# BB001 - Must be at least 15 characters
**URL:** https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012
**Category:** Show Your Projects
**Created:** [September 14, 2025, 10:46am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012 "2025-09-14T10:46:34Z")
**Posts on this page:** 15
**Page:** 1
### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [September 14, 2025, 10:46am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/1 "2025-09-14T10:46:34Z")
I created this topic to post progress on a new game I’m working on.
Genre: Roguelike, sandbox, survival, open-world (auto-generated maps)
The game is highly moddable. All game logic is implemented using my own [scripting language](https://github.com/Kagamma/evil-script), and the scripts will be available for users.
It is still in its early stages. I’m currently working on character-world interactions and built-in map editor. See [Watch bb001\_20250914 | Streamable](https://streamable.com/k925h7)
The game currently has no name, “bb001” is just the codename for it 🙂
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### Author:  [@phomm](https://forum.castle-engine.io/u/phomm)
#### Post date: [September 14, 2025, 1:02pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/2 "2025-09-14T13:02:24Z")
Looks promising 👍
keep going !
Will you use here your other projects/ components? like particle emitter? this could be a good real trial for them.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [September 15, 2025, 1:00pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/3 "2025-09-15T13:00:55Z")
Definitely.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [March 3, 2026, 3:10pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/4 "2026-03-03T15:10:16Z")
Things have been moving slowly so I haven’t achieved much recently 🙂 so here’s a small demonstration to show crude implementation of shader-based line of sight / fog of war and x-ray effect when behind other objects.
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### Author:  [@phomm](https://forum.castle-engine.io/u/phomm)
#### Post date: [March 3, 2026, 5:42pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/5 "2026-03-03T17:42:27Z")
Unlit/black tops of cubes look unnatural , compared to everything else is lit..
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [March 4, 2026, 12:23am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/6 "2026-03-04T00:23:54Z")
Backtop belong to the “upper floor” so it will only lit up if the character is on the same floor. I will improve the algorithm so that stuff that can be seen from the lower floor like trees should be lit.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [March 4, 2026, 6:36am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/7 "2026-03-04T06:36:20Z")
Stress test 162 NPCs (can go higher if I zoom-in to avoid overdrawn) with their own light source, line of sight, x-ray, collision detection, and basic AI movement.
In the actual game there will be a maximum of 100 NPCs per map. So this is just to make sure I can still hit 60 FPS on this decade-old laptop when more features are added.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [March 10, 2026, 2:37pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/8 "2026-03-10T14:37:06Z")
Gouraud shading is making a comeback 😃 and it’s honestly making environments look much better than the modern equivalent.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [July 26, 2026, 3:29pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/9 "2026-07-26T15:29:59Z")
Update progress:
- Housing system with multiple floors.
- Trading + Dialogue system.
- Move between areas + randomly generate area if it’s not available yet.
https://www.youtube.com/embed/aydW7KM6ClU?feature=oembed&wmode=opaque
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [July 27, 2026, 9:48am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/10 "2026-07-27T09:48:33Z")
Using shader to show objects behind wall.
https://www.youtube.com/embed/jhz9T6jzYTY?feature=oembed&wmode=opaque
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### Author:  [@DiggiDoggi](https://forum.castle-engine.io/u/DiggiDoggi)
#### Post date: [July 27, 2026, 10:44am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/11 "2026-07-27T10:44:47Z")
In the first video use of the shader was hard to spot. At first I thought “why did they abandon the idea?” So I watched it again to see that the Hero is still visible through the walls. I’m glad you made this second video - It shows the transparency trick very well.
Personally I think you could tone down the highlighted area a bit, or reduce gloss of some materials because they can be very bright.
Looking at the inventory: if the border between cells was thicker, it would help seeing which object is selected. I do understand it’s a draft, though. Also I can’t see the mouse pointer in UI.
Bug report: In the first video, and around 1:42, when you destroy the fireplace light casted by it remains.
From what I see, it’s a game I’d like to play 🙂 Discovery + building = good fun. And I see your solutions are well thought, so I’ll wait for more to come.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [July 27, 2026, 11:36am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/12 "2026-07-27T11:36:33Z")
> Bug report: In the first video, and around 1:42, when you destroy the fireplace light casted by it remains.
The fireplace was not destroy, but instead got hidden by the fog of war.
> In the first video use of the shader was hard to spot.
Well there’re actually 2 ways to hide any objects that block players from seeing their character:
- If the character is inside a room, then the upper floors will be hidden. This was shown in the 1st clip.
- If the character is behind any wall, then a simple shader will be used to modify the alpha value of the wall in screen space. This was shown in the 2nd clip.
> Personally I think you could tone down the highlighted area a bit, or reduce gloss of some materials because they can be very bright.
I will likely roll out my own light system, since the game engine’s default light system is not really suitable for the game.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [September 2, 2026, 5:51am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/13 "2026-09-02T05:51:50Z")
Built-in profiler, which shows function calls and how much time it takes.
A much smoother lighting system
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [September 2, 2026, 9:25am UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/14 "2026-09-02T09:25:59Z")
Thanks to the new built-in profiler, I managed to bring PlayerControlScript:update() down from 0.4ms per frame to less than 0.1ms per frame 😃 , this was done on a 12-year-old laptop so expect much better performance on modern PC.
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### Author:  [@kagamma](https://forum.castle-engine.io/u/kagamma)
#### Post date: [September 19, 2026, 12:35pm UTC](https://forum.castle-engine.io/t/bb001-must-be-at-least-15-characters/2012/15 "2026-09-19T12:35:26Z")
A bit of progress: Objects now change as time goes by (trees grow, food becomes stale, etc)
It was done on a separate thread, including static batching of meshes in the world (the results are then synchronized on the main thread)