121 lines
3.2 KiB
Lua
121 lines
3.2 KiB
Lua
|
|
-- playername => key
|
|
local active_preview = {}
|
|
|
|
local function add_preview_entity(texture, key, visual_size, pos, rotation)
|
|
local ent = building_lib.add_entity(pos, key)
|
|
ent:set_properties({
|
|
visual_size = visual_size,
|
|
textures = {texture}
|
|
})
|
|
ent:set_rotation(rotation)
|
|
end
|
|
|
|
function building_lib.show_preview(playername, texture, color, building_def, mapblock_pos1, mapblock_pos2, rotation)
|
|
texture = texture .. "^[colorize:" .. color
|
|
|
|
mapblock_pos2 = mapblock_pos2 or mapblock_pos1
|
|
local key =
|
|
minetest.pos_to_string(mapblock_pos1) .. "/" ..
|
|
minetest.pos_to_string(mapblock_pos2) .. "/" ..
|
|
texture .. "/" ..
|
|
rotation
|
|
|
|
if active_preview[playername] == key then
|
|
-- already active on the same region
|
|
return
|
|
end
|
|
-- clear previous entities
|
|
building_lib.clear_preview(playername)
|
|
active_preview[playername] = key
|
|
|
|
local min, _ = mapblock_lib.get_mapblock_bounds_from_mapblock(mapblock_pos1)
|
|
|
|
local size_mapblocks = vector.subtract(vector.add(mapblock_pos2, 1), mapblock_pos1) -- 1 .. n
|
|
local size = vector.multiply(size_mapblocks, 16) -- 16 .. n
|
|
local half_size = vector.divide(size, 2) -- 8 .. n
|
|
|
|
-- z-
|
|
add_preview_entity(texture, key,
|
|
{x=size.x, y=size.y},
|
|
vector.add(min, {x=half_size.x-0.5, y=half_size.y-0.5, z=-0.5}),
|
|
{x=0, y=0, z=0}
|
|
)
|
|
|
|
-- z+
|
|
add_preview_entity(texture, key,
|
|
{x=size.x, y=size.y},
|
|
vector.add(min, {x=half_size.x-0.5, y=half_size.y-0.5, z=size.z-0.5}),
|
|
{x=0, y=0, z=0}
|
|
)
|
|
|
|
-- x-
|
|
add_preview_entity(texture, key,
|
|
{x=size.z, y=size.y},
|
|
vector.add(min, {x=-0.5, y=half_size.y-0.5, z=half_size.z-0.5}),
|
|
{x=0, y=math.pi/2, z=0}
|
|
)
|
|
|
|
-- x+
|
|
add_preview_entity(texture, key,
|
|
{x=size.z, y=size.y},
|
|
vector.add(min, {x=size.x-0.5, y=half_size.y-0.5, z=half_size.z-0.5}),
|
|
{x=0, y=math.pi/2, z=0}
|
|
)
|
|
|
|
-- y-
|
|
add_preview_entity(texture, key,
|
|
{x=size.x, y=size.z},
|
|
vector.add(min, {x=half_size.x-0.5, y=-0.5, z=half_size.z-0.5}),
|
|
{x=math.pi/2, y=0, z=0}
|
|
)
|
|
|
|
-- y+
|
|
add_preview_entity(texture, key,
|
|
{x=size.x, y=size.z},
|
|
vector.add(min, {x=half_size.x-0.5, y=size.y-0.5, z=half_size.z-0.5}),
|
|
{x=math.pi/2, y=0, z=0}
|
|
)
|
|
|
|
if building_def and building_def.markers then
|
|
-- add markers
|
|
local texture_modifier = "^[colorize:" .. color
|
|
local unrotated_size = building_lib.get_building_size(building_def, 360 - rotation)
|
|
|
|
for _, marker in ipairs(building_def.markers) do
|
|
local rotated_position = mapblock_lib.rotate_pos(marker.position, unrotated_size, rotation)
|
|
local node_pos = vector.multiply(vector.add(mapblock_pos1, rotated_position), 16)
|
|
node_pos = vector.subtract(node_pos, 0.5)
|
|
local z_rotation = marker.rotation.z
|
|
|
|
if rotation == 90 then
|
|
z_rotation = z_rotation - math.pi/2
|
|
elseif rotation == 180 then
|
|
z_rotation = z_rotation + math.pi
|
|
elseif rotation == 270 then
|
|
z_rotation = z_rotation + math.pi/2
|
|
end
|
|
|
|
add_preview_entity(
|
|
marker.texture .. texture_modifier,
|
|
key, marker.size,
|
|
node_pos, {
|
|
x=marker.rotation.x,
|
|
y=marker.rotation.y,
|
|
z=z_rotation
|
|
}
|
|
)
|
|
end
|
|
end
|
|
end
|
|
|
|
function building_lib.clear_preview(playername)
|
|
if active_preview[playername] then
|
|
building_lib.remove_entities(active_preview[playername])
|
|
active_preview[playername] = nil
|
|
end
|
|
end
|
|
|
|
minetest.register_on_leaveplayer(function(player)
|
|
building_lib.clear_preview(player:get_player_name())
|
|
end) |