TC Light Overlay

TC Light Overlay is a utility add-on for Minecraft Bedrock that displays real-time light levels and mob spawning conditions on the ground.

Support and Links:

• Ko-fi: https://ko-fi.com/toancao
• YouTube: https://www.youtube.com/@toancaomc

Screenshots

Settings Menu

Monster Spawner Detection (Blue Markers)

Floating Text Light Level Numbers

Dark Areas and Spawn Danger

Installation

1. Download the .mcaddon file.
2. Open the file to import it into Minecraft Bedrock.
3. Apply both the Behavior Pack and Resource Pack to your world.
4. Enable "Beta APIs" in your World Settings under Experiments if required by your game version.

How to Use

• Hold a torch or light source item in your main hand or off-hand to activate the overlay.
• To open the settings menu:
  • Type /tc:light in chat, or
  • Sneak and use (right-click / tap) a torch in the air, or
  • Run /scriptevent tc:light.

Marker Colors and Meaning

• Red X: Total darkness (Light level 0). Hostile mobs can spawn at any time, day or night.
• Yellow X: Outdoor area (Light level greater than 0 from sky light, but no torches nearby). Safe during the day, but hostile mobs will spawn when it becomes night.
• Green X: Safe zone protected by artificial light sources (torches, lanterns, campfires, etc.). Mobs cannot spawn here.
• Blue X: Monster Spawner area (within 9x9x4 range of a spawner) where the light level is below 12 and the spawner can still trigger.

Features and Settings

Open the menu with /tc:light to configure:

• Trigger Mode:
  • Torch Only: Active only when holding a torch in main-hand or off-hand.
  • Always On: Always display markers without holding any item.
  • Disabled: Turn off the overlay.
• Scan Width: Adjust horizontal scan distance from 4 to 64 blocks.
• Scan Height: Adjust vertical scan distance from 2 to 32 blocks (supports multi-floor buildings, basements, and caves).
• Show Safe Markers: Toggle green markers on or off.
• Show Floating Text: Toggle floating numeric light level indicators above markers.
• Refresh Rate (Performance Mode): Choose from 1 Tick (real-time) to 20 Ticks (1 second) to balance responsiveness and performance.

Important Notes

• In Minecraft 1.18 and newer, natural hostile mobs only spawn at light level 0. Placing torches to bring the light level to 1 or higher is sufficient to prevent natural mob spawns.
• Monster spawners (such as Blaze or standard mob spawners) require a higher light level (up to 12) to be completely disabled.
• If markers do not appear, ensure you are holding a valid light source or set the Trigger Mode to "Always On" in the settings menu.