627 lines
16 KiB
Lua
627 lines
16 KiB
Lua
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--------------------------------------------------------
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-- Minetest :: Generic Flags Mod (flags)
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--
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-- See README.txt for licensing and other information.
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-- Made by AwesomeDragon97, Anonymous with code from Wuzzy.
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--------------------------------------------------------
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flags = {}
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local wind_noise = PerlinNoise( 204, 1, 0, 500 )
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-- Check whether the new `get_2d` Perlin function is available,
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-- otherwise use `get2d`. Needed to suppress deprecation
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-- warning in newer Minetest versions.
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local old_get2d = true
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if wind_noise.get_2d then
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old_get2d = false
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end
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local active_flags = { }
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local pi = math.pi
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local rad_180 = pi
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local rad_90 = pi / 2
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-- This flag is used as the default or fallback in case of error/missing data
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local DEFAULT_FLAG = minetest.settings:get('default_flag') or 'white'
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local flag_list = {}
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if minetest.settings:get_bool('name_flags', true) == true then
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flag_list = { -- generic flags
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"white",
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-- "red",
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-- "green",
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-- "brown",
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-- "blue",
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"black",
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-- "orange",
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-- "yellow",
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-- "purple",
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-- "pink",
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-- "gray",
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-- "cyan",
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-- "magenta",
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"dark_green",
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"dark_gray",
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"pirate",
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"anarcho",
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"makhno",
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"anonymous",
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"guyfox",
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"jollyroger",
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"anarchy" }
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end
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local next_flag, prev_flag
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local update_next_prev_flag_lists = function()
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next_flag = {}
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prev_flag = {}
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for f=1, #flag_list do
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local name1 = flag_list[f]
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local name0, name2
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if f < #flag_list then
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name2 = flag_list[f+1]
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else
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name2 = flag_list[1]
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end
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if f == 1 then
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name0 = flag_list[#flag_list]
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else
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name0 = flag_list[f-1]
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end
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next_flag[name1] = name2
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prev_flag[name1] = name0
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end
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end
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update_next_prev_flag_lists()
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local flag_exists = function(flag_name)
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return next_flag[ flag_name] ~= nil
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end
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local get_next_flag = function(current_flag_name)
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if not current_flag_name or not flag_exists( current_flag_name ) then
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return DEFAULT_FLAG
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else
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return next_flag[current_flag_name]
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end
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end
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local get_prev_flag = function(current_flag_name)
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if not current_flag_name or not flag_exists( current_flag_name ) then
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return DEFAULT_FLAG
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else
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return prev_flag[current_flag_name]
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end
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end
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-- Delete entity if there is no flag mast node
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local delete_if_orphan = function( self )
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local pos = self.object:get_pos( )
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local node = minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z})
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if node.name ~= "pirate_flag:upper_mast" and node.name ~= "ignore" then
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minetest.log("action", "[flags] Orphan flag entity removed at "..minetest.pos_to_string(pos, 1))
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self.object:remove( )
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return true
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end
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return false
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end
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minetest.register_entity( "pirate_flag:wavingflag", {
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initial_properties = {
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physical = false,
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visual = "mesh",
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visual_size = { x = 8.5, y = 8.5 },
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collisionbox = { 0, 0, 0, 0, 0, 0 },
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backface_culling = false,
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pointable = false,
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mesh = "flags_wavingflag.b3d",
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textures = { "flag_" .. DEFAULT_FLAG .. ".png" },
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use_texture_alpha = false,
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},
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on_activate = function ( self, staticdata, dtime )
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if delete_if_orphan( self) then
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return
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end
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-- Init stuff
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self:reset_animation( true )
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self.object:set_armor_groups( { immortal = 1 } )
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if staticdata ~= "" then
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local data = minetest.deserialize( staticdata )
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if data.flag_name then
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self.flag_name = data.flag_name
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else
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self.flag_name = DEFAULT_FLAG
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end
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self.node_idx = data.node_idx
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if not self.flag_name or not self.node_idx then
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self.object:remove( )
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return
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end
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self:reset_texture( self.flag_name )
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active_flags[ self.node_idx ] = self.object
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else
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self.flag_name = DEFAULT_FLAG
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end
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-- Delete entity if there is already one for this pos
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local objs = minetest.get_objects_inside_radius( self.object:get_pos(), 0.5 )
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for o=1, #objs do
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local obj = objs[o]
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local lua = obj:get_luaentity( )
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if lua and self ~= lua and lua.name == "pirate_flag:wavingflag" then
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if lua.node_idx == self.node_idx then
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self.object:remove( )
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return
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end
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end
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end
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end,
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on_deactivate = function ( self )
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if self.sound_id then
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minetest.sound_stop( self.sound_id )
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end
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end,
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on_step = function ( self, dtime )
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self.anim_timer = self.anim_timer - dtime
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if self.anim_timer <= 0 then
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if delete_if_orphan( self) then
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return
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end
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self:reset_animation( )
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end
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end,
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reset_animation = function ( self, initial )
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local pos = self.object:get_pos( )
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local cur_wind = flags.get_wind( pos )
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minetest.log("verbose", "[flags] Current wind at "..minetest.pos_to_string(pos, 1)..": " .. cur_wind)
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local anim_speed
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local wave_sound
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if cur_wind < 10 then
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anim_speed = 10 -- 2 cycle
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wave_sound = "flags_flagwave1"
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elseif cur_wind < 20 then
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anim_speed = 20 -- 4 cycles
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wave_sound = "flags_flagwave1"
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elseif cur_wind < 40 then
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anim_speed = 40 -- 8 cycles
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wave_sound = "flags_flagwave2"
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else
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anim_speed = 80 -- 16 cycles
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wave_sound = "flags_flagwave3"
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end
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-- slightly anim_speed change to desyncronize flag waving
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anim_speed = anim_speed + math.random(0, 200) * 0.01
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if self.object then
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if initial or (not self.object.set_animation_frame_speed) then
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self.object:set_animation( { x = 1, y = 575 }, anim_speed, 0, true )
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else
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self.object:set_animation_frame_speed(anim_speed)
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end
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end
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if not self.sound_id then
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self.sound_id = minetest.sound_play( wave_sound, { object = self.object, gain = 1.0, loop = true } )
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end
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self.anim_timer = 115 + math.random(-10, 10) -- time to reset animation
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end,
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reset_texture = function ( self, flag_name, nextprev )
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if nextprev == 1 then
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self.flag_name = get_next_flag(self.flag_name)
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elseif nextprev == -1 then
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self.flag_name = get_prev_flag(self.flag_name)
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else
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self.flag_name = flag_name
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end
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local texture = string.format( "flag_%s.png", self.flag_name )
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self.object:set_properties( { textures = { texture } } )
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return self.flag_name
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end,
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get_staticdata = function ( self )
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return minetest.serialize( {
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node_idx = self.node_idx,
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flag_name = self.flag_name,
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} )
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end,
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} )
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local metal_sounds
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if minetest.get_modpath("default") ~= nil then
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if default.node_sound_metal_defaults then
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metal_sounds = default.node_sound_metal_defaults()
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end
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end
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minetest.register_node("pirate_flag:lower_mast", {
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description = ("Flag Pole"),
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drawtype = "mesh",
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paramtype = "light",
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mesh = "flags_mast_lower.obj",
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paramtype2 = "facedir",
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tiles = { "flags_baremetal.png", "flags_baremetal.png" },
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wield_image = "flags_pole_bottom_inv.png",
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inventory_image = "flags_pole_bottom_inv.png",
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groups = { cracky = 2 },
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sounds = metal_sounds,
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is_ground_content = false,
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selection_box = {
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type = "fixed",
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fixed = { { -2/16, -1/2, -2/16, 2/16, 1/2, 2/16 } },
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},
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collision_box = {
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type = "fixed",
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fixed = { { -2/16, -1/2, -2/16, 2/16, 1/2, 2/16 } },
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},
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on_rotate = function(pos, node, user, mode, new_param2)
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if mode == screwdriver.ROTATE_AXIS then
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return false
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end
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end,
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} )
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local function get_flag_pos( pos, param2 )
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local facedir_to_pos = {
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[0] = { x = 0, y = 0.5, z = -0.125 },
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[1] = { x = -0.125, y = 0.5, z = 0 },
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[2] = { x = 0, y = 0.5, z = 0.125 },
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[3] = { x = 0.125, y = 0.5, z = 0 },
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}
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return vector.add( pos, vector.multiply( facedir_to_pos[ param2 ], 1 ) )
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end
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local function rotate_flag_by_param2( flag, param2 )
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local facedir_to_yaw = {
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[0] = rad_90,
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[1] = 0,
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[2] = -rad_90,
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[3] = rad_180,
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}
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local baseyaw = facedir_to_yaw[ param2 ]
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if not baseyaw then
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minetest.log("warning", "[flags] Unsupported flag pole node param2: "..tostring(param2))
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return
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end
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flag:set_yaw( baseyaw - rad_180 )
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end
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local function spawn_flag( pos )
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local node_idx = minetest.hash_node_position( pos )
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local param2 = minetest.get_node( pos ).param2
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local flag_pos = get_flag_pos( pos, param2 )
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local obj = minetest.add_entity( flag_pos, "pirate_flag:wavingflag" )
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if not obj or not obj:get_luaentity( ) then
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return
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end
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obj:get_luaentity( ).node_idx = node_idx
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rotate_flag_by_param2( obj, param2 )
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active_flags[ node_idx ] = obj
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return obj
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end
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local function spawn_flag_and_set_texture( pos )
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local flag = spawn_flag( pos )
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if flag and flag:get_luaentity() then
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local meta = minetest.get_meta( pos )
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local flag_name = meta:get_string("flag_name")
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if flag_name == "" then
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flag_name = DEFAULT_FLAG
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meta:set_string("flag_idx", "")
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meta:set_string("flag_name", flag_name)
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end
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flag:get_luaentity():reset_texture( flag_name )
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end
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return flag
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end
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local function cycle_flag( pos, player, cycle_backwards )
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local pname = player:get_player_name( )
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if minetest.is_protected( pos, pname ) and not
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minetest.check_player_privs( pname, "protection_bypass") then
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minetest.record_protection_violation( pos, pname )
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return
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end
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local node_idx = minetest.hash_node_position( pos )
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local aflag = active_flags[ node_idx ]
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local flag
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if aflag then
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flag = aflag:get_luaentity( )
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end
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if flag then
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local flag_name
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if cycle_backwards then
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flag_name = flag:reset_texture( nil, -1 )
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else
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flag_name = flag:reset_texture( nil, 1 )
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end
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local meta = minetest.get_meta( pos )
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meta:set_string("flag_name", flag_name)
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else
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spawn_flag_and_set_texture( pos )
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end
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end
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minetest.register_node( "pirate_flag:upper_mast", {
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description = ("Flag Pole with Flag"),
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drawtype = "mesh",
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paramtype = "light",
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mesh = "flags_mast_upper.obj",
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paramtype2 = "facedir",
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tiles = { "flags_baremetal.png", "flags_baremetal.png" },
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wield_image = "flags_pole_top_inv.png",
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inventory_image = "flags_pole_top_inv.png",
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groups = { cracky = 2 },
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sounds = metal_sounds,
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is_ground_content = false,
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drop = {"pirate_flag:lower_mast 2", "pirate_flag:upper_mast"},
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selection_box = {
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type = "fixed",
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fixed = { { -2/16, -1/2, -2/16, 2/16, 3/2, 2/16 } },
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},
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collision_box = {
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type = "fixed",
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fixed = { { -2/16, -1/2, -2/16, 2/16, 3/2, 2/16 } },
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},
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on_rightclick = function ( pos, node, player )
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cycle_flag( pos, player )
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end,
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on_punch = function ( pos, node, player )
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cycle_flag( pos, player, -1 )
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end,
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node_placement_prediction = "",
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on_place = function( itemstack, placer, pointed_thing )
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if not pointed_thing.type == "node" then
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return itemstack
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end
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local node = minetest.get_node(pointed_thing.under)
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local node2 = minetest.get_node(pointed_thing.under - vector.new(0, 1, 0))
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if (node.name ~= "pirate_flag:lower_mast" or node2.name ~= "pirate_flag:lower_mast") then
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return itemstack
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end
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local pn = placer:get_player_name()
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if minetest.is_protected(pointed_thing.under, pn) then
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minetest.record_protection_violation(pointed_thing.under, pn)
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return itemstack
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elseif minetest.is_protected(pointed_thing.under - vector.new(0, 1, 0), pn) then
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minetest.record_protection_violation(pointed_thing.under - vector.new(0, 1, 0), pn)
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return itemstack
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end
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local yaw = placer:get_look_horizontal()
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local dir = minetest.yaw_to_dir(yaw)
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local param2 = (minetest.dir_to_facedir(dir) + 3) % 4
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minetest.set_node(pointed_thing.under - vector.new(0, 1, 0), {name = "pirate_flag:upper_mast", param2 = param2 })
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minetest.set_node(pointed_thing.under, {name = "pirate_flag:upper_mast_hidden_1"})
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if not (minetest.is_creative_enabled(pn)) then
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itemstack:take_item()
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end
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local def = minetest.registered_nodes["pirate_flag:upper_mast"]
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if def and def.sounds then
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minetest.sound_play(def.sounds.place, {pos = pos}, true)
|
||
|
end
|
||
|
|
||
|
return itemstack
|
||
|
end,
|
||
|
|
||
|
on_construct = function ( pos )
|
||
|
local flag = spawn_flag ( pos )
|
||
|
if flag and flag:get_luaentity() then
|
||
|
local meta = minetest.get_meta( pos )
|
||
|
meta:set_string("flag_name", flag:get_luaentity().flag_name)
|
||
|
end
|
||
|
end,
|
||
|
|
||
|
on_destruct = function ( pos )
|
||
|
local node_idx = minetest.hash_node_position( pos )
|
||
|
if active_flags[ node_idx ] then
|
||
|
active_flags[ node_idx ]:remove( )
|
||
|
end
|
||
|
end,
|
||
|
|
||
|
after_destruct = function( pos )
|
||
|
local above1 = {x=pos.x, y=pos.y+1, z=pos.z}
|
||
|
if minetest.get_node( above1 ).name == "pirate_flag:upper_mast_hidden_1" then
|
||
|
minetest.remove_node( above1 )
|
||
|
end
|
||
|
end,
|
||
|
|
||
|
on_rotate = function(pos, node, user, mode, new_param2)
|
||
|
if mode == screwdriver.ROTATE_AXIS then
|
||
|
return false
|
||
|
end
|
||
|
local node_idx = minetest.hash_node_position( pos )
|
||
|
local aflag = active_flags[ node_idx ]
|
||
|
if aflag then
|
||
|
local lua = aflag:get_luaentity( )
|
||
|
if not lua then
|
||
|
aflag = spawn_flag_and_set_texture( pos )
|
||
|
if aflag then
|
||
|
lua = aflag:get_luaentity()
|
||
|
if not lua then
|
||
|
return
|
||
|
end
|
||
|
end
|
||
|
end
|
||
|
local flag_pos_idx = lua.node_idx
|
||
|
local flag_pos = minetest.get_position_from_hash( flag_pos_idx )
|
||
|
flag_pos = get_flag_pos( flag_pos, new_param2 )
|
||
|
rotate_flag_by_param2( aflag, new_param2 )
|
||
|
aflag:set_pos( flag_pos )
|
||
|
end
|
||
|
end,
|
||
|
} )
|
||
|
|
||
|
minetest.register_lbm({
|
||
|
name = "pirate_flag:respawn_flags",
|
||
|
label = "Respawn flags",
|
||
|
nodenames = {"pirate_flag:upper_mast"},
|
||
|
run_at_every_load = true,
|
||
|
action = function(pos, node)
|
||
|
local node_idx = minetest.hash_node_position( pos )
|
||
|
local aflag = active_flags[ node_idx ]
|
||
|
if aflag then
|
||
|
return
|
||
|
end
|
||
|
spawn_flag_and_set_texture( pos )
|
||
|
end
|
||
|
})
|
||
|
|
||
|
minetest.register_lbm({
|
||
|
name = "pirate_flag:update_node_meta",
|
||
|
label = "Update mast node meta",
|
||
|
nodenames = {"pirate_flag:upper_mast"},
|
||
|
run_at_every_load = false,
|
||
|
action = function(pos, node)
|
||
|
local meta = minetest.get_meta( pos )
|
||
|
local flag_idx = meta:get_int("flag_idx")
|
||
|
if flag_idx ~= 0 then
|
||
|
flag_name = DEFAULT_FLAG
|
||
|
meta:set_string("flag_idx", "")
|
||
|
meta:set_string("flag_name", flag_name)
|
||
|
end
|
||
|
end
|
||
|
})
|
||
|
|
||
|
local flagpole_material = minetest.settings:get('flagpole_material') or "default:steel_ingot"
|
||
|
|
||
|
if minetest.registered_items[flagpole_material] then
|
||
|
minetest.register_craft({
|
||
|
output = "pirate_flag:lower_mast 3",
|
||
|
recipe = {
|
||
|
{flagpole_material},
|
||
|
{flagpole_material},
|
||
|
{flagpole_material},
|
||
|
},
|
||
|
})
|
||
|
end
|
||
|
minetest.register_craft({
|
||
|
output = "pirate_flag:upper_mast",
|
||
|
recipe = {
|
||
|
{"group:wool", "group:wool", "group:wool"},
|
||
|
{"group:wool", "group:wool", "group:wool"},
|
||
|
},
|
||
|
})
|
||
|
|
||
|
-- Add a hidden upper mast segments to block the node
|
||
|
-- the upper mast occupies. This is also needed to prevent
|
||
|
-- collision issues.
|
||
|
-- This node will be automatically
|
||
|
-- added/removed when the upper mast is constructed
|
||
|
-- or destructed.
|
||
|
minetest.register_node( "pirate_flag:upper_mast_hidden_1", {
|
||
|
drawtype = "airlike",
|
||
|
pointable = false,
|
||
|
paramtype = "light",
|
||
|
sunlight_propagates = true,
|
||
|
wield_image = "flags_pole_hidden1_inv.png",
|
||
|
inventory_image = "flags_pole_hidden1_inv.png",
|
||
|
groups = { not_in_creative_inventory = 1 },
|
||
|
sounds = metal_sounds,
|
||
|
collision_box = {
|
||
|
type = "fixed",
|
||
|
fixed = { { -3/32, -1/2, -3/32, 3/32, 1/5, 3/32 } },
|
||
|
},
|
||
|
is_ground_content = false,
|
||
|
on_blast = function() end,
|
||
|
can_dig = function() return false end,
|
||
|
drop = "",
|
||
|
diggable = false,
|
||
|
floodable = false,
|
||
|
})
|
||
|
|
||
|
-- API
|
||
|
flags.add_flag = function( name )
|
||
|
if flag_exists( name ) then
|
||
|
return false
|
||
|
end
|
||
|
table.insert( flag_list, name )
|
||
|
update_next_prev_flag_lists()
|
||
|
return true
|
||
|
end
|
||
|
|
||
|
flags.get_flags = function( )
|
||
|
return table.copy( flag_list )
|
||
|
end
|
||
|
|
||
|
flags.set_flag_at = function( pos, flag_name )
|
||
|
local node = minetest.get_node( pos )
|
||
|
if node.name ~= "pirate_flag:upper_mast" then
|
||
|
return false
|
||
|
end
|
||
|
if not flag_exists( flag_name ) then
|
||
|
return false
|
||
|
end
|
||
|
local node_idx = minetest.hash_node_position( pos )
|
||
|
local aflag = active_flags[ node_idx ]
|
||
|
local flag
|
||
|
if aflag then
|
||
|
flag = aflag:get_luaentity( )
|
||
|
end
|
||
|
if flag then
|
||
|
local set_flag_name = flag:reset_texture( flag_name )
|
||
|
if set_flag_name == flag_name then
|
||
|
local meta = minetest.get_meta( pos )
|
||
|
meta:set_string("flag_name", flag_name)
|
||
|
return true
|
||
|
end
|
||
|
end
|
||
|
return false
|
||
|
end
|
||
|
|
||
|
flags.get_flag_at = function( pos )
|
||
|
local node = minetest.get_node( pos )
|
||
|
if node.name ~= "pirate_flag:upper_mast" then
|
||
|
return nil
|
||
|
end
|
||
|
local meta = minetest.get_meta( pos )
|
||
|
local flag_name = meta:get_string("flag_name")
|
||
|
if flag_name ~= "" then
|
||
|
return flag_name
|
||
|
end
|
||
|
end
|
||
|
|
||
|
-- Returns the wind strength at pos.
|
||
|
-- Can be overwritten by mods.
|
||
|
flags.get_wind = function( pos )
|
||
|
-- The default wind function ignores pos.
|
||
|
-- Returns a wind between ca. 0 and 55
|
||
|
local coords = { x = os.time( ) % 65535, y = 0 }
|
||
|
local cur_wind
|
||
|
if old_get2d then
|
||
|
cur_wind = wind_noise:get2d(coords)
|
||
|
else
|
||
|
cur_wind = wind_noise:get_2d(coords)
|
||
|
end
|
||
|
cur_wind = cur_wind * 30 + 30
|
||
|
return cur_wind
|
||
|
end
|