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| author | Treer <treer.git@gmail.com> | 2021-08-28 04:23:20 +1000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-08-27 20:23:20 +0200 |
| commit | 149d8fc8d6d92e8e0d6908125ad8d3179695b1ea (patch) | |
| tree | d396992227fafc136bf9d05c6cb85e9965293ac5 /builtin | |
| parent | d36dca3aba34e989eec6686660c0490548baad67 (diff) | |
| download | minetest-149d8fc8d6d92e8e0d6908125ad8d3179695b1ea.tar.gz minetest-149d8fc8d6d92e8e0d6908125ad8d3179695b1ea.tar.bz2 minetest-149d8fc8d6d92e8e0d6908125ad8d3179695b1ea.zip | |
Add group-based tool filtering for node drops (#10141)
Supports both AND and OR requirements, e.g.
* "a tool that's in any of these groups"
* "a tool that's in all of these groups"
Diffstat (limited to 'builtin')
| -rw-r--r-- | builtin/game/item.lua | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/builtin/game/item.lua b/builtin/game/item.lua index 99465e099..c495a67bd 100644 --- a/builtin/game/item.lua +++ b/builtin/game/item.lua @@ -175,6 +175,18 @@ function core.strip_param2_color(param2, paramtype2) return param2 end +local function has_all_groups(tbl, required_groups) + if type(required_groups) == "string" then + return (tbl[required_groups] or 0) ~= 0 + end + for _, group in ipairs(required_groups) do + if (tbl[group] or 0) == 0 then + return false + end + end + return true +end + function core.get_node_drops(node, toolname) -- Compatibility, if node is string local nodename = node @@ -214,7 +226,7 @@ function core.get_node_drops(node, toolname) if item.rarity ~= nil then good_rarity = item.rarity < 1 or math.random(item.rarity) == 1 end - if item.tools ~= nil then + if item.tools ~= nil or item.tool_groups ~= nil then good_tool = false end if item.tools ~= nil and toolname then @@ -229,6 +241,27 @@ function core.get_node_drops(node, toolname) end end end + if item.tool_groups ~= nil and toolname then + local tooldef = core.registered_items[toolname] + if tooldef ~= nil and type(tooldef.groups) == "table" then + if type(item.tool_groups) == "string" then + -- tool_groups can be a string which specifies the required group + good_tool = core.get_item_group(toolname, item.tool_groups) ~= 0 + else + -- tool_groups can be a list of sufficient requirements. + -- i.e. if any item in the list can be satisfied then the tool is good + assert(type(item.tool_groups) == "table") + for _, required_groups in ipairs(item.tool_groups) do + -- required_groups can be either a string (a single group), + -- or an array of strings where all must be in tooldef.groups + good_tool = has_all_groups(tooldef.groups, required_groups) + if good_tool then + break + end + end + end + end + end if good_rarity and good_tool then got_count = got_count + 1 for _, add_item in ipairs(item.items) do |