126 lines
4.8 KiB
Perl
126 lines
4.8 KiB
Perl
.TH Concept Interception
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.NA Interception "How plane interception works"
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.LV Expert
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.s1
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Each time an enemy plane (i.e. a plane owned by a country that your are
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HOSTILE to or worse) flies into over a sector you own, planes you
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have with the intercept ability will intercept them if:
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.NF
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a) The incoming plane is not stealthy, or is detected.
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b) The sector is within 1/2 the interceptor's range (as modified
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by the range command)
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b) They have mobility
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c) Their efficiency is 40 or more
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d) They are at an appropriate place:
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1) planes without VTOL ability must be at an airport that
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is at least 60% efficient.
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2) planes on ships may only fly if the ship can operate
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that kind of aircraft.
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e) There is petrol there equal to 1/2 the plane's fuel rating.
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(rounded down)
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.FI
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.s1
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Before planes scramble to intercept incoming planes, flak fires (see
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info Flak), air defense missions are executed (see info mission), and
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any SAMs in range
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will be launched. One SAM is launched at each incoming plane that
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cost at least $1000 to build. See below for the damage that the SAM
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does to the plane it hits.
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.s1
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Enemy planes will be intercepted by up to 1 more interceptor,
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i.e. 1 plane will be intercepted by 2 (if available), 2 by 3,
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3 by 4, etc. The highest
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numbered planes intercept first. Incoming missiles will only be intercepted
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by ABM's
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.s1
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Once the roster of attackers & interceptors is determined, attackers
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and interceptors dogfight. First escorts & interceptors fight,
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then planes being escorted & surviving non-aborted interceptors.
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.s1
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First, an attacker and a defender are chosen, then each plane on each
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list fights once.
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.s1
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.L "Combat values"
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.s1
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The attacker's combat value is calculated by adding up his planes attack
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value, and modifying it for efficiency, bomb-load, and stealth. The attack
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value of the plane is multiplied times the plane's efficiency, but cannot
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go below 1/2 of the plane-type's base value (as shown by show plane stats).
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(If the plane's attack value
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is 0, the defensive value is used instead, with a minimum of 1/2 the plane-
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type's defensive value)
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.s1
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Two is subtracted if the attacking plane is carrying bombs.
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.s1
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If the plane is stealthy, stealth%/25 is added.
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.s1
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The defender's value is calculated in the same way, except that the
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defensive value is always used.
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.s1
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.L Odds
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.s1
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Next, an odds ratio is calculated: (att/(def+att))*100.
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.s1
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.L "Combat Intensity"
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.s1
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Then, a combat intensity is rolled: (d20+d20+d20+d20)
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.s1
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.L Combat
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For each point of combat intensity (or until both planes are dead),
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a d100 is rolled. If the value is less than the odds, the defender
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takes a casualty, otherwise the attacker takes a casualty.
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.s1
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Once all combat rolls have been made, the attacker and defender are
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checked for aborting. If a plane is damaged below 80%, then it will
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have a chance of aborting. The chance to abort is (80-plane eff). (Example: a
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plane at 70% has a 10% chance to abort.
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.s1
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Missiles intercepting die after the combat is done.
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.L Example
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.s1
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Suppose that a fighter 2 (30% efficient, tech 154, attack value 7) is
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conducting a recon mission. As it enters an enemy controlled sector, a
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fighter 1 (100% efficient, tech 131, defense value 4) rises up to fight it.
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The attacker's combat value is calculated:
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.s1
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.NF
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1) 7 * (30/100) = 2.1 = 2
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2) 2 is less than 1/2 the base attack value of an f2 (6), so the value
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is changed to 3
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3) The attacking plane is not stealthy. No modifier.
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4) The attacking plane is not carrying bombs. No modifier.
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.FI
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.s1
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The defender's defense value, calculated similarly, is 4.
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.s1
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The odds ratio is (3/(3+4)) = .429 = 43%
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.s1
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The intensity is randomly determined to be 30. A d100 is rolled 30 times.
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Each time that is 43 or less, the defender takes a hit. Each time it is
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44 or more, the attacker takes a hit.
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.s1
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In our example, the attacker takes 17, the defender 13, leaving them
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at 13% and 87% efficiency, respectively. The attacker has an 67%
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chance to abort, and the defender won't. If the attacker aborts, the
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mission is over. Else, the attacker flies on to the next sector in
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his flight path, perhaps to have combat again.
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.s1
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.L ABM's
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ABM's do not use the normal combat procedure. They simply have a %
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chance of destroying an incoming warhead equal to their defensive value.
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.s1
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If you have land units in the enemy plane's target sector, your plane will
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intercept the enemy planes AGAIN. If you have non-sub ships in the enemy plane's
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target sector, your planes will intercept them yet again. If you own
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the target sector, and have ships & units there, your planes will therefore
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intercept them a total of three times in that sector. Note that a 'target
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sector' is a sector that is the target of a bombing or para mission. Merely
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having ships in a sector will not cause interception of planes flying over.
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.s1
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.SA "Plane-types, plane, fly, recon, bomb, range, mission, Flak, Planes"
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