Artillery is not that effective in 0 A.D., partly because their damage per second is unimpressive (especially compared to rams or war elephants), partly because of their splash damage.
Splash damage was added in rP11886 (nearly eight years ago). The values have changed multiple times, as has the exact calculation (see `simulation/components/Attack.js`). While it's quite interesting in theory, in practice it's not that effective. @fatherbushido explained how it works [[ https://wildfiregames.com/forum/topic/27203-balance-mod-to-test-changes/page/2/?tab=comments#comment-391484 | on the forums ]]. It's important to understand the actual splash damage depends on the distance to the //centre// of entities, in contrast to ordinary attacks, which do full damage when they hit the footprint (edge).
Splash damage has some serious problems:
* It has no effect vs entities with footprints longer than the splash radius, such as many (most?) structures and warships.
* The AI does not take it into account.
* It's anachronistic: exploding shells did not exist yet in 0 A.D.'s timeframe. Missiles were rigid objections, and even the very largest projectiles were well under a metre in diameter.
This patch therefore removes splash attacks from artillery and improves the normal attack. The changes are:
* Splash damage is removed from bolt shooters, stone throwers, onagers, quinqueremes, bolt towers and artillery towers.
* Attack damage is significantly raised in compensation.
* Bolt shooters and bolt towers inflict only pierce damage, no crush.
* Stone throwers, quinqueremes, and artillery towers inflict only crush damage, no pierce.
* Fireraiser inflicts all damage types equally (cf. fireship).
* Bolt shooters have lower minimum range and higher maximum range, making them more effective vs soldiers.
* Stone throwers, onagers, and quinqueremes have higher minimum range, making them less effective vs soldiers.
* Roman artillery no longer have +8 maximum range; the +10% attack damage at no extra cost is already a great bonus.
* Artillery and bolt towers have their minimum range increased (unlike archers, artillery can only shoot forwards or upwards, but not downwards).
* Fireraiser has increased minimum and maximum range, due to its long footprint.
* Preferred class:
* Artillery towers no longer prefer Human; instead, they prefer non-Organic (i.e. ships, siege engines, and structures equally).
* Bolt shooters no longer have a secondary preference for Siege.
* Artillery and bolt towers no longer get additional projectiles from garrisoned units.
[EDIT] For comparison the resulting damage per second values:
damage / time = damage per second
boltshooter : 240 pierce / 6 = 40
bolt tower : 100 pierce / 4 = 25
champion cavalry javelineer : 36 pierce / 1.25 = 28.8 [unchanged]
champion infantry javelineer : 26 pierce / 1 = 26 [unchanged]
basic cavalry javelineer : 18 pierce / 1.25 = 14.4 [unchanged]
basic infantry javelineer : 16 pierce / 1.25 = 12.8 [unchanged]
ram : 150 crush / 1.5 = 100 [unchanged]
stonethrower : 210 crush / 7 = 30
quinquereme : 150 crush / 5 = 30
onager : 150 crush / 5 = 30
artillery tower : 90 crush / 5 = 18
fireraiser : 30 + 30 + 30 / 2 = 45
fireship : 10 + 10 + 10 / 0.1 = 300 [unchanged]
Related: D2493, D2495, D2549.