diff --git a/source/games/blood/src/actor.cpp b/source/games/blood/src/actor.cpp
index e5e456a5d..ff7f98a7a 100644
--- a/source/games/blood/src/actor.cpp
+++ b/source/games/blood/src/actor.cpp
@@ -4503,7 +4503,7 @@ void actAirDrag(DBloodActor* actor, int a2)
 	}
 	actor->add_int_bvel_x(MulScale(wind_x - actor->int_vel().X, a2, 16));
 	actor->add_int_bvel_y(MulScale(wind_y - actor->int_vel().Y, a2, 16));
-	actor->__int_vel.Z -= MulScale(actor->int_vel().Z, a2, 16);
+	actor->add_int_bvel_z(-MulScale(actor->int_vel().Z, a2, 16));
 }
 
 //---------------------------------------------------------------------------
@@ -4705,8 +4705,8 @@ static Collision MoveThing(DBloodActor* actor)
 		if (nVel > 0)
 		{
 			int t = DivScale(nVelClipped, nVel, 16);
-			actor->__int_vel.X -= MulScale(t, actor->int_vel().X, 16);
-			actor->__int_vel.Y -= MulScale(t, actor->int_vel().Y, 16);
+			actor->add_int_bvel_x(-MulScale(t, actor->int_vel().X, 16));
+			actor->add_int_bvel_y(-MulScale(t, actor->int_vel().Y, 16));
 		}
 	}
 	if (actor->__int_vel.X || actor->int_vel().Y)
@@ -5192,8 +5192,8 @@ void MoveDude(DBloodActor* actor)
 		int nDrag = gDudeDrag;
 		if (actor->xspr.height > 0)
 			nDrag -= Scale(gDudeDrag, actor->xspr.height, 0x100);
-		actor->__int_vel.X -= mulscale16r(actor->int_vel().X, nDrag);
-		actor->__int_vel.Y -= mulscale16r(actor->int_vel().Y, nDrag);
+		actor->add_int_bvel_x(-mulscale16r(actor->int_vel().X, nDrag));
+		actor->add_int_bvel_y(-mulscale16r(actor->int_vel().Y, nDrag));
 
 		if (approxDist(actor->int_vel().X, actor->int_vel().Y) < 0x1000)
 			actor->clear_vel_xy();
diff --git a/source/games/blood/src/nnexts.cpp b/source/games/blood/src/nnexts.cpp
index 26f0c7a28..9a37ab8e3 100644
--- a/source/games/blood/src/nnexts.cpp
+++ b/source/games/blood/src/nnexts.cpp
@@ -1726,7 +1726,7 @@ void debrisMove(int listIndex)
 
 		if (pSector->lowerLink) cz += (cz < 0) ? 0x500 : -0x500;
 		if (top > cz && (!(actor->xspr.physAttr & kPhysDebrisFloat) || fz <= bottom << 2))
-			actor->__int_vel.Z -= DivScale((bottom - ceilZ) >> 6, mass, 8);
+			actor->add_int_bvel_z(-DivScale((bottom - ceilZ) >> 6, mass, 8));
 
 		if (fz < bottom)
 			vc = 58254 + ((bottom - fz) * -80099) / div;
@@ -1868,8 +1868,8 @@ void debrisMove(int listIndex)
 	if (actor->xspr.height > 0)
 		nDrag -= Scale(nDrag, actor->xspr.height, 0x100);
 
-	actor->__int_vel.X -= mulscale16r(actor->int_vel().X, nDrag);
-	actor->__int_vel.Y -= mulscale16r(actor->int_vel().Y, nDrag);
+	actor->add_int_bvel_x(-mulscale16r(actor->int_vel().X, nDrag));
+	actor->add_int_bvel_y(-mulscale16r(actor->int_vel().Y, nDrag));
 	if (approxDist(actor->int_vel().X, actor->int_vel().Y) < 0x1000)
 		actor->clear_vel_xy();
 }
diff --git a/source/games/blood/src/player.cpp b/source/games/blood/src/player.cpp
index 86cab3875..45f292941 100644
--- a/source/games/blood/src/player.cpp
+++ b/source/games/blood/src/player.cpp
@@ -1608,7 +1608,7 @@ void ProcessInput(PLAYER* pPlayer)
 			int strafe = pInput->svel;
 			strafe = MulScale(pPosture->sideAccel, strafe, 8);
 			actor->add_int_bvel_x(MulScale(strafe, y, 30));
-			actor->__int_vel.Y -= MulScale(strafe, x, 30);
+			actor->add_int_bvel_y(-MulScale(strafe, x, 30));
 		}
 	}
 	else if (actor->xspr.height < 256)
@@ -1637,7 +1637,7 @@ void ProcessInput(PLAYER* pPlayer)
 			if (actor->xspr.height)
 				strafe = MulScale(strafe, speed, 16);
 			actor->add_int_bvel_x(MulScale(strafe, y, 30));
-			actor->__int_vel.Y -= MulScale(strafe, x, 30);
+			actor->add_int_bvel_y(-MulScale(strafe, x, 30));
 		}
 	}
 
@@ -1656,7 +1656,7 @@ void ProcessInput(PLAYER* pPlayer)
 	switch (pPlayer->posture) {
 	case 1:
 		if (pInput->actions & SB_JUMP)
-			actor->__int_vel.Z -= pPosture->normalJumpZ;//0x5b05;
+			actor->add_int_bvel_z(-pPosture->normalJumpZ);//0x5b05;
 		if (pInput->actions & SB_CROUCH)
 			actor->add_int_bvel_z(pPosture->normalJumpZ);//0x5b05;
 		break;