minetest.git - modified minetest for gpcfs purposes

diff options

Diffstat (limited to 'src/noise.cpp')

0 files changed, 0 insertions, 0 deletions

'#n51'>51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151

-- Minetest: builtin/game/chat.lua

-- Helper function that implements search and replace without pattern matching
-- Returns the string and a boolean indicating whether or not the string was modified
local function safe_gsub(s, replace, with)
	local i1, i2 = s:find(replace, 1, true)
	if not i1 then
		return s, false
	end

	return s:sub(1, i1 - 1) .. with .. s:sub(i2 + 1), true
end

--
-- Chat message formatter
--

-- Implemented in Lua to allow redefinition
function core.format_chat_message(name, message)
	local error_str = "Invalid chat message format - missing %s"
	local str = core.settings:get("chat_message_format")
	local replaced

	-- Name
	str, replaced = safe_gsub(str, "@name", name)
	if not replaced then
		error(error_str:format("@name"), 2)
	end

	-- Timestamp
	str = safe_gsub(str, "@timestamp", os.date("%H:%M:%S", os.time()))

	-- Insert the message into the string only after finishing all other processing
	str, replaced = safe_gsub(str, "@message", message)
	if not replaced then
		error(error_str:format("@message"), 2)
	end

	return str
end

--
-- Chat command handler
--

core.chatcommands = core.registered_chatcommands -- BACKWARDS COMPATIBILITY

core.register_on_chat_message(function(name, message)
	if message:sub(1,1) ~= "/" then
		return
	end

	local cmd, param = string.match(message, "^/([^ ]+) *(.*)")
	if not cmd then
		core.chat_send_player(name, "-!- Empty command")
		return true
	end

	param = param or ""

	-- Run core.registered_on_chatcommands callbacks.
	if core.run_callbacks(core.registered_on_chatcommands, 5, name, cmd, param) then
		return true
	end

	local cmd_def = core.registered_chatcommands[cmd]
	if not cmd_def then
		core.chat_send_player(name, "-!- Invalid command: " .. cmd)
		return true
	end
	local has_privs, missing_privs = core.check_player_privs(name, cmd_def.privs)
	if has_privs then
		core.set_last_run_mod(cmd_def.mod_origin)
		local success, result = cmd_def.func(name, param)
		if success == false and result == nil then
			core.chat_send_player(name, "-!- Invalid command usage")
			local help_def = core.registered_chatcommands["help"]
			if help_def then
				local _, helpmsg = help_def.func(name, cmd)
				if helpmsg then
					core.chat_send_player(name, helpmsg)
				end
			end
		elseif result then
			core.chat_send_player(name, result)
		end
	else
		core.chat_send_player(name, "You don't have permission"
				.. " to run this command (missing privileges: "
				.. table.concat(missing_privs, ", ") .. ")")
	end
	return true  -- Handled chat message
end)

if core.settings:get_bool("profiler.load") then
	-- Run after register_chatcommand and its register_on_chat_message
	-- Before any chatcommands that should be profiled
	profiler.init_chatcommand()
end

-- Parses a "range" string in the format of "here (number)" or
-- "(x1, y1, z1) (x2, y2, z2)", returning two position vectors
local function parse_range_str(player_name, str)
	local p1, p2
	local args = str:split(" ")

	if args[1] == "here" then
		p1, p2 = core.get_player_radius_area(player_name, tonumber(args[2]))
		if p1 == nil then
			return false, "Unable to get player " .. player_name .. " position"
		end
	else
		p1, p2 = core.string_to_area(str)
		if p1 == nil then
			return false, "Incorrect area format. Expected: (x1,y1,z1) (x2,y2,z2)"
		end
	end

	return p1, p2
end

--
-- Chat commands
--
core.register_chatcommand("me", {
	params = "<action>",
	description = "Show chat action (e.g., '/me orders a pizza' displays"
			.. " '<player name> orders a pizza')",
	privs = {shout=true},
	func = function(name, param)
		core.chat_send_all("* " .. name .. " " .. param)
		return true
	end,
})

core.register_chatcommand("admin", {
	description = "Show the name of the server owner",
	func = function(name)
		local admin = core.settings:get("name")
		if admin then
			return true, "The administrator of this server is " .. admin .. "."
		else
			return false, "There's no administrator named in the config file."
		end
	end,
})

core.register_chatcommand("privs", {
	params = "[<name>]",
	description = "Show privileges of yourself or another player",
	func = function(caller, param)
		param = param:trim()
		local name = (param ~= "" and param or caller)
		if not core.player_exists(name) then
			return false, "Player " .. name .. " does not exist."
		end
		return true, "Privileges of " .. name .. ": "
			.. core.privs_to_string(
				core.get_player_privs(name), ", ")
	end,
})

core.register_chatcommand("haspriv", {
	params = "<privilege>",
	description = "Return list of all online players with privilege.",
	privs = {basic_privs = true},
	func = function(caller, param)
		param = param:trim()
		if param == "" then
			return false, "Invalid parameters (see /help haspriv)"
		end
		if not core.registered_privileges[param] then
			return false, "Unknown privilege!"
		end
		local privs = core.string_to_privs(param)
		local players_with_priv = {}
		for _, player in pairs(core.get_connected_players()) do
			local player_name = player:get_player_name()
			if core.check_player_privs(player_name, privs) then
				table.insert(players_with_priv, player_name)
			end
		end
		return true, "Players online with the \"" .. param .. "\" privilege: " ..
			table.concat(players_with_priv, ", ")
	end
})

local function handle_grant_command(caller, grantname, grantprivstr)
	local caller_privs = core.get_player_privs(caller)
	if not (caller_privs.privs or caller_privs.basic_privs) then
		return false, "Your privileges are insufficient."
	end

	if not core.get_auth_handler().get_auth(grantname) then
		return false, "Player " .. grantname .. " does not exist."
	end
	local grantprivs = core.string_to_privs(grantprivstr)
	if grantprivstr == "all" then
		grantprivs = core.registered_privileges
	end
	local privs = core.get_player_privs(grantname)
	local privs_unknown = ""
	local basic_privs =
		core.string_to_privs(core.settings:get("basic_privs") or "interact,shout")
	for priv, _ in pairs(grantprivs) do
		if not basic_privs[priv] and not caller_privs.privs then
			return false, "Your privileges are insufficient."
		end
		if not core.registered_privileges[priv] then
			privs_unknown = privs_unknown .. "Unknown privilege: " .. priv .. "\n"
		end
		privs[priv] = true
	end
	if privs_unknown ~= "" then
		return false, privs_unknown
	end
	for priv, _ in pairs(grantprivs) do
		-- call the on_grant callbacks
		core.run_priv_callbacks(grantname, priv, caller, "grant")
	end
	core.set_player_privs(grantname, privs)
	core.log("action", caller..' granted ('..core.privs_to_string(grantprivs, ', ')..') privileges to '..grantname)
	if grantname ~= caller then
		core.chat_send_player(grantname, caller
				.. " granted you privileges: "
				.. core.privs_to_string(grantprivs, ' '))
	end
	return true, "Privileges of " .. grantname .. ": "
		.. core.privs_to_string(
			core.get_player_privs(grantname), ' ')
end

core.register_chatcommand("grant", {
	params = "<name> (<privilege> | all)",
	description = "Give privileges to player",
	func = function(name, param)
		local grantname, grantprivstr = string.match(param, "([^ ]+) (.+)")
		if not grantname or not grantprivstr then
			return false, "Invalid parameters (see /help grant)"
		end
		return handle_grant_command(name, grantname, grantprivstr)
	end,
})

core.register_chatcommand("grantme", {
	params = "<privilege> | all",
	description = "Grant privileges to yourself",
	func = function(name, param)
		if param == "" then
			return false, "Invalid parameters (see /help grantme)"
		end
		return handle_grant_command(name, name, param)
	end,
})

local function handle_revoke_command(caller, revokename, revokeprivstr)
	local caller_privs = core.get_player_privs(caller)
	if not (caller_privs.privs or caller_privs.basic_privs) then
		return false, "Your privileges are insufficient."
	end

	if not core.get_auth_handler().get_auth(revokename) then
		return false, "Player " .. revokename .. " does not exist."
	end

	local revokeprivs = core.string_to_privs(revokeprivstr)
	local privs = core.get_player_privs(revokename)
	local basic_privs =
		core.string_to_privs(core.settings:get("basic_privs") or "interact,shout")
	for priv, _ in pairs(revokeprivs) do
		if not basic_privs[priv] and not caller_privs.privs then
			return false, "Your privileges are insufficient."
		end
	end

	if revokeprivstr == "all" then
		revokeprivs = privs
		privs = {}
	else
		for priv, _ in pairs(revokeprivs) do
			privs[priv] = nil
		end
	end

	for priv, _ in pairs(revokeprivs) do
		-- call the on_revoke callbacks
		core.run_priv_callbacks(revokename, priv, caller, "revoke")
	end

	core.set_player_privs(revokename, privs)
	core.log("action", caller..' revoked ('
			..core.privs_to_string(revokeprivs, ', ')
			..') privileges from '..revokename)
	if revokename ~= caller then
		core.chat_send_player(revokename, caller
			.. " revoked privileges from you: "
			.. core.privs_to_string(revokeprivs, ' '))
	end
	return true, "Privileges of " .. revokename .. ": "
		.. core.privs_to_string(
			core.get_player_privs(revokename), ' ')
end

core.register_chatcommand("revoke", {
	params = "<name> (<privilege> | all)",
	description = "Remove privileges from player",
	privs = {},
	func = function(name, param)
		local revokename, revokeprivstr = string.match(param, "([^ ]+) (.+)")
		if not revokename or not revokeprivstr then
			return false, "Invalid parameters (see /help revoke)"
		end
		return handle_revoke_command(name, revokename, revokeprivstr)
	end,
})

core.register_chatcommand("revokeme", {
	params = "<privilege> | all",
	description = "Revoke privileges from yourself",
	privs = {},
	func = function(name, param)
		if param == "" then
			return false, "Invalid parameters (see /help revokeme)"
		end
		return handle_revoke_command(name, name, param)
	end,
})

core.register_chatcommand("setpassword", {
	params = "<name> <password>",
	description = "Set player's password",
	privs = {password=true},
	func = function(name, param)
		local toname, raw_password = string.match(param, "^([^ ]+) +(.+)$")
		if not toname then
			toname = param:match("^([^ ]+) *$")
			raw_password = nil
		end

		if not toname then
			return false, "Name field required"
		end

		local act_str_past, act_str_pres
		if not raw_password then
			core.set_player_password(toname, "")
			act_str_past = "cleared"
			act_str_pres = "clears"
		else
			core.set_player_password(toname,
					core.get_password_hash(toname,
							raw_password))
			act_str_past = "set"
			act_str_pres = "sets"
		end

		if toname ~= name then
			core.chat_send_player(toname, "Your password was "
					.. act_str_past .. " by " .. name)
		end

		core.log("action", name .. " " .. act_str_pres ..
				" password of " .. toname .. ".")

		return true, "Password of player \"" .. toname .. "\" " .. act_str_past
	end,
})

core.register_chatcommand("clearpassword", {
	params = "<name>",
	description = "Set empty password for a player",
	privs = {password=true},
	func = function(name, param)
		local toname = param
		if toname == "" then
			return false, "Name field required"
		end
		core.set_player_password(toname, '')

		core.log("action", name .. " clears password of " .. toname .. ".")

		return true, "Password of player \"" .. toname .. "\" cleared"
	end,
})

core.register_chatcommand("auth_reload", {
	params = "",
	description = "Reload authentication data",
	privs = {server=true},
	func = function(name, param)
		local done = core.auth_reload()
		return done, (done and "Done." or "Failed.")
	end,
})

core.register_chatcommand("remove_player", {
	params = "<name>",
	description = "Remove a player's data",
	privs = {server=true},
	func = function(name, param)
		local toname = param
		if toname == "" then
			return false, "Name field required"
		end

		local rc = core.remove_player(toname)

		if rc == 0 then
			core.log("action", name .. " removed player data of " .. toname .. ".")
			return true, "Player \"" .. toname .. "\" removed."
		elseif rc == 1 then
			return true, "No such player \"" .. toname .. "\" to remove."
		elseif rc == 2 then
			return true, "Player \"" .. toname .. "\" is connected, cannot remove."
		end

		return false, "Unhandled remove_player return code " .. rc .. ""
	end,
})

core.register_chatcommand("teleport", {
	params = "<X>,<Y>,<Z> | <to_name> | (<name> <X>,<Y>,<Z>) | (<name> <to_name>)",
	description = "Teleport to position or player",
	privs = {teleport=true},
	func = function(name, param)
		-- Returns (pos, true) if found, otherwise (pos, false)
		local function find_free_position_near(pos)
			local tries = {
				{x=1,y=0,z=0},
				{x=-1,y=0,z=0},
				{x=0,y=0,z=1},
				{x=0,y=0,z=-1},
			}
			for _, d in ipairs(tries) do
				local p = {x = pos.x+d.x, y = pos.y+d.y, z = pos.z+d.z}
				local n = core.get_node_or_nil(p)
				if n and n.name then
					local def = core.registered_nodes[n.name]
					if def and not def.walkable then
						return p, true
					end
				end
			end
			return pos, false
		end

		local p = {}
		p.x, p.y, p.z = string.match(param, "^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
		p.x = tonumber(p.x)
		p.y = tonumber(p.y)
		p.z = tonumber(p.z)
		if p.x and p.y and p.z then

			local lm = 31000
			if p.x < -lm or p.x > lm or p.y < -lm or p.y > lm or p.z < -lm or p.z > lm then
				return false, "Cannot teleport out of map bounds!"
			end
			local teleportee = core.get_player_by_name(name)
			if teleportee then
				if teleportee:get_attach() then
					return false, "Can't teleport, you're attached to an object!"
				end
				teleportee:set_pos(p)
				return true, "Teleporting to "..core.pos_to_string(p)
			end
		end

		local target_name = param:match("^([^ ]+)$")
		local teleportee = core.get_player_by_name(name)

		p = nil
		if target_name then
			local target = core.get_player_by_name(target_name)
			if target then
				p = target:get_pos()
			end
		end

		if teleportee and p then
			if teleportee:get_attach() then
				return false, "Can't teleport, you're attached to an object!"
			end
			p = find_free_position_near(p)
			teleportee:set_pos(p)
			return true, "Teleporting to " .. target_name
					.. " at "..core.pos_to_string(p)
		end

		if not core.check_player_privs(name, {bring=true}) then
			return false, "You don't have permission to teleport other players (missing bring privilege)"
		end

		teleportee = nil
		p = {}
		local teleportee_name
		teleportee_name, p.x, p.y, p.z = param:match(
				"^([^ ]+) +([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
		p.x, p.y, p.z = tonumber(p.x), tonumber(p.y), tonumber(p.z)
		if teleportee_name then
			teleportee = core.get_player_by_name(teleportee_name)
		end
		if teleportee and p.x and p.y and p.z then
			if teleportee:get_attach() then
				return false, "Can't teleport, player is attached to an object!"
			end
			teleportee:set_pos(p)
			return true, "Teleporting " .. teleportee_name
					.. " to " .. core.pos_to_string(p)
		end

		teleportee = nil
		p = nil
		teleportee_name, target_name = string.match(param, "^([^ ]+) +([^ ]+)$")
		if teleportee_name then
			teleportee = core.get_player_by_name(teleportee_name)
		end
		if target_name then
			local target = core.get_player_by_name(target_name)
			if target then
				p = target:get_pos()
			end
		end
		if teleportee and p then
			if teleportee:get_attach() then
				return false, "Can't teleport, player is attached to an object!"
			end
			p = find_free_position_near(p)
			teleportee:set_pos(p)
			return true, "Teleporting " .. teleportee_name
					.. " to " .. target_name
					.. " at " .. core.pos_to_string(p)
		end

		return false, 'Invalid parameters ("' .. param
				.. '") or player not found (see /help teleport)'
	end,
})

core.register_chatcommand("set", {
	params = "([-n] <name> <value>) | <name>",
	description = "Set or read server configuration setting",
	privs = {server=true},
	func = function(name, param)
		local arg, setname, setvalue = string.match(param, "(-[n]) ([^ ]+) (.+)")
		if arg and arg == "-n" and setname and setvalue then
			core.settings:set(setname, setvalue)
			return true, setname .. " = " .. setvalue
		end

		setname, setvalue = string.match(param, "([^ ]+) (.+)")
		if setname and setvalue then
			if not core.settings:get(setname) then
				return false, "Failed. Use '/set -n <name> <value>' to create a new setting."
			end
			core.settings:set(setname, setvalue)
			return true, setname .. " = " .. setvalue
		end

		setname = string.match(param, "([^ ]+)")
		if setname then
			setvalue = core.settings:get(setname)
			if not setvalue then
				setvalue = "<not set>"
			end
			return true, setname .. " = " .. setvalue
		end

		return false, "Invalid parameters (see /help set)."
	end,
})

local function emergeblocks_callback(pos, action, num_calls_remaining, ctx)
	if ctx.total_blocks == 0 then
		ctx.total_blocks   = num_calls_remaining + 1
		ctx.current_blocks = 0
	end
	ctx.current_blocks = ctx.current_blocks + 1

	if ctx.current_blocks == ctx.total_blocks then
		core.chat_send_player(ctx.requestor_name,
			string.format("Finished emerging %d blocks in %.2fms.",
			ctx.total_blocks, (os.clock() - ctx.start_time) * 1000))
	end
end

local function emergeblocks_progress_update(ctx)
	if ctx.current_blocks ~= ctx.total_blocks then
		core.chat_send_player(ctx.requestor_name,
			string.format("emergeblocks update: %d/%d blocks emerged (%.1f%%)",
			ctx.current_blocks, ctx.total_blocks,
			(ctx.current_blocks / ctx.total_blocks) * 100))

		core.after(2, emergeblocks_progress_update, ctx)
	end
end

core.register_chatcommand("emergeblocks", {
	params = "(here [<radius>]) | (<pos1> <pos2>)",
	description = "Load (or, if nonexistent, generate) map blocks "
		.. "contained in area pos1 to pos2 (<pos1> and <pos2> must be in parentheses)",
	privs = {server=true},
	func = function(name, param)
		local p1, p2 = parse_range_str(name, param)
		if p1 == false then


context:
space:
mode: