Editing EMP grenades

{{Infobox main|weapon
| name = EMP grenades
| image = EMP grenades.png
| description = Electromagnetic pulse grenades damaging to electronic equipment.
| type = Equipment
| type2 = Weapons
| tech level = Industrial
| class = Industrial
| damage = 50
| damage type = EMP
| range = 12.9
| accuracy = -
| mode = Single Thrown
| warmup = 90
| cooldown = 160
| missRadius = 1.9
| burst = 1
| blastRadius = 3.5
| DPS = DPS
| velocity = 12
| production facility 1 = Machining table
| research = Microelectronics
| resource 1 = Steel
| resource 1 amount = 20
| resource 2 = Component
| resource 2 amount = 6
| marketvalue = 315
| work to make = 24000
| mass base = 1
| has quality = False
| weaponTags = GrenadeEMP
| tradeTags = WeaponRanged
}}
'''EMP grenades''' are short ranged, thrown [[weapons]] that have a forced miss radius but deal EMP damage in a small radius around their target, allowing them to stun mechanical targets and deplete shields. They are not consumed on use and do not use any ammo.

== Acquisition ==
EMP grenades can be crafted at a [[{{P|Production Facility 1}}]] once the [[Research#{{P|Required Research}}|{{P|Required Research}}]] research project has been completed. They require {{Required Resources}} and {{Ticks|{{P|Work To Make}}}} of work.

They can also be [[Trade|purchased]] from orbital pirate merchants and orbital combat suppliers, [[outlander]] [[faction base]]s, and can be recovered after defeating the following [[raider]] types:
{| class="wikitable sortable"
! Raider Kind !! Chance !! Average Quality !! Health
|-
| EMP Grenadier || 100% || Normal || 70-230%
|}

== Summary ==
=== Weapon ===
{{For|a full exploration of the effects of EMP damage|EMP}}
EMP grenades are weapons. They take up the weapon slot and will not run out of ammo. Grenades are blocked by walls, but the blast ignores [[cover]]. When choosing a target, a circular zone will generate to indicate range, then another 3x3 indicator with a circular center will become the aiming spot.

EMP grenades deal {{P|Damage Base}} [[EMP]] damage in a {{P|Blast Radius}} tile radius. They are thrown from a very short range of {{P|Range}} tiles, and have moderate aiming time. Once landed, grenades have a {{ticks|100}} delay before exploding. With a forced miss radius of 1.9 tiles, an unobstructed grenade always lands within 1 grid tile (including diagonals) of the target. Therefore, the blast will always hit the intended tile. This means [[Skills#Shooting|Shooting]] skill, [[shooting accuracy]], and health of the grenadier is irrelevant. [[Aiming time]] effects still apply, however. 

EMP does not deal physical damage. Instead, EMP grenades stun [[turret]]s, [[mechanoid]]s, and [[mortar]]s for 50 EMP damage, or 25 seconds. After being stunned, mechanoids become "Adapted" and gain immunity against further stuns for {{Ticks|2200}}. Immunity is applied on stun, and further EMPs won't extend adaptation. EMP also disables [[shield belt]]s, causes [[brain shock]] on humanoids with brain implants, and vomiting on those with certain stomach implants.

=== Item ===
If at 20 HP or less, a grenade will explode if damaged by [[Damage Types#Flame|Flame]] damage. The grenades will spark and emit a hissing sound shortly before exploding some time later. The explosion deals 50 EMP damage in a 2.66 tile radius around itself.

EMP grenades have no [[quality]] - every set of grenades will have the same stats, regardless of the skill of the crafter.

== Analysis ==
While harmless against most organic life, EMP weaponry is incredibly useful against mechanoids, like [[centipede]]s, a decisive advantage against some of the toughest enemies in the game. Due to the forced miss radius, EMP grenades are a viable combat alternative for those with health issues or low shooting skill. [[Trigger-happy]] is beneifical, while the [[careful shooter]] trait is strictly detrimental.

Usage without oversight is prone to vulnerable positioning, inefficiency against moving target, and unwanted collateral damage. It therefore is a good idea to manually aim EMP grenades instead of relying on the colonists' AI to do that. They will not lead a moving target and will not attack targets which can only be hit by area of effect (e.g. well behind the corner of a wall). Repeated throwing will not stun mechs for any longer.

When throwing a grenade down an 1-tile wide alley, a pawn can consistently throw a grenade 4 tiles, not including the tile the pawn is standing on, without intersecting the two side walls. Beyond 4 tiles, there is a risk of hitting the wall and dropping short.

With the [[Royalty DLC]] active, they also play a vital role in suppressing [[low-shield pack]]s {{RoyaltyIcon}} and downing [[mech low-shield]]s {{RoyaltyIcon}}, ensuring that colonists can maintain damage output. [[Mech cluster]]s{{RoyaltyIcon}} are another great target of EMPs, even if their [[proximity activator]]s prevent the best firing angle. There are also niche uses in [[brain shock]]ing pawns with certain implants to safely down them as a method of safely downing [[Mental break#Beserk|berserking]] supersoldier colonists or rebellious [[slaves]].{{IdeologyIcon}}

=== Comparison to EMP launchers ===
{{See also|EMP launcher}}
The key differences between EMP grenades and launchers are: Range, Rate of Fire, Blast Radius, and Quality. 

While both have the same miss radius, grenades have a significantly larger blast radius. This means that grenades will always hit their intended tile, while the launcher may miss. Grenades are also faster to throw, which is a key advantage in most practical situations. 

Launchers have a higher range, which may be useful with good terrain/[[cover]] or against [[low shield pack]]s{{RoyaltyIcon}} or [[mech low-shield|mechanoid shields]]{{RoyaltyIcon}}. However, most [[mechanoid]]s will still outrange the launcher, including all mechanoids without the [[Biotech DLC]]. The [[militor]]{{BiotechIcon}} and [[diabolus]]{{BiotechIcon}} in particular are vulnerable to the launcher's extra range - the rest really aren't.

Unlike grenades, launchers are affected by [[quality]]. Masterwork and Legendary launchers in particular see an increase in damage (i.e. stun duration). Legendary launchers will stun for long enough that it's technically possible to 100% stun lock those without EMP resistance. In practice, it is almost impossible to get the timing perfect even before accounting for the risk of missed shots, unless you have multiple colonists with legendary launchers. Conversely, this makes grenades relatively better if you don't have good crafters - Awful launchers are worse at their job.

Overall, grenades are often the stronger and more practical choice. Their higher blast radius and faster fire rate make up for the range.
{| class="wikitable"
! Source !! Damage !! Stun Duration !! Post-Stun Adaption Duration !! Ideal Stun Uptime
|-
| Awful EMP launcher                            ||  45  ||{{ticks|{{#expr: 30*45 }} }}    || {{ticks|{{#expr: 2200-(30*45)}}}}    || {{#expr: 100* (30*45) / ((30*45)+(2200-(30*45))) round 2}}%
|-
| EMP Grenades, Poor/Norm/Good/Exc EMP launcher || 50   || {{ticks|{{#expr: 30*50 }} }}   || {{ticks|{{#expr: 2200-(30*50)}}}}    || {{#expr: 100* (30*50) / ((30*50)+(2200-(30*50))) round 2}}%
|-
| Masterwork EMP launcher                       || 62.5 || {{ticks|{{#expr: 30*62.5 }} }} || {{ticks|{{#expr: 2200-(30*62.5)}}}} || {{#expr: 100* (30*62.5) / ((30*62.5)+(2200-(30*62.5))) round 2}}%
|-
| Legendary EMP launcher                        || 75   || {{ticks|{{#expr: 30*75 }} }}   ||  {{ticks|0}} (''{{ticks|{{#expr: 2200-(30*75)}}}}'') || 100%
|}

== Version history ==
* [[Version/0.6.532|0.6.532]] -  Added.
* On or before 1.0.2096 - Texture updated.
* [[Version/1.3.3066|1.3.3066]] - Grenade throws are rendered in an arc.

<gallery>
EMP grenades old.png|Old texture  
</gallery>

{{Nav|weapon|wide}}
[[Category:Equipment]] [[Category:Weapons]] [[Category:Industrial Weapons]] [[Category:EMP Weapons]]
[[Category:Ranged Weapons]] [[Category:Single Thrown Weapons]] [[Category:Grenades]]