forked from LizzyFleckenstein03/Memeclone
Boost performance of chorus plant digging
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@ -24,9 +24,21 @@ local function round(num, idp)
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return math.floor(num * mult + 0.5) / mult
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return math.floor(num * mult + 0.5) / mult
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end
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end
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-- This is a list of nodes that SHOULD NOT call their detach function
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local no_detach = {}
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-- This detaches all chorus plants that are/were attached
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-- This detaches all chorus plants that are/were attached
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-- at start_pos.
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-- at start_pos.
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mcl_end.detach_chorus_plant = function(start_pos, digger)
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mcl_end.detach_chorus_plant = function(start_pos, digger)
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-- This node should not call a detach function, do NOTHING
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local hash = minetest.hash_node_position(start_pos)
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if no_detach[hash] ~= nil then
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return
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end
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-- This node SHOULD be detached, make sure no others are
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no_detach = {}
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local neighbors = {
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local neighbors = {
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{ x=0, y=1, z=0 },
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{ x=0, y=1, z=0 },
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{ x=0, y=0, z=1 },
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{ x=0, y=0, z=1 },
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@ -52,33 +64,42 @@ mcl_end.detach_chorus_plant = function(start_pos, digger)
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local break_tree = true
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local break_tree = true
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while #check_posses > 0 do
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while #check_posses > 0 do
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local pos = check_posses[1]
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local pos = check_posses[1]
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local node = minetest.get_node(pos)
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touched_nodes_hashes[minetest.hash_node_position(pos)] = true
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-- Don't just count neighbors as being touched, count THIS NODE as well
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if node.name == "mcl_end:end_stone" then
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-- This will prevent it from getting stuck in an endless loop
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-- End stone found, the algorithm ends here (haha!)
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if not touched_nodes_hashes[minetest.hash_node_position(pos)] then
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-- without destroying any nodes, because chorus plants
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local node = minetest.get_node(pos)
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-- attach to end stone.
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touched_nodes_hashes[minetest.hash_node_position(pos)] = true
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break_tree = false
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if node.name == "mcl_end:end_stone" then
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break
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-- End stone found, the algorithm ends here (haha!)
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elseif minetest.get_item_group(node.name, "chorus_plant") == 1 then
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-- without destroying any nodes, because chorus plants
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table.insert(chorus_nodes, pos)
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-- attach to end stone.
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for i=1, #neighbors do
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break_tree = false
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local newpos = vector.add(pos, neighbors[i])
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break
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if not touched_nodes_hashes[minetest.hash_node_position(newpos)] then
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elseif minetest.get_item_group(node.name, "chorus_plant") == 1 then
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table.insert(check_posses, vector.add(pos, neighbors[i]))
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table.insert(chorus_nodes, pos)
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for i=1, #neighbors do
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local newpos = vector.add(pos, neighbors[i])
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if not touched_nodes_hashes[minetest.hash_node_position(newpos)] then
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table.insert(check_posses, vector.add(pos, neighbors[i]))
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end
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end
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end
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end
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end
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end
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end
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table.remove(check_posses, 1)
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table.remove(check_posses, 1)
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end
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end
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if break_tree then
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if break_tree then
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-- If we traversed the entire chorus plant and it was not attached to end stone:
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-- If we traversed the entire chorus plant and it was not attached to end stone:
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-- Drop ALL the chorus nodes we found.
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-- Drop ALL the chorus nodes we found.
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for c=1, #chorus_nodes do
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for c=1, #chorus_nodes do
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no_detach[ minetest.hash_node_position(chorus_nodes[c]) ] = true
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minetest.node_dig(chorus_nodes[c], { name = "mcl_end:chorus_plant" }, digger)
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minetest.node_dig(chorus_nodes[c], { name = "mcl_end:chorus_plant" }, digger)
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end
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end
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end
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end
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end
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end
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no_detach = {}
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end
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end
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mcl_end.check_detach_chorus_plant = function(pos, oldnode, oldmetadata, digger)
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mcl_end.check_detach_chorus_plant = function(pos, oldnode, oldmetadata, digger)
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