* better glass graphics

[minetest.git] / src / mapnode.h

diff --git a/src/mapnode.h b/src/mapnode.h
index d456cf88391cf169ecb0341bc33f7b97fcd75bb7..ad256585ff425aaa3c2f232c0fa709546b5bbac0 100644 (file)
--- a/src/mapnode.h
+++ b/src/mapnode.h
@@ -99,6 +99,9 @@ void init_content_inventory_texture_paths();
 //#define CONTENT_WORKBENCH 17
 #define CONTENT_COBBLE 18
 #define CONTENT_STEEL 19
+#define CONTENT_GLASS 20
+#define CONTENT_FENCE 21
+#define CONTENT_SANDSTONE 22
 
 /*
        Content feature list
@@ -147,14 +150,23 @@ struct ContentFeatures
        bool light_propagates;
        bool sunlight_propagates;
        u8 solidness; // Used when choosing which face is drawn
+       // This is used for collision detection.
+       // Also for general solidness queries.
        bool walkable;
+       // Player can point to these
        bool pointable;
+       // Player can dig these
        bool diggable;
+       // Player can build on these
        bool buildable_to;
+       // Whether the node has no liquid, source liquid or flowing liquid
        enum LiquidType liquid_type;
-       // If true, param2 is set to direction when placed
+       // If true, param2 is set to direction when placed. Used for torches.
        // NOTE: the direction format is quite inefficient and should be changed
        bool wall_mounted;
+       // If true, node is equivalent to air. Torches are, air is. Water is not.
+       // Is used for example to check whether a mud block can have grass on.
+       bool air_equivalent;
        
        // Inventory item string as which the node appears in inventory when dug.
        // Mineral overrides this.
@@ -180,6 +192,7 @@ struct ContentFeatures
                buildable_to = false;
                liquid_type = LIQUID_NONE;
                wall_mounted = false;
+               air_equivalent = false;
                dug_item = "";
                initial_metadata = NULL;
        }