Lens flares :)

4 files changed, 62 insertions, 0 deletions

diff --git a/src/cgame/cg_ents.c b/src/cgame/cg_ents.c
index dc65015b..0c0d6e9e 100644
--- a/src/cgame/cg_ents.c
+++ b/src/cgame/cg_ents.c
@@ -777,6 +777,52 @@ static void CG_TorchLight( centity_t *cent )
 
 /*
 =========================
+CG_LensFlare
+=========================
+*/
+static void CG_LensFlare( centity_t *cent )
+{
+  refEntity_t   flare;
+  entityState_t *es;
+  vec3_t        forward, delta;
+  float         len;
+  trace_t       tr;
+
+  es = &cent->currentState;
+  
+  memset( &flare, 0, sizeof( flare ) );
+  
+  //bunch of geometry
+  AngleVectors( cent->lerpAngles, forward, NULL, NULL );
+  VectorCopy( cent->lerpOrigin, flare.origin );
+  VectorSubtract( flare.origin, cg.refdef.vieworg, delta );
+  len = VectorLength( delta );
+  VectorNormalize( delta );
+
+  flare.reType = RT_SPRITE;
+  flare.customShader = cgs.gameShaders[ es->modelindex ];
+  flare.shaderRGBA[ 0 ] = 0xFF;
+  flare.shaderRGBA[ 1 ] = 0xFF;
+  flare.shaderRGBA[ 2 ] = 0xFF;
+  flare.shaderRGBA[ 3 ] = 0xFF;
+
+  //can only see the flare when in front of it
+  flare.radius = len / es->origin2[ 0 ];
+  flare.radius *= DotProduct( delta, forward );
+
+  //if can't see the centre do not draw
+  CG_Trace( &tr, flare.origin, NULL, NULL, cg.refdef.vieworg, 0, MASK_SHOT );
+  if( tr.fraction < 1.0f )
+    return;
+
+  if( flare.radius < 0 )
+    flare.radius = 0;
+
+  trap_R_AddRefEntityToScene( &flare );
+}
+
+/*
+=========================
 CG_AdjustPositionForMover
 
 Also called by client movement prediction code
@@ -959,6 +1005,9 @@ static void CG_AddCEntity( centity_t *cent ) {
   case ET_ANIMMAPOBJ:
     CG_animMapObj( cent );
     break;
+  case ET_LENSFLARE:
+    CG_LensFlare( cent );
+    break;
   }
 }
 
diff --git a/src/game/bg_public.h b/src/game/bg_public.h
index f5e5cef1..e4fd3704 100644
--- a/src/game/bg_public.h
+++ b/src/game/bg_public.h
@@ -1011,6 +1011,7 @@ typedef enum {
   ET_CORPSE,
   ET_SPRITER,
   ET_ANIMMAPOBJ,
+  ET_LENSFLARE,
 
   ET_EVENTS       // any of the EV_* events can be added freestanding
               // by setting eType to ET_EVENTS + eventNum
diff --git a/src/game/g_misc.c b/src/game/g_misc.c
index 03530500..b6711afd 100644
--- a/src/game/g_misc.c
+++ b/src/game/g_misc.c
@@ -459,3 +459,13 @@ void SP_misc_anim_model( gentity_t *self )
   
   trap_LinkEntity( self );
 }
+
+//TA: spawn function for lens flares
+void SP_misc_lens_flare( gentity_t *self )
+{
+  self->s.eType = ET_LENSFLARE;
+  self->s.modelindex = G_ShaderIndex( self->targetShaderName );
+  VectorCopy( self->pos2, self->s.origin2 );
+
+  trap_LinkEntity( self );
+}
diff --git a/src/game/g_spawn.c b/src/game/g_spawn.c
index 101a1acb..f3afeb12 100644
--- a/src/game/g_spawn.c
+++ b/src/game/g_spawn.c
@@ -215,6 +215,7 @@ void SP_team_CTF_bluespawn( gentity_t *ent );
 //TA:
 void SP_misc_spriter( gentity_t *ent );
 void SP_misc_anim_model( gentity_t *ent );
+void SP_misc_lens_flare( gentity_t *ent );
 
 spawn_t spawns[] = {
   // info entities don't do anything at all, but provide positional
@@ -289,6 +290,7 @@ spawn_t spawns[] = {
 
   {"misc_spriter", SP_misc_spriter},
   {"misc_anim_model", SP_misc_anim_model},
+  {"misc_lens_flare", SP_misc_lens_flare},
   
   {0, 0}
 };