/*
================
R_DrawMirrors
Draw all viewpasess from mirror position
Mirror textures will be drawn in normal pass
================
*/
void R_DrawMirrors( void )
{
ref_instance_t oldRI;
mplane_t plane;
msurface_t *surf, *surf2;
int i, oldframecount;
mextrasurf_t *es, *tmp, *mirrorchain;
vec3_t forward, right, up;
vec3_t origin, angles;
matrix4x4 mirrormatrix;
cl_entity_t *e;
model_t *m;
float d;
if( !tr.num_mirror_entities ) return; // mo mirrors for this frame
oldRI = RI; // make refinst backup
oldframecount = tr.framecount;
for( i = 0; i < tr.num_mirror_entities; i++ )
{
mirrorchain = tr.mirror_entities[i].chain;
for( es = mirrorchain; es != NULL; es = es->mirrorchain )
{
RI.currententity = e = tr.mirror_entities[i].ent;
RI.currentmodel = m = RI.currententity->model;
surf = INFO_SURF( es, m );
ASSERT( RI.currententity != NULL );
ASSERT( RI.currentmodel != NULL );
// NOTE: copy mirrortexture and mirrormatrix from another surfaces
// from this entity\world that has same planes and reduce number of viewpasses
// make sure what we have one pass at least
if( es != mirrorchain )
{
for( tmp = mirrorchain; tmp != es; tmp = tmp->mirrorchain )
{
surf2 = INFO_SURF( tmp, m );
if( !tmp->mirrortexturenum )
continue; // not filled?
if( surf->plane->dist != surf2->plane->dist )
continue;
if( !VectorCompare( surf->plane->normal, surf2->plane->normal ))
continue;
// found surface with same plane!
break;
}
if( tmp != es && tmp && tmp->mirrortexturenum )
{
// just copy reflection texture from surface with same plane
Matrix4x4_Copy( es->mirrormatrix, tmp->mirrormatrix );
es->mirrortexturenum = tmp->mirrortexturenum;
continue; // pass skiped
}
}
R_PlaneForMirror( surf, &plane, mirrormatrix );
d = -2.0f * ( DotProduct( RI.vieworg, plane.normal ) - plane.dist );
VectorMA( RI.vieworg, d, plane.normal, origin );
d = -2.0f * DotProduct( RI.vforward, plane.normal );
VectorMA( RI.vforward, d, plane.normal, forward );
VectorNormalize( forward );
d = -2.0f * DotProduct( RI.vright, plane.normal );
VectorMA( RI.vright, d, plane.normal, right );
VectorNormalize( right );
d = -2.0f * DotProduct( RI.vup, plane.normal );
VectorMA( RI.vup, d, plane.normal, up );
VectorNormalize( up );
VectorsAngles( forward, right, up, angles );
angles[ROLL] = -angles[ROLL];
RI.params = RP_MIRRORVIEW|RP_CLIPPLANE|RP_OLDVIEWLEAF;
RI.clipPlane = plane;
RI.clipFlags |= ( 1<<5 );
RI.frustum[5] = plane;
RI.frustum[5].signbits = SignbitsForPlane( RI.frustum[5].normal );
RI.frustum[5].type = PLANE_NONAXIAL;
RI.refdef.viewangles[0] = anglemod( angles[0] );
RI.refdef.viewangles[1] = anglemod( angles[1] );
RI.refdef.viewangles[2] = anglemod( angles[2] );
VectorCopy( origin, RI.refdef.vieworg );
VectorCopy( origin, RI.cullorigin );
// put pvsorigin before the mirror plane to avoid get full visibility on world mirrors
if( RI.currententity == clgame.entities )
{
VectorMA( es->origin, 1.0f, plane.normal, origin );
}
else
{
Matrix4x4_VectorTransform( mirrormatrix, es->origin, origin );
VectorMA( origin, 1.0f, plane.normal, origin );
}
VectorCopy( origin, RI.pvsorigin );
// combine two leafs from client and mirror views
r_viewleaf = Mod_PointInLeaf( oldRI.pvsorigin, cl.worldmodel->nodes );
r_viewleaf2 = Mod_PointInLeaf( RI.pvsorigin, cl.worldmodel->nodes );
if( GL_Support( GL_ARB_TEXTURE_NPOT_EXT ))
{
// allow screen size
RI.viewport[2] = bound( 96, RI.viewport[2], 1024 );
RI.viewport[3] = bound( 72, RI.viewport[3], 768 );
}
else
{
RI.viewport[2] = NearestPOW( RI.viewport[2], true );
RI.viewport[3] = NearestPOW( RI.viewport[3], true );
RI.viewport[2] = bound( 128, RI.viewport[2], 1024 );
RI.viewport[3] = bound( 64, RI.viewport[3], 512 );
}
tr.framecount++;
R_RenderScene( &RI.refdef );
r_stats.c_mirror_passes++;
es->mirrortexturenum = R_AllocateMirrorTexture();
// create personal projection matrix for mirror
if( VectorIsNull( e->origin ) && VectorIsNull( e->angles ))
{
Matrix4x4_Copy( es->mirrormatrix, RI.worldviewProjectionMatrix );
}
else
{
Matrix4x4_ConcatTransforms( RI.modelviewMatrix, RI.worldviewMatrix, mirrormatrix );
Matrix4x4_Concat( es->mirrormatrix, RI.projectionMatrix, RI.modelviewMatrix );
}
RI = oldRI; // restore ref instance
}
// clear chain for this entity
for( es = mirrorchain; es != NULL; )
{
tmp = es->mirrorchain;
es->mirrorchain = NULL;
es = tmp;
}
tr.mirror_entities[i].chain = NULL; // done
tr.mirror_entities[i].ent = NULL;
}
r_oldviewleaf = r_viewleaf = NULL; // force markleafs next frame
tr.framecount = oldframecount; // restore real framecount
tr.num_mirror_entities = 0;
tr.num_mirrors_used = 0;
}
/*
============
SV_PushRotate
============
*/
static edict_t *SV_PushRotate( edict_t *pusher, float movetime )
{
int i, e, block, oldsolid;
matrix4x4 start_l, end_l;
vec3_t lmove, amove;
sv_pushed_t *p, *pushed_p;
vec3_t org, org2, temp;
edict_t *check;
if( svgame.globals->changelevel || VectorIsNull( pusher->v.avelocity ))
{
pusher->v.ltime += movetime;
return NULL;
}
for( i = 0; i < 3; i++ )
amove[i] = pusher->v.avelocity[i] * movetime;
// create pusher initial position
Matrix4x4_CreateFromEntity( start_l, pusher->v.angles, pusher->v.origin, 1.0f );
pushed_p = svgame.pushed;
// save the pusher's original position
pushed_p->ent = pusher;
VectorCopy( pusher->v.origin, pushed_p->origin );
VectorCopy( pusher->v.angles, pushed_p->angles );
pushed_p++;
// move the pusher to it's final position
SV_AngularMove( pusher, movetime, pusher->v.friction );
SV_LinkEdict( pusher, false );
pusher->v.ltime += movetime;
oldsolid = pusher->v.solid;
// non-solid pushers can't push anything
if( pusher->v.solid == SOLID_NOT )
return NULL;
// create pusher final position
Matrix4x4_CreateFromEntity( end_l, pusher->v.angles, pusher->v.origin, 1.0f );
// see if any solid entities are inside the final position
for( e = 1; e < svgame.numEntities; e++ )
{
check = EDICT_NUM( e );
if( !SV_IsValidEdict( check ))
continue;
// filter movetypes to collide with
if( !SV_CanPushed( check ))
continue;
pusher->v.solid = SOLID_NOT;
block = SV_TestEntityPosition( check, pusher );
pusher->v.solid = oldsolid;
if( block ) continue;
// if the entity is standing on the pusher, it will definately be moved
if( !(( check->v.flags & FL_ONGROUND ) && check->v.groundentity == pusher ))
{
if( check->v.absmin[0] >= pusher->v.absmax[0]
|| check->v.absmin[1] >= pusher->v.absmax[1]
|| check->v.absmin[2] >= pusher->v.absmax[2]
|| check->v.absmax[0] <= pusher->v.absmin[0]
|| check->v.absmax[1] <= pusher->v.absmin[1]
|| check->v.absmax[2] <= pusher->v.absmin[2] )
continue;
// see if the ent's bbox is inside the pusher's final position
if( !SV_TestEntityPosition( check, NULL ))
continue;
}
// save original position of contacted entity
pushed_p->ent = check;
VectorCopy( check->v.origin, pushed_p->origin );
VectorCopy( check->v.angles, pushed_p->angles );
pushed_p->fixangle = check->v.fixangle;
pushed_p++;
// calculate destination position
if( check->v.movetype == MOVETYPE_PUSHSTEP || check->v.movetype == MOVETYPE_STEP )
VectorAverage( check->v.absmin, check->v.absmax, org );
else VectorCopy( check->v.origin, org );
Matrix4x4_VectorITransform( start_l, org, temp );
Matrix4x4_VectorTransform( end_l, temp, org2 );
VectorSubtract( org2, org, lmove );
// i can't clear FL_ONGROUND in all cases because many bad things may be happen
if( check->v.movetype != MOVETYPE_WALK )
{
if( lmove[2] != 0.0f ) check->v.flags &= ~FL_ONGROUND;
if( lmove[2] < 0.0f && !pusher->v.dmg )
lmove[2] = 0.0f; // let's the free falling
}
// try moving the contacted entity
pusher->v.solid = SOLID_NOT;
SV_PushEntity( check, lmove, amove, &block );
pusher->v.solid = oldsolid;
// pushed entity blocked by wall
if( block && check->v.movetype != MOVETYPE_WALK )
check->v.flags &= ~FL_ONGROUND;
// if it is still inside the pusher, block
if( SV_TestEntityPosition( check, NULL ) && block )
{
if( !SV_CanBlock( check ))
continue;
pusher->v.ltime -= movetime;
// move back any entities we already moved
// go backwards, so if the same entity was pushed
// twice, it goes back to the original position
for( p = pushed_p - 1; p >= svgame.pushed; p-- )
{
VectorCopy( p->origin, p->ent->v.origin );
VectorCopy( p->angles, p->ent->v.angles );
SV_LinkEdict( p->ent, (p->ent == check) ? true : false );
p->ent->v.fixangle = p->fixangle;
}
return check;
}
}
return NULL;
}
