From 8acf0129e10f2b7ce3ec377df4b5cb95d8d93a62 Mon Sep 17 00:00:00 2001
From: madmaxoft <github@xoft.cz>
Date: Thu, 28 Nov 2013 15:57:34 +0100
Subject: BiomeVisualiser: The biome settings are read from a file.

---
 Tools/BiomeVisualiser/BiomeCache.cpp   |  5 ++
 Tools/BiomeVisualiser/BiomeViewWnd.cpp | 83 ++++++++++++++++++++++++++++++++--
 Tools/BiomeVisualiser/BiomeViewWnd.h   | 19 ++++++++
 3 files changed, 102 insertions(+), 5 deletions(-)

diff --git a/Tools/BiomeVisualiser/BiomeCache.cpp b/Tools/BiomeVisualiser/BiomeCache.cpp
index b3c308422..7d9301d8f 100644
--- a/Tools/BiomeVisualiser/BiomeCache.cpp
+++ b/Tools/BiomeVisualiser/BiomeCache.cpp
@@ -258,6 +258,11 @@ void cBiomeCache::FilterOutItems(cItems & a_Items, int a_MinChunkX, int a_MaxChu
 
 void cBiomeCache::thrProcessQueueItem(void)
 {
+	if (m_Source == NULL)
+	{
+		return;
+	}
+	
 	cItem * Item = NULL;
 	{
 		cCSLock Lock(m_CS);
diff --git a/Tools/BiomeVisualiser/BiomeViewWnd.cpp b/Tools/BiomeVisualiser/BiomeViewWnd.cpp
index 0658e3810..459a4323c 100644
--- a/Tools/BiomeVisualiser/BiomeViewWnd.cpp
+++ b/Tools/BiomeVisualiser/BiomeViewWnd.cpp
@@ -34,6 +34,8 @@ bool cBiomeViewWnd::Create(HWND a_ParentWnd, LPCTSTR a_Title)
 {
 	ASSERT(m_Wnd == NULL);
 	
+	InitBiomeView();
+	
 	// Create a regular STATIC window, then override its window procedure with our own. No need for obnoxious RegisterWindowClass() stuff.
 	m_Wnd = CreateWindow("STATIC", a_Title, WS_OVERLAPPEDWINDOW | WS_VISIBLE, 0, 0, 400, 300, a_ParentWnd, NULL, GetModuleHandle(NULL), NULL);
 	if (m_Wnd == NULL)
@@ -43,11 +45,6 @@ bool cBiomeViewWnd::Create(HWND a_ParentWnd, LPCTSTR a_Title)
 	}
 	SetWindowLongPtr(m_Wnd, GWLP_WNDPROC, m_Thunk);
 	
-	cIniFile IniFile;
-	cBiomeGen * BioGen = new cBioGenMultiStepMap(2);
-	BioGen->InitializeBiomeGen(IniFile);
-	m_Renderer.SetSource(new cGeneratorBiomeSource(BioGen));
-	
 	return true;
 }
 
@@ -55,6 +52,82 @@ bool cBiomeViewWnd::Create(HWND a_ParentWnd, LPCTSTR a_Title)
 
 
 
+void cBiomeViewWnd::InitBiomeView(void)
+{
+	cIniFile IniFile;
+	IniFile.ReadFile("world.ini");
+	AString BiomeGenName = IniFile.GetValueSet("Generator", "BiomeGen", "");
+	if (BiomeGenName.empty())
+	{
+		LOGWARN("[Generator] BiomeGen value not set in world.ini, using \"MultiStepMap\".");
+		BiomeGenName = "MultiStepMap";
+	}
+	
+	int Seed = IniFile.GetValueSetI("Generator", "Seed", 0);
+	
+	bool CacheOffByDefault = false;
+	if (NoCaseCompare(BiomeGenName, "constant") == 0)
+	{
+		m_BiomeGen = new cBioGenConstant;
+		CacheOffByDefault = true;  // we're generating faster than a cache would retrieve data :)
+	}
+	else if (NoCaseCompare(BiomeGenName, "checkerboard") == 0)
+	{
+		m_BiomeGen = new cBioGenCheckerboard;
+		CacheOffByDefault = true;  // we're (probably) generating faster than a cache would retrieve data
+	}
+	else if (NoCaseCompare(BiomeGenName, "voronoi") == 0)
+	{
+		m_BiomeGen = new cBioGenVoronoi(Seed);
+	}
+	else if (NoCaseCompare(BiomeGenName, "distortedvoronoi") == 0)
+	{
+		m_BiomeGen = new cBioGenDistortedVoronoi(Seed);
+	}
+	else
+	{
+		if (NoCaseCompare(BiomeGenName, "multistepmap") != 0)
+		{
+			LOGWARNING("Unknown BiomeGen \"%s\", using \"MultiStepMap\" instead.", BiomeGenName.c_str());
+		}
+		m_BiomeGen = new cBioGenMultiStepMap(Seed);
+
+		/*
+		// Performance-testing:
+		LOGINFO("Measuring performance of cBioGenMultiStepMap...");
+		clock_t BeginTick = clock();
+		for (int x = 0; x < 5000; x++)
+		{
+			cChunkDef::BiomeMap Biomes;
+			m_BiomeGen->GenBiomes(x * 5, x * 5, Biomes);
+		}
+		clock_t Duration = clock() - BeginTick;
+		LOGINFO("cBioGenMultiStepMap for 5000 chunks took %d ticks (%.02f sec)", Duration, (double)Duration / CLOCKS_PER_SEC);
+		//*/
+	}
+	
+	// Add a cache, if requested:
+	int CacheSize = IniFile.GetValueSetI("Generator", "BiomeGenCacheSize", CacheOffByDefault ? 0 : 64);
+	if (CacheSize > 0)
+	{
+		if (CacheSize < 4)
+		{
+			LOGWARNING("Biomegen cache size set too low, would hurt performance instead of helping. Increasing from %d to %d",
+				CacheSize, 4
+			);
+			CacheSize = 4;
+		}
+		LOGD("Using a cache for biomegen of size %d.", CacheSize);
+		m_BiomeGen = new cBioGenCache(m_BiomeGen, CacheSize);
+	}
+	m_BiomeGen->InitializeBiomeGen(IniFile);
+	m_Renderer.SetSource(new cGeneratorBiomeSource(m_BiomeGen));
+	IniFile.WriteFile("world.ini");
+}
+
+
+
+
 
 LRESULT cBiomeViewWnd::WndProc(HWND a_Wnd, UINT a_Msg, WPARAM wParam, LPARAM lParam)
 {
diff --git a/Tools/BiomeVisualiser/BiomeViewWnd.h b/Tools/BiomeVisualiser/BiomeViewWnd.h
index 88e808ab3..e3f70c7e6 100644
--- a/Tools/BiomeVisualiser/BiomeViewWnd.h
+++ b/Tools/BiomeVisualiser/BiomeViewWnd.h
@@ -3,6 +3,12 @@
 
 // Declares the cBiomeViewWnd class representing the window that displays biomes
 
+
+
+
+
+#pragma once
+
 #include "WndProcThunk.h"
 #include "BiomeRenderer.h"
 #include "BiomeCache.h"
@@ -12,6 +18,13 @@
 
 
 
+// fwd:
+class cBiomeGen;
+
+
+
+
+
 class cBiomeViewWnd
 {
 public:
@@ -26,9 +39,15 @@ protected:
 	cBiomeRenderer m_Renderer;
 	cPixmap        m_Pixmap;
 	
+	/// The generator that is to be visualised
+	cBiomeGen * m_BiomeGen;
+
 	bool  m_IsLButtonDown;
 	POINT m_MouseDown;
 	
+	
+	void InitBiomeView(void);
+	
 	LRESULT WndProc(HWND a_Wnd, UINT a_Msg, WPARAM wParam, LPARAM lParam);
 	
 	// Message handlers:
-- 
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