Shatur

The author managed to run LUnix on an NES without tricks, like embedding a Raspberry Pi into the cartridge.

The author managed to run LUnix on an NES without tricks, like embedding a Raspberry Pi into the cartridge.

Boolean operations in 3D are quite heavy. But fortunately, each wall can be represented as two 2D planes.

To determine which 2D shape I need to cut from the mentioned planes, I add a special plane in Blender with "Cutout" name. This is what The Sims series do.

And for all doors located on a wall I triangulate combined vertices using earcutr. The library API doesn't fit well with Bevy, but it does the trick.

This is for my open source life simulation game made with Bevy under the working title Project Harmonia.

Boolean operations in 3D are quite heavy. But fortunately, each wall can be represented as two 2D planes.

To determine which 2D shape I need to cut from the mentioned planes, I add a special plane in Blender with "Cutout" name. This is what The Sims series do.

And for all doors located on a wall I triangulate combined vertices using earcutr. The library API doesn't fit well with Bevy, but it does the trick.

The project is open source, so if you are interested in the implementation, you can take a look at the wall module. I organize my modules as plugins, so you can copy the module and its submodules into your game with some minor edits and enable WallPlugin.

I working on an open source life simulation game with the working title Project Harmonia using Bevy.

Now walls are separate meshes and take full advantage of ECS, including change detection to rebuild only changed parts.

The new approach also automatically fixed some bugs and enabled instant update of other walls that were affected by currently spawning wall.

Now walls are separate meshes and take full advantage of ECS, including change detection to rebuild only changed parts.

The new approach also automatically fixed some bugs and enabled instant update of other walls that were affected by currently spawning wall.

I working on an open source life simulation game with the working title Project Harmonia using Bevy.

It was an interesting task and I learned a lot about how meshes are represented internally.

Initially I used 8 vertices for each wall. But then I discovered that if I needed a different color and normal for each side, then I needed a different vertex! So I reworked the mesh generation to make 20 vertices per mesh (for each side with no bottom).

I working on an open source life simulation game with the working title Project Harmonia using Bevy.

It was an interesting task and I learned a lot about how meshes are represented internally.

Initially I used 8 vertices for each wall. But then I discovered that if I needed a different color and normal for each side, then I needed a different vertex! So I reworked the mesh generation to make 20 vertices per mesh (for each side with no bottom).

It was an interesting task and I learned a lot about how meshes are represented internally.

Initially I used 8 vertices for each wall. But then I discovered that if I needed a different color and normal for each side, then I needed a different vertex! So I reworked the mesh generation to make 20 vertices per mesh (for each side with no bottom).

The project is open source, so if you are interested in the implementation, you can take a look at mesh_update_system. I organize my modules as plugins, so you can copy the module and its submodules into your game with some minor edits and enable WallPlugin.