From 9b760a3cfee8964620f8faed051159fd1ee4ba42 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Zurcher?= <jeremy@asynk.ch>
Date: Mon, 4 Jan 2016 23:46:33 +0100
Subject: PathBuilder: replace setExit(Orientation) with
 chooseExit(Orientation)

---
 .../ch/asynk/rustanddust/engine/PathBuilder.java   | 49 +++++++++++++++++-----
 .../ch/asynk/rustanddust/game/map/Map2Moves.java   |  2 +-
 .../rustanddust/game/states/StateWithdraw.java     |  6 +--
 3 files changed, 41 insertions(+), 16 deletions(-)

diff --git a/core/src/ch/asynk/rustanddust/engine/PathBuilder.java b/core/src/ch/asynk/rustanddust/engine/PathBuilder.java
index f96c06f..3bd057b 100644
--- a/core/src/ch/asynk/rustanddust/engine/PathBuilder.java
+++ b/core/src/ch/asynk/rustanddust/engine/PathBuilder.java
@@ -151,6 +151,44 @@ public class PathBuilder implements Disposable
         return 1;
     }
 
+    public int chooseExit(Orientation o)
+    {
+        List<Path> ps = getPaths();
+
+        Path good = ps.get(0);
+        int mvt = pawn.getMovementPoints();
+        int cost = to.exitCost();
+        int rBonus = (to.road(o) ? pawn.getRoadMarchBonus() : 0);
+
+        if (ps.size() > 1) {
+            good = null;
+            for (Path p : getPaths()) {
+                if (pathCanExit(p, mvt, cost, rBonus)) {
+                    if (good != null) {
+                        if ( (p.fitness > good.fitness) || ((p.fitness == good.fitness) && (p.cost < good.cost)))
+                            good = p;
+                    } else {
+                        good = p;
+                    }
+                }
+            }
+
+            keepOnly(good);
+        }
+
+        if (!pathCanExit(good, mvt, cost, rBonus))
+            throw new RuntimeException("chosen path can't exit");
+
+        orientation = o;
+        if (from != to) {
+            good.cost += 1;
+            good.tiles.add(to);
+        }
+        to = board.getAdjTileAt(to, o);
+
+        return 1;
+    }
+
     private void keepOnly(Path path)
     {
         getPaths().remove(path);
@@ -293,17 +331,6 @@ public class PathBuilder implements Disposable
         return filteredPaths.get(i);
     }
 
-    public void setExit(Orientation o)
-    {
-        orientation = o;
-        Path path = getPath(0);
-        if (from != to) {
-            path.cost += 1;
-            path.tiles.add(to);
-        }
-        to = board.getAdjTileAt(to, o);
-    }
-
     private void printToErr(String what, List<Path> paths)
     {
         System.err.println(what + " " + paths.size() + " - " + from + " -> " + to);
diff --git a/core/src/ch/asynk/rustanddust/game/map/Map2Moves.java b/core/src/ch/asynk/rustanddust/game/map/Map2Moves.java
index 411e2c9..738de2b 100644
--- a/core/src/ch/asynk/rustanddust/game/map/Map2Moves.java
+++ b/core/src/ch/asynk/rustanddust/game/map/Map2Moves.java
@@ -72,10 +72,10 @@ public abstract class Map2Moves extends Map1Units
     public void pathsSetOrientation(Orientation o)  { paths.orientation = o; }
     public boolean pathsIsSet()                     { return paths.isSet(); }
     public boolean pathsCanExit(Orientation o)      { return paths.canExit(o); }
-    public void pathsSetExit(Orientation o)         { paths.setExit(o); }
     public boolean pathsContains(Hex hex)           { return paths.contains(hex); }
     public int pathsChooseBest()                    { return paths.chooseBest(); }
     public int pathsChooseShortest()                { return paths.chooseShortest(); }
+    public int pathsChooseExit(Orientation o)       { return paths.chooseExit(o); }
     public int pathsToggleHex(Hex hex)
     {
         boolean enable = !hex.isOverlayEnabled(Hex.MOVE);
diff --git a/core/src/ch/asynk/rustanddust/game/states/StateWithdraw.java b/core/src/ch/asynk/rustanddust/game/states/StateWithdraw.java
index a759e51..12bb3c4 100644
--- a/core/src/ch/asynk/rustanddust/game/states/StateWithdraw.java
+++ b/core/src/ch/asynk/rustanddust/game/states/StateWithdraw.java
@@ -43,14 +43,12 @@ public class StateWithdraw extends StateCommon
         if (map.pathsTo() == null)
             map.pathsBuild(hex);
 
-        if (map.pathsSize() > 1)
-            RustAndDust.debug("ERROR: Withdraw pathsSize() == " + map.pathsSize());
-
         Hex exitHex = (Hex) map.pathsTo();
         if (!exitZone.contains(exitHex))
             throw new RuntimeException(String.format("%s not in exitZone", exitHex));
 
-        map.pathsSetExit(exitZone.orientation);
+        if (map.pathsChooseExit(exitZone.orientation) > 1)
+            RustAndDust.debug("ERROR: Withdraw pathsSize() == " + map.pathsSize());
 
         unit.hideActiveable();
         if (to != null)
-- 
cgit v1.1-2-g2b99