From bc9e7c146126bdd65f79c8fb5f37930d41b2816e Mon Sep 17 00:00:00 2001
From: James R <justsomejames2@gmail.com>
Date: Tue, 25 Oct 2022 22:20:20 -0700
Subject: [PATCH] Disable sprite/model rotation on slopes for now

---
 src/hardware/hw_md2.c | 5 +++++
 src/p_mobj.c          | 5 +++++
 src/r_patchrotation.c | 4 ++++
 3 files changed, 14 insertions(+)

diff --git a/src/hardware/hw_md2.c b/src/hardware/hw_md2.c
index f0108969f..fca3af217 100644
--- a/src/hardware/hw_md2.c
+++ b/src/hardware/hw_md2.c
@@ -1630,8 +1630,13 @@ boolean HWR_DrawModel(gl_vissprite_t *spr)
 			}
 		}
 
+#if 0
 		p.anglez = FIXED_TO_FLOAT(AngleFixed(interp.pitch));
 		p.anglex = FIXED_TO_FLOAT(AngleFixed(interp.roll));
+#else
+		p.anglez = 0.f;
+		p.anglex = 0.f;
+#endif
 
 		p.flip = atransform.flip;
 		p.mirror = atransform.mirror;
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 9a889d516..a25b5643b 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -1556,6 +1556,7 @@ void P_CheckGravity(mobj_t *mo, boolean affect)
 //
 void P_SetPitchRollFromSlope(mobj_t *mo, pslope_t *slope)
 {
+#if 0
 	if (slope)
 	{
 		fixed_t tempz = slope->normal.z;
@@ -1569,6 +1570,10 @@ void P_SetPitchRollFromSlope(mobj_t *mo, pslope_t *slope)
 	{
 		mo->pitch = mo->roll = 0;
 	}
+#else
+	(void)mo;
+	(void)slope;
+#endif
 }
 
 #define STOPSPEED (FRACUNIT)
diff --git a/src/r_patchrotation.c b/src/r_patchrotation.c
index a17b725d6..b0cbeaa42 100644
--- a/src/r_patchrotation.c
+++ b/src/r_patchrotation.c
@@ -26,6 +26,7 @@ angle_t R_ModelRotationAngle(interpmobjstate_t *interp)
 
 angle_t R_SpriteRotationAngle(interpmobjstate_t *interp)
 {
+#if 0
 	angle_t viewingAngle = R_PointToAngle(interp->x, interp->y);
 
 	fixed_t pitchMul = -FINESINE(viewingAngle >> ANGLETOFINESHIFT);
@@ -34,6 +35,9 @@ angle_t R_SpriteRotationAngle(interpmobjstate_t *interp)
 	angle_t rollOrPitch = FixedMul(interp->pitch, pitchMul) + FixedMul(interp->roll, rollMul);
 
 	return (rollOrPitch + R_ModelRotationAngle(interp));
+#else
+	return R_ModelRotationAngle(interp);
+#endif
 }
 
 INT32 R_GetRollAngle(angle_t rollangle)