Hardware coloring for itemstacks

Adds the possibility to colorize item stacks based on their metadata.

In the item/node definition you can specify palette (an image file)
and color (fallback color if the item has no palette or metadata).
Then you can add palette_index to the metadata.

Dropped itemstacks with different colors do not merge.

2 files changed, 15 insertions, 2 deletions

diff --git a/src/script/common/c_content.cpp b/src/script/common/c_content.cpp
index 99e12cd82..bcae874b9 100644
--- a/src/script/common/c_content.cpp
+++ b/src/script/common/c_content.cpp
@@ -58,6 +58,12 @@ ItemDefinition read_item_definition(lua_State* L,int index,
 	getstringfield(L, index, "description", def.description);
 	getstringfield(L, index, "inventory_image", def.inventory_image);
 	getstringfield(L, index, "wield_image", def.wield_image);
+	getstringfield(L, index, "palette", def.palette_image);
+
+	// Read item color.
+	lua_getfield(L, index, "color");
+	read_color(L, -1, &def.color);
+	lua_pop(L, 1);
 
 	lua_getfield(L, index, "wield_scale");
 	if(lua_istable(L, -1)){
@@ -118,7 +124,7 @@ ItemDefinition read_item_definition(lua_State* L,int index,
 
 /******************************************************************************/
 void read_object_properties(lua_State *L, int index,
-		ObjectProperties *prop)
+		ObjectProperties *prop, IItemDefManager *idef)
 {
 	if(index < 0)
 		index = lua_gettop(L) + 1 + index;
@@ -216,6 +222,10 @@ void read_object_properties(lua_State *L, int index,
 	}
 	lua_pop(L, 1);
 	getstringfield(L, -1, "infotext", prop->infotext);
+	lua_getfield(L, -1, "wield_item");
+	if (!lua_isnil(L, -1))
+		prop->wield_item = read_item(L, -1, idef).getItemString();
+	lua_pop(L, 1);
 }
 
 /******************************************************************************/
@@ -284,6 +294,8 @@ void push_object_properties(lua_State *L, ObjectProperties *prop)
 	lua_setfield(L, -2, "automatic_face_movement_max_rotation_per_sec");
 	lua_pushlstring(L, prop->infotext.c_str(), prop->infotext.size());
 	lua_setfield(L, -2, "infotext");
+	lua_pushlstring(L, prop->wield_item.c_str(), prop->wield_item.size());
+	lua_setfield(L, -2, "wield_item");
 }
 
 /******************************************************************************/
diff --git a/src/script/common/c_content.h b/src/script/common/c_content.h
index 10cccbb01..949b136eb 100644
--- a/src/script/common/c_content.h
+++ b/src/script/common/c_content.h
@@ -89,7 +89,8 @@ void               push_tool_capabilities    (lua_State *L,
 ItemDefinition     read_item_definition      (lua_State *L, int index,
                                               ItemDefinition default_def);
 void               read_object_properties    (lua_State *L, int index,
-                                              ObjectProperties *prop);
+                                              ObjectProperties *prop,
+                                              IItemDefManager *idef);
 void               push_object_properties    (lua_State *L,
                                               ObjectProperties *prop);