171 lines
6.2 KiB
Lua
171 lines
6.2 KiB
Lua
--[[ Mining times. Yeah, mining times … Alright, this is going to be FUN!
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This mod does include a HACK to make 100% sure the digging times of all tools match Minecraft's perfectly.
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The digging times system of Minetest is very different, so this weird group trickery has to be used.
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In Minecraft, each block has a hardness and the actual Minecraft digging time is determined by this:
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1) The block's hardness
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2) The tool being used
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3) Whether the tool is considered as “eligible” for the block
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(e.g. only diamond pick eligible for obsidian)
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See Minecraft Wiki <http://minecraft.gamepedia.com/Minecraft_Wiki> for more information.
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In MineClone 2, all diggable node have the hardness set in the custom field “_mcl_hardness” (0 by default).
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The nodes are also required to specify the “eligible” tools in groups like “pickaxey”, “shovely”, etc.
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This mod then calculates the real digging time based on the node meta data. The real digging times
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are then added into mcl_autogroup.digtimes where the table indices are group rating and the values are the
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digging times in seconds. These digging times can be then added verbatim into the tool definitions.
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Example:
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mcl_autogroup.digtimes.pickaxey_dig_diamond[1] = 0.2
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→ This means that when a node has been assigned the group “pickaxey_dig_diamond=1”, it can be dug by the
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diamond pickaxe in 0.2 seconds.
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This strange setup with mcl_autogroup has been done to minimize the amount of required digging times
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a single tool needs to use. If this is not being done, the loading time will increase considerably
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(>10s).
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]]
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local materials = { "wood", "gold", "stone", "iron", "diamond" }
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local basegroups = { "pickaxey", "axey", "shovely" }
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local minigroups = { "handy", "shearsy", "swordy", "shearsy_wool", "swordy_cobweb" }
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local divisors = {
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["wood"] = 2,
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["gold"] = 12,
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["stone"] = 4,
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["iron"] = 6,
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["diamond"] = 8,
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["handy"] = 1,
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["shearsy"] = 15,
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["swordy"] = 1.5,
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["shearsy_wool"] = 5,
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["swordy_cobweb"] = 15,
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}
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local max_efficiency_level = 5
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mcl_autogroup = {}
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mcl_autogroup.digtimes = {}
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mcl_autogroup.creativetimes = {} -- Copy of digtimes, except that all values are 0. Used for creative mode
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for m=1, #materials do
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for g=1, #basegroups do
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mcl_autogroup.digtimes[basegroups[g].."_dig_"..materials[m]] = {}
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mcl_autogroup.creativetimes[basegroups[g].."_dig_"..materials[m]] = {}
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for e=1, max_efficiency_level do
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mcl_autogroup.digtimes[basegroups[g].."_dig_"..materials[m].."_efficiency_"..e] = {}
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mcl_autogroup.creativetimes[basegroups[g].."_dig_"..materials[m].."_efficiency_"..e] = {}
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end
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end
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end
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for g=1, #minigroups do
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mcl_autogroup.digtimes[minigroups[g].."_dig"] = {}
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mcl_autogroup.creativetimes[minigroups[g].."_dig"] = {}
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for e=1, max_efficiency_level do
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mcl_autogroup.digtimes[minigroups[g].."_dig_efficiency_"..e] = {}
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mcl_autogroup.creativetimes[minigroups[g].."_dig_efficiency_"..e] = {}
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end
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end
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local overwrite = function()
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for nname, ndef in pairs(minetest.registered_nodes) do
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local groups_changed = false
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local newgroups = table.copy(ndef.groups)
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if (nname ~= "ignore" and ndef.diggable) then
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-- Automatically assign the “solid” group for solid nodes
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if (ndef.walkable == nil or ndef.walkable == true)
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and (ndef.collision_box == nil or ndef.collision_box.type == "regular")
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and (ndef.node_box == nil or ndef.node_box.type == "regular")
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and (ndef.groups.not_solid == 0 or ndef.groups.not_solid == nil) then
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newgroups.solid = 1
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groups_changed = true
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end
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-- Automatically assign the “opaque” group for opaque nodes
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if (not (ndef.paramtype == "light" or ndef.sunlight_propagates)) and
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(ndef.groups.not_opaque == 0 or ndef.groups.not_opaque == nil) then
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newgroups.opaque = 1
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groups_changed = true
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end
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local function calculate_group(hardness, material, diggroup, newgroups, actual_rating, expected_rating, efficiency)
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local time, validity_factor
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if actual_rating >= expected_rating then
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-- Valid tool
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validity_factor = 1.5
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else
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-- Wrong tool (higher digging time)
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validity_factor = 5
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end
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local speed_multiplier = divisors[material]
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if efficiency then
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speed_multiplier = speed_multiplier + efficiency * efficiency + 1
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end
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time = (hardness * validity_factor) / speed_multiplier
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if time <= 0.05 then
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time = 0
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else
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time = math.ceil(time * 20) / 20
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end
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table.insert(mcl_autogroup.digtimes[diggroup], time)
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table.insert(mcl_autogroup.creativetimes[diggroup], 0)
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newgroups[diggroup] = #mcl_autogroup.digtimes[diggroup]
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return newgroups
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end
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-- Hack in digging times
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local hardness = ndef._mcl_hardness
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if not hardness then
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hardness = 0
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end
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-- Handle pickaxey, axey and shovely
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for _, basegroup in pairs(basegroups) do
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if (hardness ~= -1 and ndef.groups[basegroup]) then
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for g=1,#materials do
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local diggroup = basegroup.."_dig_"..materials[g]
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newgroups = calculate_group(hardness, materials[g], diggroup, newgroups, g, ndef.groups[basegroup])
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for e=1,max_efficiency_level do
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newgroups = calculate_group(hardness, materials[g], diggroup .. "_efficiency_" .. e, newgroups, g, ndef.groups[basegroup], e)
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end
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groups_changed = true
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end
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end
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end
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for m=1, #minigroups do
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local minigroup = minigroups[m]
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if hardness ~= -1 then
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local diggroup = minigroup.."_dig"
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-- actual rating
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local ar = ndef.groups[minigroup]
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if ar == nil then
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ar = 0
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end
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if (minigroup == "handy")
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or
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(ndef.groups.shearsy_wool and minigroup == "shearsy_wool" and ndef.groups.wool)
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or
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(ndef.groups.swordy_cobweb and minigroup == "swordy_cobweb" and nname == "mcl_core:cobweb")
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or
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(ndef.groups[minigroup] and minigroup ~= "swordy_cobweb" and minigroup ~= "shearsy_wool") then
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newgroups = calculate_group(hardness, minigroup, diggroup, newgroups, ar, 1)
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for e=1,max_efficiency_level do
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newgroups = calculate_group(hardness, minigroup, diggroup .. "_efficiency_" .. e, newgroups, ar, 1, e)
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end
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groups_changed = true
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end
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end
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end
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if groups_changed then
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minetest.override_item(nname, {
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groups = newgroups
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})
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end
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end
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end
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end
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overwrite()
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