Added feature to check for air surrounding a tree's target spawn location, so

that trees won't grow on top of stuff line rails, other plants, etc.  Also
helps keep them from growing half-way into a wall.

diff --git a/init.lua b/init.lua
index 16161f8f3f8d0c54fb3308c8fb2c557816cc6a05..39249bf6e6d5f107727425df4efda9ea85e7b2ef 100644 (file)
--- a/init.lua
+++ b/init.lua
@@ -75,7 +75,9 @@ spawn_on_surfaces(
        15,                                                             -- but no higher than 15m
        {"default:water_source"},               -- Jungle trees must be near water
        JT_WATER_RADIUS,                                -- within this radius of it (default 25)
-       JT_WATER_COUNT                                  -- with this many water nodes in the area
+       JT_WATER_COUNT,                                 -- with this many water nodes in the area
+       1,                                                              -- air size area of 1 (+/- 1 node in X and Z directions)
+       9                                                               -- there must be 9 air nodes in the area
 )
 
 spawn_on_surfaces(
@@ -93,7 +95,9 @@ spawn_on_surfaces(
        nil,
        nil,
        CONIFERS_ALTITUDE,
-       nil                                     
+       nil,
+       1,
+       9
 )      
 
 -- growing functions
@@ -209,7 +213,6 @@ function grow_jungletree(pos, noise)
 
        minetest.env:remove_node(pos)
        local leaves = minetest.env:find_nodes_in_area({x = pos.x-1, y = pos.y, z = pos.z-1}, {x = pos.x+1, y = pos.y+10, z = pos.z+1}, "default:leaves")
-
        for leaf in ipairs(leaves) do
                        minetest.env:remove_node(leaves[leaf])
        end
@@ -232,7 +235,6 @@ function grow_conifer(pos, noise)
 
        minetest.env:remove_node(pos)
        local leaves = minetest.env:find_nodes_in_area({x = pos.x, y = pos.y, z = pos.z}, {x = pos.x, y = pos.y+5, z = pos.z}, "default:leaves")
-
        for leaf in ipairs(leaves) do
                        minetest.env:remove_node(leaves[leaf])
        end