Fixed an issue that jumpjets in air can not correctly spawn missiles

CREDITS.md

@@ -608,6 +608,7 @@ This page lists all the individual contributions to the project by their author.
   - Use `SkipCrushSlowdown=true` to avoid the bug related to `Accelerates=true` and `MovementZone=CrushAll`
   - Auto deploy for GI-like infantry
   - Fix an issue that Ares' Type Conversion not resetting barrel's direction by `FireAngle`
+  - Fix an issue that jumpjets in air can  not correctly spawn missiles
 - **solar-III (凤九歌)**
   - Target scanning delay customization (documentation)
   - Skip target scanning function calling for unarmed technos (documentation)

docs/Fixed-or-Improved-Logics.md

@@ -261,7 +261,8 @@ This page describes all ingame logics that are fixed or improved in Phobos witho
 - `DeployingAnim` now supports both `Normalized=true` and `Reverse=true`. Keep in mind `Reverse` uses `LoopEnd` for frame amount instead of `End` even without `LoopCount` > 1.
 - `DeployingAnim` using unit drawer now also tint accordingly with the unit.
 - Fixed the bug that armor multiplier of new attacheffect will have extra take effect once if restricted warheads.
-- Fixed an issue that units' `LaserTrails` will always lags behind by one frame
+- Fixed an issue that units' `LaserTrails` will always lags behind by one frame.
+- Fixed an issue that jumpjets in air can not correctly spawn missiles.
 
 ## Fixes / interactions with other extensions
 

docs/Whats-New.md

@@ -462,6 +462,7 @@ Vanilla fixes:
 - If `DeployingAnim` with `Shadow=true` is played for unit currently in air its shadow will now be drawn on ground (by Starkku)
 - `DeployingAnim` now supports both `Normalized=true` and `Reverse=true` (by Starkku)
 - `DeployingAnim` using unit drawer now also tint accordingly with the unit (by Starkku)
+- Jumpjets in air now can correctly spawn missiles (by TaranDahl)
 
 Phobos fixes:
 - Fixed the bug that `AllowAirstrike=no` cannot completely prevent air strikes from being launched against it (by NetsuNegi)

src/Ext/Techno/Hooks.Misc.cpp

@@ -2,6 +2,7 @@
 
 #include <SpawnManagerClass.h>
 #include <TunnelLocomotionClass.h>
+#include <JumpjetLocomotionClass.h>
 
 #include <Ext/Anim/Body.h>
 
@@ -79,6 +80,21 @@ DEFINE_HOOK(0x6B7265, SpawnManagerClass_AI_UpdateTimer, 0x6)
 	return 0;
 }
 
+// Fix Jumpjets can not spawn missiles in air.
+DEFINE_HOOK(0x6B72FE, SpawnerManagerClass_Update_MissileCheck, 0x9)
+{
+	enum { SpawnMissile = 0x6B735C, NoSpawn = 0x6B795A };
+
+	GET(SpawnManagerClass*, pThis, ESI);
+
+	auto pLoco = ((FootClass*)pThis->Owner)->Locomotor; // Ares has already handled the building case.
+	auto pLocoInterface = pLoco.GetInterfacePtr();
+
+	return (pLocoInterface->Is_Moving_Now() ||
+		locomotion_cast<JumpjetLocomotionClass*>(pLoco) ? false : pLocoInterface->Is_Moving()) // Jumpjet should only check Is_Moving_Now.
+		? NoSpawn : SpawnMissile;
+}
+
 DEFINE_HOOK_AGAIN(0x6B73BE, SpawnManagerClass_AI_SpawnTimer, 0x6)
 DEFINE_HOOK(0x6B73AD, SpawnManagerClass_AI_SpawnTimer, 0x5)
 {