From d436967e4761b38714fd3410e4907fab829f925d Mon Sep 17 00:00:00 2001
From: Steve Cotton <steve@s.cotton.clara.co.uk>
Date: Sat, 11 Apr 2009 22:04:13 +0100
Subject: TMXCollide wasn't handling tilesets right.

Wasn't using the translation table from template map's tilesets to
target map's tilesets.

Also WIP for tmx_random_fill: better control of number of objects added
---
 tools/tmxcopy/map.cpp | 15 +++++++++++----
 tools/tmxcopy/map.hpp | 12 ++++++++++--
 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/tools/tmxcopy/map.cpp b/tools/tmxcopy/map.cpp
index 109d1742..9e01944c 100644
--- a/tools/tmxcopy/map.cpp
+++ b/tools/tmxcopy/map.cpp
@@ -392,6 +392,8 @@ bool Map::randomFill(Map* templateMap, const std::string& destLayerName,
     /* Now generate extra tiles.
      * TODO Need to configure this for desired density.  For 2x1 trees, dW*dH/10 is very sparse, dW*dH/2 is dense */
     srand(time(NULL));
+    int patternsGenerated = 0;
+    int occupiedAreas = 0;
     for (int i = destWidth*destHeight / 10; i > 0; i--)
     {
         /* Pick a random location, with enough tiles left and down from it to
@@ -429,14 +431,16 @@ bool Map::randomFill(Map* templateMap, const std::string& destLayerName,
                     destTile.index = srcTile.index;
                 }
             }
+            patternsGenerated++;
         }
         else
         {
+            occupiedAreas++;
             std::cout <<"Area occupied "<<x<<", "<<y<<std::endl;
         }
     }
 
-    std::clog<<"copying successful!"<<std::endl;
+    std::clog<<"Generated " << patternsGenerated << " new objects" <<std::endl;
     return true;
 }
 
@@ -469,11 +473,14 @@ bool Map::translateAllLayers(Map* templateMap, const std::string& destLayerName,
     for (int xy = (templateMap->getWidth() * templateMap->getHeight() -1);
         xy >= 0; xy--)
     {
-        Tile& fromTile = fromLayer->at(xy);
-        Tile& toTile = toLayer->at(xy);
+        Tile fromTile = fromLayer->at(xy);
+        Tile toTile = toLayer->at(xy);
         if (!fromTile.empty())
         {
-            collisionTranslation[fromTile] = toTile;  //FIXME - just getting it compiling so far
+            fromTile.tileset = tilesetTranslation[fromTile.tileset];
+            toTile.tileset = tilesetTranslation[toTile.tileset];
+
+            collisionTranslation[fromTile] = toTile;
         }
     }
 
diff --git a/tools/tmxcopy/map.hpp b/tools/tmxcopy/map.hpp
index d6cd3d1a..3be932ab 100644
--- a/tools/tmxcopy/map.hpp
+++ b/tools/tmxcopy/map.hpp
@@ -69,6 +69,13 @@ struct Tileset
 
 };
 
+/**
+ * A tile in a layer of a map.
+ *
+ * With the exception of the emptyTile and empty() function,
+ * interpreting what this tile represents depends on the map it
+ * belongs to (specifically the ordering of that map's tilesets).
+ */
 struct Tile
 {
     int tileset; // number of tileset
@@ -82,7 +89,8 @@ struct Tile
     /* This is to allow std::map<Tile,Tile> */
     bool operator< (const Tile& b) const
     {
-        return ((tileset < b.tileset) || (index < b.index));
+        return ((tileset < b.tileset) ||
+            ((tileset == b.tileset) && (index < b.index)));
     }
 
     bool operator!= (const Tile& b) const
@@ -144,7 +152,7 @@ class Map
 
         /**
          * Translates a layer - using the template, generates collision from visible layers (for example).
-         * TODO - avoid confusion with the math term "translate"
+         * TODO - avoid confusion with the geometry term "translate"
          */
         bool translateAllLayers(Map* templateMap, const std::string& destLayerName,
                     const ConfigurationOptions& config);
-- 
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