AIWC Specifications P3
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3-1. Soccer Ball Dimensions
The soccer ball is a simple sphere with diameter of 10.0 cm and mass of 18.4 g.
In AI Soccer, the contacts between objects in the simulation are dealt with contact properties that are defined between two materials contacting. In the simulation, there are seven types of materials.
- Floor
- Wall - includes the goalposts(the goalposts are covered by virtual walls)
- Goalkeeper Body
- Defender Body
- Forward Body
- Wheel
- Ball
Based on which material is in contact with another material, the coefficient of friction (COF) and the coefficient of restitution (COR) are defined differently.
| COF / COR | Body (any role) | Wheel | Ball |
| Floor | 0 / 0 | 3 / 0 | 0.1 / 0 |
| Wall | 1 / 0 | 1 / 0 | 1 / 0.75 |
| GK-body | 1 / 0.25 | 1 / 0 | 1 / 0.5 |
| D-body | 1 / 0.8 | ||
| F-body | 1 / 0.8 | ||
| Wheel | 1 / 0 | 1 / 0 | 1 / 0 |