From 607175f02a3f89665c953d09c603183f909cc15b Mon Sep 17 00:00:00 2001
From: Nikolay Korolev <nickvnuk@gmail.com>
Date: Sat, 23 May 2020 20:06:52 +0300
Subject: set pieces

---
 src/control/CarCtrl.cpp | 44 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 42 insertions(+), 2 deletions(-)

(limited to 'src/control/CarCtrl.cpp')

diff --git a/src/control/CarCtrl.cpp b/src/control/CarCtrl.cpp
index b250cb97..5e8324ed 100644
--- a/src/control/CarCtrl.cpp
+++ b/src/control/CarCtrl.cpp
@@ -971,7 +971,8 @@ CCarCtrl::PossiblyRemoveVehicle(CVehicle* pVehicle)
 			pVehicle->GetModelIndex() == MI_AMBULAN ||
 			pVehicle->GetModelIndex() == MI_FIRETRUCK ||
 			pVehicle->bIsLawEnforcer ||
-			pVehicle->bIsCarParkVehicle
+			pVehicle->bIsCarParkVehicle ||
+			CTimer::GetTimeInMilliseconds() < pVehicle->m_nSetPieceExtendedRangeTime
 			){
 			threshold = ONSCREEN_DESPAWN_RANGE * TheCamera.GenerationDistMultiplier;
 		}
@@ -2515,7 +2516,7 @@ void CCarCtrl::SteerAICarWithPhysics_OnlyMission(CVehicle* pVehicle, float* pSwe
 			pSwerve, pAccel, pBrake, pHandbrake);
 		return;
 	case MISSION_BLOCKPLAYER_FORWARDANDBACK:
-		//SteerAICarBlockingPlayerForwardAndBack(pVehicle, pSwerve, pAccel, pBrake, pHandbrake);
+		SteerAICarBlockingPlayerForwardAndBack(pVehicle, pSwerve, pAccel, pBrake, pHandbrake);
 		return;
 	default:
 		assert(0);
@@ -2523,6 +2524,45 @@ void CCarCtrl::SteerAICarWithPhysics_OnlyMission(CVehicle* pVehicle, float* pSwe
 	}
 }
 
+void CCarCtrl::SteerAICarBlockingPlayerForwardAndBack(CVehicle* pVehicle, float* pSwerve, float* pAccel, float* pBrake, bool* pHandbrake)
+{
+	*pSwerve = 0.0f;
+	*pHandbrake = false;
+	CVector player = FindPlayerSpeed() + 0.1f * FindPlayerEntity()->GetForward();
+	player.z = 0.0f;
+	CVector right(pVehicle->GetRight().x, pVehicle->GetRight().y, 0.0f);
+	right.Normalise();
+	CVector forward(pVehicle->GetForward().x, pVehicle->GetForward().y, 0.0f);
+	forward.Normalise();
+	float dpPlayerAndRight = DotProduct(player, right);
+	if (dpPlayerAndRight == 0.0f)
+		dpPlayerAndRight = 0.01f;
+	float dpDiffAndRight = -DotProduct((FindPlayerCoors() - pVehicle->GetPosition()), right) / dpPlayerAndRight;
+	if (dpDiffAndRight < 0.0f) {
+		*pAccel = 0.0f;
+		*pBrake = 0.0f;
+		return;
+	}
+	float dpSpeedAndForward = DotProduct(pVehicle->GetMoveSpeed(), forward);
+	float dpPlayerAndForward = DotProduct(player, forward);
+	float dpDiffAndForward = DotProduct((FindPlayerCoors() - pVehicle->GetPosition()), forward);
+	float multiplier = dpPlayerAndForward * dpDiffAndRight + dpDiffAndForward - dpSpeedAndForward * dpDiffAndRight;
+	if (multiplier > 0) {
+		*pAccel = Min(1.0f, 0.1f * multiplier);
+		*pBrake = 0.0f;
+	}
+	else if (dpSpeedAndForward > 0) {
+		*pAccel = 0.0f;
+		*pBrake = Min(1.0f, -0.1f * multiplier);
+		if (*pBrake > 0.95f)
+			*pHandbrake = true;
+	}
+	else {
+		*pAccel = Max(-1.0f, 0.1f * multiplier);
+		*pBrake = 0.0f;
+	}
+}
+
 void CCarCtrl::SteerAIBoatWithPhysicsHeadingForTarget(CVehicle* pVehicle, float targetX, float targetY, float* pSwerve, float* pAccel, float* pBrake)
 {
 	CVector2D forward = pVehicle->GetForward();
-- 
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