]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - builtin/item.lua
Merge pull request #441 from kwolekr/mapgen_factories
[dragonfireclient.git] / builtin / item.lua
index 129a12cf87e034358973caa49a7a6dc30bd991e4..a28798d4d3a21be5f5736dede4d875fd3cd72b81 100644 (file)
@@ -76,10 +76,10 @@ function minetest.get_node_drops(nodename, toolname)
        local drop = ItemStack({name=nodename}):get_definition().drop
        if drop == nil then
                -- default drop
-               return {ItemStack({name=nodename})}
+               return {nodename}
        elseif type(drop) == "string" then
                -- itemstring drop
-               return {ItemStack(drop)}
+               return {drop}
        elseif drop.items == nil then
                -- drop = {} to disable default drop
                return {}
@@ -124,51 +124,98 @@ end
 function minetest.item_place_node(itemstack, placer, pointed_thing)
        local item = itemstack:peek_item()
        local def = itemstack:get_definition()
-       if def.type == "node" and pointed_thing.type == "node" then
-               local pos = pointed_thing.above
-               local oldnode = minetest.env:get_node(pos)
-               local olddef = ItemStack({name=oldnode.name}):get_definition()
-
-               if not olddef.buildable_to then
-                       minetest.log("info", placer:get_player_name() .. " tried to place"
-                               .. " node in invalid position " .. minetest.pos_to_string(pos)
-                               .. ", replacing " .. oldnode.name)
-                       return
-               end
+       if def.type ~= "node" or pointed_thing.type ~= "node" then
+               return itemstack
+       end
+
+       local under = pointed_thing.under
+       local oldnode_under = minetest.env:get_node(under)
+       local olddef_under = ItemStack({name=oldnode_under.name}):get_definition()
+       olddef_under = olddef_under or minetest.nodedef_default
+       local above = pointed_thing.above
+       local oldnode_above = minetest.env:get_node(above)
+       local olddef_above = ItemStack({name=oldnode_above.name}):get_definition()
+       olddef_above = olddef_above or minetest.nodedef_default
+
+       if not olddef_above.buildable_to and not olddef_under.buildable_to then
+               minetest.log("info", placer:get_player_name() .. " tried to place"
+                       .. " node in invalid position " .. minetest.pos_to_string(above)
+                       .. ", replacing " .. oldnode_above.name)
+               return
+       end
+
+       -- Place above pointed node
+       local place_to = {x = above.x, y = above.y, z = above.z}
+
+       -- If node under is buildable_to, place into it instead (eg. snow)
+       if olddef_under.buildable_to then
+               minetest.log("info", "node under is buildable to")
+               place_to = {x = under.x, y = under.y, z = under.z}
+       end
 
-               minetest.log("action", placer:get_player_name() .. " places node "
-                       .. def.name .. " at " .. minetest.pos_to_string(pos))
-
-               local newnode = {name = def.name, param1 = 0, param2 = 0}
-
-               -- Calculate direction for wall mounted stuff like torches and signs
-               if def.paramtype2 == 'wallmounted' then
-                       local under = pointed_thing.under
-                       local above = pointed_thing.above
-                       local dir = {x = under.x - above.x, y = under.y - above.y, z = under.z - above.z}
-                       newnode.param2 = minetest.dir_to_wallmounted(dir)
-               -- Calculate the direction for furnaces and chests and stuff
-               elseif def.paramtype2 == 'facedir' then
-                       local playerpos = placer:getpos()
-                       local dir = {x = pos.x - playerpos.x, y = pos.y - playerpos.y, z = pos.z - playerpos.z}
+       minetest.log("action", placer:get_player_name() .. " places node "
+               .. def.name .. " at " .. minetest.pos_to_string(place_to))
+       
+       local oldnode = minetest.env:get_node(place_to)
+       local newnode = {name = def.name, param1 = 0, param2 = 0}
+
+       -- Calculate direction for wall mounted stuff like torches and signs
+       if def.paramtype2 == 'wallmounted' then
+               local dir = {
+                       x = under.x - above.x,
+                       y = under.y - above.y,
+                       z = under.z - above.z
+               }
+               newnode.param2 = minetest.dir_to_wallmounted(dir)
+       -- Calculate the direction for furnaces and chests and stuff
+       elseif def.paramtype2 == 'facedir' then
+               local placer_pos = placer:getpos()
+               if placer_pos then
+                       local dir = {
+                               x = above.x - placer_pos.x,
+                               y = above.y - placer_pos.y,
+                               z = above.z - placer_pos.z
+                       }
                        newnode.param2 = minetest.dir_to_facedir(dir)
                        minetest.log("action", "facedir: " .. newnode.param2)
                end
+       end
+
+       -- Check if the node is attached and if it can be placed there
+       if minetest.get_item_group(def.name, "attached_node") ~= 0 and
+               not check_attached_node(place_to, newnode) then
+               minetest.log("action", "attached node " .. def.name ..
+                       " can not be placed at " .. minetest.pos_to_string(place_to))
+               return
+       end
+
+       -- Add node and update
+       minetest.env:add_node(place_to, newnode)
 
-               -- Add node and update
-               minetest.env:add_node(pos, newnode)
+       local take_item = true
 
-               -- Set metadata owner
-               if def.metadata_name ~= "" then
-                       minetest.env:get_meta(pos):set_owner(placer:get_player_name())
+       -- Run callback
+       if def.after_place_node then
+               -- Copy place_to because callback can modify it
+               local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
+               if def.after_place_node(place_to_copy, placer, itemstack) then
+                       take_item = false
                end
+       end
 
-               -- Run script hook
-               local _, callback
-               for _, callback in ipairs(minetest.registered_on_placenodes) do
-                       callback(pos, newnode, placer)
+       -- Run script hook
+       local _, callback
+       for _, callback in ipairs(minetest.registered_on_placenodes) do
+               -- Copy pos and node because callback can modify them
+               local place_to_copy = {x=place_to.x, y=place_to.y, z=place_to.z}
+               local newnode_copy = {name=newnode.name, param1=newnode.param1, param2=newnode.param2}
+               local oldnode_copy = {name=oldnode.name, param1=oldnode.param1, param2=oldnode.param2}
+               if callback(place_to_copy, newnode_copy, placer, oldnode_copy, itemstack) then
+                       take_item = false
                end
+       end
 
+       if take_item then
                itemstack:take_item()
        end
        return itemstack
@@ -184,9 +231,20 @@ function minetest.item_place_object(itemstack, placer, pointed_thing)
 end
 
 function minetest.item_place(itemstack, placer, pointed_thing)
+       -- Call on_rightclick if the pointed node defines it
+       if pointed_thing.type == "node" and placer and
+                       not placer:get_player_control().sneak then
+               local n = minetest.env:get_node(pointed_thing.under)
+               local nn = n.name
+               if minetest.registered_nodes[nn] and minetest.registered_nodes[nn].on_rightclick then
+                       minetest.registered_nodes[nn].on_rightclick(pointed_thing.under, n, placer)
+                       return
+               end
+       end
+
        if itemstack:get_definition().type == "node" then
                return minetest.item_place_node(itemstack, placer, pointed_thing)
-       else
+       elseif itemstack:get_definition().type ~= "none" then
                return minetest.item_place_object(itemstack, placer, pointed_thing)
        end
 end
@@ -196,10 +254,12 @@ function minetest.item_drop(itemstack, dropper, pos)
                local v = dropper:get_look_dir()
                local p = {x=pos.x+v.x, y=pos.y+1.5+v.y, z=pos.z+v.z}
                local obj = minetest.env:add_item(p, itemstack)
-               v.x = v.x*2
-               v.y = v.y*2 + 1
-               v.z = v.z*2
-               obj:setvelocity(v)
+               if obj then
+                       v.x = v.x*2
+                       v.y = v.y*2 + 1
+                       v.z = v.z*2
+                       obj:setvelocity(v)
+               end
        else
                minetest.env:add_item(pos, itemstack)
        end
@@ -220,16 +280,29 @@ function minetest.node_punch(pos, node, puncher)
        -- Run script hook
        local _, callback
        for _, callback in ipairs(minetest.registered_on_punchnodes) do
-               callback(pos, node, puncher)
+               -- Copy pos and node because callback can modify them
+               local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
+               local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
+               callback(pos_copy, node_copy, puncher)
        end
+end
 
+function minetest.handle_node_drops(pos, drops, digger)
+       -- Add dropped items to object's inventory
+       if digger:get_inventory() then
+               local _, dropped_item
+               for _, dropped_item in ipairs(drops) do
+                       digger:get_inventory():add_item("main", dropped_item)
+               end
+       end
 end
 
 function minetest.node_dig(pos, node, digger)
        minetest.debug("node_dig")
 
        local def = ItemStack({name=node.name}):get_definition()
-       if not def.diggable then
+       -- Check if def ~= 0 because we always want to be able to remove unknown nodes
+       if #def ~= 0 and not def.diggable or (def.can_dig and not def.can_dig(pos,digger)) then
                minetest.debug("not diggable")
                minetest.log("info", digger:get_player_name() .. " tried to dig "
                        .. node.name .. " which is not diggable "
@@ -240,34 +313,47 @@ function minetest.node_dig(pos, node, digger)
        minetest.log('action', digger:get_player_name() .. " digs "
                .. node.name .. " at " .. minetest.pos_to_string(pos))
 
-       if not minetest.setting_getbool("creative_mode") then
-               local wielded = digger:get_wielded_item()
-               local drops = minetest.get_node_drops(node.name, wielded:get_name())
-
-               -- Wear out tool
-               tp = wielded:get_tool_capabilities()
-               dp = minetest.get_dig_params(def.groups, tp)
-               wielded:add_wear(dp.wear)
-               digger:set_wielded_item(wielded)
-
-               -- Add dropped items
-               local _, dropped_item
-               for _, dropped_item in ipairs(drops) do
-                       digger:get_inventory():add_item("main", dropped_item)
-               end
+       local wielded = digger:get_wielded_item()
+       local drops = minetest.get_node_drops(node.name, wielded:get_name())
+
+       -- Wear out tool
+       local tp = wielded:get_tool_capabilities()
+       local dp = minetest.get_dig_params(def.groups, tp)
+       wielded:add_wear(dp.wear)
+       digger:set_wielded_item(wielded)
+       
+       -- Handle drops
+       minetest.handle_node_drops(pos, drops, digger)
+
+       local oldmetadata = nil
+       if def.after_dig_node then
+               oldmetadata = minetest.env:get_meta(pos):to_table()
        end
 
        -- Remove node and update
        minetest.env:remove_node(pos)
+       
+       -- Run callback
+       if def.after_dig_node then
+               -- Copy pos and node because callback can modify them
+               local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
+               local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
+               def.after_dig_node(pos_copy, node_copy, oldmetadata, digger)
+       end
 
        -- Run script hook
        local _, callback
        for _, callback in ipairs(minetest.registered_on_dignodes) do
-               callback(pos, node, digger)
+               -- Copy pos and node because callback can modify them
+               local pos_copy = {x=pos.x, y=pos.y, z=pos.z}
+               local node_copy = {name=node.name, param1=node.param1, param2=node.param2}
+               callback(pos_copy, node_copy, digger)
        end
 end
 
 -- This is used to allow mods to redefine minetest.item_place and so on
+-- NOTE: This is not the preferred way. Preferred way is to provide enough
+--       callbacks to not require redefining global functions. -celeron55
 local function redef_wrapper(table, name)
        return function(...)
                return table[name](...)
@@ -291,23 +377,34 @@ minetest.nodedef_default = {
        usable = false,
        liquids_pointable = false,
        tool_capabilities = nil,
+       node_placement_prediction = nil,
 
        -- Interaction callbacks
        on_place = redef_wrapper(minetest, 'item_place'), -- minetest.item_place
        on_drop = redef_wrapper(minetest, 'item_drop'), -- minetest.item_drop
        on_use = nil,
+       can_dig = nil,
 
        on_punch = redef_wrapper(minetest, 'node_punch'), -- minetest.node_punch
+       on_rightclick = nil,
        on_dig = redef_wrapper(minetest, 'node_dig'), -- minetest.node_dig
 
+       on_receive_fields = nil,
+       
+       on_metadata_inventory_move = minetest.node_metadata_inventory_move_allow_all,
+       on_metadata_inventory_offer = minetest.node_metadata_inventory_offer_allow_all,
+       on_metadata_inventory_take = minetest.node_metadata_inventory_take_allow_all,
+
        -- Node properties
        drawtype = "normal",
        visual_scale = 1.0,
-       tile_images = {""},
-       special_materials = {
-               {image="", backface_culling=true},
-               {image="", backface_culling=true},
-       },
+       -- Don't define these because otherwise the old tile_images and
+       -- special_materials wouldn't be read
+       --tiles ={""},
+       --special_tiles = {
+       --      {name="", backface_culling=true},
+       --      {name="", backface_culling=true},
+       --},
        alpha = 255,
        post_effect_color = {a=0, r=0, g=0, b=0},
        paramtype = "none",
@@ -319,7 +416,6 @@ minetest.nodedef_default = {
        diggable = true,
        climbable = false,
        buildable_to = false,
-       metadata_name = "",
        liquidtype = "none",
        liquid_alternative_flowing = "",
        liquid_alternative_source = "",
@@ -380,7 +476,7 @@ minetest.noneitemdef_default = {  -- This is used for the hand and unknown items
        tool_capabilities = nil,
 
        -- Interaction callbacks
-       on_place = nil,
+       on_place = redef_wrapper(minetest, 'item_place'),
        on_drop = nil,
        on_use = nil,
 }