From 9bf793b93df88fb38c2f29d5ec7643d11899ef2f Mon Sep 17 00:00:00 2001
From: Blue <bluesansdouze@gmail.com>
Date: Wed, 6 May 2009 00:21:51 +0200
Subject: tmwserv - Warp fix

Prevent for warping in a unwalkable area, choose randomly a random place to
warp if the asked is unwalkable
Added a default value to map::getWalk too.
---
 src/game-server/map.hpp |  2 +-
 src/scripting/lua.cpp   | 24 +++++++++++++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/src/game-server/map.hpp b/src/game-server/map.hpp
index bbc33fea..059d9826 100644
--- a/src/game-server/map.hpp
+++ b/src/game-server/map.hpp
@@ -128,7 +128,7 @@ class Map
         /**
          * Gets walkability for a tile with a blocking bitmask
          */
-        bool getWalk(int x, int y, char walkmask) const;
+        bool getWalk(int x, int y, char walkmask = BLOCKMASK_WALL) const;
 
         /**
          * Returns the width of this map.
diff --git a/src/scripting/lua.cpp b/src/scripting/lua.cpp
index 4ea86985..b4bdb99b 100644
--- a/src/scripting/lua.cpp
+++ b/src/scripting/lua.cpp
@@ -192,8 +192,6 @@ static int npc_create(lua_State *s)
 
 static int npc_end(lua_State *s)
 {
-    LOG_WARN("Conversation's over !");
-
     NPC *p = getNPC(s, 1);
     Character *q = getCharacter(s, 2);
     if (!p || !q)
@@ -293,7 +291,27 @@ static int chr_warp(lua_State *s)
         raiseScriptError(s, "chr_warp called with a non-existing map.");
         return 0;
     }
-    GameState::enqueueWarp(q, m, lua_tointeger(s, 3), lua_tointeger(s, 4));
+
+    int x = lua_tointeger(s, 3);
+    int y = lua_tointeger(s, 4);
+
+    Map *map = m->getMap();
+
+    // If the wanted warp place is unwalkable
+    if (!map->getWalk(x / map->getTileWidth(), y / map->getTileHeight()))
+    {
+        int c = 50;
+        LOG_INFO("chr_warp called with a non-walkable place.");
+        do {
+            x = rand() % map->getWidth();
+            y = rand() % map->getHeight();
+            c--;
+        } while (!map->getWalk(x, y) && c);
+        x *= map->getTileWidth();
+        y *= map->getTileHeight();
+    }
+    GameState::enqueueWarp(q, m, x, y);
+
     return 0;
 }
 
-- 
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