diff --git a/source/common/utility/m_fixed.h b/source/common/utility/m_fixed.h
index 1c9a08a42..bf7778e79 100644
--- a/source/common/utility/m_fixed.h
+++ b/source/common/utility/m_fixed.h
@@ -9,7 +9,6 @@
 __forceinline constexpr int32_t MulScale(int32_t a, int32_t b, int32_t shift) { return (int32_t)(((int64_t)a * b) >> shift); }
 __forceinline constexpr double MulScaleF(double a, double b, int32_t shift) { return (a * b) * (1. / (uint32_t(1) << shift)); }
 __forceinline constexpr int32_t DMulScale(int32_t a, int32_t b, int32_t c, int32_t d, int32_t shift) { return (int32_t)(((int64_t)a * b + (int64_t)c * d) >> shift); }
-__forceinline constexpr int32_t TMulScale(int32_t a, int32_t b, int32_t c, int32_t d, int32_t e, int32_t f, int32_t shift) { return (int32_t)(((int64_t)a * b + (int64_t)c * d + (int64_t)e * f) >> shift); }
 __forceinline constexpr int32_t DivScale(int32_t a, int32_t b, int shift) { return (int32_t)(((int64_t)a << shift) / b); }
 __forceinline constexpr int64_t DivScaleL(int64_t a, int64_t b, int shift) { return ((a << shift) / b); }
 
diff --git a/source/games/blood/src/actor.cpp b/source/games/blood/src/actor.cpp
index f1498ae36..6f84f48b9 100644
--- a/source/games/blood/src/actor.cpp
+++ b/source/games/blood/src/actor.cpp
@@ -2612,20 +2612,20 @@ DVector4 actFloorBounceVector(DBloodActor* actor, double oldz, sectortype* pSect
 	}
 
 	walltype* pWall = pSector->firstWall();
-	auto p = actor->int_vel();
-	int angle = getangle(pWall->delta()) + 512;
-	int t2 = pSector->floorheinum << 4;
-	int t3 = approxDist(-0x10000, t2);
-	int t4 = DivScale(-0x10000, t3, 16);
-	int t5 = DivScale(t2, t3, 16);
-	int t6 = MulScale(t5, Cos(angle), 30);
-	int t7 = MulScale(t5, Sin(angle), 30);
-	int t8 = TMulScale(p.X, t6, p.Y, t7, oldz, t4, 16);
-	int t9 = MulScale(t8, 0x10000 + FloatToFixed(factor), 16);
-	retval.X = FixedToFloat(p.X - MulScale(t6, t9, 16));
-	retval.Y = FixedToFloat(p.Y - MulScale(t7, t9, 16));
-	retval.Z = FixedToFloat(oldz - MulScale(t4, t9, 16));
-	retval.W = FixedToFloat(t8 * t);
+	DVector3 p(actor->vel.XY(), oldz);
+	DAngle angle = pWall->delta().Angle() + DAngle90;
+	auto t2 = pSector->floorheinum * (1. / 4096.);
+	auto t3 = DVector2(-1, t2).Length();
+	auto t4 = -1 / t3;
+	auto t5 = t2 / t3;
+	auto t6 = t5 * angle.Cos();
+	auto t7 = t5 * angle.Sin();
+	auto t8 = p.dot(DVector3(t6, t7, t4));
+	auto t9 = t8 * (1 + factor);
+	retval.X = p.X - (t6 * t9);
+	retval.Y = p.Y - (t7 * t9);
+	retval.Z = p.Z - (t4 * t9);
+	retval.W = t8 * t;
 	return retval;
 }