Known Bugs (TFTD) - Revision history

Darkpast: /* Alien Glitches */

2023-06-26T17:48:15Z

Alien Glitches

← Older revision		Revision as of 17:48, 26 June 2023
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	* Aliens can't use carried melee weapons (Vibroblades and both types of Thermic Lances), even when they are equipped with them. (This is a game engine bug is present in UFO:EU as well, but it is not relevant to UFO:EU, since in UFO:EU aliens never get equipped with any carried melee weapons.) *		* Aliens can't use carried melee weapons (Vibroblades and both types of Thermic Lances), even when they are equipped with them. (This is a game engine bug is present in UFO:EU as well, but it is not relevant to UFO:EU, since in UFO:EU aliens never get equipped with any carried melee weapons.) *
	* The [[Bio-Drone]]'s melee attack almost always has no effect, even on unarmoured troops. ([[User:Zombie\|Zombie]] has determined the weapon has a base accuracy of 0%, presumably a programming error). This is a serious flaw in the Bio-Drone, as it always uses this attack when Aquanauts are adjacent - especially given that one of the best ways to deal with Bio-Drones is by melee combat. *		* The [[Bio-Drone]]'s melee attack almost always has no effect, even on unarmoured troops (chance to hit is 0.9%). ([[User:Zombie\|Zombie]] has determined the weapon has a base accuracy of 0%, presumably a programming error). This is a serious flaw in the Bio-Drone, as it always uses this attack when Aquanauts are adjacent - especially given that one of the best ways to deal with Bio-Drones is by melee combat. *
	* <s>The [[Hallucinoid]]'s ranged attack only works on land, but the Hallucinoid rarely/never appears on land. Presumably this is a programming error and was meant to be the other way round (only works underwater)</s>. The [[Hallucinoid]] is not given a ranged attack of any kind although the in-game description states that it has one. Its melee attack deals normal (lethal) damage although the in-game description says that it is icy, leading the player to believe that it should stun. ''This has been verified by several reliable sources. It does not appear on land unless the game code or data files have been modified.''		* <s>The [[Hallucinoid]]'s ranged attack only works on land, but the Hallucinoid rarely/never appears on land. Presumably this is a programming error and was meant to be the other way round (only works underwater)</s>. The [[Hallucinoid]] is not given a ranged attack of any kind although the in-game description states that it has one. Its melee attack deals normal (lethal) damage although the in-game description says that it is icy, leading the player to believe that it should stun. ''This has been verified by several reliable sources. It does not appear on land unless the game code or data files have been modified.''
	* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *		* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *
	* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *		* The Bio-Drone leaves a burning trail. This may be a holdover from the Silacoid in UFO, most likely because the designers used the Silacoid slot from the original game for this alien. Then again, it is possible that it is intended to do this, even though it is not mentioned in the in-game UFOpaedia. *
	* Even though it looks like an exclusively aquatic ~~creatures~~, a [[Xarquid]] sometimes appears as part of [[Mixed Crew]] missions on land, and is able to "swim" through the air.		* Even though it looks like an exclusively aquatic creature, a [[Xarquid]] sometimes appears as part of [[Mixed Crew]] missions on land, and is able to "swim" through the air. This is likely because of an oversight or bug in the way the game is supposed to replace terrorists on land. A [[Deep One]] or [[Calcinite]] was probably supposed to appear instead.
	* Despite being organic aliens, the Xarquid and [[Hallucinoid]] have the "robotic" flag set, which makes them impossible to capture alive. This is most likely because the designers used the Cyberdisk and Sectopod slots from the original game for these aliens, but forgot to remove said flags.		* Despite being organic aliens, the Xarquid and [[Hallucinoid]] have the "robotic" flag set, which makes them impossible to capture alive. This is most likely because the designers used the Cyberdisk and Sectopod slots from the original game for these aliens, but forgot to remove said flags.

Darkpast: /* Ufopaedia Discrepancies */ Coelacanth/G. Cannon discrepancy added

2022-08-19T21:44:58Z

Ufopaedia Discrepancies: Coelacanth/G. Cannon discrepancy added

← Older revision		Revision as of 21:44, 19 August 2022
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	* The Ufopaedia describes the [[Dart Gun]] as having a ten round magazine, when in fact it has a twelve round magazine.		* The Ufopaedia describes the [[Dart Gun]] as having a ten round magazine, when in fact it has a twelve round magazine.
	* The Ufopaedia shows the damage of a [[Coelacanth/Aqua Jet]]'s torpedo as 90, but the coded value is 85.		* The Ufopaedia shows the damage of a [[Coelacanth/Aqua Jet]]'s torpedo as 90, but the coded value is 85.
			* The Ufopaedia shows the damage of a [[Coelacanth/G. Cannon]]'s harpoon cannon as 50, but the coded value is 60.

	== Questionable logic==		== Questionable logic==

Darkpast: /* Alien Glitches */ added Hallucinoid and Xarquid design errors

2022-05-15T23:16:31Z

Alien Glitches: added Hallucinoid and Xarquid design errors

← Older revision		Revision as of 23:16, 15 May 2022
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	* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *		* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *
	* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *		* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *
			* Even though it looks like an exclusively aquatic creatures, a [[Xarquid]] sometimes appears as part of [[Mixed Crew]] missions on land, and is able to "swim" through the air.
			* Despite being organic aliens, the Xarquid and [[Hallucinoid]] have the "robotic" flag set, which makes them impossible to capture alive. This is most likely because the designers used the Cyberdisk and Sectopod slots from the original game for these aliens, but forgot to remove said flags.

	== Mind Control Bugs==		== Mind Control Bugs==

Darkpast: mentioning the Coelacanth Aqua Jet damage given in the Ufopaedia is wrong

2021-12-03T10:11:12Z

mentioning the Coelacanth Aqua Jet damage given in the Ufopaedia is wrong

← Older revision		Revision as of 10:11, 3 December 2021
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	In UFO Enemy Unknown, the Manufacturing Rate Limit is just an irritant: The game prevents you from allocating more Engineers than the PRODUCT.DAT files says are needed to complete the item in one hour. This result in a minimum of one hour per item being necessary for the whole order. In an attempt to overcome this, the programmers eliminated this cap on the manufacture screen but failed to alter the code that actually determines what is produced every hour. Any extra technicians assigned over the number shown when you start an order produce nothing and their hours are wasted.		In UFO Enemy Unknown, the Manufacturing Rate Limit is just an irritant: The game prevents you from allocating more Engineers than the PRODUCT.DAT files says are needed to complete the item in one hour. This result in a minimum of one hour per item being necessary for the whole order. In an attempt to overcome this, the programmers eliminated this cap on the manufacture screen but failed to alter the code that actually determines what is produced every hour. Any extra technicians assigned over the number shown when you start an order produce nothing and their hours are wasted.

	== ~~Ufopedia~~ Discrepancies ==		== Ufopaedia Discrepancies ==

	* [[Deep One]]s are portrayed carrying a weapon, in fact it appears to be carrying an X-com issue [[P.W.T. Cannon\|P.W.T. Cannon]] craft weapon, instead of being unarmed other than its built in attack. *		* [[Deep One]]s are portrayed carrying a weapon, in fact it appears to be carrying an X-com issue [[P.W.T. Cannon\|P.W.T. Cannon]] craft weapon, instead of being unarmed other than its built in attack. *
	* The [[Tasoth]] species is described as more resembling some sort of foot soldier in ~~Ufopedia~~. It seems highly likely that the Tasoth were supposed to be one of the grunt races, and planning issues caused there to only be 4 main races in TFTD, making Tasoth the default Psionic (MC using) race.		* The [[Tasoth]] species is described as more resembling some sort of foot soldier in Ufopaedia. It seems highly likely that the Tasoth were supposed to be one of the grunt races, and planning issues caused there to only be 4 main races in TFTD, making Tasoth the default Psionic (MC using) race.
	* The [[Tentaculat]] description states that ([[Zombie]]s) cause death by touch even through armor. That's very wrong. The resulting zombies have a rather weak melee attack, especially compared to the Tentaculats. Also, the description says nothing about Zombies turning into Tentaculats upon death.		* The [[Tentaculat]] description states that ([[Zombie]]s) cause death by touch even through armor. That's very wrong. The resulting zombies have a rather weak melee attack, especially compared to the Tentaculats. Also, the description says nothing about Zombies turning into Tentaculats upon death.
	* The ~~Ufopedia~~ shows the damage of a [[Displacer/Sonic]] cannon as 130, but the coded value is 110. *		* The Ufopaedia shows the damage of a [[Displacer/Sonic]] cannon as 130, but the coded value is 110. *
	* See also the Craft Bugs where the map layout, interception picture and the ~~Ufopedia~~ picture are inconsistent with each other.		* See also the Craft Bugs where the map layout, interception picture and the Ufopaedia picture are inconsistent with each other.
	* The ~~Ufopedia~~ describes the [[Dart Gun]] as having a ten round magazine, when in fact it has a twelve round magazine.		* The Ufopaedia describes the [[Dart Gun]] as having a ten round magazine, when in fact it has a twelve round magazine.
			* The Ufopaedia shows the damage of a [[Coelacanth/Aqua Jet]]'s torpedo as 90, but the coded value is 85.

	== Questionable logic==		== Questionable logic==

Spike: /* Craft Bugs */ added 'Medic Cannon'

2016-06-07T15:46:32Z

Craft Bugs: added 'Medic Cannon'

← Older revision		Revision as of 15:46, 7 June 2016
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	*Troop transports like the [[Triton]] can be blown up quite badly in land maps (rather than being invulnerable as it should be). This somehow doesn't prevent X-COM from flying back using it.		*Troop transports like the [[Triton]] can be blown up quite badly in land maps (rather than being invulnerable as it should be). This somehow doesn't prevent X-COM from flying back using it.
	* '''TFTD V1.0''' There is a unit positioning bug when placing 26 men in a Leviathan. This bug is fixed by [[XcomUtil]] (and presumably in later versions of TFTD).		* '''TFTD V1.0''' There is a unit positioning bug when placing 26 men in a Leviathan. This bug is fixed by [[XcomUtil]] (and presumably in later versions of TFTD).
			* 'Medic Cannon' - USO being armed with 1/0 weapons, the 'weapon' being 'medic' shown as a purple rank badge with commander's chains. with an ammunition capacity of two, but without any rounds for it. [[User:NKF\|NKF]] says "it takes the D.U.P. Head as ammo. The launcher. Not the ammo. I don't know if the performance is the same between glitches, but I've seen this thing destroy a Dreadnaught and left no wreckage. Then at other times it does nothing."

	== X-COM Equipment Glitches ==		== X-COM Equipment Glitches ==

NKF: /* Geoscape Bugs */ Fencepost error

2015-08-26T06:50:42Z

Geoscape Bugs: Fencepost error

← Older revision		Revision as of 06:50, 26 August 2015
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	* Craft Gauss Cannon rearm rate. The Craft Gauss Cannon reloads at only 10 rounds per hour. This compares to 99 or 100 rounds per hour for all other cannon weapons in TFTD and EU. This is believed to be a data entry bug when changing the reload rate of the Laser Cannon (99) for the TFTD equivalent Gauss Cannon. The result is that fully reloading a single Gauss Cannon takes 5+1= 6 hours and dual Gauss Cannon 5x2+1= 11 hours. This is slower rearming than any other weapon system apart from AJAX/Stingray (which itself probably represents a design oversight on its rearming rate). *		* Craft Gauss Cannon rearm rate. The Craft Gauss Cannon reloads at only 10 rounds per hour. This compares to 99 or 100 rounds per hour for all other cannon weapons in TFTD and EU. This is believed to be a data entry bug when changing the reload rate of the Laser Cannon (99) for the TFTD equivalent Gauss Cannon. The result is that fully reloading a single Gauss Cannon takes 5+1= 6 hours and dual Gauss Cannon 5x2+1= 11 hours. This is slower rearming than any other weapon system apart from AJAX/Stingray (which itself probably represents a design oversight on its rearming rate). *

	* When generating the Geodata.dat outline map for a sunken plane mission, if the game decides to put in a small version of the right wing (PLANE19.MAP or PLANE20.MAP) it will try to place it in Geodata map block 3, 3 (tile x:30 y:30). When verifying if the block is free, the game will mistakenly check Geodata map block 0, 1 (x:0 y:10). If that block is free, it will create the small wing in map block 3, 3 regardless of what was in there. While this is a bug, ~~it is~~ quite trivial and players will not notice anything were it to have taken effect.		* When generating the Geodata.dat outline map for a sunken plane mission, if the game decides to put in a small version of the right wing (PLANE19.MAP or PLANE20.MAP) it will try to place it in Geodata map block 3, 3 (tile x:30 y:30). When verifying if the block is free, the game will mistakenly check Geodata map block 1, 1 (x:10 y:10). If that block is free, it will create the small wing in map block 3, 3 regardless of what was in there. While this is a bug, its effects are quite trivial and players will not necessarily notice anything amiss were it to have taken effect.
	:: The more technical explanation is that instead of checking the Geodata.dat map location at 3 * ~~map width~~ + 3, the game simply checks the map at location 3 + 3. The map width has been ~~left out~~.		:: The more technical explanation is that instead of checking the Geodata.dat map location at 3 * 5 + 3, the game simply checks the map at location 3 + 3. The map width (5) has been omitted.


	== Battlescape Bugs ==		== Battlescape Bugs ==

NKF: Whoops, the wing bug is technically a Geoscape bug, not a Tactical bug

2015-08-25T08:21:16Z

Whoops, the wing bug is technically a Geoscape bug, not a Tactical bug

← Older revision		Revision as of 08:21, 25 August 2015
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	* Craft Gauss Cannon rearm rate. The Craft Gauss Cannon reloads at only 10 rounds per hour. This compares to 99 or 100 rounds per hour for all other cannon weapons in TFTD and EU. This is believed to be a data entry bug when changing the reload rate of the Laser Cannon (99) for the TFTD equivalent Gauss Cannon. The result is that fully reloading a single Gauss Cannon takes 5+1= 6 hours and dual Gauss Cannon 5x2+1= 11 hours. This is slower rearming than any other weapon system apart from AJAX/Stingray (which itself probably represents a design oversight on its rearming rate). *		* Craft Gauss Cannon rearm rate. The Craft Gauss Cannon reloads at only 10 rounds per hour. This compares to 99 or 100 rounds per hour for all other cannon weapons in TFTD and EU. This is believed to be a data entry bug when changing the reload rate of the Laser Cannon (99) for the TFTD equivalent Gauss Cannon. The result is that fully reloading a single Gauss Cannon takes 5+1= 6 hours and dual Gauss Cannon 5x2+1= 11 hours. This is slower rearming than any other weapon system apart from AJAX/Stingray (which itself probably represents a design oversight on its rearming rate). *

			* When generating the Geodata.dat outline map for a sunken plane mission, if the game decides to put in a small version of the right wing (PLANE19.MAP or PLANE20.MAP) it will try to place it in Geodata map block 3, 3 (tile x:30 y:30). When verifying if the block is free, the game will mistakenly check Geodata map block 0, 1 (x:0 y:10). If that block is free, it will create the small wing in map block 3, 3 regardless of what was in there. While this is a bug, it is quite trivial and players will not notice anything were it to have taken effect.
			:: The more technical explanation is that instead of checking the Geodata.dat map location at 3 * map width + 3, the game simply checks the map at location 3 + 3. The map width has been left out.


	== Battlescape Bugs ==		== Battlescape Bugs ==
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	* In the CE version, clips that are loaded into weapons dropped on the battlefield will be given to the player at the time of an abort, even if the weapon in question was left on the battlefield. This is very apparent on USO recovery missions if the player immediately aborts when the battle starts and several aliens have died prior to the start of battle.*		* In the CE version, clips that are loaded into weapons dropped on the battlefield will be given to the player at the time of an abort, even if the weapon in question was left on the battlefield. This is very apparent on USO recovery missions if the player immediately aborts when the battle starts and several aliens have died prior to the start of battle.*

	* When generating the Geodata.dat outline map for a sunken plane mission, if the game decides to put in a small version of the right wing (PLANE19.MAP or PLANE20.MAP) it will try to place it in Geodata map block 3, 3 (tile x:30 y:30). When verifying if the block is free, the game will mistakenly check Geodata map block 0, 1 (x:0 y:10). If that block is free, it will create the small wing in map block 3, 3 regardless of what was in there. While this is a bug, it is quite trivial and players will not notice anything were it to have taken effect.
	~~:: The more technical explanation is that instead of checking the Geodata.dat map location at 3 * map width + 3, the game simply checks the map at location 3 + 3. The map width has been left out.~~

	==Manufacturing Rate Limit Bug(TFTD)*==		==Manufacturing Rate Limit Bug(TFTD)*==

NKF: /* Battlescape Bugs */ Very minor bug with Sunken plane small right wing placement

2015-08-25T07:59:54Z

Battlescape Bugs: Very minor bug with Sunken plane small right wing placement

← Older revision		Revision as of 07:59, 25 August 2015
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	* In the CE version, clips that are loaded into weapons dropped on the battlefield will be given to the player at the time of an abort, even if the weapon in question was left on the battlefield. This is very apparent on USO recovery missions if the player immediately aborts when the battle starts and several aliens have died prior to the start of battle.*		* In the CE version, clips that are loaded into weapons dropped on the battlefield will be given to the player at the time of an abort, even if the weapon in question was left on the battlefield. This is very apparent on USO recovery missions if the player immediately aborts when the battle starts and several aliens have died prior to the start of battle.*

			* When generating the Geodata.dat outline map for a sunken plane mission, if the game decides to put in a small version of the right wing (PLANE19.MAP or PLANE20.MAP) it will try to place it in Geodata map block 3, 3 (tile x:30 y:30). When verifying if the block is free, the game will mistakenly check Geodata map block 0, 1 (x:0 y:10). If that block is free, it will create the small wing in map block 3, 3 regardless of what was in there. While this is a bug, it is quite trivial and players will not notice anything were it to have taken effect.
			:: The more technical explanation is that instead of checking the Geodata.dat map location at 3 * map width + 3, the game simply checks the map at location 3 + 3. The map width has been left out.

	==Manufacturing Rate Limit Bug(TFTD)*==		==Manufacturing Rate Limit Bug(TFTD)*==

Morgan525: /* Alien Glitches */

2015-08-07T07:53:58Z

Alien Glitches

← Older revision		Revision as of 07:53, 7 August 2015
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	* Aliens can't use carried melee weapons (Vibroblades and both types of Thermic Lances), even when they are equipped with them. (This is a game engine bug is present in UFO:EU as well, but it is not relevant to UFO:EU, since in UFO:EU aliens never get equipped with any carried melee weapons.) *		* Aliens can't use carried melee weapons (Vibroblades and both types of Thermic Lances), even when they are equipped with them. (This is a game engine bug is present in UFO:EU as well, but it is not relevant to UFO:EU, since in UFO:EU aliens never get equipped with any carried melee weapons.) *
	* The [[Bio-Drone]]'s melee attack almost always has no effect, even on unarmoured troops. ([[User:Zombie\|Zombie]] has determined the weapon has a base accuracy of 0%, presumably a programming error). This is a serious flaw in the Bio-Drone, as it always uses this attack when Aquanauts are adjacent - especially given that one of the best ways to deal with Bio-Drones is by melee combat. *		* The [[Bio-Drone]]'s melee attack almost always has no effect, even on unarmoured troops. ([[User:Zombie\|Zombie]] has determined the weapon has a base accuracy of 0%, presumably a programming error). This is a serious flaw in the Bio-Drone, as it always uses this attack when Aquanauts are adjacent - especially given that one of the best ways to deal with Bio-Drones is by melee combat. *
	* <s>The [[Hallucinoid]]'s ranged attack only works on land, but the Hallucinoid rarely/never appears on land. Presumably this is a programming error and was meant to be the other way round (only works underwater)</s>. The [[Hallucinoid]] is not given a ranged attack of any kind although the in-game description states that it ~~should have~~ one. ~~It has a~~ melee attack ~~but it~~ deals normal, lethal damage ~~even though its~~ in-game description says that it is icy, leading the player to believe that it should be stun ~~damage~~. ''This has been verified by several reliable sources ~~and the unit~~ does not appear on land unless the game code or data files have been modified.''		* <s>The [[Hallucinoid]]'s ranged attack only works on land, but the Hallucinoid rarely/never appears on land. Presumably this is a programming error and was meant to be the other way round (only works underwater)</s>. The [[Hallucinoid]] is not given a ranged attack of any kind although the in-game description states that it has one. Its melee attack deals normal (lethal) damage although the in-game description says that it is icy, leading the player to believe that it should stun. ''This has been verified by several reliable sources. It does not appear on land unless the game code or data files have been modified.''
	* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *		* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *
	* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *		* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *

Morgan525: /* Alien Glitches */ updated information on the Hallucinoid

2015-08-07T07:51:41Z

Alien Glitches: updated information on the Hallucinoid

← Older revision		Revision as of 07:51, 7 August 2015
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	* Aliens can't use carried melee weapons (Vibroblades and both types of Thermic Lances), even when they are equipped with them. (This is a game engine bug is present in UFO:EU as well, but it is not relevant to UFO:EU, since in UFO:EU aliens never get equipped with any carried melee weapons.) *		* Aliens can't use carried melee weapons (Vibroblades and both types of Thermic Lances), even when they are equipped with them. (This is a game engine bug is present in UFO:EU as well, but it is not relevant to UFO:EU, since in UFO:EU aliens never get equipped with any carried melee weapons.) *
	* The [[Bio-Drone]]'s melee attack almost always has no effect, even on unarmoured troops. ([[User:Zombie\|Zombie]] has determined the weapon has a base accuracy of 0%, presumably a programming error). This is a serious flaw in the Bio-Drone, as it always uses this attack when Aquanauts are adjacent - especially given that one of the best ways to deal with Bio-Drones is by melee combat. *		* The [[Bio-Drone]]'s melee attack almost always has no effect, even on unarmoured troops. ([[User:Zombie\|Zombie]] has determined the weapon has a base accuracy of 0%, presumably a programming error). This is a serious flaw in the Bio-Drone, as it always uses this attack when Aquanauts are adjacent - especially given that one of the best ways to deal with Bio-Drones is by melee combat. *
	* The [[Hallucinoid]]'s ranged attack only works on land, but the Hallucinoid rarely/never appears on land. Presumably this is a programming error and was meant to be the other way round (only works underwater). The melee attack ~~works normally~~. *		* <s>The [[Hallucinoid]]'s ranged attack only works on land, but the Hallucinoid rarely/never appears on land. Presumably this is a programming error and was meant to be the other way round (only works underwater)</s>. The [[Hallucinoid]] is not given a ranged attack of any kind although the in-game description states that it should have one. It has a melee attack but it deals normal, lethal damage even though its in-game description says that it is icy, leading the player to believe that it should be stun damage. ''This has been verified by several reliable sources and the unit does not appear on land unless the game code or data files have been modified.''
	* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *		* The Deep One attack looks like the Celatid spit / mortar (holdover from UFO). *
	* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *		* The Bio-Drone leaves a burning trail (holdover from the Silacoid in UFO?). *