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display_blocks
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always check for air before spawning the display block's crystal, and 

always check for that crystal before trying to remove it.

keeps display blocks from being potentially destructive, reduces mapgen
activity to just the moment a block is placed instead of multiple
blocks/second.
master^2
Vanessa Ezekowitz 2013-10-04 21:11:26 -04:00
parent e4a20599d8
commit c536e9ca4e
1 changed files with 12 additions and 8 deletions
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20
init.lua
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@ -38,21 +38,25 @@ function disp(base, name, light, rec, rp)
minetest.register_abm({ minetest.register_abm({
nodenames = {"display_blocks:"..base.."_base"}, nodenames = {"display_blocks:"..base.."_base"},
interval = 1.0, interval = 2.0,
chance = 1.0, chance = 1.0,
action = function(pos, node, active_object_count, active_object_count_wider) action = function(pos, node, active_object_count, active_object_count_wider)
pos.y = pos.y + 1 pos.y = pos.y + 1
minetest.env:add_node(pos, {name="display_blocks:"..base.."_crystal"}) local n = minetest.get_node(pos)
if n and n.name == "air" then
minetest.env:add_node(pos, {name="display_blocks:"..base.."_crystal"})
end
end end
}) })
function remove_crystal(pos, node, active_object_count, active_object_count_wider) function remove_crystal(pos, node, active_object_count, active_object_count_wider)
if if node.name == "display_blocks:"..base.."_base" then
node.name == "display_blocks:"..base.."_base" pos.y = pos.y + 1
then local n = minetest.get_node(pos)
pos.y = pos.y + 1 if n and n.name == "display_blocks:"..base.."_crystal" then
minetest.env:remove_node(pos, {name="display_blocks:"..base.."_crystal"}) minetest.env:remove_node(pos)
end end
end
end end
minetest.register_on_dignode(remove_crystal) minetest.register_on_dignode(remove_crystal)