feat: implement monster respawn in Grimvale (opentibiabr#2228)

• Adds logic for monster respawn in a specific area
• Day-based configuration to determine which monsters to respawn
• Event registered to occur at server startup
• Removing custom and duplicate spawns

data-otservbr-global/scripts/globalevents/others/raids_schedule.lua

@@ -0,0 +1,53 @@
+local raidSchedule = {
+	["Tuesday"] = {
+		["16:00"] = { raidName = "Midnight Panther" },
+	},
+	["Wednesday"] = {
+		["12:00"] = { raidName = "Draptor" },
+	},
+	["Thursday"] = {
+		["19:00"] = { raidName = "Undead Cavebear" },
+	},
+	["Friday"] = {
+		["06:00"] = { raidName = "Titanica" },
+	},
+	["Saturday"] = {
+		["20:00"] = { raidName = "Draptor" },
+	},
+	["Sunday"] = {
+		["15:00"] = { raidName = "Midnight Panther" },
+		["13:00"] = { raidName = "Orc Backpack" },
+	},
+	["31/10"] = {
+		["16:00"] = { raidName = "Halloween Hare" },
+	},
+}
+
+local spawnRaidsEvent = GlobalEvent("SpawnRaidsEvent")
+
+function spawnRaidsEvent.onThink(interval, lastExecution, thinkInterval)
+	local currentDayOfWeek, currentDate = os.date("%A"), getRealDate()
+	local raidsToSpawn = {}
+
+	if raidSchedule[currentDayOfWeek] then
+		raidsToSpawn[#raidsToSpawn + 1] = raidSchedule[currentDayOfWeek]
+	end
+
+	if raidSchedule[currentDate] then
+		raidsToSpawn[#raidsToSpawn + 1] = raidSchedule[currentDate]
+	end
+
+	if #raidsToSpawn > 0 then
+		for i = 1, #raidsToSpawn do
+			local currentRaidSchedule = raidsToSpawn[i][getRealTime()]
+			if currentRaidSchedule and not currentRaidSchedule.alreadyExecuted then
+				Game.startRaid(currentRaidSchedule.raidName)
+				currentRaidSchedule.alreadyExecuted = true
+			end
+		end
+	end
+	return true
+end
+
+spawnRaidsEvent:interval(60000)
+spawnRaidsEvent:register()

data-otservbr-global/scripts/world_changes/grimvale_respawn_event.lua

@@ -0,0 +1,40 @@
+local grimvaleConfig = {
+	position = { fromPosition = Position(33330, 31670, 7), toPosition = Position(33350, 31690, 7) },
+	spawnDay = 13,
+}
+
+local function createRandomMonster(position, availableMonsters)
+	local tile = Tile(position)
+	if not tile or tile:getItemById(486) or tile:hasProperty(CONST_PROP_BLOCKSOLID) or tile:getTopCreature() then
+		return false
+	end
+
+	local monsterName = availableMonsters[math.random(#availableMonsters)]
+	local monster = Game.createMonster(monsterName, position)
+	if monster then
+		monster:setSpawnPosition()
+		monster:remove()
+	end
+	return true
+end
+
+local function spawnMonsters(monstersToSpawn)
+	for x = grimvaleConfig.position.fromPosition.x, grimvaleConfig.position.toPosition.x do
+		for y = grimvaleConfig.position.fromPosition.y, grimvaleConfig.position.toPosition.y do
+			if math.random(1000) >= 983 then
+				if createRandomMonster(Position(x, y, 7), monstersToSpawn) then
+					break
+				end
+			end
+		end
+	end
+end
+
+local grimvaleRespawnEvent = GlobalEvent("GrimvaleRespawnEvent")
+
+function grimvaleRespawnEvent.onStartup()
+	spawnMonsters(grimvaleConfig.spawnDay == tonumber(os.date("%d")) and { "wereboar", "werebadger" } or { "bandit", "badger", "blue butterfly", "yellow butterfly" })
+	return true
+end
+
+grimvaleRespawnEvent:register()