From 1c74d2fca77f8fecef650fc0ec390ae6165a01d6 Mon Sep 17 00:00:00 2001
From: havoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Fri, 27 Sep 2002 05:23:34 +0000
Subject: [PATCH] added Mod_FindTriangleWithEdge and Mod_BuildTriangleNeighbors
 functions (not used by anything) added Mod_LoadModels function, which is
 called when renderer is restarted or "modelflush" is used, it reloads all
 models that are used

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@2450 d7cf8633-e32d-0410-b094-e92efae38249
---
 model_shared.c | 40 ++++++++++++++++++++++++++++++++++++++++
 model_shared.h |  4 ++++
 2 files changed, 44 insertions(+)

diff --git a/model_shared.c b/model_shared.c
index 9da66893..0d3eacfd 100644
--- a/model_shared.c
+++ b/model_shared.c
@@ -75,6 +75,7 @@ static void mod_start(void)
 	for (i = 0;i < MAX_MOD_KNOWN;i++)
 		if (mod_known[i].name[0])
 			Mod_UnloadModel(&mod_known[i]);
+	Mod_LoadModels();
 
 	Mod_SetupNoTexture();
 	Mod_BrushStartup();
@@ -270,6 +271,17 @@ void Mod_PurgeUnused(void)
 				Mod_FreeModel(mod);
 }
 
+void Mod_LoadModels(void)
+{
+	int i;
+	model_t *mod;
+
+	for (i = 0, mod = mod_known;i < MAX_MOD_KNOWN;i++, mod++)
+		if (mod->name[0])
+			if (mod->used)
+				Mod_CheckLoaded(mod);
+}
+
 /*
 ==================
 Mod_FindName
@@ -368,4 +380,32 @@ static void Mod_Flush (void)
 	for (i = 0;i < MAX_MOD_KNOWN;i++)
 		if (mod_known[i].name[0])
 			Mod_UnloadModel(&mod_known[i]);
+	Mod_LoadModels();
+}
+
+int Mod_FindTriangleWithEdge(int *elements, int numtriangles, int start, int end)
+{
+	int i;
+	for (i = 0;i < numtriangles;i++, elements += 3)
+	{
+		if (elements[0] == start && elements[1] == end)
+			return i;
+		if (elements[1] == start && elements[2] == end)
+			return i;
+		if (elements[2] == start && elements[0] == end)
+			return i;
+	}
+	return -1;
+}
+
+int *Mod_BuildTriangleNeighbors(int *neighbors, int *elements, int numtriangles)
+{
+	int i, *e, *n;
+	for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
+	{
+		n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0]);
+		n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1]);
+		n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2]);
+	}
+	return neighbors;
 }
diff --git a/model_shared.h b/model_shared.h
index 4fb9af4f..898d30be 100644
--- a/model_shared.h
+++ b/model_shared.h
@@ -230,9 +230,13 @@ void Mod_UnloadModel (model_t *mod);
 
 void Mod_ClearUsed(void);
 void Mod_PurgeUnused(void);
+void Mod_LoadModels(void);
 
 extern model_t *loadmodel;
 extern char loadname[32];	// for hunk tags
 
+int Mod_FindTriangleWithEdge(int *elements, int numtriangles, int start, int end);
+int *Mod_BuildTriangleNeighbors(int *neighbors, int *elements, int numtriangles);
+
 #endif	// __MODEL__
 
-- 
2.39.2