void V_Move( int mx, int my )
{
float fov;
float fx, fy;
float dx, dy;
float c_x, c_y;
float dX, dY;
vec3_t forward, up, right;
vec3_t newangles;
vec3_t farpoint;
pmtrace_t tr;
fov = CalcFov( in_fov, (float)ScreenWidth, (float)ScreenHeight );
c_x = (float)ScreenWidth / 2.0;
c_y = (float)ScreenHeight / 2.0;
dx = (float)mx - c_x;
dy = (float)my - c_y;
// Proportion we moved in each direction
fx = dx / c_x;
fy = dy / c_y;
dX = fx * in_fov / 2.0 ;
dY = fy * fov / 2.0;
newangles = v_angles;
newangles[ YAW ] -= dX;
newangles[ PITCH ] += dY;
// Now rotate v_forward around that point
AngleVectors ( newangles, forward, right, up );
farpoint = v_origin + 8192 * forward;
// Trace
tr = *(gEngfuncs.PM_TraceLine( (float *)&v_origin, (float *)&farpoint, PM_TRACELINE_PHYSENTSONLY, 2 /*point sized hull*/, -1 ));
if ( tr.fraction != 1.0 && tr.ent != 0 )
{
hitent = PM_GetPhysEntInfo( tr.ent );
PM_ParticleLine( (float *)&v_origin, (float *)&tr.endpos, 5, 1.0, 0.0 );
}
else
{
hitent = -1;
}
}
// Get the origin of the Observer based around the target's position and angles
void V_GetChaseOrigin( float * angles, float * origin, float distance, float * returnvec )
{
Vector vecStart, vecEnd;
pmtrace_t *trace;
int maxLoops = 8;
Vector forward, right, up;
// trace back from the target using the player's view angles
AngleVectors( angles, forward, right, up );
forward = -forward;
vecStart = origin;
vecEnd = vecStart + forward * distance;
int ignoreent = -1; // first, ignore no entity
cl_entity_t *ent = NULL;
while( maxLoops > 0 )
{
trace = gEngfuncs.PM_TraceLine( vecStart, vecEnd, PM_TRACELINE_PHYSENTSONLY, 2, ignoreent );
if( trace->ent <= 0 )
break; // we hit the world or nothing, stop trace
ent = gEngfuncs.GetEntityByIndex( PM_GetPhysEntInfo( trace->ent ));
if( ent == NULL ) break;
// hit non-player solid BSP, stop here
if( ent->curstate.solid == SOLID_BSP && !ent->player )
break;
// if close enought to end pos, stop, otherwise continue trace
if( trace->fraction < 1.0f )
{
break;
}
else
{
ignoreent = trace->ent; // ignore last hit entity
vecStart = trace->endpos;
}
maxLoops--;
}
VectorMA( trace->endpos, 8, trace->plane.normal, returnvec );
v_lastDistance = (trace->endpos - Vector(origin)).Length(); // real distance without offset
}
//==========================
// V_GetChaseOrigin
//==========================
void V_GetChaseOrigin( const Vector &angles, const Vector &origin, float distance, Vector &returnvec )
{
Vector vecStart, vecEnd;
pmtrace_t *trace;
int maxLoops = 8;
Vector forward, right, up;
// trace back from the target using the player's view angles
AngleVectors( angles, forward, right, up );
forward = -forward;
vecStart = origin;
vecEnd = vecStart + forward * distance;
int ignoreent = -1; // first, ignore no entity
cl_entity_t *ent = NULL;
while( maxLoops > 0 )
{
trace = gEngfuncs.PM_TraceLine( vecStart, vecEnd, PM_TRACELINE_PHYSENTSONLY, 2, ignoreent );
if( trace->ent <= 0 ) break; // we hit the world or nothing, stop trace
ent = GET_ENTITY( PM_GetPhysEntInfo( trace->ent ));
if( ent == NULL ) break;
// hit non-player solid BSP, stop here
if( ent->curstate.solid == SOLID_BSP && !ent->player )
break;
// if close enought to end pos, stop, otherwise continue trace
if(( vecEnd - trace->endpos ).Length() < 1.0f )
{
break;
}
else
{
ignoreent = trace->ent; // ignore last hit entity
vecStart = trace->endpos;
}
maxLoops--;
}
returnvec = trace->endpos + trace->plane.normal * 8;
}
// Get the origin of the Observer based around the target's position and angles
void V_GetChaseOrigin( float * angles, float * origin, float distance, float * returnvec )
{
vec3_t vecEnd;
vec3_t forward;
vec3_t vecStart;
pmtrace_t * trace;
int maxLoops = 8;
int ignoreent = -1; // first, ignore no entity
cl_entity_t * ent = NULL;
// Trace back from the target using the player's view angles
AngleVectors(angles, forward, NULL, NULL);
VectorScale(forward,-1,forward);
VectorCopy( origin, vecStart );
VectorMA(vecStart, distance , forward, vecEnd);
while ( maxLoops > 0)
{
trace = gEngfuncs.PM_TraceLine( vecStart, vecEnd, PM_TRACELINE_PHYSENTSONLY, 2, ignoreent );
// WARNING! trace->ent is is the number in physent list not the normal entity number
if ( trace->ent <= 0)
break; // we hit the world or nothing, stop trace
ent = gEngfuncs.GetEntityByIndex( PM_GetPhysEntInfo( trace->ent ) );
if ( ent == NULL )
break;
// hit non-player solid BSP , stop here
if ( ent->curstate.solid == SOLID_BSP && !ent->player )
break;
// if close enought to end pos, stop, otherwise continue trace
if( Distance(trace->endpos, vecEnd ) < 1.0f )
{
break;
}
else
{
ignoreent = trace->ent; // ignore last hit entity
VectorCopy( trace->endpos, vecStart);
}
maxLoops--;
}
/* if ( ent )
{
gEngfuncs.Con_Printf("Trace loops %i , entity %i, model %s, solid %i\n",(8-maxLoops),ent->curstate.number, ent->model->name , ent->curstate.solid );
} */
VectorMA( trace->endpos, 4, trace->plane.normal, returnvec );
v_lastDistance = Distance(trace->endpos, origin); // real distance without offset
}
