fteqw/engine/client/cl_cam.c

855 lines
19 KiB
C

/*
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 included (GNU.txt) 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.
*/
/* ZOID
*
* Player camera tracking in Spectator mode
*
* This takes over player controls for spectator automatic camera.
* Player moves as a spectator, but the camera tracks and enemy player
*/
#include "quakedef.h"
#include "winquake.h"
#define PM_SPECTATORMAXSPEED 500
#define PM_STOPSPEED 100
#define PM_MAXSPEED 320
#define BUTTON_JUMP 2
#define BUTTON_ATTACK 1
#define MAX_ANGLE_TURN 10
char cl_spectatorgroup[] = "Spectator Tracking";
// track high fragger
cvar_t cl_hightrack = SCVAR("cl_hightrack", "0");
cvar_t cl_chasecam = SCVAR("cl_chasecam", "1");
cvar_t cl_selfcam = SCVAR("cl_selfcam", "1");
//cvar_t cl_camera_maxpitch = {"cl_camera_maxpitch", "10" };
//cvar_t cl_camera_maxyaw = {"cl_camera_maxyaw", "30" };
int selfcam=1;
static float vlen(vec3_t v)
{
return sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
}
// returns true if weapon model should be drawn in camera mode
qboolean Cam_DrawViewModel(playerview_t *pv)
{
if (cl.spectator)
{
if (pv->cam_auto && pv->cam_locked && cl_chasecam.ival)
return true;
return false;
}
else
{
if (selfcam == 1 && !r_refdef.externalview)
return true;
return false;
}
}
int Cam_TrackNum(playerview_t *pv)
{
if (!pv->cam_auto)
return -1;
return pv->cam_spec_track;
}
void Cam_Unlock(playerview_t *pv)
{
if (pv->cam_auto)
{
CL_SendClientCommand(true, "ptrack");
pv->cam_auto = CAM_NONE;
pv->cam_locked = false;
pv->viewentity = (cls.demoplayback)?0:(pv->playernum+1); //free floating
Sbar_Changed();
}
}
void Cam_Lock(playerview_t *pv, int playernum)
{
int i;
pv->cam_lastviewtime = -1000;
CL_SendClientCommand(true, "ptrack %i", playernum);
pv->cam_spec_track = playernum;
pv->cam_locked = false;
pv->viewentity = (cls.demoplayback)?0:(pv->playernum+1); //free floating
Skin_FlushPlayers();
if (cls.demoplayback == DPB_MVD || cls.demoplayback == DPB_EZTV)
{
memcpy(&pv->stats, cl.players[playernum].stats, sizeof(pv->stats));
pv->cam_locked = true; //instantly lock if the player is valid.
pv->viewentity = playernum+1;
}
Sbar_Changed();
for (i = 0; i < cl.allocated_client_slots; i++)
CL_NewTranslation(i);
}
trace_t Cam_DoTrace(vec3_t vec1, vec3_t vec2)
{
#if 0
memset(&pmove, 0, sizeof(pmove));
pmove.numphysent = 1;
memset(&pmove.physents[0], 0, sizeof(physent_t));
VectorClear (pmove.physents[0].origin);
pmove.physents[0].model = cl.worldmodel;
#endif
VectorCopy (vec1, pmove.origin);
return PM_PlayerTrace(pmove.origin, vec2, MASK_PLAYERSOLID);
}
// Returns distance or 9999 if invalid for some reason
static float Cam_TryFlyby(vec3_t selforigin, vec3_t playerorigin, vec3_t vec, qboolean checkvis)
{
vec3_t v;
trace_t trace;
float len;
pmove.player_mins[0] = pmove.player_mins[1] = -16;
pmove.player_mins[2] = -24;
pmove.player_maxs[0] = pmove.player_maxs[1] = 16;
pmove.player_maxs[2] = 32;
VectorAngles(vec, NULL, v);
// v[0] = -v[0];
VectorCopy (v, pmove.angles);
VectorNormalize(vec);
VectorMA(playerorigin, 800, vec, v);
// v is endpos
// fake a player move
trace = Cam_DoTrace(playerorigin, v);
if (/*trace.inopen ||*/ trace.inwater)
return 9999;
VectorCopy(trace.endpos, vec);
VectorSubtract(trace.endpos, playerorigin, v);
len = sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
if (len < 32 || len > 800)
return 9999;
if (checkvis)
{
VectorSubtract(trace.endpos, selforigin, v);
len = sqrt(v[0]*v[0] + v[1]*v[1] + v[2]*v[2]);
trace = Cam_DoTrace(selforigin, vec);
if (trace.fraction != 1 || trace.inwater)
return 9999;
}
return len;
}
// Is player visible?
static qboolean Cam_IsVisible(vec3_t playerorigin, vec3_t vec)
{
trace_t trace;
vec3_t v;
float d;
trace = Cam_DoTrace(playerorigin, vec);
if (trace.fraction != 1 || /*trace.inopen ||*/ trace.inwater)
return false;
// check distance, don't let the player get too far away or too close
VectorSubtract(playerorigin, vec, v);
d = vlen(v);
if (d < 16)
return false;
return true;
}
static qboolean InitFlyby(playerview_t *pv, vec3_t selforigin, vec3_t playerorigin, vec3_t playerviewangles, int checkvis)
{
float f, max;
vec3_t vec, vec2;
vec3_t forward, right, up;
VectorCopy(playerviewangles, vec);
vec[0] = 0;
AngleVectors (vec, forward, right, up);
// for (i = 0; i < 3; i++)
// forward[i] *= 3;
max = 1000;
VectorAdd(forward, up, vec2);
VectorAdd(vec2, right, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorAdd(forward, up, vec2);
VectorSubtract(vec2, right, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorAdd(forward, right, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorSubtract(forward, right, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorAdd(forward, up, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorSubtract(forward, up, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorAdd(up, right, vec2);
VectorSubtract(vec2, forward, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorSubtract(up, right, vec2);
VectorSubtract(vec2, forward, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
// invert
VectorNegate(forward, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorCopy(forward, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
// invert
VectorNegate(right, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
VectorCopy(right, vec2);
if ((f = Cam_TryFlyby(selforigin, playerorigin, vec2, checkvis)) < max)
{
max = f;
VectorCopy(vec2, vec);
}
// ack, can't find him
if (max >= 1000)
{
// Cam_Unlock();
return false;
}
pv->cam_locked = true;
pv->viewentity = pv->cam_spec_track+1;
VectorCopy(vec, pv->cam_desired_position);
return true;
}
static void Cam_CheckHighTarget(playerview_t *pv)
{
int i, j, max;
player_info_t *s;
playerview_t *spv;
j = -1;
for (i = 0, max = -9999; i < cl.allocated_client_slots; i++)
{
s = &cl.players[i];
if (s->name[0] && !s->spectator && s->frags > max)
{
//skip it if an earlier seat is watching it already
for (spv = pv-1; spv >= cl.playerview && spv < &cl.playerview[cl.splitclients]; spv--)
{
if (Cam_TrackNum(spv) == i)
break;
}
if (!(spv >= cl.playerview && spv < &cl.playerview[cl.splitclients]))
{
max = s->frags;
j = i;
}
}
}
if (j >= 0)
{
if (!pv->cam_locked || cl.players[j].frags > cl.players[pv->cam_spec_track].frags)
{
Cam_Lock(pv, j);
//un-lock any higher seats watching our new target. this keeps things ordered.
for (spv = pv+1; spv >= cl.playerview && spv < &cl.playerview[cl.splitclients]; spv++)
{
if (Cam_TrackNum(spv) == j)
spv->cam_locked = false;
}
}
}
else
Cam_Unlock(pv);
}
void Cam_SelfTrack(playerview_t *pv)
{
vec3_t vec;
if (!cl.worldmodel || cl.worldmodel->needload)
return;
if (selfcam == 1)
{ //view-from-eyes
}
else
{
if (selfcam == 2)
{ //fixme:
vec3_t forward, right, up;
trace_t tr;
AngleVectors(r_refdef.viewangles, forward, right, up);
VectorMA(pv->simorg, -128, forward, pv->cam_desired_position);
tr = Cam_DoTrace(pv->simorg, pv->cam_desired_position);
VectorCopy(tr.endpos, pv->cam_desired_position);
}
else
{ //view from a random wall
if (!pv->cam_locked || !Cam_IsVisible(pv->simorg, pv->cam_desired_position))
{
if (!pv->cam_locked || realtime - pv->cam_lastviewtime > 0.1)
{
if (!InitFlyby(pv, pv->cam_desired_position, pv->simorg, pv->simangles, true))
InitFlyby(pv, pv->cam_desired_position, pv->simorg, pv->simangles, false);
pv->cam_lastviewtime = realtime;
}
}
else
{
pv->cam_lastviewtime = realtime;
}
//tracking failed.
if (!pv->cam_locked)
return;
}
// move there locally immediately
VectorCopy(pv->cam_desired_position, r_refdef.vieworg);
VectorSubtract(pv->simorg, pv->cam_desired_position, vec);
VectorAngles(vec, NULL, r_refdef.viewangles);
r_refdef.viewangles[0] = -r_refdef.viewangles[0];
}
}
// ZOID
//
// Take over the user controls and track a player.
// We find a nice position to watch the player and move there
void Cam_Track(playerview_t *pv, usercmd_t *cmd)
{
player_state_t *player, *self;
inframe_t *frame;
vec3_t vec;
float len;
if (!cl.spectator || !cl.worldmodel) //can happen when the server changes level
return;
if (cl_hightrack.value && !pv->cam_locked)
Cam_CheckHighTarget(pv);
if (!pv->cam_auto || cls.state != ca_active)
return;
if (pv->cam_locked && (!cl.players[pv->cam_spec_track].name[0] || cl.players[pv->cam_spec_track].spectator))
{
pv->cam_locked = false;
if (cl_hightrack.value)
Cam_CheckHighTarget(pv);
else
Cam_Unlock(pv);
return;
}
frame = &cl.inframes[cl.validsequence & UPDATE_MASK];
player = frame->playerstate + pv->cam_spec_track;
self = frame->playerstate + pv->playernum;
if (!pv->cam_locked || !Cam_IsVisible(player->origin, pv->cam_desired_position))
{
if (!pv->cam_locked || realtime - pv->cam_lastviewtime > 0.1)
{
if (!InitFlyby(pv, self->origin, player->origin, player->viewangles, true))
InitFlyby(pv, self->origin, player->origin, player->viewangles, false);
pv->cam_lastviewtime = realtime;
}
}
else
{
pv->cam_lastviewtime = realtime;
}
//tracking failed.
if (!pv->cam_locked || !pv->cam_auto)
return;
if (cl_chasecam.value || scr_chatmode == 2)
{
float *neworg;
// float *newang;
if (pv->nolocalplayer)
neworg = cl.lerpents[pv->viewentity].origin;
else
neworg = player->origin;
if (scr_chatmode != 2)
pv->cam_lastviewtime = realtime;
// VectorCopy(newang, pv->viewangles);
if (memcmp(neworg, &self->origin, sizeof(vec3_t)) != 0)
{
if (!cls.demoplayback)
{
MSG_WriteByte (&cls.netchan.message, clc_tmove);
MSG_WriteCoord (&cls.netchan.message, neworg[0]);
MSG_WriteCoord (&cls.netchan.message, neworg[1]);
MSG_WriteCoord (&cls.netchan.message, neworg[2]);
}
// move there locally immediately
VectorCopy(neworg, self->origin);
}
self->weaponframe = player->weaponframe;
return;
}
// Ok, move to our desired position and set our angles to view
// the player
VectorSubtract(pv->cam_desired_position, self->origin, vec);
len = vlen(vec);
cmd->forwardmove = cmd->sidemove = cmd->upmove = 0;
if (len > 16)
{ // close enough?
MSG_WriteByte (&cls.netchan.message, clc_tmove);
MSG_WriteCoord (&cls.netchan.message, pv->cam_desired_position[0]);
MSG_WriteCoord (&cls.netchan.message, pv->cam_desired_position[1]);
MSG_WriteCoord (&cls.netchan.message, pv->cam_desired_position[2]);
}
// move there locally immediately
VectorCopy(pv->cam_desired_position, self->origin);
VectorSubtract(player->origin, pv->cam_desired_position, vec);
VectorAngles(vec, NULL, pv->viewangles);
pv->viewangles[0] = -pv->viewangles[0];
}
void Cam_SetAutoTrack(int userid)
{ //this is a hint from the server about who to track
}
void Cam_TrackCrosshairedPlayer(playerview_t *pv)
{
inframe_t *frame;
player_state_t *player;
int i;
float dot = 0.1, bestdot=0;
int best = -1;
vec3_t selforg;
vec3_t dir;
frame = &cl.inframes[cl.validsequence & UPDATE_MASK];
player = frame->playerstate + pv->playernum;
VectorCopy(player->origin, selforg);
for (i = 0; i < cl.allocated_client_slots; i++)
{
player = frame->playerstate + i;
VectorSubtract(player->origin, selforg, dir);
VectorNormalize(dir);
dot = DotProduct(vpn, dir);
if (dot > bestdot)
{
bestdot = dot;
best = i;
}
}
Con_Printf("Track %i? %f\n", best, bestdot);
if (best != -1) //did we actually get someone?
{
pv->cam_auto++;
Cam_Lock(pv, best);
}
}
void Cam_FinishMove(playerview_t *pv, usercmd_t *cmd)
{
int i;
player_info_t *s;
int end;
extern cvar_t cl_demospeed, cl_splitscreen;
if (cls.state != ca_active)
return;
if (!cl.spectator && (cls.demoplayback != DPB_MVD && cls.demoplayback != DPB_EZTV)) // only in spectator mode
return;
if (cls.demoplayback == DPB_MVD || cls.demoplayback == DPB_EZTV)
{
int nb;
nb = (cmd->sidemove<0)?4:0;
nb |= (cmd->sidemove>0)?8:0;
nb |= (cmd->forwardmove<0)?16:0;
nb |= (cmd->forwardmove>0)?32:0;
nb |= (cmd->upmove<0)?64:0;
nb |= (cmd->upmove>0)?128:0;
if (Cam_TrackNum(pv) >= 0)
{
if (nb & (nb ^ pv->cam_oldbuttons) & 4)
Cvar_SetValue(&cl_demospeed, max(cl_demospeed.value - 0.1, 0));
if (nb & (nb ^ pv->cam_oldbuttons) & 8)
Cvar_SetValue(&cl_demospeed, min(cl_demospeed.value + 0.1, 10));
if (nb & (nb ^ pv->cam_oldbuttons) & (4|8))
Con_Printf("playback speed: %g%%\n", cl_demospeed.value*100);
if (nb & (nb ^ pv->cam_oldbuttons) & 16)
Cbuf_AddText("demo_jump +10", RESTRICT_LOCAL);
if (nb & (nb ^ pv->cam_oldbuttons) & 32)
Cbuf_AddText("demo_jump -10", RESTRICT_LOCAL);
if (nb & (nb ^ pv->cam_oldbuttons) & (4|8))
Con_Printf("playback speed: %g%%\n", cl_demospeed.value*100);
if (nb & (nb ^ pv->cam_oldbuttons) & 64)
Cvar_SetValue(&cl_splitscreen, max(cl_splitscreen.ival - 1, 0));
if (nb & (nb ^ pv->cam_oldbuttons) & 128)
Cvar_SetValue(&cl_splitscreen, min(cl_splitscreen.ival + 1, MAX_SPLITS-1));
}
pv->cam_oldbuttons = (pv->cam_oldbuttons & 3) | (nb & ~3);
if (cmd->impulse)
{
int pl = cmd->impulse;
for (i = 0; ; i++)
{
if (i == MAX_CLIENTS)
{
if (pl == cmd->impulse)
break;
i = 0;
}
s = &cl.players[i];
if (s->name[0] && !s->spectator)
{
pl--;
if (!pl)
{
Cam_Lock(pv, i);
if (pv >= &cl.playerview[0] && pv < &cl.playerview[cl.splitclients])
{
pl = 1;
pv++;
}
else
break;
}
}
}
return;
}
}
if (cmd->buttons & BUTTON_ATTACK)
{
if (!(pv->cam_oldbuttons & BUTTON_ATTACK))
{
pv->cam_oldbuttons |= BUTTON_ATTACK;
pv->cam_auto++;
if (pv->cam_auto > CAM_TRACK)
{
Cam_Unlock(pv);
VectorCopy(pv->viewangles, cmd->angles);
return;
}
}
else
return;
}
else
{
pv->cam_oldbuttons &= ~BUTTON_ATTACK;
if (!pv->cam_auto)
{
if ((cmd->buttons & BUTTON_JUMP) && !(pv->cam_oldbuttons & BUTTON_JUMP))
Cam_TrackCrosshairedPlayer(pv);
pv->cam_oldbuttons = (pv->cam_oldbuttons&~BUTTON_JUMP) | (cmd->buttons & BUTTON_JUMP);
return;
}
}
if (pv->cam_auto && cl_hightrack.ival)
{
Cam_CheckHighTarget(pv);
return;
}
if (pv->cam_locked)
{
if ((cmd->buttons & BUTTON_JUMP) && (pv->cam_oldbuttons & BUTTON_JUMP))
return; // don't pogo stick
if (!(cmd->buttons & BUTTON_JUMP))
{
pv->cam_oldbuttons &= ~BUTTON_JUMP;
return;
}
pv->cam_oldbuttons |= BUTTON_JUMP; // don't jump again until released
}
// Con_Printf("Selecting track target...\n");
if (pv->cam_locked && pv->cam_auto)
end = (pv->cam_spec_track + 1) % MAX_CLIENTS;
else
end = pv->cam_spec_track;
i = end;
do
{
s = &cl.players[i];
if (s->name[0] && !s->spectator)
{
Cam_Lock(pv, i);
return;
}
i = (i + 1) % cl.allocated_client_slots;
} while (i != end);
// stay on same guy?
i = pv->cam_spec_track;
s = &cl.players[i];
if (s->name[0] && !s->spectator)
{
Cam_Lock(pv, i);
return;
}
Con_Printf("No target found ...\n");
pv->cam_auto = pv->cam_locked = false;
}
void Cam_Reset(void)
{
int pnum;
for (pnum = 0; pnum < MAX_SPLITS; pnum++)
{
playerview_t *pv = &cl.playerview[pnum];
pv->cam_auto = CAM_NONE;
pv->cam_spec_track = 0;
}
}
void Cam_TrackPlayer(int seat, char *cmdname, char *plrarg)
{
playerview_t *pv = &cl.playerview[seat];
int slot;
player_info_t *s;
if (seat >= MAX_SPLITS)
return;
if (cls.state <= ca_connected)
{
Con_Printf("Not connected.\n");
return;
}
if (!cl.spectator)
{
Con_Printf("Not spectating.\n");
return;
}
if (!Q_strcasecmp(plrarg, "off"))
{
Cam_Unlock(pv);
return;
}
// search nicks first
for (slot = 0; slot < cl.allocated_client_slots; slot++)
{
s = &cl.players[slot];
if (s->name[0] && !s->spectator && !Q_strcasecmp(s->name, plrarg))
break;
}
if (slot == cl.allocated_client_slots)
{
// didn't find nick, so search userids
int userid;
char *c;
// check if given arg is in fact a number
c = plrarg;
while (*c)
{
if (*c < '0' || *c > '9')
{
Con_Printf("Couldn't find nick %s\n", plrarg);
return;
}
c++;
}
userid = atoi(plrarg);
for (slot = 0; slot < cl.allocated_client_slots; slot++)
{
s = &cl.players[slot];
if (s->name[0] && !s->spectator && s->userid == userid)
break;
}
if (slot == cl.allocated_client_slots)
{
Con_Printf("Couldn't find userid %i\n", userid);
return;
}
}
pv->cam_auto = CAM_TRACK;
Cam_Lock(pv, slot);
pv->cam_locked = true;
pv->viewentity = slot+1;
}
void Cam_Track_f(void)
{
int i, j;
if (Cmd_Argc() < 2)
{
Con_Printf("Usage: %s userid|nick|off\n", Cmd_Argv(0));
return;
}
i = 1;
j = Cmd_Argc() - 1;
if (j > MAX_SPLITS)
j = MAX_SPLITS;
while (j > 0)
{
Cam_TrackPlayer(i - 1, Cmd_Argv(0), Cmd_Argv(i));
i++;
j--;
}
}
void Cam_Track1_f(void)
{
if (Cmd_Argc() < 2)
{
Con_Printf("Usage: %s userid|nick|off\n", Cmd_Argv(0));
return;
}
Cam_TrackPlayer(0, Cmd_Argv(0), Cmd_Argv(1));
}
void Cam_Track2_f(void)
{
if (Cmd_Argc() < 2)
{
Con_Printf("Usage: %s userid|nick|off\n", Cmd_Argv(0));
return;
}
Cam_TrackPlayer(1, Cmd_Argv(0), Cmd_Argv(1));
}
void Cam_Track3_f(void)
{
if (Cmd_Argc() < 2)
{
Con_Printf("Usage: %s userid|nick|off\n", Cmd_Argv(0));
return;
}
Cam_TrackPlayer(2, Cmd_Argv(0), Cmd_Argv(1));
}
void Cam_Track4_f(void)
{
if (Cmd_Argc() < 2)
{
Con_Printf("Usage: %s userid|nick|off\n", Cmd_Argv(0));
return;
}
Cam_TrackPlayer(3, Cmd_Argv(0), Cmd_Argv(1));
}
void CL_InitCam(void)
{
Cvar_Register (&cl_hightrack, cl_spectatorgroup);
Cvar_Register (&cl_chasecam, cl_spectatorgroup);
// Cvar_Register (&cl_camera_maxpitch, cl_spectatorgroup);
// Cvar_Register (&cl_camera_maxyaw, cl_spectatorgroup);
// Cvar_Register (&cl_selfcam, cl_spectatorgroup);
Cmd_AddCommand("track", Cam_Track_f);
Cmd_AddCommand("track1", Cam_Track1_f);
Cmd_AddCommand("track2", Cam_Track2_f);
Cmd_AddCommand("track3", Cam_Track3_f);
Cmd_AddCommand("track4", Cam_Track4_f);
}