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Simplify respawn search algorithm, Wuzzy/MineClone2#833

This commit is contained in:
kay27 2020-09-10 21:25:02 +04:00
parent b47ff2b9be
commit fa97aca76a
1 changed files with 34 additions and 13 deletions
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43
mods/PLAYER/mcl_spawn/init.lua
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@ -3,6 +3,22 @@ mcl_spawn = {}
local S = minetest.get_translator("mcl_spawn")
local mg_name = minetest.get_mapgen_setting("mg_name")
local node_search_list =
{
--[[1]] {x = 0, y = 0, z = -1}, --
--[[2]] {x = -1, y = 0, z = 0}, --
--[[3]] {x = -1, y = 0, z = 1}, --
--[[4]] {x = 0, y = 0, z = 2}, -- z^ 8 4 9
--[[5]] {x = 1, y = 0, z = 1}, -- | 3 5
--[[6]] {x = 1, y = 0, z = 0}, -- | 2 * 6
--[[7]] {x = -1, y = 0, z = -1}, -- | 7 1 A
--[[8]] {x = -1, y = 0, z = 2}, -- +----->
--[[9]] {x = 1, y = 0, z = 2}, -- x
--[[A]] {x = 1, y = 0, z = -1}, --
--[[B]] {x = 0, y = 1, z = 0}, --
--[[C]] {x = 0, y = 1, z = 1}, --
}
local cached_world_spawn
mcl_spawn.get_world_spawn_pos = function()
@ -121,23 +137,28 @@ minetest.register_on_respawnplayer(function(player)
minetest.chat_send_player(player:get_player_name(), S("Your spawn bed was missing or blocked."))
return false
end
-- Find spawning position on/near the bed free of solid or damaging blocks iterating a square spiral 15x15:
local x, z, dx, dz = 0, 0, 0, -1
for i = 1, 225 do
if x > -8 and x < 8 and z > -8 and z < 8 then
for _,y in ipairs({0, 1, -1, 2, -2, 3, -3, 4, -4}) do
local spawn_pos = {x = pos.x - z, y=pos.y + y, z = pos.z - x}
local dir = minetest.facedir_to_dir(minetest.get_node(pos).param2)
local offset
for _, o in ipairs(node_search_list) do
if dir.z == -1 then
offset = {x = o.x, y = o.y, z = o.z}
elseif dir.z == 1 then
offset = {x = -o.x, y = o.y, z = -o.z}
elseif dir.x == -1 then
offset = {x = o.z, y = o.y, z = -o.x}
else -- dir.x == 1
offset = {x = -o.z, y = o.y, z = o.x}
end
local spawn_pos = vector.add(pos, offset)
if good_for_respawn(spawn_pos) then
player:set_pos(spawn_pos)
return true
end
end
end
if x == z or (x < 0 and x == -z) or (x > 0 and x == 1 - z) then
dx, dz = -dz, dx
end
x, z = x + dx, z + dz
end
-- We here if we didn't find suitable place for respawn:
return false
end