mirror of
https://github.com/minetest-mods/technic.git
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Chainsaw: Partial rewrite, various improvements (#607)
Introduces protection checks for the entire tree More efficient node digging (VoxelManip) Improved drop handling using detached inventories for correct stack sizes Approximate speed-up of approx. 7x compared to the previous code for a giant sequoia.
This commit is contained in:
SmallJoker
GitHub
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@ -1,338 +1,212 @@
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-- Configuration
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local chainsaw_max_charge = 30000 -- Maximum charge of the saw
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-- Gives 2500 nodes on a single charge (about 50 complete normal trees)
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local chainsaw_charge_per_node = 12
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-- Cut down tree leaves. Leaf decay may cause slowness on large trees
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-- if this is disabled.
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local chainsaw_leaves = true
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-- First value is node name; second is whether the node is considered even if chainsaw_leaves is false.
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local nodes = {
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-- The default trees
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{"default:acacia_tree", true},
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{"default:aspen_tree", true},
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{"default:jungletree", true},
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{"default:papyrus", true},
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{"default:cactus", true},
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{"default:tree", true},
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{"default:apple", true},
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{"default:pine_tree", true},
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{"default:acacia_leaves", false},
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{"default:aspen_leaves", false},
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{"default:leaves", false},
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{"default:jungleleaves", false},
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{"default:pine_needles", false},
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local chainsaw_efficiency = 0.95 -- Drops less items
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-- The default bushes
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{"default:acacia_bush_stem", true},
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{"default:bush_stem", true},
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{"default:pine_bush_stem", true},
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{"default:acacia_bush_leaves", false},
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{"default:blueberry_bush_leaves", false},
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{"default:blueberry_bush_leaves_with_berries", false},
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{"default:bush_leaves", false},
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{"default:pine_bush_needles", false},
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-- Rubber trees from moretrees or technic_worldgen if moretrees isn't installed
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{"moretrees:rubber_tree_trunk_empty", true},
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{"moretrees:rubber_tree_trunk", true},
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{"moretrees:rubber_tree_leaves", false},
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-- Support moretrees (trunk)
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{"moretrees:acacia_trunk", true},
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{"moretrees:apple_tree_trunk", true},
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{"moretrees:beech_trunk", true},
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{"moretrees:birch_trunk", true},
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{"moretrees:cedar_trunk", true},
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{"moretrees:date_palm_ffruit_trunk", true},
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{"moretrees:date_palm_fruit_trunk", true},
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{"moretrees:date_palm_mfruit_trunk", true},
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{"moretrees:date_palm_trunk", true},
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{"moretrees:fir_trunk", true},
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{"moretrees:jungletree_trunk", true},
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{"moretrees:oak_trunk", true},
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{"moretrees:palm_trunk", true},
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{"moretrees:palm_fruit_trunk", true},
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{"moretrees:palm_fruit_trunk_gen", true},
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{"moretrees:pine_trunk", true},
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{"moretrees:poplar_trunk", true},
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{"moretrees:sequoia_trunk", true},
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{"moretrees:spruce_trunk", true},
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{"moretrees:willow_trunk", true},
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-- Support moretrees (leaves)
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{"moretrees:acacia_leaves", false},
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{"moretrees:apple_tree_leaves", false},
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{"moretrees:beech_leaves", false},
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{"moretrees:birch_leaves", false},
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{"moretrees:cedar_leaves", false},
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{"moretrees:date_palm_leaves", false},
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{"moretrees:fir_leaves", false},
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{"moretrees:fir_leaves_bright", false},
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{"moretrees:jungletree_leaves_green", false},
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{"moretrees:jungletree_leaves_yellow", false},
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{"moretrees:jungletree_leaves_red", false},
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{"moretrees:oak_leaves", false},
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{"moretrees:palm_leaves", false},
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{"moretrees:poplar_leaves", false},
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{"moretrees:pine_leaves", false},
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{"moretrees:sequoia_leaves", false},
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{"moretrees:spruce_leaves", false},
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{"moretrees:willow_leaves", false},
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-- Support moretrees (fruit)
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{"moretrees:acorn", false},
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{"moretrees:apple_blossoms", false},
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{"moretrees:cedar_cone", false},
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{"moretrees:coconut", false},
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{"moretrees:coconut_0", false},
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{"moretrees:coconut_1", false},
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{"moretrees:coconut_2", false},
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{"moretrees:coconut_3", false},
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{"moretrees:dates_f0", false},
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{"moretrees:dates_f1", false},
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{"moretrees:dates_f2", false},
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{"moretrees:dates_f3", false},
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{"moretrees:dates_f4", false},
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{"moretrees:dates_fn", false},
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{"moretrees:dates_m0", false},
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{"moretrees:dates_n", false},
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{"moretrees:fir_cone", false},
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{"moretrees:pine_cone", false},
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{"moretrees:spruce_cone", false},
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-- Support growing_trees
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{"growing_trees:trunk", true},
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{"growing_trees:medium_trunk", true},
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{"growing_trees:big_trunk", true},
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{"growing_trees:trunk_top", true},
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{"growing_trees:trunk_sprout", true},
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{"growing_trees:branch_sprout", true},
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{"growing_trees:branch", true},
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{"growing_trees:branch_xmzm", true},
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{"growing_trees:branch_xpzm", true},
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{"growing_trees:branch_xmzp", true},
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{"growing_trees:branch_xpzp", true},
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{"growing_trees:branch_zz", true},
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{"growing_trees:branch_xx", true},
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{"growing_trees:leaves", false},
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-- Support cool_trees
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{"bamboo:trunk", true},
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{"bamboo:leaves", false},
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{"birch:trunk", true},
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{"birch:leaves", false},
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{"cherrytree:trunk", true},
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{"cherrytree:blossom_leaves", false},
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{"cherrytree:leaves", false},
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{"chestnuttree:trunk", true},
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{"chestnuttree:leaves", false},
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{"clementinetree:trunk", true},
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{"clementinetree:leaves", false},
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{"ebony:trunk", true},
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{"ebony:creeper", false},
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{"ebony:creeper_leaves", false},
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{"ebony:leaves", false},
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{"jacaranda:trunk", true},
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{"jacaranda:blossom_leaves", false},
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{"larch:trunk", true},
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{"larch:leaves", false},
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{"lemontree:trunk", true},
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{"lemontree:leaves", false},
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{"mahogany:trunk", true},
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{"mahogany:leaves", false},
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{"palm:trunk", true},
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{"palm:leaves", false},
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-- Support growing_cactus
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{"growing_cactus:sprout", true},
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{"growing_cactus:branch_sprout_vertical", true},
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{"growing_cactus:branch_sprout_vertical_fixed", true},
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{"growing_cactus:branch_sprout_xp", true},
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{"growing_cactus:branch_sprout_xm", true},
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{"growing_cactus:branch_sprout_zp", true},
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{"growing_cactus:branch_sprout_zm", true},
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{"growing_cactus:trunk", true},
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{"growing_cactus:branch_trunk", true},
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{"growing_cactus:branch", true},
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{"growing_cactus:branch_xp", true},
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{"growing_cactus:branch_xm", true},
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{"growing_cactus:branch_zp", true},
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{"growing_cactus:branch_zm", true},
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{"growing_cactus:branch_zz", true},
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{"growing_cactus:branch_xx", true},
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-- Support farming_plus
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{"farming_plus:banana_leaves", false},
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{"farming_plus:banana", false},
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{"farming_plus:cocoa_leaves", false},
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{"farming_plus:cocoa", false},
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-- Support nature
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{"nature:blossom", false},
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-- Support snow
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{"snow:needles", false},
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{"snow:needles_decorated", false},
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{"snow:star", false},
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-- Support vines (also generated by moretrees if available)
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{"vines:vines", false},
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{"trunks:moss", false},
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{"trunks:moss_fungus", false},
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{"trunks:treeroot", false},
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-- Support ethereal
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{"ethereal:bamboo", true},
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{"ethereal:bamboo_leaves", false},
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{"ethereal:banana_trunk", true},
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{"ethereal:bananaleaves", false},
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{"ethereal:banana", false},
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{"ethereal:birch_trunk", true},
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{"ethereal:birch_leaves", false},
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{"ethereal:frost_tree", true},
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{"ethereal:frost_leaves", false},
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{"ethereal:mushroom_trunk", true},
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{"ethereal:mushroom", false},
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{"ethereal:mushroom_pore", true},
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{"ethereal:orangeleaves", false},
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{"ethereal:orange", false},
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{"ethereal:palm_trunk", true},
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{"ethereal:palmleaves", false},
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{"ethereal:coconut", false},
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{"ethereal:redwood_trunk", true},
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{"ethereal:redwood_leaves", false},
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{"ethereal:sakura_trunk", true},
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{"ethereal:sakura_leaves", false},
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{"ethereal:sakura_leaves2", false},
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{"ethereal:scorched_tree", true},
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{"ethereal:willow_trunk", true},
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{"ethereal:willow_twig", false},
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{"ethereal:yellow_trunk", true},
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{"ethereal:yellowleaves", false},
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{"ethereal:golden_apple", false},
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}
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local timber_nodenames = {}
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for _, node in pairs(nodes) do
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if chainsaw_leaves or node[2] then
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timber_nodenames[node[1]] = true
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end
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end
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-- Maximal dimensions of the tree to cut
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local tree_max_radius = 10
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local tree_max_height = 70
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local S = technic.getter
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--[[
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Format: [node_name] = dig_cost
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This table is filled automatically afterwards to support mods such as:
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cool_trees
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ethereal
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moretrees
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]]
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local tree_nodes = {
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-- For the sake of maintenance, keep this sorted alphabetically!
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["default:acacia_bush_stem"] = -1,
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["default:bush_stem"] = -1,
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["default:pine_bush_stem"] = -1,
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["default:cactus"] = -1,
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["default:papyrus"] = -1,
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["ethereal:bamboo"] = -1,
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}
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-- Function to decide whether or not to cut a certain node (and at which energy cost)
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local function populate_costs(name, def)
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repeat
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if tree_nodes[name] == -1 then
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tree_nodes[name] = nil
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break -- Manually added, but need updating
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end
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if (def.groups.tree or 0) > 0 then
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break -- Tree node
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end
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if (def.groups.leaves or 0) > 0 and chainsaw_leaves then
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break -- Leaves
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end
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if (def.groups.leafdecay_drop or 0) > 0 then
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break -- Food
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end
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return -- Abort function: do not dig this node
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-- luacheck: push ignore 511
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until 1
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-- luacheck: pop
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-- Function did not return! --> add content ID to the digging table
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local content_id = minetest.get_content_id(name)
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-- Get 12 in average
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local cost = 0
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if def.groups.choppy then
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cost = def.groups.choppy * 5 -- trunks (usually 3 * 5)
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elseif def.groups.snappy then
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cost = def.groups.snappy * 2 -- leaves
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end
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tree_nodes[content_id] = math.max(4, cost)
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end
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minetest.register_on_mods_loaded(function()
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local ndefs = minetest.registered_nodes
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-- Populate hardcoded nodes
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for name in pairs(tree_nodes) do
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local ndef = ndefs[name]
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if ndef and ndef.groups then
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populate_costs(name, ndef)
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end
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end
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-- Find all trees and leaves
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for name, def in pairs(ndefs) do
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if def.groups then
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populate_costs(name, def)
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end
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end
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end)
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technic.register_power_tool("technic:chainsaw", chainsaw_max_charge)
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-- This function checks if the specified node should be sawed
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local function check_if_node_sawed(pos)
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local node_name = minetest.get_node(pos).name
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if timber_nodenames[node_name]
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or (chainsaw_leaves and minetest.get_item_group(node_name, "leaves") ~= 0)
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or minetest.get_item_group(node_name, "tree") ~= 0 then
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return true
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local pos9dir = {
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{ 1, 0, 0},
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{-1, 0, 0},
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{ 0, 0, 1},
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{ 0, 0, -1},
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{ 1, 0, 1},
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{-1, 0, -1},
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{ 1, 0, -1},
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{-1, 0, 1},
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{ 0, 1, 0}, -- up
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}
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local cutter = {
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-- See function cut_tree()
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}
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local c_air = minetest.get_content_id("air")
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local function dig_recursive(x, y, z)
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local i = cutter.area:index(x, y, z)
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if cutter.seen[i] then
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return
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end
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cutter.seen[i] = 1 -- Mark as visited
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if cutter.param2[i] ~= 0 then
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-- Do not dig manually placed nodes
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return
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end
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return false
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end
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local c_id = cutter.data[i]
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local cost = tree_nodes[c_id]
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if not cost or cost > cutter.charge then
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return -- Cannot dig this node
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end
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-- Table for saving what was sawed down
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local produced = {}
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-- Count dug nodes
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cutter.drops[c_id] = (cutter.drops[c_id] or 0) + 1
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cutter.seen[i] = 2 -- Mark as dug (for callbacks)
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cutter.data[i] = c_air
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cutter.charge = cutter.charge - cost
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-- Save the items sawed down so that we can drop them in a nice single stack
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local function handle_drops(drops)
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for _, item in ipairs(drops) do
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local stack = ItemStack(item)
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local name = stack:get_name()
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local p = produced[name]
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if not p then
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produced[name] = stack
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else
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p:set_count(p:get_count() + stack:get_count())
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-- Expand maximal bounds for area protection check
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if x < cutter.minp.x then cutter.minp.x = x end
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if y < cutter.minp.y then cutter.minp.y = y end
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if z < cutter.minp.z then cutter.minp.z = z end
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if x > cutter.maxp.x then cutter.maxp.x = x end
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if y > cutter.maxp.y then cutter.maxp.y = y end
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if z > cutter.maxp.z then cutter.maxp.z = z end
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-- Traverse neighbors
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local xn, yn, zn
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for _, offset in ipairs(pos9dir) do
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xn, yn, zn = x + offset[1], y + offset[2], z + offset[3]
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if cutter.area:contains(xn, yn, zn) then
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dig_recursive(xn, yn, zn)
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end
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end
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end
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--- Iterator over positions to try to saw around a sawed node.
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-- This returns positions in a 3x1x3 area around the position, plus the
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-- position above it. This does not return the bottom position to prevent
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-- the chainsaw from cutting down nodes below the cutting position.
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-- @param pos Sawing position.
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local function iterSawTries(pos)
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-- Copy position to prevent mangling it
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local pos = vector.new(pos)
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local i = 0
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local handle_drops
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return function()
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i = i + 1
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-- Given a (top view) area like so (where 5 is the starting position):
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-- X -->
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-- Z 123
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-- | 456
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-- V 789
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-- This will return positions 1, 4, 7, 2, 8 (skip 5), 3, 6, 9,
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-- and the position above 5.
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if i == 1 then
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-- Move to starting position
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pos.x = pos.x - 1
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pos.z = pos.z - 1
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elseif i == 4 or i == 7 then
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-- Move to next X and back to start of Z when we reach
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-- the end of a Z line.
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pos.x = pos.x + 1
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pos.z = pos.z - 2
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elseif i == 5 then
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-- Skip the middle position (we've already run on it)
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-- and double-increment the counter.
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pos.z = pos.z + 2
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i = i + 1
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elseif i <= 9 then
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-- Go to next Z.
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pos.z = pos.z + 1
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elseif i == 10 then
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-- Move back to center and up.
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-- The Y+ position must be last so that we don't dig
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-- straight upward and not come down (since the Y-
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-- position isn't checked).
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pos.x = pos.x - 1
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pos.z = pos.z - 1
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pos.y = pos.y + 1
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else
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return nil
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end
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return pos
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end
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end
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local function chainsaw_dig(player, pos, remaining_charge)
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local minp = {
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x = pos.x - (tree_max_radius + 1),
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y = pos.y,
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z = pos.z - (tree_max_radius + 1)
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}
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local maxp = {
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x = pos.x + (tree_max_radius + 1),
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||||
y = pos.y + tree_max_height,
|
||||
z = pos.z + (tree_max_radius + 1)
|
||||
}
|
||||
|
||||
-- This function does all the hard work. Recursively we dig the node at hand
|
||||
-- if it is in the table and then search the surroundings for more stuff to dig.
|
||||
local function recursive_dig(pos, remaining_charge)
|
||||
if remaining_charge < chainsaw_charge_per_node then
|
||||
return remaining_charge
|
||||
end
|
||||
local node = minetest.get_node(pos)
|
||||
local vm = minetest.get_voxel_manip()
|
||||
local emin, emax = vm:read_from_map(minp, maxp)
|
||||
|
||||
if not check_if_node_sawed(pos) then
|
||||
return remaining_charge
|
||||
cutter = {
|
||||
area = VoxelArea:new{MinEdge=emin, MaxEdge=emax},
|
||||
data = vm:get_data(),
|
||||
param2 = vm:get_param2_data(),
|
||||
seen = {},
|
||||
drops = {}, -- [content_id] = count
|
||||
minp = vector.copy(pos),
|
||||
maxp = vector.copy(pos),
|
||||
charge = remaining_charge
|
||||
}
|
||||
|
||||
dig_recursive(pos.x, pos.y, pos.z)
|
||||
|
||||
-- Check protection
|
||||
local player_name = player:get_player_name()
|
||||
if minetest.is_area_protected(cutter.minp, cutter.maxp, player_name, 6) then
|
||||
minetest.chat_send_player(player_name, "The chainsaw cannot cut this tree. The cuboid " ..
|
||||
minetest.pos_to_string(cutter.minp) .. ", " .. minetest.pos_to_string(cutter.maxp) ..
|
||||
" contains protected nodes.")
|
||||
minetest.record_protection_violation(pos, player_name)
|
||||
return
|
||||
end
|
||||
|
||||
-- Wood found - cut it
|
||||
handle_drops(minetest.get_node_drops(node.name, ""))
|
||||
minetest.remove_node(pos)
|
||||
remaining_charge = remaining_charge - chainsaw_charge_per_node
|
||||
minetest.sound_play("chainsaw", {
|
||||
pos = pos,
|
||||
gain = 1.0,
|
||||
max_hear_distance = 20
|
||||
})
|
||||
|
||||
-- Check surroundings and run recursively if any charge left
|
||||
for npos in iterSawTries(pos) do
|
||||
if remaining_charge < chainsaw_charge_per_node then
|
||||
break
|
||||
end
|
||||
if check_if_node_sawed(npos) then
|
||||
remaining_charge = recursive_dig(npos, remaining_charge)
|
||||
else
|
||||
minetest.check_for_falling(npos)
|
||||
handle_drops(pos)
|
||||
|
||||
vm:set_data(cutter.data)
|
||||
vm:write_to_map(true)
|
||||
vm:update_map()
|
||||
|
||||
-- Update falling nodes
|
||||
for i, status in pairs(cutter.seen) do
|
||||
if status == 2 then -- actually dug
|
||||
minetest.check_for_falling(cutter.area:position(i))
|
||||
end
|
||||
end
|
||||
return remaining_charge
|
||||
end
|
||||
|
||||
-- Function to randomize positions for new node drops
|
||||
@ -369,30 +243,50 @@ local function get_drop_pos(pos)
|
||||
return pos
|
||||
end
|
||||
|
||||
-- Chainsaw entry point
|
||||
local function chainsaw_dig(pos, current_charge)
|
||||
-- Start sawing things down
|
||||
local remaining_charge = recursive_dig(pos, current_charge)
|
||||
minetest.sound_play("chainsaw", {pos = pos, gain = 1.0,
|
||||
max_hear_distance = 10})
|
||||
local drop_inv = minetest.create_detached_inventory("technic:chainsaw_drops", {}, ":technic")
|
||||
handle_drops = function(pos)
|
||||
local n_slots = 100
|
||||
drop_inv:set_size("main", n_slots)
|
||||
drop_inv:set_list("main", {})
|
||||
|
||||
-- Now drop items for the player
|
||||
for name, stack in pairs(produced) do
|
||||
-- Drop stacks of stack max or less
|
||||
local count, max = stack:get_count(), stack:get_stack_max()
|
||||
stack:set_count(max)
|
||||
while count > max do
|
||||
minetest.add_item(get_drop_pos(pos), stack)
|
||||
count = count - max
|
||||
-- Put all dropped items into the detached inventory
|
||||
for c_id, count in pairs(cutter.drops) do
|
||||
local name = minetest.get_name_from_content_id(c_id)
|
||||
|
||||
-- Add drops in bulk -> keep some randomness
|
||||
while count > 0 do
|
||||
local drops = minetest.get_node_drops(name, "")
|
||||
-- higher numbers are faster but return uneven sapling counts
|
||||
local decrement = math.ceil(count * 0.3)
|
||||
decrement = math.min(count, math.max(5, decrement))
|
||||
|
||||
for _, stack in ipairs(drops) do
|
||||
stack = ItemStack(stack)
|
||||
local total = math.ceil(stack:get_count() * decrement * chainsaw_efficiency)
|
||||
local stack_max = stack:get_stack_max()
|
||||
|
||||
-- Split into full stacks
|
||||
while total > 0 do
|
||||
local size = math.min(total, stack_max)
|
||||
stack:set_count(size)
|
||||
drop_inv:add_item("main", stack)
|
||||
total = total - size
|
||||
end
|
||||
end
|
||||
count = count - decrement
|
||||
end
|
||||
end
|
||||
|
||||
-- Drop in random places
|
||||
for i = 1, n_slots do
|
||||
local stack = drop_inv:get_stack("main", i)
|
||||
if stack:is_empty() then
|
||||
break
|
||||
end
|
||||
stack:set_count(count)
|
||||
minetest.add_item(get_drop_pos(pos), stack)
|
||||
end
|
||||
|
||||
-- Clean up
|
||||
produced = {}
|
||||
|
||||
return remaining_charge
|
||||
drop_inv:set_size("main", 0) -- free RAM
|
||||
end
|
||||
|
||||
|
||||
@ -408,8 +302,7 @@ minetest.register_tool("technic:chainsaw", {
|
||||
end
|
||||
|
||||
local meta = minetest.deserialize(itemstack:get_metadata())
|
||||
if not meta or not meta.charge or
|
||||
meta.charge < chainsaw_charge_per_node then
|
||||
if not meta or not meta.charge then
|
||||
return
|
||||
end
|
||||
|
||||
@ -421,7 +314,11 @@ minetest.register_tool("technic:chainsaw", {
|
||||
|
||||
-- Send current charge to digging function so that the
|
||||
-- chainsaw will stop after digging a number of nodes
|
||||
meta.charge = chainsaw_dig(pointed_thing.under, meta.charge)
|
||||
chainsaw_dig(user, pointed_thing.under, meta.charge)
|
||||
meta.charge = cutter.charge
|
||||
|
||||
cutter = {} -- Free RAM
|
||||
|
||||
if not technic.creative_mode then
|
||||
technic.set_RE_wear(itemstack, meta.charge, chainsaw_max_charge)
|
||||
itemstack:set_metadata(minetest.serialize(meta))
|
||||
|
||||
Loading…
Reference in New Issue
Block a user