From 81dc750857c1b2cc04b9f29fdbbc3e705af043bd Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Fri, 1 Jun 2012 08:19:22 +0900
Subject: [PATCH] Pretend to allow screen offsets.

Because qw's maxclients is always > 1, they'll never work, though :)
---
 qw/include/client.h |  1 +
 qw/source/cl_main.c |  2 ++
 qw/source/cl_view.c | 41 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+)

diff --git a/qw/include/client.h b/qw/include/client.h
index 9fce834d2..9003fd71f 100644
--- a/qw/include/client.h
+++ b/qw/include/client.h
@@ -279,6 +279,7 @@ typedef struct {
 	int			watervis;
 	int			fpd;
 	int			fbskins;
+	int         maxclients;
 
 // refresh related state
 	struct model_s	*worldmodel;	// cl_entitites[0].model
diff --git a/qw/source/cl_main.c b/qw/source/cl_main.c
index 38e09858c..e6c56a0a8 100644
--- a/qw/source/cl_main.c
+++ b/qw/source/cl_main.c
@@ -396,6 +396,8 @@ CL_ClearState (void)
 	memset (&cl, 0, sizeof (cl));
 	r_data->force_fullscreen = 0;
 
+	cl.maxclients = MAX_CLIENTS;
+
 	// Note: we should probably hack around this and give diff values for
 	// diff gamedirs
 	cl.fpd = FPD_DEFAULT;
diff --git a/qw/source/cl_view.c b/qw/source/cl_view.c
index 48fef96eb..632445030 100644
--- a/qw/source/cl_view.c
+++ b/qw/source/cl_view.c
@@ -55,6 +55,10 @@
 	especially when crossing a water boudnary.
 */
 
+cvar_t     *scr_ofsx;
+cvar_t     *scr_ofsy;
+cvar_t     *scr_ofsz;
+
 cvar_t     *cl_rollspeed;
 cvar_t     *cl_rollangle;
 
@@ -518,6 +522,28 @@ CalcGunAngle (void)
 	cl.viewent.angles[PITCH] = -(r_data->refdef->viewangles[PITCH] + pitch);
 }
 
+static void
+V_BoundOffsets (void)
+{
+	vec_t      *origin = cl.simorg;
+
+	// absolutely bound refresh reletive to entity clipping hull
+	// so the view can never be inside a solid wall
+
+	if (r_data->refdef->vieworg[0] < origin[0] - 14)
+		r_data->refdef->vieworg[0] = origin[0] - 14;
+	else if (r_data->refdef->vieworg[0] > origin[0] + 14)
+		r_data->refdef->vieworg[0] = origin[0] + 14;
+	if (r_data->refdef->vieworg[1] < origin[1] - 14)
+		r_data->refdef->vieworg[1] = origin[1] - 14;
+	else if (r_data->refdef->vieworg[1] > origin[1] + 14)
+		r_data->refdef->vieworg[1] = origin[1] + 14;
+	if (r_data->refdef->vieworg[2] < origin[2] - 22)
+		r_data->refdef->vieworg[2] = origin[2] - 22;
+	else if (r_data->refdef->vieworg[2] > origin[2] + 30)
+		r_data->refdef->vieworg[2] = origin[2] + 30;
+}
+
 /*
 	V_AddIdle
 
@@ -621,6 +647,18 @@ V_CalcRefdef (void)
 	// offsets
 	AngleVectors (cl.simangles, forward, right, up);
 
+	// don't allow cheats in multiplayer
+	// FIXME check for dead
+	if (cl.maxclients == 1) {
+		for (i = 0; i < 3; i++) {
+			r_data->refdef->vieworg[i] += scr_ofsx->value * forward[i] +
+				scr_ofsy->value * right[i] +
+				scr_ofsz->value * up[i];
+		}
+	}
+
+	V_BoundOffsets ();
+
 	// set up gun position
 	VectorCopy (cl.simangles, view->angles);
 
@@ -768,6 +806,9 @@ V_Init_Cvars (void)
 	v_idlescale = Cvar_Get ("v_idlescale", "0", CVAR_NONE, NULL,
 							"Toggles whether the view remains idle");
 
+	scr_ofsx = Cvar_Get ("scr_ofsx", "0", CVAR_NONE, NULL, "None");
+	scr_ofsy = Cvar_Get ("scr_ofsy", "0", CVAR_NONE, NULL, "None");
+	scr_ofsz = Cvar_Get ("scr_ofsz", "0", CVAR_NONE, NULL, "None");
 	cl_rollspeed = Cvar_Get ("cl_rollspeed", "200", CVAR_NONE, NULL,
 							 "How quickly you straighten out after strafing");
 	cl_rollangle = Cvar_Get ("cl_rollangle", "2.0", CVAR_NONE, NULL,