Fixing Projectile code

src/audio/AudioManager.cpp

@@ -8,7 +8,6 @@
 #include "Automobile.h"
 #include "Boat.h"
 #include "Bridge.h"
-#include "CProjectileInfo.h"
 #include "Camera.h"
 #include "DMAudio.h"
 #include "Entity.h"
@@ -25,6 +24,8 @@
 #include "Plane.h"
 #include "PlayerPed.h"
 #include "Pools.h"
+#include "Projectile.h"
+#include "ProjectileInfo.h"
 #include "Replay.h"
 #include "Stats.h"
 #include "SurfaceTable.h"
@@ -6954,7 +6955,7 @@ cAudioManager::ProcessProjectiles()
 			}
 			m_sQueueSample.field_48 = 4.0;
 			m_sQueueSample.field_76 = 3;
-			m_sQueueSample.m_vecPos = CProjectileInfo::ms_apProjectile[i].GetPosition();
+			m_sQueueSample.m_vecPos = CProjectileInfo::ms_apProjectile[i]->GetPosition();
 			float distSquared = GetDistanceSquared(&m_sQueueSample.m_vecPos);
 			if(distSquared < maxDist) {
 				m_sQueueSample.m_fDistance = Sqrt(distSquared);

src/objects/ObjectData.cpp

@@ -57,7 +57,7 @@ CObjectData::Initialise(const char *filename)
 			&ms_aObjectInfo[id].m_fCollisionDamageMultiplier,
 			&damageEffect, &responseCase, &camAvoid);
 
-		ms_aObjectInfo[id].m_fBuoyancy = 100.0f/percentSubmerged * 0.008*ms_aObjectInfo[id].m_fMass;
+		ms_aObjectInfo[id].m_fBuoyancy = 100.0f/percentSubmerged * GRAVITY *ms_aObjectInfo[id].m_fMass;
 		ms_aObjectInfo[id].m_nCollisionDamageEffect = damageEffect;
 		ms_aObjectInfo[id].m_nSpecialCollisionResponseCases = responseCase;
 		ms_aObjectInfo[id].m_bCameraToAvoidThisObject = camAvoid;

src/objects/Projectile.cpp

@@ -2,12 +2,26 @@
 #include "patcher.h"
 #include "Projectile.h"
 
+CProjectile::CProjectile(int32 model) : CObject()
+{
+	m_fMass = 1.0f;
+	m_fTurnMass = 1.0f;
+	m_fAirResistance = 0.99f;
+	m_fElasticity = 0.75f;
+	m_fBuoyancy = GRAVITY * m_fMass * 0.1f;
+	bExplosionProof = true;
+	SetModelIndex(model);
+	ObjectCreatedBy = MISSION_OBJECT;
+}
+
 class CProjectile_ : public CProjectile
 {
 public:
+	CProjectile* ctor(int32 model) { return ::new (this) CProjectile(model); }
 	void dtor(void) { CProjectile::~CProjectile(); }
 };
 
 STARTPATCHES
+	InjectHook(0x4BFE30, &CProjectile_::ctor, PATCH_JUMP);
 	InjectHook(0x4BFED0, &CProjectile_::dtor, PATCH_JUMP);
 ENDPATCHES

src/objects/Projectile.h

@@ -7,4 +7,5 @@
 class CProjectile : public CObject
 {
 public:
+	CProjectile(int32);
 };

src/weapons/ProjectileInfo.cpp

@@ -3,6 +3,15 @@
 #include "ProjectileInfo.h"
 #include "Projectile.h"
 
+CProjectileInfo* gaProjectileInfo = (CProjectileInfo*)0x64ED50;
+CProjectile* (&CProjectileInfo::ms_apProjectile)[32] = *(CProjectile*(*)[32])*(uintptr*)0x87C748;
+
 WRAPPER void CProjectileInfo::RemoveAllProjectiles(void) { EAXJMP(0x55BB80); }
 WRAPPER bool CProjectileInfo::RemoveIfThisIsAProjectile(CObject *pObject) { EAXJMP(0x55BBD0); }
 WRAPPER bool CProjectileInfo::IsProjectileInRange(float x1, float x2, float y1, float y2, float z1, float z2, bool remove) { EAXJMP(0x55BA50); }
+
+CProjectileInfo*
+CProjectileInfo::GetProjectileInfo(int32 id)
+{
+	return &gaProjectileInfo[id];
+}

src/weapons/ProjectileInfo.h

@@ -1,11 +1,29 @@
 #pragma once
 
+class CEntity;
 class CObject;
+class CProjectile;
+enum eWeaponType;
 
 class CProjectileInfo
 {
 public:
+	eWeaponType m_eWeaponType;
+	CEntity* m_pSource;
+	int m_nExplosionTime;
+	char m_bInUse;
+	char field_13;
+	char field_14;
+	char field_15;
+	CVector m_vecPos;
+
+public:
+	static CProjectileInfo* GetProjectileInfo(int32 id);
+	static CProjectile* (&ms_apProjectile)[32];
+
 	static bool RemoveIfThisIsAProjectile(CObject *pObject);
 	static void RemoveAllProjectiles(void);
 	static bool IsProjectileInRange(float x1, float x2, float y1, float y2, float z1, float z2, bool remove);
-};
+};
+
+extern CProjectileInfo* gaProjectileInfo;