Quake: attempt 2duke3d

Change-Id: I4285036e967d7f0722802d43cf2096c808ca5799

1 files changed, 1113 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/view.c b/apps/plugins/sdl/progs/quake/view.c
new file mode 100644
index 0000000..ececf8c
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/view.c
@@ -0,0 +1,1113 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+// view.c -- player eye positioning
+
+#include "quakedef.h"
+#include "r_local.h"
+
+/*
+
+The view is allowed to move slightly from it's true position for bobbing,
+but if it exceeds 8 pixels linear distance (spherical, not box), the list of
+entities sent from the server may not include everything in the pvs, especially
+when crossing a water boudnary.
+
+*/
+
+cvar_t		lcd_x = {"lcd_x","0"};
+cvar_t		lcd_yaw = {"lcd_yaw","0"};
+
+cvar_t	scr_ofsx = {"scr_ofsx","0", false};
+cvar_t	scr_ofsy = {"scr_ofsy","0", false};
+cvar_t	scr_ofsz = {"scr_ofsz","0", false};
+
+cvar_t	cl_rollspeed = {"cl_rollspeed", "200"};
+cvar_t	cl_rollangle = {"cl_rollangle", "2.0"};
+
+cvar_t	cl_bob = {"cl_bob","0.02", false};
+cvar_t	cl_bobcycle = {"cl_bobcycle","0.6", false};
+cvar_t	cl_bobup = {"cl_bobup","0.5", false};
+
+cvar_t	v_kicktime = {"v_kicktime", "0.5", false};
+cvar_t	v_kickroll = {"v_kickroll", "0.6", false};
+cvar_t	v_kickpitch = {"v_kickpitch", "0.6", false};
+
+cvar_t	v_iyaw_cycle = {"v_iyaw_cycle", "2", false};
+cvar_t	v_iroll_cycle = {"v_iroll_cycle", "0.5", false};
+cvar_t	v_ipitch_cycle = {"v_ipitch_cycle", "1", false};
+cvar_t	v_iyaw_level = {"v_iyaw_level", "0.3", false};
+cvar_t	v_iroll_level = {"v_iroll_level", "0.1", false};
+cvar_t	v_ipitch_level = {"v_ipitch_level", "0.3", false};
+
+cvar_t	v_idlescale = {"v_idlescale", "0", false};
+
+cvar_t	crosshair = {"crosshair", "0", true};
+cvar_t	cl_crossx = {"cl_crossx", "0", false};
+cvar_t	cl_crossy = {"cl_crossy", "0", false};
+
+cvar_t	gl_cshiftpercent = {"gl_cshiftpercent", "100", false};
+
+float	v_dmg_time, v_dmg_roll, v_dmg_pitch;
+
+extern	int			in_forward, in_forward2, in_back;
+
+
+/*
+===============
+V_CalcRoll
+
+Used by view and sv_user
+===============
+*/
+vec3_t	forward, right, up;
+
+float V_CalcRoll (vec3_t angles, vec3_t velocity)
+{
+	float	sign;
+	float	side;
+	float	value;
+	
+	AngleVectors (angles, forward, right, up);
+	side = DotProduct (velocity, right);
+	sign = side < 0 ? -1 : 1;
+	side = fabs(side);
+	
+	value = cl_rollangle.value;
+//	if (cl.inwater)
+//		value *= 6;
+
+	if (side < cl_rollspeed.value)
+		side = side * value / cl_rollspeed.value;
+	else
+		side = value;
+	
+	return side*sign;
+	
+}
+
+
+/*
+===============
+V_CalcBob
+
+===============
+*/
+float V_CalcBob (void)
+{
+	float	bob;
+	float	cycle;
+	
+	cycle = cl.time - (int)(cl.time/cl_bobcycle.value)*cl_bobcycle.value;
+	cycle /= cl_bobcycle.value;
+	if (cycle < cl_bobup.value)
+		cycle = M_PI * cycle / cl_bobup.value;
+	else
+		cycle = M_PI + M_PI*(cycle-cl_bobup.value)/(1.0 - cl_bobup.value);
+
+// bob is proportional to velocity in the xy plane
+// (don't count Z, or jumping messes it up)
+
+	bob = sqrt(cl.velocity[0]*cl.velocity[0] + cl.velocity[1]*cl.velocity[1]) * cl_bob.value;
+//Con_Printf ("speed: %5.1f\n", Length(cl.velocity));
+	bob = bob*0.3 + bob*0.7*sin(cycle);
+	if (bob > 4)
+		bob = 4;
+	else if (bob < -7)
+		bob = -7;
+	return bob;
+	
+}
+
+
+//=============================================================================
+
+
+cvar_t	v_centermove = {"v_centermove", "0.15", false};
+cvar_t	v_centerspeed = {"v_centerspeed","500"};
+
+
+void V_StartPitchDrift (void)
+{
+#if 1
+	if (cl.laststop == cl.time)
+	{
+		return;		// something else is keeping it from drifting
+	}
+#endif
+	if (cl.nodrift || !cl.pitchvel)
+	{
+		cl.pitchvel = v_centerspeed.value;
+		cl.nodrift = false;
+		cl.driftmove = 0;
+	}
+}
+
+void V_StopPitchDrift (void)
+{
+	cl.laststop = cl.time;
+	cl.nodrift = true;
+	cl.pitchvel = 0;
+}
+
+/*
+===============
+V_DriftPitch
+
+Moves the client pitch angle towards cl.idealpitch sent by the server.
+
+If the user is adjusting pitch manually, either with lookup/lookdown,
+mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
+
+Drifting is enabled when the center view key is hit, mlook is released and
+lookspring is non 0, or when 
+===============
+*/
+void V_DriftPitch (void)
+{
+	float		delta, move;
+
+	if (noclip_anglehack || !cl.onground || cls.demoplayback )
+	{
+		cl.driftmove = 0;
+		cl.pitchvel = 0;
+		return;
+	}
+
+// don't count small mouse motion
+	if (cl.nodrift)
+	{
+		if ( fabs(cl.cmd.forwardmove) < cl_forwardspeed.value)
+			cl.driftmove = 0;
+		else
+			cl.driftmove += host_frametime;
+	
+		if ( cl.driftmove > v_centermove.value)
+		{
+			V_StartPitchDrift ();
+		}
+		return;
+	}
+	
+	delta = cl.idealpitch - cl.viewangles[PITCH];
+
+	if (!delta)
+	{
+		cl.pitchvel = 0;
+		return;
+	}
+
+	move = host_frametime * cl.pitchvel;
+	cl.pitchvel += host_frametime * v_centerspeed.value;
+	
+//Con_Printf ("move: %f (%f)\n", move, host_frametime);
+
+	if (delta > 0)
+	{
+		if (move > delta)
+		{
+			cl.pitchvel = 0;
+			move = delta;
+		}
+		cl.viewangles[PITCH] += move;
+	}
+	else if (delta < 0)
+	{
+		if (move > -delta)
+		{
+			cl.pitchvel = 0;
+			move = -delta;
+		}
+		cl.viewangles[PITCH] -= move;
+	}
+}
+
+
+
+
+
+/*
+============================================================================== 
+ 
+						PALETTE FLASHES 
+ 
+============================================================================== 
+*/ 
+ 
+ 
+cshift_t	cshift_empty = { {130,80,50}, 0 };
+cshift_t	cshift_water = { {130,80,50}, 128 };
+cshift_t	cshift_slime = { {0,25,5}, 150 };
+cshift_t	cshift_lava = { {255,80,0}, 150 };
+
+cvar_t		v_gamma = {"gamma", "1", true};
+
+byte		gammatable[256];	// palette is sent through this
+
+#ifdef	GLQUAKE
+byte		ramps[3][256];
+float		v_blend[4];		// rgba 0.0 - 1.0
+#endif	// GLQUAKE
+
+void BuildGammaTable (float g)
+{
+	int		i, inf;
+	
+	if (g == 1.0)
+	{
+		for (i=0 ; i<256 ; i++)
+			gammatable[i] = i;
+		return;
+	}
+	
+	for (i=0 ; i<256 ; i++)
+	{
+		inf = 255 * pow ( (i+0.5)/255.5 , g ) + 0.5;
+		if (inf < 0)
+			inf = 0;
+		if (inf > 255)
+			inf = 255;
+		gammatable[i] = inf;
+	}
+}
+
+/*
+=================
+V_CheckGamma
+=================
+*/
+qboolean V_CheckGamma (void)
+{
+	static float oldgammavalue;
+	
+	if (v_gamma.value == oldgammavalue)
+		return false;
+	oldgammavalue = v_gamma.value;
+	
+	BuildGammaTable (v_gamma.value);
+	vid.recalc_refdef = 1;				// force a surface cache flush
+	
+	return true;
+}
+
+
+
+/*
+===============
+V_ParseDamage
+===============
+*/
+void V_ParseDamage (void)
+{
+	int		armor, blood;
+	vec3_t	from;
+	int		i;
+	vec3_t	forward, right, up;
+	entity_t	*ent;
+	float	side;
+	float	count;
+	
+	armor = MSG_ReadByte ();
+	blood = MSG_ReadByte ();
+	for (i=0 ; i<3 ; i++)
+		from[i] = MSG_ReadCoord ();
+
+	count = blood*0.5 + armor*0.5;
+	if (count < 10)
+		count = 10;
+
+	cl.faceanimtime = cl.time + 0.2;		// but sbar face into pain frame
+
+	cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
+	if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
+		cl.cshifts[CSHIFT_DAMAGE].percent = 0;
+	if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
+		cl.cshifts[CSHIFT_DAMAGE].percent = 150;
+
+	if (armor > blood)		
+	{
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
+	}
+	else if (armor)
+	{
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
+	}
+	else
+	{
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
+		cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
+	}
+
+//
+// calculate view angle kicks
+//
+	ent = &cl_entities[cl.viewentity];
+	
+	VectorSubtract (from, ent->origin, from);
+	VectorNormalize (from);
+	
+	AngleVectors (ent->angles, forward, right, up);
+
+	side = DotProduct (from, right);
+	v_dmg_roll = count*side*v_kickroll.value;
+	
+	side = DotProduct (from, forward);
+	v_dmg_pitch = count*side*v_kickpitch.value;
+
+	v_dmg_time = v_kicktime.value;
+}
+
+
+/*
+==================
+V_cshift_f
+==================
+*/
+void V_cshift_f (void)
+{
+	cshift_empty.destcolor[0] = atoi(Cmd_Argv(1));
+	cshift_empty.destcolor[1] = atoi(Cmd_Argv(2));
+	cshift_empty.destcolor[2] = atoi(Cmd_Argv(3));
+	cshift_empty.percent = atoi(Cmd_Argv(4));
+}
+
+
+/*
+==================
+V_BonusFlash_f
+
+When you run over an item, the server sends this command
+==================
+*/
+void V_BonusFlash_f (void)
+{
+	cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
+	cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
+	cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
+	cl.cshifts[CSHIFT_BONUS].percent = 50;
+}
+
+/*
+=============
+V_SetContentsColor
+
+Underwater, lava, etc each has a color shift
+=============
+*/
+void V_SetContentsColor (int contents)
+{
+	switch (contents)
+	{
+	case CONTENTS_EMPTY:
+	case CONTENTS_SOLID:
+		cl.cshifts[CSHIFT_CONTENTS] = cshift_empty;
+		break;
+	case CONTENTS_LAVA:
+		cl.cshifts[CSHIFT_CONTENTS] = cshift_lava;
+		break;
+	case CONTENTS_SLIME:
+		cl.cshifts[CSHIFT_CONTENTS] = cshift_slime;
+		break;
+	default:
+		cl.cshifts[CSHIFT_CONTENTS] = cshift_water;
+	}
+}
+
+/*
+=============
+V_CalcPowerupCshift
+=============
+*/
+void V_CalcPowerupCshift (void)
+{
+	if (cl.items & IT_QUAD)
+	{
+		cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
+		cl.cshifts[CSHIFT_POWERUP].percent = 30;
+	}
+	else if (cl.items & IT_SUIT)
+	{
+		cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
+		cl.cshifts[CSHIFT_POWERUP].percent = 20;
+	}
+	else if (cl.items & IT_INVISIBILITY)
+	{
+		cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
+		cl.cshifts[CSHIFT_POWERUP].percent = 100;
+	}
+	else if (cl.items & IT_INVULNERABILITY)
+	{
+		cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
+		cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
+		cl.cshifts[CSHIFT_POWERUP].percent = 30;
+	}
+	else
+		cl.cshifts[CSHIFT_POWERUP].percent = 0;
+}
+
+/*
+=============
+V_CalcBlend
+=============
+*/
+#ifdef	GLQUAKE
+void V_CalcBlend (void)
+{
+	float	r, g, b, a, a2;
+	int		j;
+
+	r = 0;
+	g = 0;
+	b = 0;
+	a = 0;
+
+	for (j=0 ; j<NUM_CSHIFTS ; j++)	
+	{
+		if (!gl_cshiftpercent.value)
+			continue;
+
+		a2 = ((cl.cshifts[j].percent * gl_cshiftpercent.value) / 100.0) / 255.0;
+
+//		a2 = cl.cshifts[j].percent/255.0;
+		if (!a2)
+			continue;
+		a = a + a2*(1-a);
+//Con_Printf ("j:%i a:%f\n", j, a);
+		a2 = a2/a;
+		r = r*(1-a2) + cl.cshifts[j].destcolor[0]*a2;
+		g = g*(1-a2) + cl.cshifts[j].destcolor[1]*a2;
+		b = b*(1-a2) + cl.cshifts[j].destcolor[2]*a2;
+	}
+
+	v_blend[0] = r/255.0;
+	v_blend[1] = g/255.0;
+	v_blend[2] = b/255.0;
+	v_blend[3] = a;
+	if (v_blend[3] > 1)
+		v_blend[3] = 1;
+	if (v_blend[3] < 0)
+		v_blend[3] = 0;
+}
+#endif
+
+/*
+=============
+V_UpdatePalette
+=============
+*/
+#ifdef	GLQUAKE
+void V_UpdatePalette (void)
+{
+	int		i, j;
+	qboolean	new;
+	byte	*basepal, *newpal;
+	byte	pal[768];
+	float	r,g,b,a;
+	int		ir, ig, ib;
+	qboolean force;
+
+	V_CalcPowerupCshift ();
+	
+	new = false;
+	
+	for (i=0 ; i<NUM_CSHIFTS ; i++)
+	{
+		if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
+		{
+			new = true;
+			cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
+		}
+		for (j=0 ; j<3 ; j++)
+			if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
+			{
+				new = true;
+				cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
+			}
+	}
+	
+// drop the damage value
+	cl.cshifts[CSHIFT_DAMAGE].percent -= host_frametime*150;
+	if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
+		cl.cshifts[CSHIFT_DAMAGE].percent = 0;
+
+// drop the bonus value
+	cl.cshifts[CSHIFT_BONUS].percent -= host_frametime*100;
+	if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
+		cl.cshifts[CSHIFT_BONUS].percent = 0;
+
+	force = V_CheckGamma ();
+	if (!new && !force)
+		return;
+
+	V_CalcBlend ();
+
+	a = v_blend[3];
+	r = 255*v_blend[0]*a;
+	g = 255*v_blend[1]*a;
+	b = 255*v_blend[2]*a;
+
+	a = 1-a;
+	for (i=0 ; i<256 ; i++)
+	{
+		ir = i*a + r;
+		ig = i*a + g;
+		ib = i*a + b;
+		if (ir > 255)
+			ir = 255;
+		if (ig > 255)
+			ig = 255;
+		if (ib > 255)
+			ib = 255;
+
+		ramps[0][i] = gammatable[ir];
+		ramps[1][i] = gammatable[ig];
+		ramps[2][i] = gammatable[ib];
+	}
+
+	basepal = host_basepal;
+	newpal = pal;
+	
+	for (i=0 ; i<256 ; i++)
+	{
+		ir = basepal[0];
+		ig = basepal[1];
+		ib = basepal[2];
+		basepal += 3;
+		
+		newpal[0] = ramps[0][ir];
+		newpal[1] = ramps[1][ig];
+		newpal[2] = ramps[2][ib];
+		newpal += 3;
+	}
+
+	VID_ShiftPalette (pal);	
+}
+#else	// !GLQUAKE
+void V_UpdatePalette (void)
+{
+	int		i, j;
+	qboolean	new;
+	byte	*basepal, *newpal;
+	byte	pal[768];
+	int		r,g,b;
+	qboolean force;
+
+	V_CalcPowerupCshift ();
+	
+	new = false;
+	
+	for (i=0 ; i<NUM_CSHIFTS ; i++)
+	{
+		if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
+		{
+			new = true;
+			cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
+		}
+		for (j=0 ; j<3 ; j++)
+			if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
+			{
+				new = true;
+				cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
+			}
+	}
+	
+// drop the damage value
+	cl.cshifts[CSHIFT_DAMAGE].percent -= host_frametime*150;
+	if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
+		cl.cshifts[CSHIFT_DAMAGE].percent = 0;
+
+// drop the bonus value
+	cl.cshifts[CSHIFT_BONUS].percent -= host_frametime*100;
+	if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
+		cl.cshifts[CSHIFT_BONUS].percent = 0;
+
+	force = V_CheckGamma ();
+	if (!new && !force)
+		return;
+			
+	basepal = host_basepal;
+	newpal = pal;
+	
+	for (i=0 ; i<256 ; i++)
+	{
+		r = basepal[0];
+		g = basepal[1];
+		b = basepal[2];
+		basepal += 3;
+	
+		for (j=0 ; j<NUM_CSHIFTS ; j++)	
+		{
+			r += (cl.cshifts[j].percent*(cl.cshifts[j].destcolor[0]-r))>>8;
+			g += (cl.cshifts[j].percent*(cl.cshifts[j].destcolor[1]-g))>>8;
+			b += (cl.cshifts[j].percent*(cl.cshifts[j].destcolor[2]-b))>>8;
+		}
+		
+		newpal[0] = gammatable[r];
+		newpal[1] = gammatable[g];
+		newpal[2] = gammatable[b];
+		newpal += 3;
+	}
+
+	VID_ShiftPalette (pal);	
+}
+#endif	// !GLQUAKE
+
+
+/* 
+============================================================================== 
+ 
+						VIEW RENDERING 
+ 
+============================================================================== 
+*/ 
+
+float angledelta (float a)
+{
+	a = anglemod(a);
+	if (a > 180)
+		a -= 360;
+	return a;
+}
+
+/*
+==================
+CalcGunAngle
+==================
+*/
+void CalcGunAngle (void)
+{	
+	float	yaw, pitch, move;
+	static float oldyaw = 0;
+	static float oldpitch = 0;
+	
+	yaw = r_refdef.viewangles[YAW];
+	pitch = -r_refdef.viewangles[PITCH];
+
+	yaw = angledelta(yaw - r_refdef.viewangles[YAW]) * 0.4;
+	if (yaw > 10)
+		yaw = 10;
+	if (yaw < -10)
+		yaw = -10;
+	pitch = angledelta(-pitch - r_refdef.viewangles[PITCH]) * 0.4;
+	if (pitch > 10)
+		pitch = 10;
+	if (pitch < -10)
+		pitch = -10;
+	move = host_frametime*20;
+	if (yaw > oldyaw)
+	{
+		if (oldyaw + move < yaw)
+			yaw = oldyaw + move;
+	}
+	else
+	{
+		if (oldyaw - move > yaw)
+			yaw = oldyaw - move;
+	}
+	
+	if (pitch > oldpitch)
+	{
+		if (oldpitch + move < pitch)
+			pitch = oldpitch + move;
+	}
+	else
+	{
+		if (oldpitch - move > pitch)
+			pitch = oldpitch - move;
+	}
+	
+	oldyaw = yaw;
+	oldpitch = pitch;
+
+	cl.viewent.angles[YAW] = r_refdef.viewangles[YAW] + yaw;
+	cl.viewent.angles[PITCH] = - (r_refdef.viewangles[PITCH] + pitch);
+
+	cl.viewent.angles[ROLL] -= v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
+	cl.viewent.angles[PITCH] -= v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
+	cl.viewent.angles[YAW] -= v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
+}
+
+/*
+==============
+V_BoundOffsets
+==============
+*/
+void V_BoundOffsets (void)
+{
+	entity_t	*ent;
+	
+	ent = &cl_entities[cl.viewentity];
+
+// absolutely bound refresh reletive to entity clipping hull
+// so the view can never be inside a solid wall
+
+	if (r_refdef.vieworg[0] < ent->origin[0] - 14)
+		r_refdef.vieworg[0] = ent->origin[0] - 14;
+	else if (r_refdef.vieworg[0] > ent->origin[0] + 14)
+		r_refdef.vieworg[0] = ent->origin[0] + 14;
+	if (r_refdef.vieworg[1] < ent->origin[1] - 14)
+		r_refdef.vieworg[1] = ent->origin[1] - 14;
+	else if (r_refdef.vieworg[1] > ent->origin[1] + 14)
+		r_refdef.vieworg[1] = ent->origin[1] + 14;
+	if (r_refdef.vieworg[2] < ent->origin[2] - 22)
+		r_refdef.vieworg[2] = ent->origin[2] - 22;
+	else if (r_refdef.vieworg[2] > ent->origin[2] + 30)
+		r_refdef.vieworg[2] = ent->origin[2] + 30;
+}
+
+/*
+==============
+V_AddIdle
+
+Idle swaying
+==============
+*/
+void V_AddIdle (void)
+{
+	r_refdef.viewangles[ROLL] += v_idlescale.value * sin(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
+	r_refdef.viewangles[PITCH] += v_idlescale.value * sin(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
+	r_refdef.viewangles[YAW] += v_idlescale.value * sin(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
+}
+
+
+/*
+==============
+V_CalcViewRoll
+
+Roll is induced by movement and damage
+==============
+*/
+void V_CalcViewRoll (void)
+{
+	float		side;
+		
+	side = V_CalcRoll (cl_entities[cl.viewentity].angles, cl.velocity);
+	r_refdef.viewangles[ROLL] += side;
+
+	if (v_dmg_time > 0)
+	{
+		r_refdef.viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
+		r_refdef.viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
+		v_dmg_time -= host_frametime;
+	}
+
+	if (cl.stats[STAT_HEALTH] <= 0)
+	{
+		r_refdef.viewangles[ROLL] = 80;	// dead view angle
+		return;
+	}
+
+}
+
+
+/*
+==================
+V_CalcIntermissionRefdef
+
+==================
+*/
+void V_CalcIntermissionRefdef (void)
+{
+	entity_t	*ent, *view;
+	float		old;
+
+// ent is the player model (visible when out of body)
+	ent = &cl_entities[cl.viewentity];
+// view is the weapon model (only visible from inside body)
+	view = &cl.viewent;
+
+	VectorCopy (ent->origin, r_refdef.vieworg);
+	VectorCopy (ent->angles, r_refdef.viewangles);
+	view->model = NULL;
+
+// allways idle in intermission
+	old = v_idlescale.value;
+	v_idlescale.value = 1;
+	V_AddIdle ();
+	v_idlescale.value = old;
+}
+
+/*
+==================
+V_CalcRefdef
+
+==================
+*/
+void V_CalcRefdef (void)
+{
+	entity_t	*ent, *view;
+	int			i;
+	vec3_t		forward, right, up;
+	vec3_t		angles;
+	float		bob;
+	static float oldz = 0;
+
+	V_DriftPitch ();
+
+// ent is the player model (visible when out of body)
+	ent = &cl_entities[cl.viewentity];
+// view is the weapon model (only visible from inside body)
+	view = &cl.viewent;
+	
+
+// transform the view offset by the model's matrix to get the offset from
+// model origin for the view
+	ent->angles[YAW] = cl.viewangles[YAW];	// the model should face
+										// the view dir
+	ent->angles[PITCH] = -cl.viewangles[PITCH];	// the model should face
+										// the view dir
+										
+	
+	bob = V_CalcBob ();
+	
+// refresh position
+	VectorCopy (ent->origin, r_refdef.vieworg);
+	r_refdef.vieworg[2] += cl.viewheight + bob;
+
+// never let it sit exactly on a node line, because a water plane can
+// dissapear when viewed with the eye exactly on it.
+// the server protocol only specifies to 1/16 pixel, so add 1/32 in each axis
+	r_refdef.vieworg[0] += 1.0/32;
+	r_refdef.vieworg[1] += 1.0/32;
+	r_refdef.vieworg[2] += 1.0/32;
+
+	VectorCopy (cl.viewangles, r_refdef.viewangles);
+	V_CalcViewRoll ();
+	V_AddIdle ();
+
+// offsets
+	angles[PITCH] = -ent->angles[PITCH];	// because entity pitches are
+											//  actually backward
+	angles[YAW] = ent->angles[YAW];
+	angles[ROLL] = ent->angles[ROLL];
+
+	AngleVectors (angles, forward, right, up);
+
+	for (i=0 ; i<3 ; i++)
+		r_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.viewangles, view->angles);
+	
+	CalcGunAngle ();
+
+	VectorCopy (ent->origin, view->origin);
+	view->origin[2] += cl.viewheight;
+
+	for (i=0 ; i<3 ; i++)
+	{
+		view->origin[i] += forward[i]*bob*0.4;
+//		view->origin[i] += right[i]*bob*0.4;
+//		view->origin[i] += up[i]*bob*0.8;
+	}
+	view->origin[2] += bob;
+
+// fudge position around to keep amount of weapon visible
+// roughly equal with different FOV
+
+#if 0
+	if (cl.model_precache[cl.stats[STAT_WEAPON]] && strcmp (cl.model_precache[cl.stats[STAT_WEAPON]]->name,  "progs/v_shot2.mdl"))
+#endif
+	if (scr_viewsize.value == 110)
+		view->origin[2] += 1;
+	else if (scr_viewsize.value == 100)
+		view->origin[2] += 2;
+	else if (scr_viewsize.value == 90)
+		view->origin[2] += 1;
+	else if (scr_viewsize.value == 80)
+		view->origin[2] += 0.5;
+
+	view->model = cl.model_precache[cl.stats[STAT_WEAPON]];
+	view->frame = cl.stats[STAT_WEAPONFRAME];
+	view->colormap = vid.colormap;
+
+// set up the refresh position
+	VectorAdd (r_refdef.viewangles, cl.punchangle, r_refdef.viewangles);
+
+// smooth out stair step ups
+if (cl.onground && ent->origin[2] - oldz > 0)
+{
+	float steptime;
+	
+	steptime = cl.time - cl.oldtime;
+	if (steptime < 0)
+//FIXME		I_Error ("steptime < 0");
+		steptime = 0;
+
+	oldz += steptime * 80;
+	if (oldz > ent->origin[2])
+		oldz = ent->origin[2];
+	if (ent->origin[2] - oldz > 12)
+		oldz = ent->origin[2] - 12;
+	r_refdef.vieworg[2] += oldz - ent->origin[2];
+	view->origin[2] += oldz - ent->origin[2];
+}
+else
+	oldz = ent->origin[2];
+
+	if (chase_active.value)
+		Chase_Update ();
+}
+
+/*
+==================
+V_RenderView
+
+The player's clipping box goes from (-16 -16 -24) to (16 16 32) from
+the entity origin, so any view position inside that will be valid
+==================
+*/
+extern vrect_t	scr_vrect;
+
+void V_RenderView (void)
+{
+	if (con_forcedup)
+		return;
+
+// don't allow cheats in multiplayer
+	if (cl.maxclients > 1)
+	{
+		Cvar_Set ("scr_ofsx", "0");
+		Cvar_Set ("scr_ofsy", "0");
+		Cvar_Set ("scr_ofsz", "0");
+	}
+
+	if (cl.intermission)
+	{	// intermission / finale rendering
+		V_CalcIntermissionRefdef ();	
+	}
+	else
+	{
+		if (!cl.paused /* && (sv.maxclients > 1 || key_dest == key_game) */ )
+			V_CalcRefdef ();
+	}
+
+	R_PushDlights ();
+
+	if (lcd_x.value)
+	{
+		//
+		// render two interleaved views
+		//
+		int		i;
+
+		vid.rowbytes <<= 1;
+		vid.aspect *= 0.5;
+
+		r_refdef.viewangles[YAW] -= lcd_yaw.value;
+		for (i=0 ; i<3 ; i++)
+			r_refdef.vieworg[i] -= right[i]*lcd_x.value;
+		R_RenderView ();
+
+		vid.buffer += vid.rowbytes>>1;
+
+		R_PushDlights ();
+
+		r_refdef.viewangles[YAW] += lcd_yaw.value*2;
+		for (i=0 ; i<3 ; i++)
+			r_refdef.vieworg[i] += 2*right[i]*lcd_x.value;
+		R_RenderView ();
+
+		vid.buffer -= vid.rowbytes>>1;
+
+		r_refdef.vrect.height <<= 1;
+
+		vid.rowbytes >>= 1;
+		vid.aspect *= 2;
+	}
+	else
+	{
+		R_RenderView ();
+	}
+
+#ifndef GLQUAKE
+	if (crosshair.value)
+		Draw_Character (scr_vrect.x + scr_vrect.width/2 + cl_crossx.value, 
+			scr_vrect.y + scr_vrect.height/2 + cl_crossy.value, '+');
+#endif
+		
+}
+
+//============================================================================
+
+/*
+=============
+V_Init
+=============
+*/
+void V_Init (void)
+{
+	Cmd_AddCommand ("v_cshift", V_cshift_f);	
+	Cmd_AddCommand ("bf", V_BonusFlash_f);
+	Cmd_AddCommand ("centerview", V_StartPitchDrift);
+
+	Cvar_RegisterVariable (&lcd_x);
+	Cvar_RegisterVariable (&lcd_yaw);
+
+	Cvar_RegisterVariable (&v_centermove);
+	Cvar_RegisterVariable (&v_centerspeed);
+
+	Cvar_RegisterVariable (&v_iyaw_cycle);
+	Cvar_RegisterVariable (&v_iroll_cycle);
+	Cvar_RegisterVariable (&v_ipitch_cycle);
+	Cvar_RegisterVariable (&v_iyaw_level);
+	Cvar_RegisterVariable (&v_iroll_level);
+	Cvar_RegisterVariable (&v_ipitch_level);
+
+	Cvar_RegisterVariable (&v_idlescale);
+	Cvar_RegisterVariable (&crosshair);
+	Cvar_RegisterVariable (&cl_crossx);
+	Cvar_RegisterVariable (&cl_crossy);
+	Cvar_RegisterVariable (&gl_cshiftpercent);
+
+	Cvar_RegisterVariable (&scr_ofsx);
+	Cvar_RegisterVariable (&scr_ofsy);
+	Cvar_RegisterVariable (&scr_ofsz);
+	Cvar_RegisterVariable (&cl_rollspeed);
+	Cvar_RegisterVariable (&cl_rollangle);
+	Cvar_RegisterVariable (&cl_bob);
+	Cvar_RegisterVariable (&cl_bobcycle);
+	Cvar_RegisterVariable (&cl_bobup);
+
+	Cvar_RegisterVariable (&v_kicktime);
+	Cvar_RegisterVariable (&v_kickroll);
+	Cvar_RegisterVariable (&v_kickpitch);	
+	
+	BuildGammaTable (1.0);	// no gamma yet
+	Cvar_RegisterVariable (&v_gamma);
+}
+
+