From 90d793f8f369bf1431d7a915198cd49b98bbe2d7 Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sat, 23 Jul 2011 16:55:26 +0300
Subject: extended content-type range

---
 src/mapnode.cpp | 92 +++++++++++++++++++++++++++++++--------------------------
 1 file changed, 50 insertions(+), 42 deletions(-)

(limited to 'src/mapnode.cpp')

diff --git a/src/mapnode.cpp b/src/mapnode.cpp
index 1e9b64989..c9f85c303 100644
--- a/src/mapnode.cpp
+++ b/src/mapnode.cpp
@@ -30,8 +30,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 ContentFeatures::~ContentFeatures()
 {
-	/*if(translate_to)
-		delete translate_to;*/
 	if(initial_metadata)
 		delete initial_metadata;
 }
@@ -83,12 +81,16 @@ void ContentFeatures::setInventoryTextureCube(std::string top,
 	inventory_texture = g_texturesource->getTextureRaw(imgname_full);
 }
 
-struct ContentFeatures g_content_features[256];
+struct ContentFeatures g_content_features[MAX_CONTENT+1];
 
-ContentFeatures & content_features(u8 i)
+ContentFeatures & content_features(content_t i)
 {
 	return g_content_features[i];
 }
+ContentFeatures & content_features(MapNode &n)
+{
+	return content_features(n.getContent());
+}
 
 /*
 	See mapnode.h for description.
@@ -128,7 +130,7 @@ void init_mapnode()
 		initial_material_type = MATERIAL_ALPHA_SIMPLE;
 	else
 		initial_material_type = MATERIAL_ALPHA_NONE;*/
-	for(u16 i=0; i<256; i++)
+	for(u16 i=0; i<MAX_CONTENT+1; i++)
 	{
 		ContentFeatures *f = &g_content_features[i];
 		// Re-initialize
@@ -142,7 +144,7 @@ void init_mapnode()
 		Initially set every block to be shown as an unknown block.
 		Don't touch CONTENT_IGNORE or CONTENT_AIR.
 	*/
-	for(u16 i=0; i<256; i++)
+	for(u16 i=0; i<MAX_CONTENT+1; i++)
 	{
 		if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 			continue;
@@ -183,7 +185,7 @@ v3s16 facedir_rotate(u8 facedir, v3s16 dir)
 
 TileSpec MapNode::getTile(v3s16 dir)
 {
-	if(content_features(d).param_type == CPT_FACEDIR_SIMPLE)
+	if(content_features(*this).param_type == CPT_FACEDIR_SIMPLE)
 		dir = facedir_rotate(param1, dir);
 	
 	TileSpec spec;
@@ -207,16 +209,16 @@ TileSpec MapNode::getTile(v3s16 dir)
 	
 	if(dir_i == -1)
 		// Non-directional
-		spec = content_features(d).tiles[0];
+		spec = content_features(*this).tiles[0];
 	else 
-		spec = content_features(d).tiles[dir_i];
+		spec = content_features(*this).tiles[dir_i];
 	
 	/*
 		If it contains some mineral, change texture id
 	*/
-	if(content_features(d).param_type == CPT_MINERAL && g_texturesource)
+	if(content_features(*this).param_type == CPT_MINERAL && g_texturesource)
 	{
-		u8 mineral = param & 0x1f;
+		u8 mineral = getMineral();
 		std::string mineral_texture_name = mineral_block_texture(mineral);
 		if(mineral_texture_name != "")
 		{
@@ -235,9 +237,9 @@ TileSpec MapNode::getTile(v3s16 dir)
 
 u8 MapNode::getMineral()
 {
-	if(content_features(d).param_type == CPT_MINERAL)
+	if(content_features(*this).param_type == CPT_MINERAL)
 	{
-		return param & 0x1f;
+		return param1 & 0x0f;
 	}
 
 	return MINERAL_NONE;
@@ -260,33 +262,36 @@ void MapNode::serialize(u8 *dest, u8 version)
 	if(!ser_ver_supported(version))
 		throw VersionMismatchException("ERROR: MapNode format not supported");
 		
-	u8 actual_d = d;
+	// Translate to wanted version
+	MapNode n_foreign = mapnode_translate_from_internal(*this, version);
 
-	// Convert from new version to old
+	u8 actual_param0 = n_foreign.param0;
+
+	// Convert special values from new version to old
 	if(version <= 18)
 	{
 		// In these versions, CONTENT_IGNORE and CONTENT_AIR
 		// are 255 and 254
-		if(actual_d == CONTENT_IGNORE)
-			actual_d = 255;
-		else if(actual_d == CONTENT_AIR)
-			actual_d = 254;
+		if(actual_param0 == CONTENT_IGNORE)
+			actual_param0 = 255;
+		else if(actual_param0 == CONTENT_AIR)
+			actual_param0 = 254;
 	}
 
 	if(version == 0)
 	{
-		dest[0] = actual_d;
+		dest[0] = actual_param0;
 	}
 	else if(version <= 9)
 	{
-		dest[0] = actual_d;
-		dest[1] = param;
+		dest[0] = actual_param0;
+		dest[1] = n_foreign.param1;
 	}
 	else
 	{
-		dest[0] = actual_d;
-		dest[1] = param;
-		dest[2] = param2;
+		dest[0] = actual_param0;
+		dest[1] = n_foreign.param1;
+		dest[2] = n_foreign.param2;
 	}
 }
 void MapNode::deSerialize(u8 *source, u8 version)
@@ -296,47 +301,50 @@ void MapNode::deSerialize(u8 *source, u8 version)
 		
 	if(version == 0)
 	{
-		d = source[0];
+		param0 = source[0];
 	}
 	else if(version == 1)
 	{
-		d = source[0];
+		param0 = source[0];
 		// This version doesn't support saved lighting
 		if(light_propagates() || light_source() > 0)
-			param = 0;
+			param1 = 0;
 		else
-			param = source[1];
+			param1 = source[1];
 	}
 	else if(version <= 9)
 	{
-		d = source[0];
-		param = source[1];
+		param0 = source[0];
+		param1 = source[1];
 	}
 	else
 	{
-		d = source[0];
-		param = source[1];
+		param0 = source[0];
+		param1 = source[1];
 		param2 = source[2];
 	}
 	
-	// Convert from old version to new
+	// Convert special values from old version to new
 	if(version <= 18)
 	{
 		// In these versions, CONTENT_IGNORE and CONTENT_AIR
 		// are 255 and 254
-		if(d == 255)
-			d = CONTENT_IGNORE;
-		else if(d == 254)
-			d = CONTENT_AIR;
+		if(param0 == 255)
+			param0 = CONTENT_IGNORE;
+		else if(param0 == 254)
+			param0 = CONTENT_AIR;
 	}
 	// version 19 is fucked up with sometimes the old values and sometimes not
 	if(version == 19)
 	{
-		if(d == 255)
-			d = CONTENT_IGNORE;
-		else if(d == 254)
-			d = CONTENT_AIR;
+		if(param0 == 255)
+			param0 = CONTENT_IGNORE;
+		else if(param0 == 254)
+			param0 = CONTENT_AIR;
 	}
+
+	// Translate to our known version
+	*this = mapnode_translate_to_internal(*this, version);
 }
 
 /*
-- 
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