1 files changed, 61 insertions, 0 deletions
diff --git a/src/vehicles/Boat.cpp b/src/vehicles/Boat.cpp
index e46d7247..53a912b3 100644
--- a/src/vehicles/Boat.cpp
+++ b/src/vehicles/Boat.cpp
@@ -2,6 +2,17 @@
 #include "patcher.h"
 #include "Boat.h"
 
+float &fShapeLength = *(float*)0x600E78;
+float &fShapeTime   = *(float*)0x600E7C;
+float &fRangeMult   = *(float*)0x600E80; //0.6f; // 0.75f gta 3
+float &fTimeMult = *(float*)0xA0FCF4;
+
+float MAX_WAKE_LENGTH = 50.0f;
+float MIN_WAKE_INTERVAL = 1.0f;
+float WAKE_LIFETIME = 400.0f;
+
+CBoat * (&CBoat::apFrameWakeGeneratingBoats)[4] = *(CBoat * (*)[4])*(uintptr*)0x8620E0;
+
 CBoat::CBoat(int mi, uint8 owner)
 {
 	ctor(mi, owner);
@@ -9,6 +20,56 @@ CBoat::CBoat(int mi, uint8 owner)
 
 WRAPPER CBoat* CBoat::ctor(int, uint8) { EAXJMP(0x53E3E0); }
 
+bool CBoat::IsSectorAffectedByWake(CVector2D sector, float fSize, CBoat **apBoats)
+{
+	uint8 numVerts = 0;
+	
+	if ( apFrameWakeGeneratingBoats[0] == NULL )
+		return false;
+	
+	for ( int32 i = 0; i < 4; i++ )
+	{
+		CBoat *pBoat = apFrameWakeGeneratingBoats[i];
+		if ( !pBoat )
+			break;
+		
+		for ( int j = 0; j < pBoat->m_nNumWakePoints; j++ )
+		{
+			 float fDist = (WAKE_LIFETIME - pBoat->m_afWakePointLifeTime[j]) * fShapeTime + float(j) * fShapeLength + fSize;
+			 
+			 if ( fabs(pBoat->m_avec2dWakePoints[j].x - sector.x) < fDist
+				&& fabs(pBoat->m_avec2dWakePoints[i].y - sector.y) < fDist )
+			 {
+				 apBoats[numVerts] = pBoat;
+				 numVerts = 1; // += ?
+				 break;
+			 }
+		}
+	}
+	
+	return numVerts != 0;
+}
+
+float CBoat::IsVertexAffectedByWake(CVector vecVertex, CBoat *pBoat)
+{
+	for ( int i = 0; i < pBoat->m_nNumWakePoints; i++ )
+	{
+		float fMaxDist = (WAKE_LIFETIME - pBoat->m_afWakePointLifeTime[i]) * fShapeTime + float(i) * fShapeLength;
+		
+		float fX = pBoat->m_avec2dWakePoints[i].x - vecVertex.x;
+		float fY = pBoat->m_avec2dWakePoints[i].y - vecVertex.y;
+		
+		float fDist = fY * fY + fX * fX;
+		
+		if ( fDist < SQR(fMaxDist) )
+			return 1.0f - min(fRangeMult * sqrt(fDist / SQR(fMaxDist)) + (WAKE_LIFETIME - pBoat->m_afWakePointLifeTime[i]) * fTimeMult, 1.0f);
+	}
+
+	return 0.0f;
+}
+
+WRAPPER void CBoat::FillBoatList(void) { EAXJMP(0x542250); }
+
 class CBoat_ : public CBoat
 {
 public: