p0 = new Player(0);
 166         p0.gp = gameManager.getPlayer(0);
 167         p0.setCastlePosition(0);
 168         p0.setMultiplier(1);
 169         p0.adjustScore(trollPosition);
 170         p0.setStones(initialStones);
 171
 172         p1 = new Player(1);
 173         p1.gp = gameManager.getPlayer(1);
 174         p1.setCastlePosition(roadLength);
 175         p1.setMultiplier(-1);
 176         p1.adjustScore(trollPosition);
 177         p1.setStones(initialStones);
 178     }
 179
 180     void moveTroll(int delta) {
 181         trollPosition += delta;
 182         if (trollPosition <= 0) {
 183             trollPosition = 0;
 184             winner = 1;
 185         }
 186         if (trollPosition >= roadLength) {
 187             trollPosition = roadLength;
 188             winner = 0;
 189         }
 190
 191         p0.adjustScore(trollPosition);
 192         p1.adjustScore(trollPosition);
 193     }
 194
 195     private Integer winner;
 196     boolean haveWinner() {
 197         return winner != null;
 198     }
 199
 200     int getWinner() { return winner; }
 201     int getLoser() { return 1 - winner; }
 202
 203     boolean exhausted() {
 204         return p0.getStones() <= 0 || p1.getStones() <= 0;
 205     }
 206 }