* Add LavaTexture.

source/Minecraft.cpp

@@ -667,6 +667,7 @@ void Minecraft::init()
 	m_pTextures = new Textures(&m_options, platform());
 	m_pTextures->addDynamicTexture(new WaterTexture);
 	m_pTextures->addDynamicTexture(new WaterSideTexture);
+	m_pTextures->addDynamicTexture(new LavaTexture);
 	m_pLevelRenderer = new LevelRenderer(this, m_pTextures);
 	m_pGameRenderer = new GameRenderer(this);
 	m_pParticleEngine = new ParticleEngine(m_pLevel, m_pTextures);

source/client/common/Mth.cpp

@@ -75,6 +75,19 @@ float Mth::sqrt(float a2)
 	return sqrtf(a2);
 }
 
+// ported from 0.6.1
+unsigned Mth::fastRandom()
+{
+	int x0;
+	static int  x1, x2, x3, x4;
+
+	x0 = x1;
+	x1 = x2;
+	x2 = x3;
+	x3 = x4;
+	return(x4 = x4 ^ (unsigned(x4) >> 19) ^ x0 ^ (x0 << 11) ^ ((x0 ^ unsigned(x0 << 11)) >> 8));
+}
+
 int Mth::floor(float f)
 {
 	int result = int(f);

source/client/common/Mth.hpp

@@ -36,5 +36,6 @@ public:
 	static float random(void);
 	static float sin(float);
 	static float sqrt(float);
+	static unsigned fastRandom();
 };
 

source/client/renderer/DynamicTexture.hpp

@@ -65,3 +65,20 @@ public:
 	float* m_data3;
 	float* m_data4;
 };
+
+class LavaTexture : public DynamicTexture
+{
+public:
+	LavaTexture();
+	~LavaTexture();
+
+	void tick() override;
+
+public:
+	int field_14;
+	int field_18;
+	float* m_data1;
+	float* m_data2;
+	float* m_data3;
+	float* m_data4;
+};

source/client/renderer/LavaTexture.cpp

@@ -0,0 +1,88 @@
+/********************************************************************
+	Minecraft: Pocket Edition - Decompilation Project
+	Copyright (C) 2023 iProgramInCpp
+	
+	The following code is licensed under the BSD 1 clause license.
+	SPDX-License-Identifier: BSD-1-Clause
+ ********************************************************************/
+
+#include "DynamicTexture.hpp"
+#include "world/tile/Tile.hpp"
+
+// Decompiled from MCPE v0.6.1.
+
+LavaTexture::LavaTexture() : DynamicTexture(Tile::lava->m_TextureFrame)
+{
+	field_14 = 0;
+	field_18 = 0;
+
+	m_data1 = new float[0x400];
+	m_data2 = new float[0x400];
+	m_data3 = new float[0x400];
+	m_data4 = new float[0x400];
+
+	for (int i = 0; i < 256; i++)
+	{
+		m_data1[i] = 0.0f;
+		m_data2[i] = 0.0f;
+		m_data3[i] = 0.0f;
+		m_data4[i] = 0.0f;
+	}
+}
+
+LavaTexture::~LavaTexture()
+{
+	SAFE_DELETE(m_data1);
+	SAFE_DELETE(m_data2);
+	SAFE_DELETE(m_data3);
+	SAFE_DELETE(m_data4);
+}
+
+void LavaTexture::tick()
+{
+	for (int x = 0; x < 16; x++)
+	{
+		for (int y = 0; y < 16; y++)
+		{
+			float f = 0.0F;
+			int ax = int(Mth::sin((float(x) * float(M_PI) * 2) / 16.0f) * 1.2f);
+			int ay = int(Mth::sin((float(y) * float(M_PI) * 2) / 16.0f) * 1.2f);
+
+			for (int bx = x - 1; bx <= x + 1; bx++)
+			{
+				for (int by = y - 1; by <= y + 1; by++)
+				{
+					int k2 = bx + ay & 0xf;
+					int i3 = by + ax & 0xf;
+					f += m_data1[k2 + i3 * 16];
+				}
+			}
+
+			m_data2[x + y * 16] = f / 10.0f + ((m_data3[(x & 0xf) + (y + 0 & 0xf) * 16] + m_data3[(x + 1 & 0xf) + (y & 0xf) * 16] + m_data3[(x + 1 & 0xf) + (y + 1 & 0xf) * 16] + m_data3[(x & 0xf) + (y + 1 & 0xf) * 16]) * 0.25f) * 0.8f;
+			m_data3[x + y * 16] += m_data4[x + y * 16] * 0.01f;
+
+			if (m_data3[x + y * 16] < 0.0f)
+				m_data3[x + y * 16] = 0.0f;
+
+			m_data4[x + y * 16] -= 0.06f;
+			if (Mth::random() < 0.005f)
+				m_data4[x + y * 16] = 1.5f;
+		}
+	}
+
+	std::swap(m_data1, m_data2);
+
+	for (int i = 0; i < 256; i++)
+	{
+		float x1 = m_data1[i] * 2.0f;
+		if (x1 > 1.0f)
+			x1 = 1.0f;
+		if (x1 < 0.0f)
+			x1 = 0.0f;
+
+		m_pixels[i * 4 + 0] = int(155.0f + 100.0f * x1);
+		m_pixels[i * 4 + 1] = int(255.0f * x1 * x1);
+		m_pixels[i * 4 + 2] = int(128.0f * x1 * x1 * x1 * x1);
+		m_pixels[i * 4 + 3] = 255;
+	}
+}

source/world/item/Inventory.cpp

@@ -58,6 +58,7 @@ void Inventory::prepareCreativeInventory()
 	addCreativeItem(Tile::cloth->m_ID);
 	addCreativeItem(Tile::mossStone->m_ID);
 	addCreativeItem(Tile::bookshelf->m_ID);
+	addCreativeItem(Tile::lapisBlock->m_ID);
 	addCreativeItem(Tile::sponge->m_ID);
 	addCreativeItem(Tile::sapling->m_ID);
 	addCreativeItem(Tile::water->m_ID);

windows_vs/minecraftcpp.vcxproj

@@ -420,6 +420,7 @@
     <ClCompile Include="..\source\client\renderer\FrustumCuller.cpp" />
     <ClCompile Include="..\source\client\renderer\GameRenderer.cpp" />
     <ClCompile Include="..\source\client\renderer\ItemInHandRenderer.cpp" />
+    <ClCompile Include="..\source\client\renderer\LavaTexture.cpp" />
     <ClCompile Include="..\source\client\renderer\LevelRenderer.cpp" />
     <ClCompile Include="..\source\client\renderer\LightLayer.cpp" />
     <ClCompile Include="..\source\client\renderer\LightUpdate.cpp" />

windows_vs/minecraftcpp.vcxproj.filters

@@ -1958,6 +1958,9 @@
     <ClCompile Include="..\platforms\openal\SoundSystemAL.cpp">
       <Filter>source\platforms\openal</Filter>
     </ClCompile>
+    <ClCompile Include="..\source\client\renderer\LavaTexture.cpp">
+      <Filter>source\client\renderer</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <Text Include="..\thirdparty\raknet\CMakeLists.txt">