the whole game

src/world/level/biome/BiomeSource.cpp

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+#include "BiomeSource.h"
+#include "Biome.h"
+#include "../Level.h"
+#include "../ChunkPos.h"
+
+const float BiomeSource::zoom = 2 * 1;
+
+const float BiomeSource::tempScale = zoom / 80.0f;
+const float BiomeSource::downfallScale = zoom / 40.0f;
+const float BiomeSource::noiseScale = 1 / 4.0f;
+
+BiomeSource::BiomeSource()
+:	temperatureMap(NULL),
+	downfallMap(NULL),
+	noiseMap(NULL),
+	lenTemperatures(0),
+	lenDownfalls(0),
+	lenNoises(0),
+	lenBiomes(0),
+	temperatures(NULL),
+	downfalls(NULL),
+	noises(NULL),
+	biomes(NULL)
+{
+	biomes = new Biome*[16*16];
+}
+
+BiomeSource::BiomeSource( Level* level )
+:	rndTemperature(level->getSeed() * 9871),
+	rndDownfall(level->getSeed() * 39811),
+	rndNoise(level->getSeed() * 543321),
+	lenTemperatures(0),
+	lenDownfalls(0),
+	lenNoises(0),
+	lenBiomes(0),
+	temperatures(NULL),
+	downfalls(NULL),
+	noises(NULL),
+	biomes(NULL)
+{
+	temperatureMap = new PerlinSimplexNoise(&rndTemperature, 4);
+	downfallMap = new PerlinSimplexNoise(&rndDownfall, 4);
+	noiseMap = new PerlinSimplexNoise(&rndNoise, 2);
+
+	biomes = new Biome*[16*16];
+	temperatures = new float[16*16];
+}
+
+BiomeSource::~BiomeSource() {
+	LOGI("Deleting biome maps...\n");
+	delete temperatureMap;
+	delete downfallMap;
+	delete noiseMap;
+
+	LOGI("Deleting biome data arrays...\n");
+	delete[] temperatures;
+	delete[] downfalls;
+	delete[] noises;
+	delete[] biomes;
+}
+
+Biome* BiomeSource::getBiome( const ChunkPos& chunk )
+{
+	return getBiome(chunk.x << 4, chunk.z << 4);
+}
+
+Biome* BiomeSource::getBiome( int x, int z )
+{
+	return getBiomeBlock(x, z, 1, 1)[0];
+}
+
+//float BiomeSource::getTemperature( int x, int z )
+//{
+//	temperatures = temperatureMap->getRegion(temperatures, x, z, 1, 1, tempScale, tempScale, 0.5f);
+//	return temperatures[0];
+//}
+
+Biome** BiomeSource::getBiomeBlock( int x, int z, int w, int h )
+{
+    biomes = getBiomeBlock(biomes, x, z, w, h);
+    return biomes;
+}
+
+Biome** BiomeSource::getBiomeBlock( Biome** biomes__, int x, int z, int w, int h )
+{
+	//for (int i = 0; i < w*h; ++i) biomes__[i] = Biome::tundra;
+	//const int size = w * h;
+	//if (lenBiomes < size) {
+	//	//printf("changing to size: %d (was %d). %d, %d (%d, %d)\n", size, lenBiomes, x, z, w, h);
+	//	if (biomes) delete[] biomes;
+	//	biomes = new Biome*[size];
+	//	lenBiomes = size;
+	//}
+
+	temperatures = temperatureMap->getRegion(temperatures, x, z, w, w, tempScale, tempScale, 0.25f);
+	downfalls = downfallMap->getRegion(downfalls, x, z, w, w, downfallScale, downfallScale, 0.3333f);
+	noises = noiseMap->getRegion(noises, x, z, w, w, noiseScale, noiseScale, 0.588f);
+
+	int pp = 0;
+	for (int yy = 0; yy < w; yy++) {
+		for (int xx = 0; xx < h; xx++) {
+			float noise = (noises[pp] * 1.1f + 0.5f);
+
+			float split2 = 0.01f;
+			float split1 = 1 - split2;
+			float temperature = (temperatures[pp] * 0.15f + 0.7f) * split1 + noise * split2;
+			split2 = 0.002f;
+			split1 = 1 - split2;
+			float downfall = (downfalls[pp] * 0.15f + 0.5f) * split1 + noise * split2;
+			temperature = 1 - ((1 - temperature) * (1 - temperature));
+			if (temperature < 0) temperature = 0;
+			if (downfall < 0) downfall = 0;
+			if (temperature > 1) temperature = 1;
+			if (downfall > 1) downfall = 1;
+
+			temperatures[pp] = temperature;
+			downfalls[pp] = downfall;
+			// System.out.println(downfall);
+			biomes[pp++] = Biome::getBiome(temperature, downfall);
+		}
+	}
+
+	return biomes;
+}
+
+float* BiomeSource::getTemperatureBlock( /*float* temperatures__, */int x, int z, int w, int h )
+{
+	//LOGI("gTempBlock: 1\n");
+	//const int size = w * h;
+	//if (lenTemperatures < size) {
+	//	if (temperatures) delete[] temperatures;
+	//	temperatures = new float[size];
+	//	lenTemperatures = size;
+	//}
+
+	float * ot = temperatures;
+	temperatures = temperatureMap->getRegion(temperatures, x, z, w, h, tempScale, tempScale, 0.25f);
+	noises = noiseMap->getRegion(noises, x, z, w, h, noiseScale, noiseScale, 0.588f);
+
+	if (ot != temperatures) {
+		LOGI("tmp ptr changed\n");
+	}
+
+	int pp = 0;
+	for (int yy = 0; yy < w; yy++) {
+		for (int xx = 0; xx < h; xx++) {
+			float noise = (noises[pp] * 1.1f + 0.5f);
+
+			float split2 = 0.01f;
+			float split1 = 1 - split2;
+			float temperature = (temperatures[pp] * 0.15f + 0.7f) * split1 + noise * split2;
+			temperature = 1 - ((1 - temperature) * (1 - temperature));
+
+			if (temperature < 0) temperature = 0;
+			if (temperature > 1) temperature = 1;
+
+			temperatures[pp] = temperature;
+			pp++;
+		}
+	}
+
+	// System.out.println(min+", "+max);
+
+	return temperatures;
+}
+
+//float* BiomeSource::getDownfallBlock( /*float* downfalls__,*/ int x, int z, int w, int h )
+//{
+//	//const int size = w * h;
+//	//if (lenDownfalls < size) {
+//	//	delete[] downfalls;
+//	//	downfalls = new float[size];
+//	//	lenDownfalls = size;
+//	//}
+//
+//	downfalls = downfallMap->getRegion(downfalls, x, z, w, w, downfallScale, downfallScale, 0.5f);
+//	return downfalls;
+//}