From 209ad8702634e72d8cb528d3df181e2300a31115 Mon Sep 17 00:00:00 2001
From: "madmaxoft@gmail.com"
 <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>
Date: Sat, 6 Jul 2013 19:43:13 +0000
Subject: BiomeVisualiser: Moved into the Tools folder

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1655 0a769ca7-a7f5-676a-18bf-c427514a06d6
---
 Tools/BiomeVisualiser/BiomeRenderer.cpp | 147 ++++++++++++++++++++++++++++++++
 1 file changed, 147 insertions(+)
 create mode 100644 Tools/BiomeVisualiser/BiomeRenderer.cpp

(limited to 'Tools/BiomeVisualiser/BiomeRenderer.cpp')

diff --git a/Tools/BiomeVisualiser/BiomeRenderer.cpp b/Tools/BiomeVisualiser/BiomeRenderer.cpp
new file mode 100644
index 000000000..7c4302d70
--- /dev/null
+++ b/Tools/BiomeVisualiser/BiomeRenderer.cpp
@@ -0,0 +1,147 @@
+
+// BiomeRenderer.cpp
+
+// Implements the cBiomeRenderer class representing the rendering engine
+
+#include "Globals.h"
+#include "BiomeRenderer.h"
+#include "Pixmap.h"
+#include "Timer.h"
+
+
+
+
+
+cBiomeRenderer::cBiomeRenderer(void) :
+	m_OriginX(160),
+	m_OriginY(160),
+	m_Zoom(1)
+{
+}
+
+
+
+
+void cBiomeRenderer::SetSource(cBiomeSource * a_Source)
+{
+	m_Cache.SetSource(a_Source);
+}
+
+
+
+
+
+bool cBiomeRenderer::Render(cPixmap & a_Pixmap)
+{
+	cTimer Timer("cBiomeRenderer::Render");
+	
+	int Wid = a_Pixmap.GetWidth();
+	int Hei = a_Pixmap.GetHeight();
+	
+	// Hint the approximate view area to the biome source so that it can adjust its caches:
+	int MinBlockX = (    - m_OriginX) / m_Zoom;
+	int MaxBlockX = (Wid - m_OriginX) / m_Zoom;
+	int MinBlockZ = (    - m_OriginY) / m_Zoom;
+	int MaxBlockZ = (Hei - m_OriginY) / m_Zoom;
+	m_Cache.HintViewArea(MinBlockX / 16 - 1, MaxBlockX / 16 + 1, MinBlockZ / 16 - 1, MaxBlockZ / 16 + 1);
+	
+	// Hold one current chunk of biome data:
+	int CurChunkX = -10000;
+	int CurChunkZ = -10000;
+	cChunkDef::BiomeMap CurBiomes;
+	
+	bool res = false;
+	
+	for (int y = 0; y < Hei; y++)
+	{
+		int BlockZ = (y - m_OriginY) / m_Zoom;
+		int ChunkZ = (BlockZ >= 0) ? (BlockZ / 16) : ((BlockZ + 1) / 16 - 1);
+		int RelZ = BlockZ - ChunkZ * 16;
+		for (int x = 0; x < Wid; x++)
+		{
+			int BlockX = (x - m_OriginX) / m_Zoom;
+			int ChunkX = (BlockX >= 0) ? (BlockX / 16) : ((BlockX + 1) / 16 - 1);
+			int RelX = BlockX - ChunkX * 16;
+			if ((ChunkZ != CurChunkZ) || (ChunkX != CurChunkX))
+			{
+				CurChunkX = ChunkX;
+				CurChunkZ = ChunkZ;
+				switch (m_Cache.GetBiome(CurChunkX, CurChunkZ, CurBiomes))
+				{
+					case cBiomeSource::baLater:
+					{
+						res = true; 
+						// fallthrough:
+					}
+					case cBiomeSource::baNever:
+					{
+						for (int i = 0; i < ARRAYCOUNT(CurBiomes); i++)
+						{
+							CurBiomes[i] = (EMCSBiome)-1;
+						}
+						break;
+					}
+				}  // switch (Biome availability)
+			}
+			EMCSBiome Biome = cChunkDef::GetBiome(CurBiomes, RelX, RelZ);
+			a_Pixmap.SetPixel(x, y, GetBiomeColor(Biome));
+		}  // for x
+	}  // for y
+	return res;
+}
+
+
+
+
+
+int cBiomeRenderer::GetBiomeColor(EMCSBiome a_Biome)
+{
+	if ((a_Biome < 0) || (a_Biome > biMaxBiome))
+	{
+		return 0xcfcfcf;  // LtGray for unknown biomes
+	}
+	
+	static int BiomeColor[] =
+	{
+		// RGB:
+		0x0000ff, /* Ocean */
+		0x00cf3f, /* Plains */
+		0xffff00, /* Desert */
+		0x7f7f7f, /* Extreme Hills */
+		0x00cf00, /* Forest */
+		0x007f3f, /* Taiga */
+		0x3f7f00, /* Swampland */
+		0x003fff, /* River */
+		0x7f0000, /* Hell */
+		0x007fff, /* Sky */
+		0x3f3fff, /* Frozen Ocean */
+		0x3f3fff, /* Frozen River */
+		0x7fffcf, /* Ice Plains */
+		0x3fcf7f, /* Ice Mountains */
+		0xcf00cf, /* Mushroom Island */
+		0x7f00ff, /* Mushroom Island Shore */
+		0xffff3f, /* Beach */
+		0xcfcf00, /* Desert Hills */
+		0x00cf3f, /* Forest Hills */
+		0x006f1f, /* Taiga Hills */
+		0x7f8f7f, /* Extreme Hills Edge */
+		0x004f00, /* Jungle */
+		0x003f00, /* Jungle Hills */
+	} ;
+	
+	return BiomeColor[a_Biome];
+}
+
+
+
+
+
+void cBiomeRenderer::MoveViewBy(int a_OffsX, int a_OffsY)
+{
+	m_OriginX += a_OffsX;
+	m_OriginY += a_OffsY;
+}
+
+
+
+
-- 
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