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Diffstat (limited to 'technic/tools/chainsaw.lua')
| -rw-r--r-- | technic/tools/chainsaw.lua | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/technic/tools/chainsaw.lua b/technic/tools/chainsaw.lua new file mode 100644 index 0000000..bf4efff --- /dev/null +++ b/technic/tools/chainsaw.lua @@ -0,0 +1,366 @@ +-- Configuration + +local chainsaw_max_charge = 30000 -- Maximum charge of the saw +-- Gives 2500 nodes on a single charge (about 50 complete normal trees) +local chainsaw_charge_per_node = 12 +-- Cut down tree leaves. Leaf decay may cause slowness on large trees +-- if this is disabled. +local chainsaw_leaves = true + +-- The default trees +local timber_nodenames = { + ["default:jungletree"] = true, + ["default:papyrus"] = true, + ["default:cactus"] = true, + ["default:tree"] = true, + ["default:apple"] = true, + ["default:pinetree"] = true, +} + +if chainsaw_leaves then + timber_nodenames["default:leaves"] = true + timber_nodenames["default:jungleleaves"] = true + timber_nodenames["default:pine_needles"] = true +end + +-- technic_worldgen defines rubber trees if moretrees isn't installed +if minetest.get_modpath("technic_worldgen") or + minetest.get_modpath("moretrees") then + timber_nodenames["moretrees:rubber_tree_trunk_empty"] = true + timber_nodenames["moretrees:rubber_tree_trunk"] = true + if chainsaw_leaves then + timber_nodenames["moretrees:rubber_tree_leaves"] = true + end +end + +-- Support moretrees if it is there +if minetest.get_modpath("moretrees") then + timber_nodenames["moretrees:acacia_trunk"] = true + timber_nodenames["moretrees:apple_tree_trunk"] = true + timber_nodenames["moretrees:beech_trunk"] = true + timber_nodenames["moretrees:birch_trunk"] = true + timber_nodenames["moretrees:fir_trunk"] = true + timber_nodenames["moretrees:oak_trunk"] = true + timber_nodenames["moretrees:palm_trunk"] = true + timber_nodenames["moretrees:pine_trunk"] = true + timber_nodenames["moretrees:sequoia_trunk"] = true + timber_nodenames["moretrees:spruce_trunk"] = true + timber_nodenames["moretrees:willow_trunk"] = true + timber_nodenames["moretrees:jungletree_trunk"] = true + + if chainsaw_leaves then + timber_nodenames["moretrees:acacia_leaves"] = true + timber_nodenames["moretrees:apple_tree_leaves"] = true + timber_nodenames["moretrees:oak_leaves"] = true + timber_nodenames["moretrees:fir_leaves"] = true + timber_nodenames["moretrees:fir_leaves_bright"] = true + timber_nodenames["moretrees:sequoia_leaves"] = true + timber_nodenames["moretrees:birch_leaves"] = true + timber_nodenames["moretrees:birch_leaves"] = true + timber_nodenames["moretrees:palm_leaves"] = true + timber_nodenames["moretrees:spruce_leaves"] = true + timber_nodenames["moretrees:spruce_leaves"] = true + timber_nodenames["moretrees:pine_leaves"] = true + timber_nodenames["moretrees:willow_leaves"] = true + timber_nodenames["moretrees:jungletree_leaves_green"] = true + timber_nodenames["moretrees:jungletree_leaves_yellow"] = true + timber_nodenames["moretrees:jungletree_leaves_red"] = true + timber_nodenames["moretrees:acorn"] = true + timber_nodenames["moretrees:coconut"] = true + timber_nodenames["moretrees:spruce_cone"] = true + timber_nodenames["moretrees:pine_cone"] = true + timber_nodenames["moretrees:fir_cone"] = true + timber_nodenames["moretrees:apple_blossoms"] = true + end +end + +-- Support growing_trees +if minetest.get_modpath("growing_trees") then + timber_nodenames["growing_trees:trunk"] = true + timber_nodenames["growing_trees:medium_trunk"] = true + timber_nodenames["growing_trees:big_trunk"] = true + timber_nodenames["growing_trees:trunk_top"] = true + timber_nodenames["growing_trees:trunk_sprout"] = true + timber_nodenames["growing_trees:branch_sprout"] = true + timber_nodenames["growing_trees:branch"] = true + timber_nodenames["growing_trees:branch_xmzm"] = true + timber_nodenames["growing_trees:branch_xpzm"] = true + timber_nodenames["growing_trees:branch_xmzp"] = true + timber_nodenames["growing_trees:branch_xpzp"] = true + timber_nodenames["growing_trees:branch_zz"] = true + timber_nodenames["growing_trees:branch_xx"] = true + + if chainsaw_leaves then + timber_nodenames["growing_trees:leaves"] = true + end +end + +-- Support growing_cactus +if minetest.get_modpath("growing_cactus") then + timber_nodenames["growing_cactus:sprout"] = true + timber_nodenames["growing_cactus:branch_sprout_vertical"] = true + timber_nodenames["growing_cactus:branch_sprout_vertical_fixed"] = true + timber_nodenames["growing_cactus:branch_sprout_xp"] = true + timber_nodenames["growing_cactus:branch_sprout_xm"] = true + timber_nodenames["growing_cactus:branch_sprout_zp"] = true + timber_nodenames["growing_cactus:branch_sprout_zm"] = true + timber_nodenames["growing_cactus:trunk"] = true + timber_nodenames["growing_cactus:branch_trunk"] = true + timber_nodenames["growing_cactus:branch"] = true + timber_nodenames["growing_cactus:branch_xp"] = true + timber_nodenames["growing_cactus:branch_xm"] = true + timber_nodenames["growing_cactus:branch_zp"] = true + timber_nodenames["growing_cactus:branch_zm"] = true + timber_nodenames["growing_cactus:branch_zz"] = true + timber_nodenames["growing_cactus:branch_xx"] = true +end + +-- Support farming_plus +if minetest.get_modpath("farming_plus") then + if chainsaw_leaves then + timber_nodenames["farming_plus:banana_leaves"] = true + timber_nodenames["farming_plus:banana"] = true + timber_nodenames["farming_plus:cocoa_leaves"] = true + timber_nodenames["farming_plus:cocoa"] = true + end +end + +-- Support nature +if minetest.get_modpath("nature") then + if chainsaw_leaves then + timber_nodenames["nature:blossom"] = true + end +end + +-- Support snow +if minetest.get_modpath("snow") then + if chainsaw_leaves then + timber_nodenames["snow:needles"] = true + timber_nodenames["snow:needles_decorated"] = true + timber_nodenames["snow:star"] = true + end +end + +-- Support vines (also generated by moretrees if available) +if minetest.get_modpath("vines") then + if chainsaw_leaves then + timber_nodenames["vines:vines"] = true + end +end + +if minetest.get_modpath("trunks") then + if chainsaw_leaves then + timber_nodenames["trunks:moss"] = true + timber_nodenames["trunks:moss_fungus"] = true + timber_nodenames["trunks:treeroot"] = true + end +end + +local S = technic.getter + +technic.register_power_tool("technic:chainsaw", chainsaw_max_charge) + +-- Table for saving what was sawed down +local produced = {} + +-- Save the items sawed down so that we can drop them in a nice single stack +local function handle_drops(drops) + for _, item in ipairs(drops) do + local stack = ItemStack(item) + local name = stack:get_name() + local p = produced[name] + if not p then + produced[name] = stack + else + p:set_count(p:get_count() + stack:get_count()) + end + end +end + +--- Iterator over positions to try to saw around a sawed node. +-- This returns positions in a 3x1x3 area around the position, plus the +-- position above it. This does not return the bottom position to prevent +-- the chainsaw from cutting down nodes below the cutting position. +-- @param pos Sawing position. +local function iterSawTries(pos) + -- Copy position to prevent mangling it + local pos = vector.new(pos) + local i = 0 + + return function() + i = i + 1 + -- Given a (top view) area like so (where 5 is the starting position): + -- X --> + -- Z 123 + -- | 456 + -- V 789 + -- This will return positions 1, 4, 7, 2, 8 (skip 5), 3, 6, 9, + -- and the position above 5. + if i == 1 then + -- Move to starting position + pos.x = pos.x - 1 + pos.z = pos.z - 1 + elseif i == 4 or i == 7 then + -- Move to next X and back to start of Z when we reach + -- the end of a Z line. + pos.x = pos.x + 1 + pos.z = pos.z - 2 + elseif i == 5 then + -- Skip the middle position (we've already run on it) + -- and double-increment the counter. + pos.z = pos.z + 2 + i = i + 1 + elseif i <= 9 then + -- Go to next Z. + pos.z = pos.z + 1 + elseif i == 10 then + -- Move back to center and up. + -- The Y+ position must be last so that we don't dig + -- straight upward and not come down (since the Y- + -- position isn't checked). + pos.x = pos.x - 1 + pos.z = pos.z - 1 + pos.y = pos.y + 1 + else + return nil + end + return pos + end +end + +-- 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) + + if not timber_nodenames[node.name] then + return remaining_charge + 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 + + -- 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 timber_nodenames[minetest.get_node(npos).name] then + remaining_charge = recursive_dig(npos, remaining_charge) + end + end + return remaining_charge +end + +-- Function to randomize positions for new node drops +local function get_drop_pos(pos) + local drop_pos = {} + + for i = 0, 8 do + -- Randomize position for a new drop + drop_pos.x = pos.x + math.random(-3, 3) + drop_pos.y = pos.y - 1 + drop_pos.z = pos.z + math.random(-3, 3) + + -- Move the randomized position upwards until + -- the node is air or unloaded. + for y = drop_pos.y, drop_pos.y + 5 do + drop_pos.y = y + local node = minetest.get_node_or_nil(drop_pos) + + if not node then + -- If the node is not loaded yet simply drop + -- the item at the original digging position. + return pos + elseif node.name == "air" then + -- Add variation to the entity drop position, + -- but don't let drops get too close to the edge + drop_pos.x = drop_pos.x + (math.random() * 0.8) - 0.5 + drop_pos.z = drop_pos.z + (math.random() * 0.8) - 0.5 + return drop_pos + end + end + end + + -- Return the original position if this takes too long + 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}) + + -- 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 + end + stack:set_count(count) + minetest.add_item(get_drop_pos(pos), stack) + end + + -- Clean up + produced = {} + + return remaining_charge +end + + +minetest.register_tool("technic:chainsaw", { + description = S("Chainsaw"), + inventory_image = "technic_chainsaw.png", + stack_max = 1, + wear_represents = "technic_RE_charge", + on_refill = technic.refill_RE_charge, + on_use = function(itemstack, user, pointed_thing) + if pointed_thing.type ~= "node" then + return itemstack + end + + local meta = minetest.deserialize(itemstack:get_metadata()) + if not meta or not meta.charge or + meta.charge < chainsaw_charge_per_node then + return + end + + local name = user:get_player_name() + if minetest.is_protected(pointed_thing.under, name) then + minetest.record_protection_violation(pointed_thing.under, name) + return + end + + -- 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) + if not technic.creative_mode then + technic.set_RE_wear(itemstack, meta.charge, chainsaw_max_charge) + itemstack:set_metadata(minetest.serialize(meta)) + end + return itemstack + end, +}) + +local mesecons_button = minetest.get_modpath("mesecons_button") +local trigger = mesecons_button and "mesecons_button:button_off" or "default:mese_crystal_fragment" + +minetest.register_craft({ + output = "technic:chainsaw", + recipe = { + {"technic:stainless_steel_ingot", trigger, "technic:battery"}, + {"technic:fine_copper_wire", "technic:motor", "technic:battery"}, + {"", "", "technic:stainless_steel_ingot"}, + } +}) + |