ProjectileInfo

2 files changed, 298 insertions, 10 deletions

diff --git a/src/weapons/ProjectileInfo.cpp b/src/weapons/ProjectileInfo.cpp
index efb9dab3..85edf970 100644
--- a/src/weapons/ProjectileInfo.cpp
+++ b/src/weapons/ProjectileInfo.cpp
@@ -1,17 +1,302 @@
 #include "common.h"
 #include "patcher.h"
+#include "Camera.h"
+#include "General.h"
+#include "Heli.h"
+#include "ModelIndices.h"
+#include "Particle.h"
+#include "Ped.h"
+#include "Plane.h"
 #include "ProjectileInfo.h"
 #include "Projectile.h"
+#include "Explosion.h"
+#include "Weapon.h"
+#include "World.h"
 
-CProjectileInfo* gaProjectileInfo = (CProjectileInfo*)0x64ED50;
+CProjectileInfo (&gaProjectileInfo)[32] = *(CProjectileInfo(*)[32])*(uintptr*)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); }
+void
+CProjectileInfo::Initialise()
+{
+	debug("Initialising CProjectileInfo...\n");
+
+	for (int i = 0; i < ARRAY_SIZE(ms_apProjectile); i++) {
+		ms_apProjectile[i] = nil;
+		gaProjectileInfo[i].m_eWeaponType = WEAPONTYPE_GRENADE;
+		gaProjectileInfo[i].m_pSource = nil;
+		gaProjectileInfo[i].m_nExplosionTime = 0;
+		gaProjectileInfo[i].m_bInUse = false;
+	}
+
+	debug("CProjectileInfo ready\n");
+}
+
+void
+CProjectileInfo::Shutdown()
+{
+	debug("Shutting down CProjectileInfo...\n");
+	debug("CProjectileInfo shut down\n");
+}
 
 CProjectileInfo*
 CProjectileInfo::GetProjectileInfo(int32 id)
 {
 	return &gaProjectileInfo[id];
 }
+
+bool
+CProjectileInfo::AddProjectile(CEntity *entity, eWeaponType weapon, CVector pos, float speed)
+{
+	int8 SpecialCollisionResponseCase = COLLRESPONSE_NONE;
+	bool gravity = true;
+	CMatrix matrix;
+	float elasticity = 0.75f;
+	CPed* ped = (CPed*)entity;
+	int time;
+	CVector velocity;
+
+	switch (weapon)
+	{
+	case WEAPONTYPE_ROCKETLAUNCHER:
+	{
+		float vy = 1.25f;
+		time = CTimer::GetTimeInMilliseconds() + 1400;
+		if (ped->IsPlayer()) {
+			matrix.GetForward() = TheCamera.Cams[TheCamera.ActiveCam].Front;
+			matrix.GetUp() = TheCamera.Cams[TheCamera.ActiveCam].Up;
+			matrix.GetRight() = CrossProduct(TheCamera.Cams[TheCamera.ActiveCam].Up, TheCamera.Cams[TheCamera.ActiveCam].Front);
+			matrix.GetPosition() = pos;
+		} else if (ped->m_pSeekTarget != nil) {
+				float ry = CGeneral::GetRadianAngleBetweenPoints(1.0f, ped->m_pSeekTarget->GetPosition().z, 1.0f, pos.z);
+				float rz = atan2(-ped->GetForward().x, ped->GetForward().y);
+				vy = 0.35f * speed + 0.15f;
+				matrix.SetTranslate(0.0f, 1.0f, 1.0f);
+				matrix.Rotate(0.0f, ry, rz);
+				matrix.GetPosition() += pos;
+		} else {
+			matrix = ped->GetMatrix();
+		}
+		velocity = Multiply3x3(matrix, CVector(0.0f, vy, 0.0f));
+		gravity = false;
+		break;
+	}
+	case WEAPONTYPE_FLAMETHROWER:
+		Error("Undefined projectile type, AddProjectile, ProjectileInfo.cpp");
+		break;
+	case WEAPONTYPE_MOLOTOV:
+	{
+		time = CTimer::GetTimeInMilliseconds() + 2000;
+		float scale = 0.22f * speed + 0.15f;
+		if (scale >= 0.2f)
+			scale = 0.2f;
+		float angle = atan2(-ped->GetForward().x, ped->GetForward().y);
+		matrix.SetTranslate(0.0f, 0.0f, 0.0f);
+		matrix.RotateZ(angle);
+		matrix.GetPosition() += pos;
+		velocity.x = -1.0f * scale * Sin(angle);
+		velocity.y = scale * Cos(angle);
+		velocity.z = (0.2f * speed + 0.4f) * scale;
+		break;
+	}
+	case WEAPONTYPE_GRENADE:
+	{
+		time = CTimer::GetTimeInMilliseconds() + 2000;
+		float scale = 0.0f;
+		if (speed != 0.0f)
+			scale = 0.22f * speed + 0.15f;
+		float angle = atan2(-ped->GetForward().x, ped->GetForward().y);;
+		matrix.SetTranslate(0.0f, 0.0f, 0.0f);
+		matrix.RotateZ(angle);
+		matrix.GetPosition() += pos;
+		SpecialCollisionResponseCase = COLLRESPONSE_UNKNOWN5;
+		velocity.x = -1.0f * scale * Sin(angle);
+		velocity.y = scale * Cos(angle);
+		velocity.z = (0.4f * speed + 0.4f) * scale;
+		elasticity = 0.5f;
+		break;
+	}
+	}
+
+	int i = 0;
+	while (gaProjectileInfo[i].m_bInUse && i < ARRAY_SIZE(gaProjectileInfo)) i++;
+
+	if (i == ARRAY_SIZE(gaProjectileInfo))
+		return false;
+
+	switch (weapon)
+	{
+	case WEAPONTYPE_ROCKETLAUNCHER:
+		ms_apProjectile[i] = new CProjectile(MI_MISSILE);
+		break;
+	case WEAPONTYPE_FLAMETHROWER:
+		break;
+	case WEAPONTYPE_MOLOTOV:
+		ms_apProjectile[i] = new CProjectile(MI_MOLOTOV);
+		break;
+	case WEAPONTYPE_GRENADE:
+		ms_apProjectile[i] = new CProjectile(MI_GRENADE);
+		break;
+	}
+
+	if (ms_apProjectile[i] == nil)
+		return false;
+
+	gaProjectileInfo[i].m_eWeaponType = weapon;
+	gaProjectileInfo[i].m_pSource = ped;
+	ms_apProjectile[i]->GetMatrix() = matrix;
+	ms_apProjectile[i]->SetMoveSpeed(velocity);
+	ms_apProjectile[i]->bAffectedByGravity = gravity;
+
+	gaProjectileInfo[i].m_nExplosionTime = time;
+	ms_apProjectile[i]->m_fElasticity = elasticity;
+	ms_apProjectile[i]->m_nSpecialCollisionResponseCases = SpecialCollisionResponseCase;
+
+	gaProjectileInfo[i].m_bInUse = true;
+	CWorld::Add(ms_apProjectile[i]);
+
+	gaProjectileInfo[i].m_vecPos = ms_apProjectile[i]->GetPosition();
+	return true;
+}
+
+void
+CProjectileInfo::RemoveProjectile(CProjectileInfo *info, CProjectile *projectile)
+{
+	RemoveNotAdd(info->m_pSource, info->m_eWeaponType, projectile->GetPosition());
+
+	info->m_bInUse = false;
+	CWorld::Remove(projectile);
+	delete projectile;
+}
+
+void
+CProjectileInfo::RemoveNotAdd(CEntity* entity, eWeaponType weaponType, CVector pos)
+{
+	switch (weaponType)
+	{
+	case WEAPONTYPE_GRENADE:
+		CExplosion::AddExplosion(nil, entity, EXPLOSION_GRENADE, pos, 0);
+		break;
+	case WEAPONTYPE_MOLOTOV:
+		CExplosion::AddExplosion(nil, entity, EXPLOSION_MOLOTOV, pos, 0);
+		break;
+	case WEAPONTYPE_ROCKETLAUNCHER:
+		CExplosion::AddExplosion(nil, entity, EXPLOSION_ROCKET, pos, 0);
+		break;
+	}
+}
+
+void
+CProjectileInfo::Update()
+{
+	for (int i = 0; i < ARRAY_SIZE(gaProjectileInfo); i++) {
+		if (!gaProjectileInfo[i].m_bInUse) continue;
+
+		CPed *ped = (CPed*)gaProjectileInfo[i].m_pSource;
+		if (ped != nil && ped->m_type == ENTITY_TYPE_PED && !ped->IsPointerValid())
+			gaProjectileInfo[i].m_pSource = nil;
+
+		if (ms_apProjectile[i] == nil) {
+			gaProjectileInfo[i].m_bInUse = false;
+			continue;
+		}
+
+		if (gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_ROCKETLAUNCHER) {
+			CParticle::AddParticle(PARTICLE_SMOKE, ms_apProjectile[i]->GetPosition(), CVector(0.0f, 0.0f, 0.0f));
+		}
+
+		if (CTimer::GetTimeInMilliseconds() <= gaProjectileInfo[i].m_nExplosionTime) {
+			if (gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_ROCKETLAUNCHER) {
+				CVector pos = ms_apProjectile[i]->GetPosition();
+				CWorld::pIgnoreEntity = ms_apProjectile[i];
+				if (ms_apProjectile[i]->bHasCollided
+					|| !CWorld::GetIsLineOfSightClear(gaProjectileInfo[i].m_vecPos, pos, true, true, true, true, false, false)
+					|| gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_ROCKETLAUNCHER && (CHeli::TestRocketCollision(&pos) || CPlane::TestRocketCollision(&pos))) {
+					RemoveProjectile(&gaProjectileInfo[i], ms_apProjectile[i]);
+				}
+				CWorld::pIgnoreEntity = nil;
+			} else if (gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_MOLOTOV) {
+				CVector pos = ms_apProjectile[i]->GetPosition();
+				CWorld::pIgnoreEntity = ms_apProjectile[i];
+
+				if (gaProjectileInfo[i].m_pSource == nil 
+					|| ((gaProjectileInfo[i].m_vecPos - gaProjectileInfo[i].m_pSource->GetPosition()).MagnitudeSqr() >= 2.0f))
+				{
+					if (ms_apProjectile[i]->bHasCollided
+						|| !CWorld::GetIsLineOfSightClear(gaProjectileInfo[i].m_vecPos, pos, true, true, true, true, false, false)
+						|| gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_ROCKETLAUNCHER && (CHeli::TestRocketCollision(&pos) || CPlane::TestRocketCollision(&pos))) {
+						RemoveProjectile(&gaProjectileInfo[i], ms_apProjectile[i]);
+					}
+				}
+				CWorld::pIgnoreEntity = nil;
+			}
+		} else {
+			RemoveProjectile(&gaProjectileInfo[i], ms_apProjectile[i]);
+		}
+
+		gaProjectileInfo[i].m_vecPos = ms_apProjectile[i]->GetPosition();
+	}
+}
+
+bool
+CProjectileInfo::IsProjectileInRange(float x1, float x2, float y1, float y2, float z1, float z2, bool remove)
+{
+	bool result = false;
+	for (int i = 0; i < ARRAY_SIZE(ms_apProjectile); i++) {
+		if (gaProjectileInfo[i].m_bInUse) {
+			if (gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_ROCKETLAUNCHER || gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_MOLOTOV || gaProjectileInfo[i].m_eWeaponType == WEAPONTYPE_GRENADE) {
+				CVector &pos = ms_apProjectile[i]->GetPosition();
+				if (pos.x >= x1 && pos.x <= x2 && pos.y >= y1 && pos.y <= y2 && pos.z >= z1 && pos.z <= z2) {
+					result = true;
+					if (remove) {
+						gaProjectileInfo[i].m_bInUse = false;
+						CWorld::Remove(ms_apProjectile[i]);
+						delete ms_apProjectile[i];
+					}
+				}
+			}
+		}
+	}
+	return result;
+}
+
+void
+CProjectileInfo::RemoveAllProjectiles()
+{
+	for (int i = 0; i < ARRAY_SIZE(ms_apProjectile); i++) {
+		if (gaProjectileInfo[i].m_bInUse) {
+			gaProjectileInfo[i].m_bInUse = false;
+			CWorld::Remove(ms_apProjectile[i]);
+			delete ms_apProjectile[i];
+		}
+	}
+}
+
+bool
+CProjectileInfo::RemoveIfThisIsAProjectile(CObject* object)
+{
+	int i = 0;
+	while (ms_apProjectile[i++] != object) {
+		if (i >= ARRAY_SIZE(ms_apProjectile))
+			return false;
+	}
+
+	gaProjectileInfo[i].m_bInUse = false;
+	CWorld::Remove(ms_apProjectile[i]);
+	delete ms_apProjectile[i];
+	ms_apProjectile[i] = nil;
+	return true;
+}
+
+STARTPATCHES
+	InjectHook(0x55ADF0, CProjectileInfo::Initialise, PATCH_JUMP);
+	InjectHook(0x55AFF0, CProjectileInfo::Shutdown, PATCH_JUMP);
+	InjectHook(0x55B010, CProjectileInfo::GetProjectileInfo, PATCH_JUMP);
+	InjectHook(0x55B030, CProjectileInfo::AddProjectile, PATCH_JUMP);
+	InjectHook(0x55B700, CProjectileInfo::RemoveProjectile, PATCH_JUMP);
+	InjectHook(0x55B770, CProjectileInfo::RemoveNotAdd, PATCH_JUMP);
+	InjectHook(0x55B7C0, CProjectileInfo::Update, PATCH_JUMP);
+	InjectHook(0x55BA50, CProjectileInfo::IsProjectileInRange, PATCH_JUMP);
+	InjectHook(0x55BB80, CProjectileInfo::RemoveAllProjectiles, PATCH_JUMP);
+	InjectHook(0x55BBD0, CProjectileInfo::RemoveIfThisIsAProjectile, PATCH_JUMP);
+ENDPATCHES
diff --git a/src/weapons/ProjectileInfo.h b/src/weapons/ProjectileInfo.h
index 7a1b5b53..f44b22c9 100644
--- a/src/weapons/ProjectileInfo.h
+++ b/src/weapons/ProjectileInfo.h
@@ -10,20 +10,23 @@ class CProjectileInfo
 public:

 	eWeaponType m_eWeaponType;

 	CEntity* m_pSource;

-	int m_nExplosionTime;

-	char m_bInUse;

-	char field_13;

-	char field_14;

-	char field_15;

+	uint32 m_nExplosionTime;

+	bool m_bInUse;

 	CVector m_vecPos;

 

 public:

 	static CProjectileInfo* GetProjectileInfo(int32 id);

 	static CProjectile* (&ms_apProjectile)[32];

 

+	static void Initialise();

+	static void Shutdown();

+	static bool AddProjectile(CEntity *ped, eWeaponType weapon, CVector pos, float a4);

+	static void RemoveProjectile(CProjectileInfo*, CProjectile*);

+	static void RemoveNotAdd(CEntity *entity, eWeaponType weaponType, CVector pos);

 	static bool RemoveIfThisIsAProjectile(CObject *pObject);

 	static void RemoveAllProjectiles(void);

+	static void Update();

 	static bool IsProjectileInRange(float x1, float x2, float y1, float y2, float z1, float z2, bool remove);

 };

 

-extern CProjectileInfo* gaProjectileInfo;
\ No newline at end of file
+extern CProjectileInfo (&gaProjectileInfo)[32];
\ No newline at end of file