# TWA. Interactions in the Orangery mechanic
**Where**: [[DESIGNS/ToyWorldsAtlas/Orangery_Doc|Orangery_Doc]]
## ToDo
- [ ] Research fitting VFX
## Concept
(1) Atlases of the same type interact between each other. Each type interacts with its type in a same way which is different from the interaction between two or more atlases of another same type. E.g., [[DESIGNS/ToyWorldsAtlas/AtlasA_Doc|A]] & [[DESIGNS/ToyWorldsAtlas/AtlasA_Doc|A]] interacts differently, from B & B.
(2) Atlases of different types interact with each other differently. E.g., A & B interact in a different way than A & C, or B & C.
**Problem**: the variation of interaction needs to be limited due to the scope creep
### Methodology
- Colliders
- Visual Effects or particle systems, or physics -- see [[TWA_VFX_Doc]]
- When the player clicks on the atlas in the Orangery, they can control its movement and collide it with other atlases as they want
### Effects
**Same type**
| Participating<br>Atlases | Effect |
| ------------------------ | ----------------------------- |
| A & A | An explosion of small beetles |
| B & B | Waves of particles |
| C & C | Sparcles |
**Different type**
| Participating<br>Atlases | Effect |
| ------------------------ | ------ |
| A & B | |
| A & C | |
| A & D | |
![[atlas.borders]]