Ballistics / projectiles cause damage even if they miss

[elexis]

Sometimes the displayed trajectory differs vastly from the position of the unit. The arrow is far away from the target. Still the target is taking damage.

This is most noticeable with catapults when attacking a moving target. The parabola will be very wide and the cavalry can be more than 100m away from the target when it "collides":

This issue was noticed by defenderbenny. He also noted that in age of empires 2 there is a ballistics technology which if researched, allows this kind of behavior.

[elexis]

replay from unix timestamp 1474676761 (september 24th 2016)

[fatherbushido]

When we don't hit the target at the expected location, if we hit a nearby unit (in a radius equal to 2 times the distance between the expected target position and the real target position).

• So, here we get many entities to check. (perhaps we can modify that).
• Then the bug comes from that we have inverted the check for doing the damage so we give damage to the first checked unit we didn't hit. See #4276

[fatherbushido]

Fixed in r18828 and r18829.

[elexis]

This had a measurable impact on the balancing of units who miss often, mostly skirmishers and we should reevaluate their spread value.