* Initial commit.

:)

source/World/Dimension.cpp

@@ -0,0 +1,143 @@
+#include "Dimension.hpp"
+#include "TestChunkSource.hpp"
+#include "RandomLevelSource.hpp"
+#include "ChunkCache.hpp"
+
+Dimension* Dimension::getNew(int type)
+{
+	if (type != 0) // type not supported
+		return nullptr;
+
+	return new Dimension;
+}
+
+Vec3 Dimension::getFogColor(float a, float b)
+{
+	float x1 = cosf(2 * float(M_PI) * a);
+	float x2 = x1 * 2 + 0.5f;
+
+	if (x2 < 0)
+		return Vec3(0.045176f, 0.050824f, 0.09f);
+
+	Vec3 v;
+	v.z = 1;
+
+	if (x2 <= 1.0f)
+	{
+		float p = (x2 * 0.94f) + 0.06f;
+		v.x = p * 0.75294f;
+		v.y = p * 0.84706f;
+		v.z = (x2 * 0.91f) + 0.09f;
+	}
+	else
+	{
+		v.x = 0.75294f;
+		v.y = 0.84706f;
+	}
+
+	return v;
+}
+
+float* Dimension::getSunriseColor(float a, float b)
+{
+	float ang = float(a * M_PI);
+	float x1 = Mth::cos(ang * ang); //@BUG: Meant to use Mth::cos?
+	if (x1 < -0.4f || x1>0.4f)
+		return nullptr;
+
+	float x2 = x1 / 0.4f * 0.5f + 0.5f;
+	float x3 = 1.0f - Mth::sin(x2);
+
+	m_sunriseColor[0] = x2 * 0.3f + 0.7f;
+	m_sunriseColor[1] = (x2 * x2) * 0.7f + 0.2f;
+	m_sunriseColor[2] = (x2 * x2) * 0.0f + 0.2f; //@BUG: useless multiplication by 0?
+	m_sunriseColor[3] = ((x3 * -0.99f) + 1.0f) * ((x3 * -0.99f) + 1.0f);
+
+	return m_sunriseColor;
+}
+
+float Dimension::getTimeOfDay(long l, float f)
+{
+#ifndef ENH_RUN_DAY_NIGHT_CYCLE
+	//@QUIRK: This is a constant.
+	l = 0;
+	f = 0;
+#endif
+
+	int i = int(l % 24000);
+	float f1 = (float(i) + f) / 24000.0f - 0.25f;
+	if (f1 <  0.0f)
+		f1 += 1.0f;
+	if (f1 >  1.0f)
+		f1 -= 1.0f;
+
+	// @NOTE: At this point, if the day/night cycle isn't running,
+	// f1's value should be -0.25
+
+	float f2 = f1;
+	//@NOTE: Meant to use Mth::cos?
+	f1 = 1.0f - (cosf(float(M_PI) * f1) + 1.0f) * 0.5f;
+	f1 = f2 + (f1 - f2) / 3.0f;
+	return f1;
+}
+
+void Dimension::updateLightRamp()
+{
+	for (int i = 0; i < 16; i++)
+	{
+#ifdef ENH_USE_JAVA_LIGHT_RAMP
+		float f1 = 1.0f - float(i) / 15.0f;
+		field_10[i] = ((1.0f - f1) / (f1 * 3.0f + 1.0f)) * (1.0f - 0.1f) + 0.1f;
+#else
+		// @NOTE: Adjusted calculation causes full bright tiles to render at 80% brightness.
+		// This was probably done so that highlighted tiles don't have their brightness blown up and the texture doesn't look weird.
+		field_10[i] = ((1.0f - ((i * -0.0625f) + 1.0f)) / ((((i * -0.0625f) + 1.0f) * 3.0f) + 1.0f)) * 0.95f + 0.05f;
+#endif
+	}
+}
+
+void Dimension::init()
+{
+	m_pBiomeSource = new BiomeSource(m_pLevel);
+}
+
+void Dimension::init(Level* pLevel)
+{
+	m_pLevel = pLevel;
+	init();
+	updateLightRamp();
+}
+
+Dimension::~Dimension()
+{
+	if (m_pBiomeSource)
+		delete m_pBiomeSource;
+}
+
+bool Dimension::mayRespawn()
+{
+	return true;
+}
+
+ChunkSource* Dimension::createRandomLevelSource()
+{
+#ifdef MOD_USE_FLAT_WORLD
+	return new TestChunkSource(m_pLevel);
+#else
+	return new RandomLevelSource(m_pLevel, m_pLevel->getSeed(), m_pLevel->getLevelData()->field_20);
+#endif
+}
+
+bool Dimension::isValidSpawn(int x, int z)
+{
+	TileID tile = m_pLevel->getTopTile(x, z);
+	if (tile == Tile::invisible_bedrock->m_ID)
+		return false;
+
+#ifndef ORIGINAL_CODE
+	if (tile == 0)
+		return false;
+#endif
+	
+	return Tile::tiles[tile]->isSolidRender();
+}