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Implement proper 2×2 sapling check

objects
Wuzzy 2017-08-31 02:44:03 +02:00
parent 3ef0afd3c0
commit b9a5843ec7
1 changed files with 41 additions and 5 deletions
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46
mods/ITEMS/mcl_core/functions.lua
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@ -703,20 +703,56 @@ local sapling_grow_action = function(tree_id, soil_needed, one_by_one, two_by_tw
if stage >= 3 then
-- This sapling grows in a special way when there are 4 saplings in a 2×2 pattern
if two_by_two then
-- Check the other 3 saplings we haven't checked yet
local p2 = {x=pos.x+1, y=pos.y, z=pos.z}
local p3 = {x=pos.x, y=pos.y, z=pos.z-1}
local p4 = {x=pos.x+1, y=pos.y, z=pos.z-1}
-- Check 8 surrounding saplings and try to find a 2×2 pattern
local is_sapling = function(pos, sapling)
return minetest.get_node(pos).name == sapling
end
if is_sapling(p2, sapling) and is_sapling(p3, sapling) and is_sapling(p4, sapling) then
local p2 = {x=pos.x+1, y=pos.y, z=pos.z}
local p3 = {x=pos.x, y=pos.y, z=pos.z-1}
local p4 = {x=pos.x+1, y=pos.y, z=pos.z-1}
local p5 = {x=pos.x-1, y=pos.y, z=pos.z-1}
local p6 = {x=pos.x-1, y=pos.y, z=pos.z}
local p7 = {x=pos.x-1, y=pos.y, z=pos.z+1}
local p8 = {x=pos.x, y=pos.y, z=pos.z+1}
local p9 = {x=pos.x+1, y=pos.y, z=pos.z+1}
local s2 = is_sapling(p2, sapling)
local s3 = is_sapling(p3, sapling)
local s4 = is_sapling(p4, sapling)
local s5 = is_sapling(p5, sapling)
local s6 = is_sapling(p6, sapling)
local s7 = is_sapling(p7, sapling)
local s8 = is_sapling(p8, sapling)
local s9 = is_sapling(p9, sapling)
-- In a 9×9 field there are 4 possible 2×2 squares. We check them all.
if s2 and s3 and s4 then
-- Success: Remove saplings and place tree
minetest.remove_node(pos, {name="air"})
minetest.remove_node(p2, {name="air"})
minetest.remove_node(p3, {name="air"})
minetest.remove_node(p4, {name="air"})
mcl_core.generate_tree(pos, tree_id, true)
return
elseif s3 and s5 and s6 then
minetest.remove_node(pos, {name="air"})
minetest.remove_node(p3, {name="air"})
minetest.remove_node(p5, {name="air"})
minetest.remove_node(p6, {name="air"})
mcl_core.generate_tree(p6, tree_id, true)
return
elseif s6 and s7 and s8 then
minetest.remove_node(pos, {name="air"})
minetest.remove_node(p6, {name="air"})
minetest.remove_node(p7, {name="air"})
minetest.remove_node(p8, {name="air"})
mcl_core.generate_tree(p7, tree_id, true)
return
elseif s2 and s8 and s9 then
minetest.remove_node(pos, {name="air"})
minetest.remove_node(p2, {name="air"})
minetest.remove_node(p8, {name="air"})
minetest.remove_node(p9, {name="air"})
mcl_core.generate_tree(p8, tree_id, true)
return
end
end
-- If this sapling can grow alone