Grouping

Grouping expressions is a way to specify order of evaluation, which is useful if you need to work around operator precedence.

Grouping expressions is a way to specify order of evaluation, which is useful if you need to work around operator precedence.

You can group expressions by using ().

For example, the expressions (y2 - y1) and (x2 - x1) below are evaluated before dividing the numbers.

(y2 - y1) / (x2 - x1)
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As an example, take an in-game explosion that scales its damage based on the distance from the player, but where the player's armor can reduce the total damage:

|  | BaseDamage : float = 100 |
| --- | --- |
|  | Armor : float = 15 |
|  |  |
|  | # Scale by square distance between the player and the explosion. 1.0 is the minimum |
|  | DistanceScaling : float = Max(1.0, Pow(PlayerDistance, 2.0)) |
|  |  |
|  | # The farther the explosion is, the less damage the player takes |
|  | var ExplosionDamage : float = BaseDamage / DistanceScaling |
|  |  |
|  | # Reduce the damage by armor |
|  | set ExplosionDamage -= Armor |
|  |  |
|  | # Avoid negative damage values so that explosions can't heal very high armor players. |
|  | set ExplosionDamage = Max(0.0, ExplosionDamage) |