aboutsummaryrefslogtreecommitdiff
path: root/src/guiEngine.h
diff options
context:
space:
mode:
authorparamat <paramat@users.noreply.github.com>2017-06-12 17:53:17 +0100
committerparamat <mat.gregory@virginmedia.com>2017-06-15 00:38:08 +0100
commitf55816f93a8d80371878a5292f4f432e90dcc582 (patch)
treebe28c92bbc7ccb263e71c2079eeecce4cb8ccd06 /src/guiEngine.h
parentbbe3dd9a7a3fc0f17a6ab61c70d9ea95962915df (diff)
downloadminetest-f55816f93a8d80371878a5292f4f432e90dcc582.tar.gz
minetest-f55816f93a8d80371878a5292f4f432e90dcc582.tar.bz2
minetest-f55816f93a8d80371878a5292f4f432e90dcc582.zip
Mgv6 mudflow: Avoid partially removed stacked decorations
Recently we started to remove decorations if the dirt below was flowed away, but this did not check for stacked decorations, causing them to have only their lowest node removed. Also, placed mud could partially bury stacked decorations. Remove 'old_is_water' bool which on testing is never true. Add new function 'moveMud()' to reduce indentation. Remove stacked decoration nodes above a removed decoration. Remove stacked decorations partially buried in placed mud.
Diffstat (limited to 'src/guiEngine.h')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 08:29:30 +0000
>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 
-- Minetest: builtin/misc_register.lua

--
-- Make raw registration functions inaccessible to anyone except this file
--

local register_item_raw = core.register_item_raw
core.register_item_raw = nil

local register_alias_raw = core.register_alias_raw
core.register_alias_raw = nil

--
-- Item / entity / ABM registration functions
--

core.registered_abms = {}
core.registered_entities = {}
core.registered_items = {}
core.registered_nodes = {}
core.registered_craftitems = {}
core.registered_tools = {}
core.registered_aliases = {}

-- For tables that are indexed by item name:
-- If table[X] does not exist, default to table[core.registered_aliases[X]]
local alias_metatable = {
	__index = function(t, name)
		return rawget(t, core.registered_aliases[name])
	end
}
setmetatable(core.registered_items, alias_metatable)
setmetatable(core.registered_nodes, alias_metatable)
setmetatable(core.registered_craftitems, alias_metatable)
setmetatable(core.registered_tools, alias_metatable)

-- These item names may not be used because they would interfere
-- with legacy itemstrings
local forbidden_item_names = {
	MaterialItem = true,
	MaterialItem2 = true,
	MaterialItem3 = true,
	NodeItem = true,
	node = true,
	CraftItem = true,
	craft = true,
	MBOItem = true,
	ToolItem = true,
	tool = true,
}

local function check_modname_prefix(name)
	if name:sub(1,1) == ":" then
		-- If the name starts with a colon, we can skip the modname prefix
		-- mechanism.
		return name:sub(2)
	else
		-- Enforce that the name starts with the correct mod name.
		local expected_prefix = core.get_current_modname() .. ":"
		if name:sub(1, #expected_prefix) ~= expected_prefix then
			error("Name " .. name .. " does not follow naming conventions: " ..
				"\"" .. expected_prefix .. "\" or \":\" prefix required")
		end
		
		-- Enforce that the name only contains letters, numbers and underscores.
		local subname = name:sub(#expected_prefix+1)
		if subname:find("[^%w_]") then
			error("Name " .. name .. " does not follow naming conventions: " ..
				"contains unallowed characters")
		end
		
		return name
	end
end

function core.register_abm(spec)
	-- Add to core.registered_abms
	core.registered_abms[#core.registered_abms+1] = spec
	spec.mod_origin = core.get_current_modname() or "??"
end

function core.register_entity(name, prototype)
	-- Check name
	if name == nil then
		error("Unable to register entity: Name is nil")
	end
	name = check_modname_prefix(tostring(name))

	prototype.name = name
	prototype.__index = prototype  -- so that it can be used as a metatable

	-- Add to core.registered_entities
	core.registered_entities[name] = prototype
	prototype.mod_origin = core.get_current_modname() or "??"
end

function core.register_item(name, itemdef)
	-- Check name
	if name == nil then
		error("Unable to register item: Name is nil")
	end
	name = check_modname_prefix(tostring(name))
	if forbidden_item_names[name] then
		error("Unable to register item: Name is forbidden: " .. name)
	end
	itemdef.name = name

	-- Apply defaults and add to registered_* table
	if itemdef.type == "node" then
		-- Use the nodebox as selection box if it's not set manually
		if itemdef.drawtype == "nodebox" and not itemdef.selection_box then
			itemdef.selection_box = itemdef.node_box
		elseif itemdef.drawtype == "fencelike" and not itemdef.selection_box then
			itemdef.selection_box = {
				type = "fixed",
				fixed = {-1/8, -1/2, -1/8, 1/8, 1/2, 1/8},
			}
		end
		setmetatable(itemdef, {__index = core.nodedef_default})
		core.registered_nodes[itemdef.name] = itemdef
	elseif itemdef.type == "craft" then
		setmetatable(itemdef, {__index = core.craftitemdef_default})
		core.registered_craftitems[itemdef.name] = itemdef
	elseif itemdef.type == "tool" then
		setmetatable(itemdef, {__index = core.tooldef_default})
		core.registered_tools[itemdef.name] = itemdef
	elseif itemdef.type == "none" then
		setmetatable(itemdef, {__index = core.noneitemdef_default})
	else
		error("Unable to register item: Type is invalid: " .. dump(itemdef))
	end

	-- Flowing liquid uses param2
	if itemdef.type == "node" and itemdef.liquidtype == "flowing" then
		itemdef.paramtype2 = "flowingliquid"
	end

	-- BEGIN Legacy stuff
	if itemdef.cookresult_itemstring ~= nil and itemdef.cookresult_itemstring ~= "" then
		core.register_craft({
			type="cooking",
			output=itemdef.cookresult_itemstring,
			recipe=itemdef.name,
			cooktime=itemdef.furnace_cooktime
		})
	end
	if itemdef.furnace_burntime ~= nil and itemdef.furnace_burntime >= 0 then
		core.register_craft({
			type="fuel",
			recipe=itemdef.name,
			burntime=itemdef.furnace_burntime
		})
	end
	-- END Legacy stuff

	itemdef.mod_origin = core.get_current_modname() or "??"

	-- Disable all further modifications
	getmetatable(itemdef).__newindex = {}

	--core.log("Registering item: " .. itemdef.name)
	core.registered_items[itemdef.name] = itemdef
	core.registered_aliases[itemdef.name] = nil
	register_item_raw(itemdef)
end

function core.register_node(name, nodedef)
	nodedef.type = "node"
	core.register_item(name, nodedef)
end

function core.register_craftitem(name, craftitemdef)
	craftitemdef.type = "craft"

	-- BEGIN Legacy stuff
	if craftitemdef.inventory_image == nil and craftitemdef.image ~= nil then
		craftitemdef.inventory_image = craftitemdef.image
	end
	-- END Legacy stuff

	core.register_item(name, craftitemdef)
end

function core.register_tool(name, tooldef)
	tooldef.type = "tool"
	tooldef.stack_max = 1

	-- BEGIN Legacy stuff
	if tooldef.inventory_image == nil and tooldef.image ~= nil then
		tooldef.inventory_image = tooldef.image
	end
	if tooldef.tool_capabilities == nil and
	   (tooldef.full_punch_interval ~= nil or
	    tooldef.basetime ~= nil or
	    tooldef.dt_weight ~= nil or
	    tooldef.dt_crackiness ~= nil or
	    tooldef.dt_crumbliness ~= nil or
	    tooldef.dt_cuttability ~= nil or
	    tooldef.basedurability ~= nil or
	    tooldef.dd_weight ~= nil or
	    tooldef.dd_crackiness ~= nil or
	    tooldef.dd_crumbliness ~= nil or
	    tooldef.dd_cuttability ~= nil) then
		tooldef.tool_capabilities = {
			full_punch_interval = tooldef.full_punch_interval,
			basetime = tooldef.basetime,
			dt_weight = tooldef.dt_weight,
			dt_crackiness = tooldef.dt_crackiness,
			dt_crumbliness = tooldef.dt_crumbliness,
			dt_cuttability = tooldef.dt_cuttability,
			basedurability = tooldef.basedurability,
			dd_weight = tooldef.dd_weight,
			dd_crackiness = tooldef.dd_crackiness,
			dd_crumbliness = tooldef.dd_crumbliness,
			dd_cuttability = tooldef.dd_cuttability,
		}
	end
	-- END Legacy stuff

	core.register_item(name, tooldef)
end

function core.register_alias(name, convert_to)
	if forbidden_item_names[name] then
		error("Unable to register alias: Name is forbidden: " .. name)
	end
	if core.registered_items[name] ~= nil then
		core.log("warning", "Not registering alias, item with same name" ..
			" is already defined: " .. name .. " -> " .. convert_to)
	else
		--core.log("Registering alias: " .. name .. " -> " .. convert_to)
		core.registered_aliases[name] = convert_to
		register_alias_raw(name, convert_to)
	end
end

function core.on_craft(itemstack, player, old_craft_list, craft_inv)
	for _, func in ipairs(core.registered_on_crafts) do
		itemstack = func(itemstack, player, old_craft_list, craft_inv) or itemstack
	end
	return itemstack
end

function core.craft_predict(itemstack, player, old_craft_list, craft_inv)
	for _, func in ipairs(core.registered_craft_predicts) do
		itemstack = func(itemstack, player, old_craft_list, craft_inv) or itemstack
	end
	return itemstack
end

-- Alias the forbidden item names to "" so they can't be
-- created via itemstrings (e.g. /give)
local name
for name in pairs(forbidden_item_names) do
	core.registered_aliases[name] = ""
	register_alias_raw(name, "")
end


-- Deprecated:
-- Aliases for core.register_alias (how ironic...)
--core.alias_node = core.register_alias
--core.alias_tool = core.register_alias
--core.alias_craftitem = core.register_alias

--
-- Built-in node definitions. Also defined in C.
--

core.register_item(":unknown", {
	type = "none",
	description = "Unknown Item",
	inventory_image = "unknown_item.png",
	on_place = core.item_place,
	on_secondary_use = core.item_secondary_use,
	on_drop = core.item_drop,
	groups = {not_in_creative_inventory=1},
	diggable = true,
})

core.register_node(":air", {
	description = "Air (you hacker you!)",
	inventory_image = "unknown_node.png",
	wield_image = "unknown_node.png",
	drawtype = "airlike",
	paramtype = "light",
	sunlight_propagates = true,
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true,
	floodable = true,
	air_equivalent = true,
	drop = "",
	groups = {not_in_creative_inventory=1},
})

core.register_node(":ignore", {
	description = "Ignore (you hacker you!)",
	inventory_image = "unknown_node.png",
	wield_image = "unknown_node.png",
	drawtype = "airlike",
	paramtype = "none",
	sunlight_propagates = false,
	walkable = false,
	pointable = false,
	diggable = false,
	buildable_to = true, -- A way to remove accidentally placed ignores
	air_equivalent = true,
	drop = "",
	groups = {not_in_creative_inventory=1},
})

-- The hand (bare definition)
core.register_item(":", {
	type = "none",
	groups = {not_in_creative_inventory=1},
})


function core.override_item(name, redefinition)
	if redefinition.name ~= nil then
		error("Attempt to redefine name of "..name.." to "..dump(redefinition.name), 2)
	end
	if redefinition.type ~= nil then
		error("Attempt to redefine type of "..name.." to "..dump(redefinition.type), 2)
	end
	local item = core.registered_items[name]
	if not item then
		error("Attempt to override non-existent item "..name, 2)
	end
	for k, v in pairs(redefinition) do
		rawset(item, k, v)
	end
	register_item_raw(item)
end


core.callback_origins = {}

function core.run_callbacks(callbacks, mode, ...)
	assert(type(callbacks) == "table")
	local cb_len = #callbacks
	if cb_len == 0 then
		if mode == 2 or mode == 3 then
			return true
		elseif mode == 4 or mode == 5 then
			return false
		end
	end
	local ret = nil
	for i = 1, cb_len do
		local origin = core.callback_origins[callbacks[i]]
		if origin then
			core.set_last_run_mod(origin.mod)
			--print("Running " .. tostring(callbacks[i]) ..
			--	" (a " .. origin.name .. " callback in " .. origin.mod .. ")")
		else
			--print("No data associated with callback")
		end
		local cb_ret = callbacks[i](...)

		if mode == 0 and i == 1 then
			ret = cb_ret
		elseif mode == 1 and i == cb_len then
			ret = cb_ret
		elseif mode == 2 then
			if not cb_ret or i == 1 then
				ret = cb_ret
			end
		elseif mode == 3 then
			if cb_ret then
				return cb_ret
			end
			ret = cb_ret
		elseif mode == 4 then
			if (cb_ret and not ret) or i == 1 then
				ret = cb_ret
			end
		elseif mode == 5 and cb_ret then
			return cb_ret
		end
	end
	return ret
end

--
-- Callback registration
--

local function make_registration()
	local t = {}
	local registerfunc = function(func)
		table.insert(t, func)
		core.callback_origins[func] = {
			mod = core.get_current_modname() or "??",
			name = debug.getinfo(1, "n").name or "??"
		}
		--local origin = core.callback_origins[func]
		--print(origin.name .. ": " .. origin.mod .. " registering cbk " .. tostring(func))
	end
	return t, registerfunc
end

local function make_registration_reverse()
	local t = {}
	local registerfunc = function(func)
		table.insert(t, 1, func)
		core.callback_origins[func] = {
			mod = core.get_current_modname() or "??",
			name = debug.getinfo(1, "n").name or "??"
		}
		--local origin = core.callback_origins[func]
		--print(origin.name .. ": " .. origin.mod .. " registering cbk " .. tostring(func))
	end
	return t, registerfunc
end

local function make_registration_wrap(reg_fn_name, clear_fn_name)
	local list = {}

	local orig_reg_fn = core[reg_fn_name]
	core[reg_fn_name] = function(def)
		local retval = orig_reg_fn(def)
		if retval ~= nil then
			if def.name ~= nil then
				list[def.name] = def
			else
				list[retval] = def
			end
		end
		return retval
	end

	local orig_clear_fn = core[clear_fn_name]
	core[clear_fn_name] = function()
		for k in pairs(list) do
			list[k] = nil
		end
		return orig_clear_fn()
	end

	return list
end

core.registered_on_player_hpchanges = { modifiers = { }, loggers = { } }

function core.registered_on_player_hpchange(player, hp_change)
	local last = false
	for i = #core.registered_on_player_hpchanges.modifiers, 1, -1 do
		local func = core.registered_on_player_hpchanges.modifiers[i]
		hp_change, last = func(player, hp_change)
		if type(hp_change) ~= "number" then
			local debuginfo = debug.getinfo(func)
			error("The register_on_hp_changes function has to return a number at " ..
				debuginfo.short_src .. " line " .. debuginfo.linedefined)
		end
		if last then
			break
		end
	end
	for i, func in ipairs(core.registered_on_player_hpchanges.loggers) do
		func(player, hp_change)
	end
	return hp_change
end

function core.register_on_player_hpchange(func, modifier)
	if modifier then
		table.insert(core.registered_on_player_hpchanges.modifiers, func)
	else
		table.insert(core.registered_on_player_hpchanges.loggers, func)
	end
	core.callback_origins[func] = {
		mod = core.get_current_modname() or "??",
		name = debug.getinfo(1, "n").name or "??"
	}
end

core.registered_biomes      = make_registration_wrap("register_biome",      "clear_registered_biomes")
core.registered_ores        = make_registration_wrap("register_ore",        "clear_registered_ores")
core.registered_decorations = make_registration_wrap("register_decoration", "clear_registered_decorations")

core.registered_on_chat_messages, core.register_on_chat_message = make_registration()
core.registered_globalsteps, core.register_globalstep = make_registration()
core.registered_playerevents, core.register_playerevent = make_registration()
core.registered_on_shutdown, core.register_on_shutdown = make_registration()
core.registered_on_punchnodes, core.register_on_punchnode = make_registration()
core.registered_on_placenodes, core.register_on_placenode = make_registration()
core.registered_on_dignodes, core.register_on_dignode = make_registration()
core.registered_on_generateds, core.register_on_generated = make_registration()
core.registered_on_newplayers, core.register_on_newplayer = make_registration()
core.registered_on_dieplayers, core.register_on_dieplayer = make_registration()
core.registered_on_respawnplayers, core.register_on_respawnplayer = make_registration()
core.registered_on_prejoinplayers, core.register_on_prejoinplayer = make_registration()
core.registered_on_joinplayers, core.register_on_joinplayer = make_registration()
core.registered_on_leaveplayers, core.register_on_leaveplayer = make_registration()
core.registered_on_player_receive_fields, core.register_on_player_receive_fields = make_registration_reverse()
core.registered_on_cheats, core.register_on_cheat = make_registration()
core.registered_on_crafts, core.register_on_craft = make_registration()
core.registered_craft_predicts, core.register_craft_predict = make_registration()
core.registered_on_protection_violation, core.register_on_protection_violation = make_registration()
core.registered_on_item_eats, core.register_on_item_eat = make_registration()
core.registered_on_punchplayers, core.register_on_punchplayer = make_registration()

--
-- Compatibility for on_mapgen_init()
--

core.register_on_mapgen_init = function(func) func(core.get_mapgen_params()) end
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 08:29:30 +0000