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authorsfan5 <sfan5@live.de>2022-01-13 22:12:44 +0100
committersfan5 <sfan5@live.de>2022-01-15 17:45:08 +0100
commit9a12e4499ecf5c1a3467af9c831d0d350a21923d (patch)
tree50e7dbe0fa599ebda46910c46bcb449cf15e1924 /android/app/src/main
parent379473b67007abf78d87ebbaf925b4948cf72ae6 (diff)
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Minor improvements to Lua sandbox
Diffstat (limited to 'android/app/src/main')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.39.1) at 2025-05-11 08:28:42 +0000
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local S = minetest.get_translator("testpathfinder")

-- Config parameters

-- Maximum direct distance between start and end
local MAX_DIRECT_DISTANCE = 64
-- Maximum search distance
local MAX_SEARCH_DISTANCE = 32
-- Maximum permitted jump height
local MAX_JUMP = 1
-- Maximum permitted drop height
local MAX_DROP = 5
-- If true, mod won't refuse to run pathfinder even at long distances
local IGNORE_MAX_DISTANCE_SAFEGUARD = false

-- End of config parameters

local timer = 0
local algorithms = {
	"A*_noprefetch",
	"A*",
	"Dijkstra",
}

local function find_path_for_player(player, itemstack)
	local meta = itemstack:get_meta()
	if not meta then
		return
	end
	local x = meta:get_int("pos_x")
	local y = meta:get_int("pos_y")
	local z = meta:get_int("pos_z")
	local algo = meta:get_int("algorithm")
	if x and y and z then
		local pos2 = {x=x, y=y, z=z}
		algo = algorithms[algo+1]
		local pos1 = vector.round(player:get_pos())
		-- Don't bother calling pathfinder for high distance to avoid freezing
		if (not IGNORE_MAX_DISTANCE_SAFEGUARD) and (vector.distance(pos1, pos2) > MAX_DIRECT_DISTANCE) then
			minetest.chat_send_player(player:get_player_name(), S("Destination too far away! Set a destination (via placing) within a distance of @1 and try again!", MAX_DIRECT_DISTANCE))
			return
		end
		local str = S("Path from @1 to @2:",
			minetest.pos_to_string(pos1),
			minetest.pos_to_string(pos2))

		minetest.chat_send_player(player:get_player_name(), str)
		local time_start = minetest.get_us_time()
		local path = minetest.find_path(pos1, pos2, MAX_SEARCH_DISTANCE, MAX_JUMP, MAX_DROP, algo)
		local time_end = minetest.get_us_time()
		local time_diff = time_end - time_start
		str = ""
		if not path then
			minetest.chat_send_player(player:get_player_name(), S("No path!"))
			minetest.chat_send_player(player:get_player_name(), S("Time: @1 ms", time_diff/1000))
			return
		end
		for s=1, #path do
			str = str .. minetest.pos_to_string(path[s]) .. "\n"
			local t
			if s == #path then
				t = "testpathfinder_waypoint_end.png"
			elseif s == 1 then
				t = "testpathfinder_waypoint_start.png"
			else
				local c = math.floor(((#path-s)/#path)*255)
				t = string.format("testpathfinder_waypoint.png^[multiply:#%02x%02x00", 0xFF-c, c)
			end
			minetest.add_particle({
				pos = path[s],
				expirationtime = 5 + 0.2 * s,
				playername = player:get_player_name(),
				glow = minetest.LIGHT_MAX,
				texture = t,
				size = 3,
			})
		end
		minetest.chat_send_player(player:get_player_name(), str)
		minetest.chat_send_player(player:get_player_name(), S("Path length: @1", #path))
		minetest.chat_send_player(player:get_player_name(), S("Time: @1 ms", time_diff/1000))
	end
end

local function set_destination(itemstack, user, pointed_thing)
	if not (user and user:is_player()) then
		return
	end
	local name = user:get_player_name()
	local obj
	local meta = itemstack:get_meta()
	if pointed_thing.type == "node" then
		local pos = pointed_thing.above
		meta:set_int("pos_x", pos.x)
		meta:set_int("pos_y", pos.y)
		meta:set_int("pos_z", pos.z)
		minetest.chat_send_player(user:get_player_name(), S("Destination set to @1", minetest.pos_to_string(pos)))