Generate clay

diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index f38eef0f2bae919f1888156710d39b6d510c9ad8..7bf23427892f9b19a03b61a466d222cdd7b92217 100644 (file)
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -40,7 +40,37 @@ end
 minetest.register_on_generated(function(minp, maxp, seed)
        generate_ore("default:stone_with_coal", "default:stone", minp, maxp, seed,   1/8/8/8, 5, -64, 64)
        generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/16/16/16, 5, 3, 7)
-       generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/12/12/12, 5, -16, 2)
-       generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+1, 1/9/9/9, 5, -64, -17)
+       generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+2, 1/12/12/12, 5, -16, 2)
+       generate_ore("default:stone_with_iron", "default:stone", minp, maxp, seed+3, 1/9/9/9, 5, -64, -17)
+       -- Generate clay
+       if maxp.y >= 2 and minp.y <= 0 then
+               -- Assume X and Z lengths are equal
+               local divlen = 4
+               local divs = (maxp.x-minp.x)/divlen+1;
+               for divx=1,divs do
+               for divz=1,divs do
+                       local cx = minp.x + math.floor((divx+0.5)*divlen)
+                       local cz = minp.z + math.floor((divz+0.5)*divlen)
+                       local is_shallow = true
+                       if minetest.env:get_node({x=cx-divlen*2,y=1,z=cz+0}).name == "default:water_source" or
+                                       minetest.env:get_node({x=cx+divlen*2,y=1,z=cz+0}).name == "default:water_source" or
+                                       minetest.env:get_node({x=cx,y=1,z=cz-divlen*2}).name == "default:water_source" or
+                                       minetest.env:get_node({x=cx,y=1,z=cz+divlen*2}).name == "default:water_source" then
+                               is_shallow = false
+                       end     
+                       if is_shallow and
+                                       minetest.env:get_node({x=cx,y=1,z=cz}).name == "default:water_source" and
+                                       minetest.env:get_node({x=cx,y=0,z=cz}).name == "default:sand" then
+                               for x1=-divlen,divlen do
+                               for z1=-divlen,divlen do
+                                       if minetest.env:get_node({x=cx+x1,y=0,z=cz+z1}).name == "default:sand" then
+                                               minetest.env:set_node({x=cx+x1,y=0,z=cz+z1}, {name="default:clay"})
+                                       end
+                               end
+                               end
+                       end
+               end
+               end
+       end
 end)