Update nodes papyrus can grow on, include default:dry_dirt (#2705)

Fixes papyrus not growing on savanna dirt.
Also updates the nodes papyrus can grow on, which were incorrect for a long time.

diff --git a/mods/default/functions.lua b/mods/default/functions.lua
index 16bdd79853e3fe89a8cc41a9893080af11e207fe..3dd7a00805787c4877d67c259bcb48dec354795f 100644 (file)
--- a/mods/default/functions.lua
+++ b/mods/default/functions.lua
@@ -210,7 +210,12 @@ end
 function default.grow_papyrus(pos, node)
        pos.y = pos.y - 1
        local name = minetest.get_node(pos).name
-       if name ~= "default:dirt_with_grass" and name ~= "default:dirt" then
+       if name ~= "default:dirt" and
+                       name ~= "default:dirt_with_grass" and
+                       name ~= "default:dirt_with_dry_grass" and
+                       name ~= "default:dirt_with_rainforest_litter" and
+                       name ~= "default:dry_dirt" and
+                       name ~= "default:dry_dirt_with_dry_grass" then
                return
        end
        if not minetest.find_node_near(pos, 3, {"group:water"}) then
@@ -247,7 +252,17 @@ minetest.register_abm({
 minetest.register_abm({
        label = "Grow papyrus",
        nodenames = {"default:papyrus"},
-       neighbors = {"default:dirt", "default:dirt_with_grass"},
+       -- Grows on the dirt and surface dirt nodes of the biomes papyrus appears in,
+       -- including the old savanna nodes.
+       -- 'default:dirt_with_grass' is here only because it was allowed before.
+       neighbors = {
+               "default:dirt",
+               "default:dirt_with_grass",
+               "default:dirt_with_dry_grass",
+               "default:dirt_with_rainforest_litter",
+               "default:dry_dirt",
+               "default:dry_dirt_with_dry_grass",
+       },
        interval = 14,
        chance = 71,
        action = function(...)