protocol: send scale values

src/client/cl_entities.c

@@ -205,6 +205,9 @@ CL_AddPacketEntities(frame_t *frame)
 				ent.skin = NULL;
 				ent.model = cl.model_draw[s1->modelindex];
 			}
+
+			/* store scale */
+			VectorCopy(s1->scale, ent.scale);
 		}
 
 		/* only used for black hole model right now */

src/client/cl_parse.c

@@ -157,6 +157,17 @@ CL_ParseDelta(entity_state_t *from, entity_state_t *to, int number, int bits)
 		}
 	}
 
+	if (cls.serverProtocol != PROTOCOL_VERSION)
+	{
+		int i;
+
+		/* Always set scale to 1.0f for old clients */
+		for (i = 0; i < 3; i++)
+		{
+			to->scale[i] = 1.0f;
+		}
+	}
+
 	if (IS_QII97_PROTOCOL(cls.serverProtocol))
 	{
 		if (bits & U_MODEL)
@@ -224,6 +235,16 @@ CL_ParseDelta(entity_state_t *from, entity_state_t *to, int number, int bits)
 	if ((bits & U_SKIN8) && (bits & U_SKIN16))
 	{
 		to->skinnum = MSG_ReadLong(&net_message);
+		/* Additional scale with skinnum */
+		if (cls.serverProtocol == PROTOCOL_VERSION)
+		{
+			int i;
+
+			for (i = 0; i < 3; i++)
+			{
+				to->scale[i] = MSG_ReadFloat(&net_message);
+			}
+		}
 	}
 	else if (bits & U_SKIN8)
 	{

src/common/movemsg.c

@@ -518,6 +518,15 @@ MSG_WriteDeltaEntity(entity_state_t *from,
 		}
 	}
 
+	/* Scale with skins if force or different */
+	if ((protocol == PROTOCOL_VERSION) &&
+		((to->scale[0] != from->scale[0]) ||
+		 (to->scale[1] != from->scale[1]) ||
+		 (to->scale[2] != from->scale[2])))
+	{
+		bits |= (U_SKIN8 | U_SKIN16);
+	}
+
 	if (to->frame != from->frame)
 	{
 		if (to->frame < 256)
@@ -723,6 +732,17 @@ MSG_WriteDeltaEntity(entity_state_t *from,
 	if ((bits & U_SKIN8) && (bits & U_SKIN16)) /*used for laser colors */
 	{
 		MSG_WriteLong(msg, to->skinnum);
+
+		/* Send scale */
+		if (protocol == PROTOCOL_VERSION)
+		{
+			int i;
+
+			for (i = 0; i < 3; i++)
+			{
+				MSG_WriteFloat(msg, to->scale[i]);
+			}
+		}
 	}
 
 	else if (bits & U_SKIN8)