From 64b59757322e29c331c0a75262baec4382673e6f Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Fri, 28 Jan 2011 01:38:16 +0200
Subject: Now texture handling is fast. Also now players are saved on disk.

---
 src/texture.h | 124 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/texture.h

(limited to 'src/texture.h')

diff --git a/src/texture.h b/src/texture.h
new file mode 100644
index 000000000..f14efae11
--- /dev/null
+++ b/src/texture.h
@@ -0,0 +1,124 @@
+/*
+Minetest-c55
+Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef TEXTURE_HEADER
+#define TEXTURE_HEADER
+
+#include "common_irrlicht.h"
+//#include "utility.h"
+#include "debug.h"
+
+/*
+	All textures are given a "texture id".
+	0 = nothing (a NULL pointer texture)
+*/
+typedef u16 textureid_t;
+
+/*
+	Every texture in the game can be specified by this.
+	
+	It exists instead of specification strings because arbitary
+	texture combinations for map nodes are handled using this,
+	and strings are too slow for that purpose.
+
+	Plain texture pointers are not used because they don't contain
+	content information by themselves. A texture can be completely
+	reconstructed by just looking at this, while this also is a
+	fast unique key to containers.
+*/
+
+#define TEXTURE_SPEC_TEXTURE_COUNT 4
+
+struct TextureSpec
+{
+	TextureSpec()
+	{
+		clear();
+	}
+
+	TextureSpec(textureid_t id0)
+	{
+		clear();
+		tids[0] = id0;
+	}
+
+	TextureSpec(textureid_t id0, textureid_t id1)
+	{
+		clear();
+		tids[0] = id0;
+		tids[1] = id1;
+	}
+
+	void clear()
+	{
+		for(u32 i=0; i<TEXTURE_SPEC_TEXTURE_COUNT; i++)
+		{
+			tids[i] = 0;
+		}
+	}
+
+	bool empty() const
+	{
+		for(u32 i=0; i<TEXTURE_SPEC_TEXTURE_COUNT; i++)
+		{
+			if(tids[i] != 0)
+				return false;
+		}
+		return true;
+	}
+
+	void addTid(textureid_t tid)
+	{
+		for(u32 i=0; i<TEXTURE_SPEC_TEXTURE_COUNT; i++)
+		{
+			if(tids[i] == 0)
+			{
+				tids[i] = tid;
+				return;
+			}
+		}
+		// Too many textures
+		assert(0);
+	}
+
+	bool operator==(const TextureSpec &other) const
+	{
+		for(u32 i=0; i<TEXTURE_SPEC_TEXTURE_COUNT; i++)
+		{
+			if(tids[i] != other.tids[i])
+				return false;
+		}
+		return true;
+	}
+
+	bool operator<(const TextureSpec &other) const
+	{
+		for(u32 i=0; i<TEXTURE_SPEC_TEXTURE_COUNT; i++)
+		{
+			if(tids[i] >= other.tids[i])
+				return false;
+		}
+		return true;
+	}
+
+	// Ids of textures. They are blit on each other.
+	textureid_t tids[TEXTURE_SPEC_TEXTURE_COUNT];
+};
+
+#endif
-- 
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