From 7bd0b17cb73ee4c28bffc3925c65eb7b9df24da0 Mon Sep 17 00:00:00 2001
From: Allanis <allanis.saracraft.studios@gmail.com>
Date: Sun, 19 Nov 2017 00:09:17 +0000
Subject: [PATCH] [Add] Flag for invisible stuff.

---
 src/info_view.cpp     |  1 +
 src/sbre/brender.cpp  |  5 +++++
 src/sbre/primfunc.cpp |  2 ++
 src/sbre/sbre.h       |  4 ++--
 src/sbre/sbre_int.h   | 15 ++++++++-------
 5 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/src/info_view.cpp b/src/info_view.cpp
index 7b1bbb6..0fa4889 100644
--- a/src/info_view.cpp
+++ b/src/info_view.cpp
@@ -89,6 +89,7 @@ void InfoView::Draw3D(void) {
   m.z1 = -rot[2]; m.z2 = -rot[6]; m.z3 =  rot[10];
   const ShipType& stype = L3D::player->GetShipType();
 
+  sbreSetDepthRange(L3D::GetScrWidth()*0.5f, 0.0f, 1.0f);
   sbreRenderModel(&p, &m, stype.sbreModel, &params);
   glPopAttrib();
 }
diff --git a/src/sbre/brender.cpp b/src/sbre/brender.cpp
index d275572..7203614 100644
--- a/src/sbre/brender.cpp
+++ b/src/sbre/brender.cpp
@@ -88,6 +88,11 @@ static void ResolveVertices(Model* pMod, Vector* pRes, ObjParams* pObjParam) {
 
 static float g_dn, g_df, g_sd;
 static int g_wireframe = 0;
+float SBRE_ZBIAS = 0;
+
+void sbreSetZBias(float zbias) {
+  SBRE_ZBIAS = zbias;
+}
 
 void sbreSetDepthRange(float sd, float dn, float df) {
   glDepthRange(dn+SBRE_ZBIAS, df);
diff --git a/src/sbre/primfunc.cpp b/src/sbre/primfunc.cpp
index 37570cf..23b0827 100644
--- a/src/sbre/primfunc.cpp
+++ b/src/sbre/primfunc.cpp
@@ -102,6 +102,7 @@ static int PrimFuncZBias(uint16* pData, Model* pMod, RState* pState) {
 }
 
 static int PrimFuncTriFlat(uint16* pData, Model* pMod, RState* pState) {
+  if(pData[0] & RFLAG_INVISIBLE) return 4;
   Vector* pVtx = pState->pVtx;
   Vector* pVec;
   Vector norm, tv1, tv2;
@@ -133,6 +134,7 @@ static int PrimFuncTriFlat(uint16* pData, Model* pMod, RState* pState) {
 }
 
 static int PrimFuncQuadFlat(uint16* pData, Model* pMod, RState* pState) {
+  if(pData[0] & RFLAG_INVISIBLE) return 5;
   Vector* pVtx = pState->pVtx;
   Vector* pVec;
   Vector norm, tv1, tv2;
diff --git a/src/sbre/sbre.h b/src/sbre/sbre.h
index 22a45f6..8c6ee81 100644
--- a/src/sbre/sbre.h
+++ b/src/sbre/sbre.h
@@ -1,5 +1,4 @@
 #pragma once
-#include "jjtypes.h"
 #include "jjvector.h"
 
 enum animsrc {
@@ -16,7 +15,7 @@ enum animflag {
 
 struct ObjParams {
   float pAnim[10];
-  uint8 pFlag[10];
+  unsigned char pFlag[10];
 
   float linthrust[3];    /* 1.0 to -1.0 */
   float angthrust[3];    /* 1.0 to -1.0 */
@@ -46,6 +45,7 @@ struct CollMesh {
  * sd is screen depth in pixels, dn and df are like glDepthRange params.
  */
 void sbreSetDepthRange(float sd, float dn, float df);
+void sbreSetZBias(float zbias);
 void sbreSetViewport(int w, int h, float d, float zn, float zf, float dn, float df);
 void sbreSetDirLight(float* pColor, float* pDir);
 void sbreSetWireframe(int val);
diff --git a/src/sbre/sbre_int.h b/src/sbre/sbre_int.h
index efccf09..d40ed3a 100644
--- a/src/sbre/sbre_int.h
+++ b/src/sbre/sbre_int.h
@@ -149,16 +149,17 @@ enum primtype {
 extern int (*pPrimFuncTable[])(uint16*, Model*, RState*);
 extern int (*pCollFuncTable[])(uint16*, Model*, RState*);
 
-static const int RFLAG_XREF     = 0x8000;
-static const int SUBOBJ_THRUST  = 0x4000;
+static const int RFLAG_XREF       = 0x8000;
+static const int RFLAG_INVISIBLE  = 0x4000;
+static const int SUBOBJ_THRUST    = 0x4000;
 
-static const int THRUST_XREF    = 0x8000;
-static const int THRUST_NOANG   = 0x4000;
+static const int THRUST_XREF      = 0x8000;
+static const int THRUST_NOANG     = 0x4000;
 
-/* Proper value for 16-bit depth buffer. */
 //static const float SBRE_ZBIAS = 0.00002f;
-static const float SBRE_ZBIAS   = 0.00002f;
-static const float SBRE_AMB     = 0.3f;
+static const float SBRE_AMB       = 0.3f;
+
+extern float SBRE_ZBIAS;
 
 enum comptype {
   COMP_END = 0,