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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0001506 | Spring engine | General | public | 2009-07-19 03:19 | 2013-01-16 22:00 | ||||
| Reporter | Saktoth | ||||||||
| Assigned To | Kloot | ||||||||
| Priority | normal | Severity | major | Reproducibility | always | ||||
| Status | resolved | Resolution | fixed | ||||||
| Product Version | |||||||||
| Target Version | 0.81.0.0 | Fixed in Version | 91.0.1+git | ||||||
| Summary | 0001506: Submerged units take no damage on exposed portions of their Hitsphere | ||||||||
| Description | A unit whose centre is submerged takes no damage if hit on an exposed (above surface) portion of its hitsphere. | ||||||||
| Tags | No tags attached. | ||||||||
| Checked infolog.txt for Errors | |||||||||
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| Notes |
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Kloot (developer) 2009-07-19 12:46 |
A unit that is underwater (defined by its center position being submerged) receives only attenuated damage from nearby explosions, even if its hit _volume_ sticks out of the water. The reason is that submarines would be much too vulnerable to surface weapons otherwise. This has basically been around since The Beginning, so it's not going to get changed without major deliberation. |
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hoijui (reporter) 2009-07-25 10:59 |
in other words.. this is no bug, and we can close it? |
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Kloot (developer) 2009-07-25 16:15 |
I wouldn't call it a bug, no, but had left this report open for a possible follow-up discussion. Doesn't look like there's going to be one though. |
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Saktoth (reporter) 2009-09-09 20:16 |
If a unit is hit directly by a weapon (not by its AoE) on an exposed part, it takes 0 damage. This happens in BA (rarely, such as when a sub is right next to a depthcharge launcher) CA (often, we have air units that drop waterweapon bombs directly down on top of subs) and so to Torpedoes and other water weapons. It does not effect surface-based weapons that can travel underwater (beamlasers can be force-fired at the surface to damage underwater units, as long as they hit on the submerged portion of the hitsphere). A weapon fired at and exploding above the water, such as on the shore, does full damage with its AoE to subs (say, a Nuke). In mods where subs take less damage from surface weapons, it is mod-defined using special damages- it has nothing to do with the engine! |
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Kloot (developer) 2009-09-09 23:31 |
*sigh* 1. There is no technical difference between direct- and AOE-"hits", the engine deals damage to units through an Explosion abstraction and nothing else. If a direct hit imparted no damage while a slight miss did (all other circumstances being equal), _then and only then_ would you have a valid bug. 2. The attenuation occurs if _and only if_ a unit is underwater AND the explosion caused by a weapon is above-surface, so projectiles that can travel underwater are not affected during submerged impacts. 3. It should be pretty obvious why nukes suffer negligible attenuation effects compared to depthcharge launchers. 4. Subs take less damage from surface weapon _explosions_ because the engine controls this _regardless_ of the mod. 5. I know what I'm talking about when I close a report. |
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Saktoth (reporter) 2009-09-14 06:25 |
I am afraid you do not. Here is a replay for BA of a test game where i reproduce the bug. http://replays.adune.nl/?1647 Hitting on the top of the hitsphere causes 0 damage. Hitting on the submerged portion of the hitsphere causes full damage. The projectile seems to expire without causing damage. This is not a sub-specific problem, it happens to partially submerged fusions, other underwater units, etc. Note that a weapon with significant enough AoE to reach the target will do full damage to it, regardless of whether the explosion is above or below the water. I can show you a demonstration of that, too, if you require it. |
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KDR_11k (reporter) 2009-09-14 13:09 |
Basically the logic is that underwater units vs above water explosions don't get their radius added to the AOE calculation like units usually do but can still collide with projectiles that are outside water. |
| Notes |
| Issue History |
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| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2009-07-19 03:19 | Saktoth | New Issue | |
| 2009-07-19 12:46 | Kloot | Note Added: 0003740 | |
| 2009-07-25 10:59 | hoijui | Note Added: 0003757 | |
| 2009-07-25 16:15 | Kloot | Note Added: 0003779 | |
| 2009-07-25 16:16 | Kloot | Status | new => closed |
| 2009-07-25 16:16 | Kloot | Resolution | open => won't fix |
| 2009-09-09 20:16 | Saktoth | Note Added: 0004091 | |
| 2009-09-09 20:16 | Saktoth | Status | closed => new |
| 2009-09-09 20:16 | Saktoth | Resolution | won't fix => reopened |
| 2009-09-09 23:31 | Kloot | Note Added: 0004094 | |
| 2009-09-09 23:31 | Kloot | Status | new => closed |
| 2009-09-09 23:31 | Kloot | Resolution | reopened => won't fix |
| 2009-09-14 06:25 | Saktoth | Note Added: 0004125 | |
| 2009-09-14 06:25 | Saktoth | Status | closed => new |
| 2009-09-14 06:25 | Saktoth | Resolution | won't fix => reopened |
| 2009-09-14 13:09 | KDR_11k | Note Added: 0004127 | |
| 2009-10-03 10:46 | imbaczek | Target Version | => 0.81.0.0 |
| 2013-01-16 22:00 | Kloot | Status | new => resolved |
| 2013-01-16 22:00 | Kloot | Fixed in Version | => 91.0.1+git |
| 2013-01-16 22:00 | Kloot | Resolution | reopened => fixed |
| 2013-01-16 22:00 | Kloot | Assigned To | => Kloot |
| Issue History |