-- Minetest: builtin/item.lua
local builtin_shared = ...
+local SCALE = 0.667
+
+local facedir_to_euler = {
+ {y = 0, x = 0, z = 0},
+ {y = -math.pi/2, x = 0, z = 0},
+ {y = math.pi, x = 0, z = 0},
+ {y = math.pi/2, x = 0, z = 0},
+ {y = math.pi/2, x = -math.pi/2, z = math.pi/2},
+ {y = math.pi/2, x = math.pi, z = math.pi/2},
+ {y = math.pi/2, x = math.pi/2, z = math.pi/2},
+ {y = math.pi/2, x = 0, z = math.pi/2},
+ {y = -math.pi/2, x = math.pi/2, z = math.pi/2},
+ {y = -math.pi/2, x = 0, z = math.pi/2},
+ {y = -math.pi/2, x = -math.pi/2, z = math.pi/2},
+ {y = -math.pi/2, x = math.pi, z = math.pi/2},
+ {y = 0, x = 0, z = math.pi/2},
+ {y = 0, x = -math.pi/2, z = math.pi/2},
+ {y = 0, x = math.pi, z = math.pi/2},
+ {y = 0, x = math.pi/2, z = math.pi/2},
+ {y = math.pi, x = math.pi, z = math.pi/2},
+ {y = math.pi, x = math.pi/2, z = math.pi/2},
+ {y = math.pi, x = 0, z = math.pi/2},
+ {y = math.pi, x = -math.pi/2, z = math.pi/2},
+ {y = math.pi, x = math.pi, z = 0},
+ {y = -math.pi/2, x = math.pi, z = 0},
+ {y = 0, x = math.pi, z = 0},
+ {y = math.pi/2, x = math.pi, z = 0}
+}
+
+local gravity = tonumber(core.settings:get("movement_gravity")) or 9.81
--
-- Falling stuff
core.register_entity(":__builtin:falling_node", {
initial_properties = {
- visual = "wielditem",
- visual_size = {x = 0.667, y = 0.667},
+ visual = "item",
+ visual_size = {x = SCALE, y = SCALE, z = SCALE},
textures = {},
physical = true,
is_visible = false,
- collide_with_objects = false,
+ collide_with_objects = true,
collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
},
node = {},
meta = {},
+ floats = false,
set_node = function(self, node, meta)
+ node.param2 = node.param2 or 0
self.node = node
meta = meta or {}
if type(meta.to_table) == "function" then
end
end
end
+ local def = core.registered_nodes[node.name]
+ if not def then
+ -- Don't allow unknown nodes to fall
+ core.log("info",
+ "Unknown falling node removed at "..
+ core.pos_to_string(self.object:get_pos()))
+ self.object:remove()
+ return
+ end
self.meta = meta
- self.object:set_properties({
- is_visible = true,
- textures = {node.name},
- })
+
+ -- Cache whether we're supposed to float on water
+ self.floats = core.get_item_group(node.name, "float") ~= 0
+
+ -- Set entity visuals
+ if def.drawtype == "torchlike" or def.drawtype == "signlike" then
+ local textures
+ if def.tiles and def.tiles[1] then
+ local tile = def.tiles[1]
+ if def.drawtype == "torchlike" and def.paramtype2 ~= "wallmounted" then
+ tile = def.tiles[2] or def.tiles[1]
+ end
+ if type(tile) == "table" then
+ tile = tile.name
+ end
+ if def.drawtype == "torchlike" then
+ textures = { "("..tile..")^[transformFX", tile }
+ else
+ textures = { tile, "("..tile..")^[transformFX" }
+ end
+ end
+ local vsize
+ if def.visual_scale then
+ local s = def.visual_scale
+ vsize = {x = s, y = s, z = s}
+ end
+ self.object:set_properties({
+ is_visible = true,
+ visual = "upright_sprite",
+ visual_size = vsize,
+ textures = textures,
+ glow = def.light_source,
+ })
+ elseif def.drawtype ~= "airlike" then
+ local itemstring = node.name
+ if core.is_colored_paramtype(def.paramtype2) then
+ itemstring = core.itemstring_with_palette(itemstring, node.param2)
+ end
+ -- FIXME: solution needed for paramtype2 == "leveled"
+ local vsize
+ if def.visual_scale then
+ local s = def.visual_scale * SCALE
+ vsize = {x = s, y = s, z = s}
+ end
+ self.object:set_properties({
+ is_visible = true,
+ wield_item = itemstring,
+ visual_size = vsize,
+ glow = def.light_source,
+ })
+ end
+
+ -- Set collision box (certain nodeboxes only for now)
+ local nb_types = {fixed=true, leveled=true, connected=true}
+ if def.drawtype == "nodebox" and def.node_box and
+ nb_types[def.node_box.type] and def.node_box.fixed then
+ local box = table.copy(def.node_box.fixed)
+ if type(box[1]) == "table" then
+ box = #box == 1 and box[1] or nil -- We can only use a single box
+ end
+ if box then
+ if def.paramtype2 == "leveled" and (self.node.level or 0) > 0 then
+ box[5] = -0.5 + self.node.level / 64
+ end
+ self.object:set_properties({
+ collisionbox = box
+ })
+ end
+ end
+
+ -- Rotate entity
+ if def.drawtype == "torchlike" then
+ if def.paramtype2 == "wallmounted" then
+ self.object:set_yaw(math.pi*0.25)
+ else
+ self.object:set_yaw(-math.pi*0.25)
+ end
+ elseif ((node.param2 ~= 0 or def.drawtype == "nodebox" or def.drawtype == "mesh")
+ and (def.wield_image == "" or def.wield_image == nil))
+ or def.drawtype == "signlike"
+ or def.drawtype == "mesh"
+ or def.drawtype == "normal"
+ or def.drawtype == "nodebox" then
+ if (def.paramtype2 == "facedir" or def.paramtype2 == "colorfacedir") then
+ local fdir = node.param2 % 32
+ -- Get rotation from a precalculated lookup table
+ local euler = facedir_to_euler[fdir + 1]
+ if euler then
+ self.object:set_rotation(euler)
+ end
+ elseif (def.paramtype2 == "wallmounted" or def.paramtype2 == "colorwallmounted") then
+ local rot = node.param2 % 8
+ local pitch, yaw, roll = 0, 0, 0
+ if def.drawtype == "nodebox" or def.drawtype == "mesh" then
+ if rot == 0 then
+ pitch, yaw = math.pi/2, 0
+ elseif rot == 1 then
+ pitch, yaw = -math.pi/2, math.pi
+ elseif rot == 2 then
+ pitch, yaw = 0, math.pi/2
+ elseif rot == 3 then
+ pitch, yaw = 0, -math.pi/2
+ elseif rot == 4 then
+ pitch, yaw = 0, math.pi
+ end
+ else
+ if rot == 1 then
+ pitch, yaw = math.pi, math.pi
+ elseif rot == 2 then
+ pitch, yaw = math.pi/2, math.pi/2
+ elseif rot == 3 then
+ pitch, yaw = math.pi/2, -math.pi/2
+ elseif rot == 4 then
+ pitch, yaw = math.pi/2, math.pi
+ elseif rot == 5 then
+ pitch, yaw = math.pi/2, 0
+ end
+ end
+ if def.drawtype == "signlike" then
+ pitch = pitch - math.pi/2
+ if rot == 0 then
+ yaw = yaw + math.pi/2
+ elseif rot == 1 then
+ yaw = yaw - math.pi/2
+ end
+ elseif def.drawtype == "mesh" or def.drawtype == "normal" or def.drawtype == "nodebox" then
+ if rot >= 0 and rot <= 1 then
+ roll = roll + math.pi
+ else
+ yaw = yaw + math.pi
+ end
+ end
+ self.object:set_rotation({x=pitch, y=yaw, z=roll})
+ end
+ end
end,
get_staticdata = function(self)
on_activate = function(self, staticdata)
self.object:set_armor_groups({immortal = 1})
+ self.object:set_acceleration({x = 0, y = -gravity, z = 0})
local ds = core.deserialize(staticdata)
if ds and ds.node then
end
end,
- on_step = function(self, dtime)
- -- Set gravity
- local acceleration = self.object:get_acceleration()
- if not vector.equals(acceleration, {x = 0, y = -10, z = 0}) then
- self.object:set_acceleration({x = 0, y = -10, z = 0})
+ try_place = function(self, bcp, bcn)
+ local bcd = core.registered_nodes[bcn.name]
+ -- Add levels if dropped on same leveled node
+ if bcd and bcd.paramtype2 == "leveled" and
+ bcn.name == self.node.name then
+ local addlevel = self.node.level
+ if (addlevel or 0) <= 0 then
+ addlevel = bcd.leveled
+ end
+ if core.add_node_level(bcp, addlevel) < addlevel then
+ return true
+ elseif bcd.buildable_to then
+ -- Node level has already reached max, don't place anything
+ return true
+ end
end
- -- Turn to actual node when colliding with ground, or continue to move
- local pos = self.object:get_pos()
- -- Position of bottom center point
- local bcp = {x = pos.x, y = pos.y - 0.7, z = pos.z}
- -- 'bcn' is nil for unloaded nodes
- local bcn = core.get_node_or_nil(bcp)
- -- Delete on contact with ignore at world edges
- if bcn and bcn.name == "ignore" then
- self.object:remove()
- return
+
+ -- Decide if we're replacing the node or placing on top
+ local np = vector.new(bcp)
+ if bcd and bcd.buildable_to and
+ (not self.floats or bcd.liquidtype == "none") then
+ core.remove_node(bcp)
+ else
+ np.y = np.y + 1
end
- local bcd = bcn and core.registered_nodes[bcn.name]
- if bcn and
- (not bcd or bcd.walkable or
- (core.get_item_group(self.node.name, "float") ~= 0 and
- bcd.liquidtype ~= "none")) then
- if bcd and bcd.leveled and
- bcn.name == self.node.name then
- local addlevel = self.node.level
- if not addlevel or addlevel <= 0 then
- addlevel = bcd.leveled
+
+ -- Check what's here
+ local n2 = core.get_node(np)
+ local nd = core.registered_nodes[n2.name]
+ -- If it's not air or liquid, remove node and replace it with
+ -- it's drops
+ if n2.name ~= "air" and (not nd or nd.liquidtype == "none") then
+ if nd and nd.buildable_to == false then
+ nd.on_dig(np, n2, nil)
+ -- If it's still there, it might be protected
+ if core.get_node(np).name == n2.name then
+ return false
end
- if core.add_node_level(bcp, addlevel) == 0 then
+ else
+ core.remove_node(np)
+ end
+ end
+
+ -- Create node
+ local def = core.registered_nodes[self.node.name]
+ if def then
+ core.add_node(np, self.node)
+ if self.meta then
+ core.get_meta(np):from_table(self.meta)
+ end
+ if def.sounds and def.sounds.place then
+ core.sound_play(def.sounds.place, {pos = np}, true)
+ end
+ end
+ core.check_for_falling(np)
+ return true
+ end,
+
+ on_step = function(self, dtime, moveresult)
+ -- Fallback code since collision detection can't tell us
+ -- about liquids (which do not collide)
+ if self.floats then
+ local pos = self.object:get_pos()
+
+ local bcp = vector.round({x = pos.x, y = pos.y - 0.7, z = pos.z})
+ local bcn = core.get_node(bcp)
+
+ local bcd = core.registered_nodes[bcn.name]
+ if bcd and bcd.liquidtype ~= "none" then
+ if self:try_place(bcp, bcn) then
self.object:remove()
return
end
- elseif bcd and bcd.buildable_to and
- (core.get_item_group(self.node.name, "float") == 0 or
- bcd.liquidtype == "none") then
- core.remove_node(bcp)
- return
end
- local np = {x = bcp.x, y = bcp.y + 1, z = bcp.z}
- -- Check what's here
- local n2 = core.get_node(np)
- local nd = core.registered_nodes[n2.name]
- -- If it's not air or liquid, remove node and replace it with
- -- it's drops
- if n2.name ~= "air" and (not nd or nd.liquidtype == "none") then
- core.remove_node(np)
- if nd and nd.buildable_to == false then
- -- Add dropped items
- local drops = core.get_node_drops(n2, "")
- for _, dropped_item in pairs(drops) do
- core.add_item(np, dropped_item)
+ end
+
+ assert(moveresult)
+ if not moveresult.collides then
+ return -- Nothing to do :)
+ end
+
+ local bcp, bcn
+ local player_collision
+ if moveresult.touching_ground then
+ for _, info in ipairs(moveresult.collisions) do
+ if info.type == "object" then
+ if info.axis == "y" and info.object:is_player() then
+ player_collision = info
end
- end
- -- Run script hook
- for _, callback in pairs(core.registered_on_dignodes) do
- callback(np, n2)
+ elseif info.axis == "y" then
+ bcp = info.node_pos
+ bcn = core.get_node(bcp)
+ break
end
end
- -- Create node and remove entity
- local def = core.registered_nodes[self.node.name]
- if def then
- core.add_node(np, self.node)
- if self.meta then
- local meta = core.get_meta(np)
- meta:from_table(self.meta)
- end
- if def.sounds and def.sounds.place then
- core.sound_play(def.sounds.place, {pos = np}, true)
- end
+ end
+
+ if not bcp then
+ -- We're colliding with something, but not the ground. Irrelevant to us.
+ if player_collision then
+ -- Continue falling through players by moving a little into
+ -- their collision box
+ -- TODO: this hack could be avoided in the future if objects
+ -- could choose who to collide with
+ local vel = self.object:get_velocity()
+ self.object:set_velocity({
+ x = vel.x,
+ y = player_collision.old_velocity.y,
+ z = vel.z
+ })
+ self.object:set_pos(vector.add(self.object:get_pos(),
+ {x = 0, y = -0.5, z = 0}))
end
+ return
+ elseif bcn.name == "ignore" then
+ -- Delete on contact with ignore at world edges
self.object:remove()
- core.check_for_falling(np)
return
end
- local vel = self.object:get_velocity()
- if vector.equals(vel, {x = 0, y = 0, z = 0}) then
- local npos = self.object:get_pos()
- self.object:set_pos(vector.round(npos))
+
+ local failure = false
+
+ local pos = self.object:get_pos()
+ local distance = vector.apply(vector.subtract(pos, bcp), math.abs)
+ if distance.x >= 1 or distance.z >= 1 then
+ -- We're colliding with some part of a node that's sticking out
+ -- Since we don't want to visually teleport, drop as item
+ failure = true
+ elseif distance.y >= 2 then
+ -- Doors consist of a hidden top node and a bottom node that is
+ -- the actual door. Despite the top node being solid, the moveresult
+ -- almost always indicates collision with the bottom node.
+ -- Compensate for this by checking the top node
+ bcp.y = bcp.y + 1
+ bcn = core.get_node(bcp)
+ local def = core.registered_nodes[bcn.name]
+ if not (def and def.walkable) then
+ failure = true -- This is unexpected, fail
+ end
+ end
+
+ -- Try to actually place ourselves
+ if not failure then
+ failure = not self:try_place(bcp, bcn)
end
+
+ if failure then
+ local drops = core.get_node_drops(self.node, "")
+ for _, item in pairs(drops) do
+ core.add_item(pos, item)
+ end
+ end
+ self.object:remove()
end
})
if not obj then
return false
end
+ -- remember node level, the entities' set_node() uses this
node.level = core.get_node_level(pos)
local meta = core.get_meta(pos)
local metatable = meta and meta:to_table() or {}
-- Only spawn falling node if node below is loaded
local n_bottom = core.get_node_or_nil(p_bottom)
local d_bottom = n_bottom and core.registered_nodes[n_bottom.name]
- if d_bottom and
-
- (core.get_item_group(n.name, "float") == 0 or
- d_bottom.liquidtype == "none") and
-
- (n.name ~= n_bottom.name or (d_bottom.leveled and
- core.get_node_level(p_bottom) <
- core.get_node_max_level(p_bottom))) and
-
- (not d_bottom.walkable or d_bottom.buildable_to) then
- convert_to_falling_node(p, n)
- return true
+ if d_bottom then
+ local same = n.name == n_bottom.name
+ -- Let leveled nodes fall if it can merge with the bottom node
+ if same and d_bottom.paramtype2 == "leveled" and
+ core.get_node_level(p_bottom) <
+ core.get_node_max_level(p_bottom) then
+ convert_to_falling_node(p, n)
+ return true
+ end
+ -- Otherwise only if the bottom node is considered "fall through"
+ if not same and
+ (not d_bottom.walkable or d_bottom.buildable_to) and
+ (core.get_item_group(n.name, "float") == 0 or
+ d_bottom.liquidtype == "none") then
+ convert_to_falling_node(p, n)
+ return true
+ end
end
end
projects / dragonfireclient.git / blobdiff