core: some fixes

ReplicatedStorage/Shared/ChunkManager/init.lua

@@ -13,6 +13,7 @@ local Globals = require(script.Parent:WaitForChild("Globals"))
 
 local remote = game:GetService("ReplicatedStorage"):WaitForChild("RecieveChunkPacket")
 local tickremote = game:GetService("ReplicatedStorage"):WaitForChild("Tick")
+local Players = game:GetService("Players")
 
 local ChunkFolder = Instance.new("Folder")
 ChunkFolder.Name = "$blockscraft_client"
@@ -23,7 +24,7 @@ local CHUNK_RADIUS = Globals.RenderDistance or 5
 local LOAD_BATCH = Globals.LoadBatch or 8
 local RESYNC_INTERVAL = Globals.ResyncInterval or 5
 local RESYNC_RADIUS = Globals.ResyncRadius or 2
-local DEBUG_RESYNC = true
+local DEBUG_RESYNC = false
 local FORCELOAD_CHUNKS = {
 	{0, 1, 0}
 }
@@ -35,7 +36,11 @@ local lastChunkKey: string? = nil
 local lastHeavyTick = 0
 local HEAVY_TICK_INTERVAL = 1.5
 local lastUnloadSweep = 0
-local UNLOAD_SWEEP_INTERVAL = 1.5
+local UNLOAD_SWEEP_INTERVAL = 3 -- slower sweep cadence
+local MAX_LOADED_CHUNKS = 0
+local SPAWN_CHUNK_KEY: string? = nil
+local playerFrozen = false
+local storedMovementState = nil
 
 local function worldToChunkCoord(v: number): number
 	return math.floor((v + 16) / 32)
@@ -53,6 +58,11 @@ do
 	table.sort(CHUNK_OFFSETS, function(a, b)
 		return a[4] < b[4]
 	end)
+	MAX_LOADED_CHUNKS = math.max(1, math.floor(#CHUNK_OFFSETS * 2)) -- tighter cap than full render cube
+	if FORCELOAD_CHUNKS[1] then
+		local forced = FORCELOAD_CHUNKS[1]
+		SPAWN_CHUNK_KEY = `{forced[1]},{forced[2]},{forced[3]}`
+	end
 end
 
 function ChunkManager:UnloadAllNow()
@@ -77,6 +87,126 @@ local function Swait(l)
 	end
 end
 
+local function setCharacterFrozen(shouldFreeze: boolean)
+	local player = Players.LocalPlayer
+	if not player then
+		return
+	end
+	local character = player.Character
+	if not character then
+		return
+	end
+	local humanoid = character:FindFirstChildOfClass("Humanoid")
+	local root = character:FindFirstChild("HumanoidRootPart")
+	if not humanoid or not root then
+		return
+	end
+	if shouldFreeze == playerFrozen then
+		return
+	end
+	if shouldFreeze then
+		if not storedMovementState then
+			storedMovementState = {
+				walkSpeed = humanoid.WalkSpeed,
+				autoRotate = humanoid.AutoRotate,
+			}
+			if humanoid.UseJumpPower then
+				storedMovementState.jumpPower = humanoid.JumpPower
+			else
+				storedMovementState.jumpHeight = humanoid.JumpHeight
+			end
+		end
+		humanoid.AutoRotate = false
+		humanoid.WalkSpeed = 0
+		if humanoid.UseJumpPower then
+			humanoid.JumpPower = 0
+		else
+			humanoid.JumpHeight = 0
+		end
+		root.Anchored = true
+	else
+		root.Anchored = false
+		if storedMovementState then
+			humanoid.AutoRotate = storedMovementState.autoRotate
+			humanoid.WalkSpeed = storedMovementState.walkSpeed
+			if humanoid.UseJumpPower and storedMovementState.jumpPower then
+				humanoid.JumpPower = storedMovementState.jumpPower
+			elseif storedMovementState.jumpHeight then
+				humanoid.JumpHeight = storedMovementState.jumpHeight
+			end
+		end
+		storedMovementState = nil
+	end
+	playerFrozen = shouldFreeze
+end
+
+local function getLocalPlayerChunkPos()
+	local player = Players.LocalPlayer
+	if not player then
+		return nil
+	end
+	local character = player.Character
+	if not character then
+		return nil
+	end
+	local root = character:FindFirstChild("HumanoidRootPart")
+	if not root then
+		return nil
+	end
+	local pos = root.Position
+	return {
+		x = worldToChunkCoord(pos.X),
+		y = worldToChunkCoord(pos.Y),
+		z = worldToChunkCoord(pos.Z)
+	}
+end
+
+local function isWithinRenderDistance(chunkPos: Vector3, centerChunkPos): boolean
+	if not centerChunkPos then
+		return false
+	end
+	return math.abs(chunkPos.X - centerChunkPos.x) <= CHUNK_RADIUS
+		and math.abs(chunkPos.Y - centerChunkPos.y) <= CHUNK_RADIUS
+		and math.abs(chunkPos.Z - centerChunkPos.z) <= CHUNK_RADIUS
+end
+
+local function shouldSkipUnload(key: string): boolean
+	return SPAWN_CHUNK_KEY ~= nil and key == SPAWN_CHUNK_KEY
+end
+
+local function scheduleChunkUnload(key: string, chunk)
+	if not chunk or unloadingChunks[key] then
+		return
+	end
+	unloadingChunks[key] = true
+	task.defer(function()
+		chunk:Unload()
+		chunk:Destroy()
+		Chunk.AllChunks[key] = nil
+		unloadingChunks[key] = nil
+	end)
+end
+
+local function evictOutOfRangeChunks(centerChunkPos)
+	if not centerChunkPos then
+		return
+	end
+	local loadedCount = 0
+	for key, loadedChunk in pairs(Chunk.AllChunks) do
+		if loadedChunk.loaded and not shouldSkipUnload(key) then
+			local inRange = isWithinRenderDistance(loadedChunk.pos, centerChunkPos)
+			if inRange then
+				loadedCount += 1
+				if loadedCount > MAX_LOADED_CHUNKS then
+					scheduleChunkUnload(key, loadedChunk)
+				end
+			else
+				scheduleChunkUnload(key, loadedChunk)
+			end
+		end
+	end
+end
+
 function ChunkManager:GetChunk(x, y, z)
 	local key = `{x},{y},{z}`
 	if Chunk.AllChunks[key] then
@@ -112,7 +242,10 @@ local function ensureNeighboringChunksLoaded(x, y, z)
 
 	for _, offset in ipairs(offsets) do
 		local nx, ny, nz = x + offset[1], y + offset[2], z + offset[3]
-		ChunkManager:GetChunk(nx, ny, nz):Tick()
+		local neighbor = ChunkManager:GetChunk(nx, ny, nz)
+		if neighbor then
+			neighbor:Tick()
+		end
 	end
 end
 
@@ -136,6 +269,7 @@ function ChunkManager:LoadChunk(x, y, z)
 		chunk.instance = instance
 		chunk.loaded = true
 		unloadingChunks[key] = nil
+		evictOutOfRangeChunks(getLocalPlayerChunkPos())
 	end)
 end
 
@@ -251,7 +385,7 @@ end
 
 function ChunkManager:Tick()
 	ChunkManager:ForceTick()
-	local player = game:GetService("Players").LocalPlayer
+	local player = Players.LocalPlayer
 	if not player.Character then
 		return
 	end
@@ -263,6 +397,7 @@ function ChunkManager:Tick()
 		z = worldToChunkCoord(pos.Z)
 	}
 	local ck = `{chunkPos.x},{chunkPos.y},{chunkPos.z}`
+	local currentChunk = Chunk.AllChunks[ck]
 	local now = tick()
 	local shouldHeavyTick = (ck ~= lastChunkKey) or (now - lastHeavyTick >= HEAVY_TICK_INTERVAL)
 	lastChunkKey = ck
@@ -270,26 +405,29 @@ function ChunkManager:Tick()
 		lastHeavyTick = now
 	end
 
+	setCharacterFrozen(not (currentChunk and currentChunk.loaded))
+
 	if shouldHeavyTick then
 		task.defer(function()
 			local processed = 0
 			for _, offset in ipairs(CHUNK_OFFSETS) do
 				local cx, cy, cz = chunkPos.x + offset[1], chunkPos.y + offset[2], chunkPos.z + offset[3]
 				local chunk = ChunkManager:GetChunk(cx, cy, cz)
-				chunk.inhabitedTime = now
-				if not chunk.loaded then
-					ChunkManager:LoadChunk(cx, cy, cz)
-					processed += 1
-					if processed % LOAD_BATCH == 0 then
-						Swait(1)
+				if chunk then
+					chunk.inhabitedTime = now
+					if not chunk.loaded then
+						ChunkManager:LoadChunk(cx, cy, cz)
+						processed += 1
+						if processed % LOAD_BATCH == 0 then
+							Swait(1)
+						end
 					end
 				end
 			end
 		end)
 	else
-		local current = Chunk.AllChunks[ck]
-		if current then
-			current.inhabitedTime = now
+		if currentChunk then
+			currentChunk.inhabitedTime = now
 		end
 	end
 	
@@ -318,14 +456,8 @@ function ChunkManager:Tick()
 	if now - lastUnloadSweep >= UNLOAD_SWEEP_INTERVAL then
 		lastUnloadSweep = now
 		for key, loadedChunk in pairs(Chunk.AllChunks) do
-			if now - loadedChunk.inhabitedTime > 15 and not unloadingChunks[key] then
-				unloadingChunks[key] = true
-				task.defer(function()
-					loadedChunk:Unload()
-					loadedChunk:Destroy()
-					Chunk.AllChunks[key] = nil
-					unloadingChunks[key] = nil
-				end)
+			if now - loadedChunk.inhabitedTime > 30 and not unloadingChunks[key] and not shouldSkipUnload(key) then -- keep chunks around longer before unloading
+				scheduleChunkUnload(key, loadedChunk)
 			end
 		end
 	end

ReplicatedStorage/Shared/PlacementManager.lua

@@ -6,7 +6,7 @@ local PlacementManager = {}
 local ChunkManager = require("./ChunkManager")
 local Util = require("./Util")
 
-local DEBUG_PLACEMENT = true
+local DEBUG_PLACEMENT = false
 local function debugPlacementLog(...: any)
 	if DEBUG_PLACEMENT then
 		Util.StudioLog(...)

ReplicatedStorage/Shared/Util.lua

@@ -1,18 +1,19 @@
 local RunService = game:GetService("RunService")
 local IS_STUDIO = RunService:IsStudio()
+local ENABLE_STUDIO_LOG = false
 
 local module = {}
 
 -- Prints only when running in Studio (avoids noisy live logs)
 function module.StudioLog(...: any)
-	if not IS_STUDIO then
+	if not IS_STUDIO or not ENABLE_STUDIO_LOG then
 		return
 	end
 	print(...)
 end
 
 function module.StudioWarn(...: any)
-	if not IS_STUDIO then
+	if not IS_STUDIO or not ENABLE_STUDIO_LOG then
 		return
 	end
 	warn(...)