homedecor_modpack/homedecor/handlers/expansion.lua

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2015-01-23 16:57:43 +01:00
local S = homedecor.gettext
-- vectors to place one node next to or behind another
homedecor.fdir_to_right = {
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
{ 0, 1 },
}
homedecor.fdir_to_left = {
{ -1, 0 },
{ 0, 1 },
{ 1, 0 },
{ 0, -1 },
}
homedecor.fdir_to_fwd = {
{ 0, 1 },
{ 1, 0 },
{ 0, -1 },
{ -1, 0 },
}
local placeholder_node = "homedecor:expansion_placeholder"
minetest.register_node(placeholder_node, {
description = "Expansion placeholder (you hacker you!)",
groups = { not_in_creative_inventory=1 },
drawtype = "airlike",
paramtype = "light",
walkable = false,
selection_box = { type = "fixed", fixed = { 0, 0, 0, 0, 0, 0 } },
is_ground_content = false,
sunlight_propagates = true,
buildable_to = false,
})
-- selects which node was pointed at based on it being known, and either clickable or buildable_to
local function select_node(pointed_thing)
local pos = pointed_thing.under
local def = minetest.registered_nodes[minetest.get_node(pos).name]
if not def or (not def.on_rightclick and not def.buildable_to) then
pos = pointed_thing.above
def = minetest.registered_nodes[minetest.get_node(pos).name]
end
return pos, def
end
-- abstract function checking if 2 given nodes can and may be build to a place
local function is_buildable_to(placer_name, pos, def, pos2)
local def = def or minetest.registered_nodes[minetest.get_node(pos).name]
local def2 = minetest.registered_nodes[minetest.get_node(pos2).name]
return def and def.buildable_to and def2 and def2.buildable_to
and not minetest.is_protected(pos, placer_name)
and not minetest.is_protected(pos2, placer_name)
end
-- place one or two nodes if and only if both can be placed
local function stack(itemstack, placer, fdir, pos, def, pos2, node1, node2)
local placer_name = placer:get_player_name() or ""
if is_buildable_to(placer_name, pos, def, pos2) then
local fdir = fdir or minetest.dir_to_facedir(placer:get_look_dir())
minetest.set_node(pos, { name = node1, param2 = fdir })
node2 = node2 or "air" -- this can be used to clear buildable_to nodes even though we are using a multinode mesh
-- do not assume by default, as we still might want to allow overlapping in some cases
local has_facedir = node2 ~= "air"
if node2 == "placeholder" then
has_facedir = false
node2 = placeholder_node
end
minetest.set_node(pos2, { name = node2, param2 = (has_facedir and fdir) or nil })
-- call after_place_node of the placed node if available
local ctrl_node_def = minetest.registered_nodes[node1]
if ctrl_node_def and ctrl_node_def.after_place_node then
ctrl_node_def.after_place_node(pos, placer)
end
if not homedecor.expect_infinite_stacks then
itemstack:take_item()
return itemstack
end
end
end
-- Stack one node above another
-- leave the last argument nil if it's one 2m high node
function homedecor.stack_vertically(itemstack, placer, pointed_thing, node1, node2)
local pos, def = select_node(pointed_thing)
if not def then return end -- rare corner case, but happened in #205
if def.on_rightclick then
return def.on_rightclick(pointed_thing.under, minetest.get_node(pos), placer, itemstack)
end
local top_pos = { x=pos.x, y=pos.y+1, z=pos.z }
return stack(itemstack, placer, nil, pos, def, top_pos, node1, node2)
end
-- Stack one door node above another
-- like homedecor.stack_vertically but tests first if it was placed as a right wing, then uses node1_right and node2_right instead
function homedecor.stack_wing(itemstack, placer, pointed_thing, node1, node2, node1_right, node2_right)
local pos, def = select_node(pointed_thing)
if not def then return end -- rare corner case, but happened in #205
if def.on_rightclick then
return def.on_rightclick(pointed_thing.under, minetest.get_node(pos), placer, itemstack)
end
local forceright = placer:get_player_control()["sneak"]
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local is_right_wing = node1 == minetest.get_node({ x = pos.x + homedecor.fdir_to_left[fdir+1][1], y=pos.y, z = pos.z + homedecor.fdir_to_left[fdir+1][2] }).name
if forceright or is_right_wing then
node1, node2 = node1_right, node2_right
end
local top_pos = { x=pos.x, y=pos.y+1, z=pos.z }
return stack(itemstack, placer, fdir, pos, def, top_pos, node1, node2)
end
function homedecor.stack_sideways(itemstack, placer, pointed_thing, node1, node2, dir)
local pos, def = select_node(pointed_thing)
if not def then return end -- rare corner case, but happened in #205
if def.on_rightclick then
return def.on_rightclick(pointed_thing.under, minetest.get_node(pos), placer, itemstack)
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local fdir_transform = dir and homedecor.fdir_to_right or homedecor.fdir_to_fwd
local pos2 = { x = pos.x + fdir_transform[fdir+1][1], y=pos.y, z = pos.z + fdir_transform[fdir+1][2] }
return stack(itemstack, placer, fdir, pos, def, pos2, node1, node2)
end
function homedecor.bed_expansion(pos, placer, itemstack, pointed_thing, color)
local thisnode = minetest.get_node(pos)
local fdir = thisnode.param2
local fxd = homedecor.fdir_to_fwd[fdir+1][1]
local fzd = homedecor.fdir_to_fwd[fdir+1][2]
local forwardpos = {x=pos.x+fxd, y=pos.y, z=pos.z+fzd}
local forwardnode = minetest.get_node(forwardpos)
local def = minetest.registered_nodes[forwardnode.name]
local placer_name = placer:get_player_name()
if not (def and def.buildable_to) then
minetest.chat_send_player( placer:get_player_name(), "Not enough room - the space for the headboard is occupied!" )
minetest.set_node(pos, {name = "air"})
return true
end
if minetest.is_protected(forwardpos, placer_name) then
minetest.chat_send_player( placer:get_player_name(), "Someone already owns the spot where the headboard goes." )
return true
end
minetest.set_node(forwardpos, {name = "air"})
local lxd = homedecor.fdir_to_left[fdir+1][1]
local lzd = homedecor.fdir_to_left[fdir+1][2]
local leftpos = {x=pos.x+lxd, y=pos.y, z=pos.z+lzd}
local leftnode = minetest.get_node(leftpos)
local rxd = homedecor.fdir_to_right[fdir+1][1]
local rzd = homedecor.fdir_to_right[fdir+1][2]
local rightpos = {x=pos.x+rxd, y=pos.y, z=pos.z+rzd}
local rightnode = minetest.get_node(rightpos)
if leftnode.name == "homedecor:bed_"..color.."_regular" then
local newname = string.gsub(thisnode.name, "_regular", "_kingsize")
minetest.set_node(pos, {name = "air"})
minetest.set_node(leftpos, { name = newname, param2 = fdir})
elseif rightnode.name == "homedecor:bed_"..color.."_regular" then
local newname = string.gsub(thisnode.name, "_regular", "_kingsize")
minetest.set_node(rightpos, {name = "air"})
minetest.set_node(pos, { name = newname, param2 = fdir})
end
local topnode = minetest.get_node({x=pos.x, y=pos.y+1.0, z=pos.z})
local bottomnode = minetest.get_node({x=pos.x, y=pos.y-1.0, z=pos.z})
if string.find(topnode.name, "homedecor:bed_.*_regular$") then
if fdir == topnode.param2 then
local newname = string.gsub(thisnode.name, "_regular", "_extended")
minetest.set_node(pos, { name = newname, param2 = fdir})
end
end
if string.find(bottomnode.name, "homedecor:bed_.*_regular$") then
if fdir == bottomnode.param2 then
local newname = string.gsub(bottomnode.name, "_regular", "_extended")
minetest.set_node({x=pos.x, y=pos.y-1.0, z=pos.z}, { name = newname, param2 = fdir})
end
end
end
function homedecor.unextend_bed(pos, color)
local bottomnode = minetest.get_node({x=pos.x, y=pos.y-1.0, z=pos.z})
local fdir = bottomnode.param2
if string.find(bottomnode.name, "homedecor:bed_.*_extended$") then
local newname = string.gsub(bottomnode.name, "_extended", "_regular")
minetest.set_node({x=pos.x, y=pos.y-1.0, z=pos.z}, { name = newname, param2 = fdir})
end
end
function homedecor.place_banister(itemstack, placer, pointed_thing)
local pos, def = select_node(pointed_thing)
if def.on_rightclick then
return def.on_rightclick(pointed_thing.under, minetest.get_node(pos), placer, itemstack)
end
local fdir = minetest.dir_to_facedir(placer:get_look_dir())
local abovepos = { x=pos.x, y=pos.y+1, z=pos.z }
local abovenode = minetest.get_node(abovepos)
local adef = minetest.registered_nodes[abovenode.name]
local placer_name = placer:get_player_name()
if not (adef and adef.buildable_to) then
minetest.chat_send_player(placer_name, "Not enough room - the upper space is occupied!" )
return
end
if minetest.is_protected(abovepos, placer_name) then
minetest.chat_send_player(placer_name, "Someone already owns that spot." )
return
end
local lxd = homedecor.fdir_to_left[fdir+1][1]
local lzd = homedecor.fdir_to_left[fdir+1][2]
local rxd = homedecor.fdir_to_right[fdir+1][1]
local rzd = homedecor.fdir_to_right[fdir+1][2]
local fxd = homedecor.fdir_to_fwd[fdir+1][1]
local fzd = homedecor.fdir_to_fwd[fdir+1][2]
local below_pos = { x=pos.x, y=pos.y-1, z=pos.z }
local fwd_pos = { x=pos.x+fxd, y=pos.y, z=pos.z+fzd }
local left_pos = { x=pos.x+lxd, y=pos.y, z=pos.z+lzd }
local right_pos = { x=pos.x+rxd, y=pos.y, z=pos.z+rzd }
local left_fwd_pos = { x=pos.x+lxd+fxd, y=pos.y, z=pos.z+lzd+fzd }
local right_fwd_pos = { x=pos.x+rxd+fxd, y=pos.y, z=pos.z+rzd+fzd }
local right_fwd_above_pos = { x=pos.x+rxd+fxd, y=pos.y+1, z=pos.z+rzd+fzd }
local left_fwd_above_pos = { x=pos.x+lxd+fxd, y=pos.y+1, z=pos.z+lzd+fzd }
local right_fwd_below_pos = { x=pos.x+rxd+fxd, y=pos.y-1, z=pos.z+rzd+fzd }
local left_fwd_below_pos = { x=pos.x+lxd+fxd, y=pos.y-1, z=pos.z+lzd+fzd }
local below_node = minetest.get_node(below_pos)
local fwd_node = minetest.get_node(fwd_pos)
local left_node = minetest.get_node(left_pos)
local right_node = minetest.get_node(right_pos)
local left_fwd_node = minetest.get_node(left_fwd_pos)
local right_fwd_node = minetest.get_node(right_fwd_pos)
local left_below_node = minetest.get_node({x=left_pos.x, y=left_pos.y-1, z=left_pos.z})
local right_below_node = minetest.get_node({x=right_pos.x, y=right_pos.y-1, z=right_pos.z})
local right_fwd_above_node = minetest.get_node(right_fwd_above_pos)
local left_fwd_above_node = minetest.get_node(left_fwd_above_pos)
local right_fwd_below_node = minetest.get_node(right_fwd_below_pos)
local left_fwd_below_node = minetest.get_node(left_fwd_below_pos)
local new_place_name = itemstack:get_name()
local n = 0
-- try to place a diagonal one on the side of blocks stacked like stairs
-- or follow an existing diagonal with another.
if (left_below_node and string.find(left_below_node.name, "banister_.-_diagonal_right")
and below_node and is_buildable_to(placer_name, below_pos, nil, below_pos))
or not is_buildable_to(placer_name, right_fwd_above_pos, nil, right_fwd_above_pos) then
new_place_name = string.gsub(new_place_name, "_horizontal", "_diagonal_right")
elseif (right_below_node and string.find(right_below_node.name, "banister_.-_diagonal_left")
and below_node and is_buildable_to(placer_name, below_pos, nil, below_pos))
or not is_buildable_to(placer_name, left_fwd_above_pos, nil, left_fwd_above_pos) then
new_place_name = string.gsub(new_place_name, "_horizontal", "_diagonal_left")
-- try to follow a diagonal with the corresponding horizontal
-- from the top of a diagonal...
elseif left_below_node and string.find(left_below_node.name, "homedecor:banister_.*_diagonal") then
fdir = left_below_node.param2
new_place_name = string.gsub(left_below_node.name, "_diagonal_.-$", "_horizontal")
elseif right_below_node and string.find(right_below_node.name, "homedecor:banister_.*_diagonal") then
fdir = right_below_node.param2
new_place_name = string.gsub(right_below_node.name, "_diagonal_.-$", "_horizontal")
-- try to place a horizontal in-line with the nearest diagonal, at the top
elseif left_fwd_below_node and string.find(left_fwd_below_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then
fdir = left_fwd_below_node.param2
pos = fwd_pos
new_place_name = string.gsub(left_fwd_below_node.name, "_diagonal_.-$", "_horizontal")
elseif right_fwd_below_node and string.find(right_fwd_below_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then
fdir = right_fwd_below_node.param2
pos = fwd_pos
new_place_name = string.gsub(right_fwd_below_node.name, "_diagonal_.-$", "_horizontal")
-- try to follow a diagonal with a horizontal, at the bottom of the diagonal
elseif left_node and string.find(left_node.name, "homedecor:banister_.*_diagonal") then
fdir = left_node.param2
new_place_name = string.gsub(left_node.name, "_diagonal_.-$", "_horizontal")
elseif right_node and string.find(right_node.name, "homedecor:banister_.*_diagonal") then
fdir = right_node.param2
new_place_name = string.gsub(right_node.name, "_diagonal_.-$", "_horizontal")
-- try to place a horizontal in-line with the nearest diagonal, at the bottom
elseif left_fwd_node and string.find(left_fwd_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then
fdir = left_fwd_node.param2
pos = fwd_pos
new_place_name = string.gsub(left_fwd_node.name, "_diagonal_.-$", "_horizontal")
elseif right_fwd_node and string.find(right_fwd_node.name, "homedecor:banister_.*_diagonal")
and is_buildable_to(placer_name, fwd_pos, nil, fwd_pos) then
fdir = right_fwd_node.param2
pos = fwd_pos
new_place_name = string.gsub(right_fwd_node.name, "_diagonal_.-$", "_horizontal")
-- try to follow a horizontal with another of the same
elseif left_node and string.find(left_node.name, "homedecor:banister_.*_horizontal") then
fdir = left_node.param2
new_place_name = left_node.name
elseif right_node and string.find(right_node.name, "homedecor:banister_.*_horizontal") then
fdir = right_node.param2
new_place_name = right_node.name
end
-- manually invert left-right orientation
if placer:get_player_control()["sneak"] then
if string.find(new_place_name, "banister_.*_diagonal") then
new_place_name = string.gsub(new_place_name, "_left", "_right")
else
new_place_name = string.gsub(new_place_name, "_right", "_left")
end
end
minetest.set_node(pos, {name = new_place_name, param2 = fdir})
itemstack:take_item()
return itemstack
end