pub fn effect_magnitude(
settings: &StonesSettings,
trigger: &TriggerStoneTemplate,
effect: &EffectStoneTemplate,
effect_level: i64,
) -> f64Expand description
Effect strength for one fire: the template’s own scaling by upgrade level,
times the (trigger tier × effect tier) coefficient. Every shipped cell of
that matrix is 1.0, so tier interaction stays a config edit.