366 lines
9.7 KiB
Lua
366 lines
9.7 KiB
Lua
--------------------------------------------------------
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-- Minetest :: Pride Flags Mod (pride_flags)
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--
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-- See README.txt for licensing and other information.
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-- Copyright (c) 2022, Leslie E. Krause
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--------------------------------------------------------
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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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local flag_list = { "rainbow", "lesbian", "bisexual", "transgender", "genderqueer", "nonbinary", "pansexual", "asexual" }
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local S
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if minetest.get_translator then
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S = minetest.get_translator("pride_flags")
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else
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S = function(s) return s end
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end
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minetest.register_entity( "pride_flags: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 = { -0.1, -0.85, -0.1, 0.1, 0.85, 0.1 },
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backface_culling = false,
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pointable = false,
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mesh = "pride_flags_wavingflag.b3d",
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textures = { "prideflag_rainbow.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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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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self.flag_idx = data.flag_idx
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self.node_idx = data.node_idx
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if not self.flag_idx 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_idx )
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active_flags[ self.node_idx ] = self.object
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else
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self.flag_idx = 1
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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 == "pride_flags: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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minetest.sound_stop( self.sound_id )
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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 coords = { x = os.time( ) % 65535, y = 0 }
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local cur_wind
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if old_get2d then
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cur_wind = wind_noise:get2d(coords)
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else
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cur_wind = wind_noise:get_2d(coords)
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end
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cur_wind = cur_wind * 30 + 30
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minetest.log("verbose", "[pride_flags] Current wind: " .. cur_wind)
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local anim_speed
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local wave_sound
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cur_wind = math.random(0, 50)
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cur_wind = 30
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if cur_wind < 10 then
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anim_speed = 10 -- 2 cycle
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wave_sound = "pride_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 = "pride_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 = "pride_flags_flagwave2"
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else
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anim_speed = 80 -- 16 cycles
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wave_sound = "pride_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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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_idx )
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if not flag_idx then
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-- next flag
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self.flag_idx = self.flag_idx % #flag_list + 1 -- this automatically increments
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elseif flag_idx == -1 then
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-- previous flag
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self.flag_idx = self.flag_idx - 1
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if self.flag_idx < 1 then
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self.flag_idx = #flag_list
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end
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else
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-- set flag directly
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self.flag_idx = flag_idx
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end
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-- Fallback flag
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if not flag_list[ self.flag_idx ] then
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self.flag_idx = 1
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end
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local texture = string.format( "prideflag_%s.png", flag_list[ self.flag_idx ] )
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self.object:set_properties( { textures = { texture } } )
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return self.flag_idx
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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_idx = self.flag_idx,
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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( "pride_flags:lower_mast", {
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description = S("Flag Pole"),
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drawtype = "mesh",
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paramtype = "light",
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mesh = "pride_flags_mast_lower.obj",
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paramtype2 = "facedir",
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tiles = { "pride_flags_baremetal.png", "pride_flags_baremetal.png" },
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wield_image = "pride_flags_pole_bottom_inv.png",
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inventory_image = "pride_flags_pole_bottom_inv.png",
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groups = { cracky = 1, level = 2 },
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sounds = metal_sounds,
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selection_box = {
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type = "fixed",
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fixed = { { -3/32, -1/2, -3/32, 3/32, 1/2, 3/32 } },
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},
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collision_box = {
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type = "fixed",
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fixed = { { -3/32, -1/2, -3/32, 3/32, 1/2, 3/32 } },
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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 = 0.6, z = -0.1 },
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[1] = { x = -0.1, y = 0.6, z = 0 },
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[2] = { x = 0, y = 0.6, z = 0.1 },
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[3] = { x = 0.1, y = 0.6, 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", "[pride_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, "pride_flags: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_idx = meta:get_int("flag_idx")
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flag:get_luaentity():reset_texture( flag_idx )
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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 node_idx = minetest.hash_node_position( pos )
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if minetest.check_player_privs( player:get_player_name( ), "server" ) then
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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_idx
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if cycle_backwards then
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flag_idx = flag:reset_texture( -1 )
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else
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flag_idx = flag:reset_texture( )
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end
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local meta = minetest.get_meta( pos )
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meta:set_int("flag_idx", flag_idx)
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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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end
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minetest.register_node( "pride_flags:upper_mast", {
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description = S("Flag Pole with Flag"),
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drawtype = "mesh",
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paramtype = "light",
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mesh = "pride_flags_mast_upper.obj",
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paramtype2 = "facedir",
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tiles = { "pride_flags_baremetal.png", "pride_flags_baremetal.png" },
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wield_image = "pride_flags_pole_top_inv.png",
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inventory_image = "pride_flags_pole_top_inv.png",
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groups = { cracky = 1, level = 2 },
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sounds = metal_sounds,
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selection_box = {
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type = "fixed",
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fixed = { { -3/32, -1/2, -3/32, 3/32, 27/16, 3/32 } },
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},
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collision_box = {
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type = "fixed",
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fixed = { { -3/32, -1/2, -3/32, 3/32, 27/16, 3/32 } },
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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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on_construct = function ( 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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meta:set_int("flag_idx", flag:get_luaentity().flag_idx)
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end
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end,
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on_destruct = function ( pos )
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local node_idx = minetest.hash_node_position( pos )
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if active_flags[ node_idx ] then
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active_flags[ node_idx ]:remove( )
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end
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end,
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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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local node_idx = minetest.hash_node_position( pos )
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local aflag = active_flags[ node_idx ]
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if aflag then
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local lua = aflag:get_luaentity( )
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if not lua then
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aflag = spawn_flag_and_set_texture( pos )
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if aflag then
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lua = aflag:get_luaentity()
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if not lua then
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return
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end
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end
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end
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local flag_pos_idx = lua.node_idx
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local flag_pos = minetest.get_position_from_hash( flag_pos_idx )
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flag_pos = get_flag_pos( flag_pos, new_param2 )
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rotate_flag_by_param2( aflag, new_param2 )
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aflag:set_pos( flag_pos )
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end
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end,
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} )
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minetest.register_lbm({
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name = "pride_flags:respawn_flags",
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label = "Respawn flags",
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nodenames = {"pride_flags:upper_mast"},
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run_at_every_load = true,
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action = function(pos, node)
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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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if aflag then
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return
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end
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spawn_flag_and_set_texture( pos )
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end
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})
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