From 0df736173e60df06a7a7162c285b9c5731a07c20 Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Tue, 7 Apr 2015 23:04:48 -0400
Subject: Schematics: Prepend mod path to relative schematic filepaths

---
 src/script/lua_api/l_base.cpp   | 40 +++++++++++++++++++++++++++++++---------
 src/script/lua_api/l_base.h     |  3 ++-
 src/script/lua_api/l_mapgen.cpp |  8 +++++++-
 3 files changed, 40 insertions(+), 11 deletions(-)

(limited to 'src/script')

diff --git a/src/script/lua_api/l_base.cpp b/src/script/lua_api/l_base.cpp
index b8d673ee4..136fcc507 100644
--- a/src/script/lua_api/l_base.cpp
+++ b/src/script/lua_api/l_base.cpp
@@ -20,8 +20,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "lua_api/l_base.h"
 #include "lua_api/l_internal.h"
 #include "cpp_api/s_base.h"
+#include <mods.h>
+#include <server.h>
 
-ScriptApiBase* ModApiBase::getScriptApiBase(lua_State *L) {
+ScriptApiBase *ModApiBase::getScriptApiBase(lua_State *L)
+{
 	// Get server from registry
 	lua_getfield(L, LUA_REGISTRYINDEX, "scriptapi");
 	ScriptApiBase *sapi_ptr = (ScriptApiBase*) lua_touserdata(L, -1);
@@ -29,23 +32,42 @@ ScriptApiBase* ModApiBase::getScriptApiBase(lua_State *L) {
 	return sapi_ptr;
 }
 
-Server* ModApiBase::getServer(lua_State *L) {
+Server *ModApiBase::getServer(lua_State *L)
+{
 	return getScriptApiBase(L)->getServer();
 }
 
-Environment* ModApiBase::getEnv(lua_State *L) {
+Environment *ModApiBase::getEnv(lua_State *L)
+{
 	return getScriptApiBase(L)->getEnv();
 }
 
-GUIEngine* ModApiBase::getGuiEngine(lua_State *L) {
+GUIEngine *ModApiBase::getGuiEngine(lua_State *L)
+{
 	return getScriptApiBase(L)->getGuiEngine();
 }
 
-bool ModApiBase::registerFunction(lua_State *L,
-		const char *name,
-		lua_CFunction fct,
-		int top
-		) {
+std::string ModApiBase::getCurrentModPath(lua_State *L)
+{
+	lua_getfield(L, LUA_REGISTRYINDEX, "current_modname");
+	const char *current_modname = lua_tostring(L, -1);
+	if (!current_modname)
+		return ".";
+
+	const ModSpec *mod = getServer(L)->getModSpec(current_modname);
+	if (!mod)
+		return ".";
+
+	return mod->path;
+}
+
+
+bool ModApiBase::registerFunction(
+	lua_State *L,
+	const char *name,
+	lua_CFunction fct,
+	int top)
+{
 	//TODO check presence first!
 
 	lua_pushstring(L,name);
diff --git a/src/script/lua_api/l_base.h b/src/script/lua_api/l_base.h
index debbcd09b..c580e9597 100644
--- a/src/script/lua_api/l_base.h
+++ b/src/script/lua_api/l_base.h
@@ -35,11 +35,12 @@ class GUIEngine;
 
 class ModApiBase {
 
-protected:
+public:
 	static ScriptApiBase*   getScriptApiBase(lua_State *L);
 	static Server*          getServer(lua_State *L);
 	static Environment*     getEnv(lua_State *L);
 	static GUIEngine*       getGuiEngine(lua_State *L);
+	static std::string      getCurrentModPath(lua_State *L);
 
 	// Get an arbitrary subclass of ScriptApiBase
 	// by using dynamic_cast<> on getScriptApiBase()
diff --git a/src/script/lua_api/l_mapgen.cpp b/src/script/lua_api/l_mapgen.cpp
index cbe3610c8..d08cfea8a 100644
--- a/src/script/lua_api/l_mapgen.cpp
+++ b/src/script/lua_api/l_mapgen.cpp
@@ -32,6 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "mg_schematic.h"
 #include "mapgen_v5.h"
 #include "mapgen_v7.h"
+#include "filesys.h"
 #include "settings.h"
 #include "log.h"
 
@@ -142,7 +143,12 @@ Schematic *load_schematic(lua_State *L, int index,
 		return NULL;
 	} else if (lua_isstring(L, index)) {
 		schem = SchematicManager::create(SCHEMATIC_NORMAL);
-		if (!schem->loadSchematicFromFile(lua_tostring(L, index),
+
+		std::string filepath = lua_tostring(L, index);
+		if (!fs::IsPathAbsolute(filepath))
+			filepath = ModApiBase::getCurrentModPath(L) + DIR_DELIM + filepath;
+
+		if (!schem->loadSchematicFromFile(filepath.c_str(),
 				schemmgr->getNodeDef(), replace_names)) {
 			delete schem;
 			return NULL;
-- 
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