From b691c43c44ff180d10e7d4a9afc83b98551ff586 Mon Sep 17 00:00:00 2001
From: daoge_cmd <3523206925@qq.com>
Date: Sun, 1 Mar 2026 12:16:08 +0800
Subject: Initial commit

---
 Minecraft.Client/DripParticle.cpp | 132 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 Minecraft.Client/DripParticle.cpp

(limited to 'Minecraft.Client/DripParticle.cpp')

diff --git a/Minecraft.Client/DripParticle.cpp b/Minecraft.Client/DripParticle.cpp
new file mode 100644
index 00000000..9463976e
--- /dev/null
+++ b/Minecraft.Client/DripParticle.cpp
@@ -0,0 +1,132 @@
+#include "stdafx.h"
+#include "..\Minecraft.World\net.minecraft.world.level.h"
+#include "..\Minecraft.World\net.minecraft.world.level.material.h"
+#include "..\Minecraft.World\net.minecraft.world.level.tile.h"
+#include "..\Minecraft.World\JavaMath.h"
+#include "..\Minecraft.World\Mth.h"
+#include "DripParticle.h"
+
+DripParticle::DripParticle(Level *level, double x, double y, double z, Material *material) : Particle(level, x, y, z, 0, 0, 0)
+{
+	xd = yd = zd = 0;
+
+	unsigned int clr;
+	if (material == Material::water)
+	{
+		clr = Minecraft::GetInstance()->getColourTable()->getColor( eMinecraftColour_Particle_DripWater);
+	}
+	else
+	{
+		clr = Minecraft::GetInstance()->getColourTable()->getColor( eMinecraftColour_Particle_DripLavaStart );
+	}
+
+	rCol = ( (clr>>16)&0xFF )/255.0f;
+	gCol = ( (clr>>8)&0xFF )/255.0;
+	bCol = ( clr&0xFF )/255.0;
+
+	setMiscTex(16 * 7 + 1);
+	this->setSize(0.01f, 0.01f);
+	gravity = 0.06f;
+	this->material = material;
+	stuckTime = 40;
+
+	lifetime = (int) (64 / (Math::random() * 0.8 + 0.2));
+	xd = yd = zd = 0;
+}
+
+int DripParticle::getLightColor(float a)
+{
+	if (material == Material::water) return Particle::getLightColor(a);
+	
+	// 4J-JEV: Looks like this value was never used on the java version,
+	// but it is on ours, so I've changed this to be bright manualy.
+	int s = 0x0f;
+	int b = 0x0f;
+	return s << 20 | b << 4; // MGH changed this to a proper value as PS3 wasn't clamping the values.
+}
+
+float DripParticle::getBrightness(float a)
+{
+	if (material == Material::water) return Particle::getBrightness(a);
+	else return 1.0f;
+}
+
+void DripParticle::tick()
+{
+	xo = x;
+	yo = y;
+	zo = z;
+
+	if (material == Material::water)
+	{
+		//rCol = 0.2f;
+		//gCol = 0.3f;
+		//bCol = 1.0f;
+
+		unsigned int clr = Minecraft::GetInstance()->getColourTable()->getColor( eMinecraftColour_Particle_DripWater);
+		rCol = ( (clr>>16)&0xFF )/255.0f;
+		gCol = ( (clr>>8)&0xFF )/255.0;
+		bCol = ( clr&0xFF )/255.0;
+	}
+	else
+	{
+		//rCol = 1.0f;
+		//gCol = 16.0f / (40 - stuckTime + 16);
+		//bCol = 4.0f / (40 - stuckTime + 8);
+
+		unsigned int cStart = Minecraft::GetInstance()->getColourTable()->getColor( eMinecraftColour_Particle_DripLavaStart );
+		unsigned int cEnd = Minecraft::GetInstance()->getColourTable()->getColor( eMinecraftColour_Particle_DripLavaEnd );
+		double rStart = ( (cStart>>16)&0xFF )/255.0f, gStart = ( (cStart>>8)&0xFF )/255.0, bStart = ( cStart&0xFF )/255.0;
+		double rEnd = ( (cEnd>>16)&0xFF )/255.0f, gEnd = ( (cEnd>>8)&0xFF )/255.0, bEnd = ( cEnd&0xFF )/255.0;
+
+		float variance = (40 - stuckTime);
+		rCol = rStart - ((rStart - rEnd)/40) * variance;
+		gCol = gStart - ((gStart - gEnd)/40) * variance;
+		bCol = bStart - ((bStart - bEnd)/40) * variance;
+	}
+
+	yd -= gravity;
+	if (stuckTime-- > 0)
+	{
+		xd *= 0.02;
+		yd *= 0.02;
+		zd *= 0.02;
+		setMiscTex(16 * 7 + 1);
+	}
+	else
+	{
+		setMiscTex(16 * 7 + 0);
+	}
+	move(xd, yd, zd);
+	xd *= 0.98f;
+	yd *= 0.98f;
+	zd *= 0.98f;
+
+	if (lifetime-- <= 0) remove();
+
+	if (onGround)
+	{
+		if (material == Material::water)
+		{
+			remove();
+			level->addParticle(eParticleType_splash, x, y, z, 0, 0, 0);
+		}
+		else
+		{
+			setMiscTex(16 * 7 + 2);
+
+		}
+		xd *= 0.7f;
+		zd *= 0.7f;
+	}
+
+	Material *m = level->getMaterial(Mth::floor(x), Mth::floor(y), Mth::floor(z));
+	if (m->isLiquid() || m->isSolid())
+	{
+		double y0 = Mth::floor(y) + 1 - LiquidTile::getHeight(level->getData(Mth::floor(x), Mth::floor(y), Mth::floor(z)));
+		if (y < y0)
+		{
+			remove();
+		}
+	}
+}
-- 
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