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https://git.minetest.land/VoxeLibre/VoxeLibre.git
synced 2024-08-22 01:47:24 +02:00
157 lines
5.2 KiB
Lua
157 lines
5.2 KiB
Lua
-- Eye of Ender
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local S = minetest.get_translator(minetest.get_current_modname())
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minetest.register_entity("mcl_end:ender_eye", {
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physical = false,
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textures = {"mcl_end_ender_eye.png"},
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visual_size = {x=1.5, y=1.5},
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collisionbox = {0,0,0,0,0,0},
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pointable = false,
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-- Save and restore age
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get_staticdata = function(self)
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return tostring(self._age)
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end,
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on_activate = function(self, staticdata, dtime_s)
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local age = tonumber(staticdata)
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if type(age) == "number" then
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self._age = age
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if self._age >= 2 then
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self._phase = 1
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else
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self._phase = 0
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end
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end
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end,
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on_step = function(self, dtime)
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self._age = self._age + dtime
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if self._age >= 3 then
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-- End of life
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local r = math.random(1,5)
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if r == 1 then
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-- 20% chance to get destroyed completely.
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-- 100% if in Creative Mode
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self.object:remove()
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return
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else
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-- 80% to drop as an item
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local pos = self.object:get_pos()
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local v = self.object:get_velocity()
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self.object:remove()
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local item = minetest.add_item(pos, "mcl_end:ender_eye")
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item:set_velocity(v)
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return
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end
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elseif self._age >= 2 then
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if self._phase == 0 then
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self._phase = 1
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-- Stop the eye and wait for another second.
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-- The vertical speed changes are just eye candy.
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self.object:set_acceleration({x=0, y=-3, z=0})
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self.object:set_velocity({x=0, y=self.object:get_velocity().y*0.2, z=0})
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end
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else
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-- Fly normally and generate particles
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local pos = self.object:get_pos()
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pos.x = pos.x + math.random(-1, 1)*0.5
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pos.y = pos.y + math.random(-1, 0)*0.5
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pos.z = pos.z + math.random(-1, 1)*0.5
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minetest.add_particle({
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pos = pos,
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texture = "mcl_particles_teleport.png",
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expirationtime = 1,
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velocity = {x=math.random(-1, 1)*0.1, y=math.random(-30, 0)*0.1, z=math.random(-1, 1)*0.1},
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acceleration = {x=0, y=0, z=0},
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size = 2.5,
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})
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end
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end,
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_age = 0, -- age in seconds
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_phase = 0, -- phase 0: flying. phase 1: idling in mid air, about to drop or shatter
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})
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minetest.register_craftitem("mcl_end:ender_eye", {
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description = S("Eye of Ender"),
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_tt_help = S("Guides the way to the mysterious End dimension"),
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_doc_items_longdesc = S("This item is used to locate End portal shrines in the Overworld and to activate End portals.") .. "\n" .. S("NOTE: The End dimension is currently incomplete and might change in future versions."),
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_doc_items_usagehelp = S("Use the attack key to release the eye of ender. It will rise and fly in the horizontal direction of the closest end portal shrine. If you're very close, the eye of ender will take the direct path to the End portal shrine instead. After a few seconds, it stops. It may drop as an item, but there's a 20% chance it shatters.") .. "\n" .. S("To activate an End portal, eyes of ender need to be placed into each block of an intact End portal frame."),
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wield_image = "mcl_end_ender_eye.png",
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inventory_image = "mcl_end_ender_eye.png",
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stack_max = 64,
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-- Throw eye of ender to make it fly to the closest stronghold
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on_use = function(itemstack, user, pointed_thing)
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if user == nil then
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return
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end
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local origin = user:get_pos()
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origin.y = origin.y + 1.5
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local strongholds = mcl_structures.get_structure_data("stronghold")
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local dim = mcl_worlds.pos_to_dimension(origin)
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local is_creative = minetest.is_creative_enabled(user:get_player_name())
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-- Just drop the eye of ender if there are no strongholds
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if #strongholds <= 0 or dim ~= "overworld" then
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if not is_creative then
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minetest.item_drop(ItemStack("mcl_end:ender_eye"), user, user:get_pos())
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itemstack:take_item()
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end
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return itemstack
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end
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-- Find closest stronghold.
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-- Note: Only the horizontal axes are taken into account.
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local closest_stronghold
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local lowest_dist
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for s=1, #strongholds do
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local h_pos = table.copy(strongholds[s].pos)
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local h_origin = table.copy(origin)
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h_pos.y = 0
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h_origin.y = 0
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local dist = vector.distance(h_origin, h_pos)
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if not closest_stronghold then
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closest_stronghold = strongholds[s]
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lowest_dist = dist
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else
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if dist < lowest_dist then
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closest_stronghold = strongholds[s]
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lowest_dist = dist
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end
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end
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end
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-- Throw it!
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local obj = minetest.add_entity(origin, "mcl_end:ender_eye")
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local dir
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if lowest_dist <= 25 then
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local velocity = 4
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-- Stronghold is close: Fly directly to stronghold and take Y into account.
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dir = vector.normalize(vector.direction(origin, closest_stronghold.pos))
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obj:set_velocity({x=dir.x*velocity, y=dir.y*velocity, z=dir.z*velocity})
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else
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local velocity = 12
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-- Don't care about Y if stronghold is still far away.
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-- Fly to direction of X/Z, and always upwards so it can be seen easily.
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local o = {x=origin.x, y=0, z=origin.z}
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local s = {x=closest_stronghold.pos.x, y=0, z=closest_stronghold.pos.z}
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dir = vector.normalize(vector.direction(o, s))
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obj:set_acceleration({x=dir.x*-3, y=4, z=dir.z*-3})
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obj:set_velocity({x=dir.x*velocity, y=3, z=dir.z*velocity})
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end
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if not is_creative then
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itemstack:take_item()
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end
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return itemstack
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end,
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})
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minetest.register_craft({
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type = "shapeless",
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output = "mcl_end:ender_eye",
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recipe = {"mcl_mobitems:blaze_powder", "mcl_throwing:ender_pearl"},
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})
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