diff options
Diffstat (limited to 'src/main/java/net/tylermurphy/Minecraft/Gen')
| -rwxr-xr-x | src/main/java/net/tylermurphy/Minecraft/Gen/WorldGenerator.java | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/main/java/net/tylermurphy/Minecraft/Gen/WorldGenerator.java b/src/main/java/net/tylermurphy/Minecraft/Gen/WorldGenerator.java new file mode 100755 index 0000000..b912ccd --- /dev/null +++ b/src/main/java/net/tylermurphy/Minecraft/Gen/WorldGenerator.java @@ -0,0 +1,112 @@ +package net.tylermurphy.Minecraft.Gen;
+
+import net.tylermurphy.Minecraft.Chunk.Chunk;
+import net.tylermurphy.Minecraft.Chunk.PerlinNoise;
+import net.tylermurphy.Minecraft.Scene.World;
+
+public class WorldGenerator {
+
+ private static int OCTAVES = 2;
+ private static int AMPLITUDE = 10;
+ private static int ROUGHNESS = 3;
+
+ public static int generateHeight(int x, int z) {
+ float total = 0;
+ float d = (float) Math.pow(2, OCTAVES-1);
+ for(int i=0;i<OCTAVES;i++){
+ float freq = (float) (Math.pow(2, i) / d);
+ float amp = (float) Math.pow(ROUGHNESS, i) * AMPLITUDE;
+ total += getInterpolatedNoise((x)*freq, (z)*freq) * amp;
+ }
+ return (int) total+100;
+ }
+
+ private static float interpolate(float a, float b, float blend){
+ double theta = blend * Math.PI;
+ float f = (float)(1f - Math.cos(theta)) * 0.5f;
+ return a * (1f - f) + b * f;
+ }
+
+ private static float getInterpolatedNoise(float x, float z){
+ int intX = (int) x;
+ int intZ = (int) z;
+ float fracX = x - intX;
+ float fracZ = z - intZ;
+
+ float v1 = (float) PerlinNoise.getNoise(World.seed, intX, intZ);
+ float v2 = (float) PerlinNoise.getNoise(World.seed, intX + 1, intZ);
+ float v3 = (float) PerlinNoise.getNoise(World.seed, intX, intZ + 1);
+ float v4 = (float) PerlinNoise.getNoise(World.seed, intX + 1, intZ + 1);
+ float i1 = interpolate(v1, v2, fracX);
+ float i2 = interpolate(v3, v4, fracX);
+ return interpolate(i1, i2, fracZ);
+ }
+
+ private static void generateLandscape(Chunk c) {
+ for(int x=0;x<16;x++) {
+ for(int z=0;z<16;z++) {
+ int top = generateHeight(c.gridX*16+x, c.gridZ*16+z);
+ for(int y=0;y<256;y++) {
+ if(top<=95) {
+ if(y < top) c.cubes[x][y][z] = 14;
+ else if(y == top) c.cubes[x][y][z] = 13;
+ else if(y <= 90) c.cubes[x][y][z] = 17;
+ else c.cubes[x][y][z] = -1;
+ } else {
+ if(y < top - 90) c.cubes[x][y][z] = 2;
+ else if(y < top) c.cubes[x][y][z] = 1;
+ else if(y == top) c.cubes[x][y][z] = 0;
+ else c.cubes[x][y][z] = -1;
+ }
+ }
+ }
+ }
+ }
+
+ private static void generateNature(Chunk c) {
+ for(int x=0;x<16;x++) {
+ for(int z=0;z<16;z++) {
+ int top = generateHeight(c.gridX*16+x, c.gridZ*16+z);
+ double n1 = PerlinNoise.getNoise(c.chunk_seed, x*2+z, z/2-x,PerlinNoise.NoiseType.WhiteNoise);
+ double n2 = PerlinNoise.getNoise(c.chunk_seed, z*5-z*2, x/4+6-x*5,PerlinNoise.NoiseType.WhiteNoise);
+ double n3 = PerlinNoise.getNoise(c.chunk_seed, x/5+17, z/14,PerlinNoise.NoiseType.WhiteNoise);
+ double n4 = PerlinNoise.getNoise(c.chunk_seed, z+5, (int)Math.pow(x,2),PerlinNoise.NoiseType.WhiteNoise);
+ if(top<=95) {
+ if(n1*n2/n3*n4>2 && top > 90) {
+ c.cubes[x][top+1][z] = 15;
+ c.cubes[x][top+2][z] = 15;
+ c.cubes[x][top+3][z] = 15;
+ }
+ } else {
+ if(n1*n2/n4*n3>2 && top > 90) {
+ if(x < 1 || x > 14 || z < 1 || z > 14) continue;
+ c.cubes[x][top+1][z] = 10;
+ c.cubes[x][top+2][z] = 10;
+ c.cubes[x][top+3][z] = 10;
+
+ c.cubes[x-1][top+3][z] = 12;
+ c.cubes[x-1][top+3][z+1] = 12;
+ c.cubes[x][top+3][z+1] = 12;
+ c.cubes[x+1][top+3][z+1] = 12;
+ c.cubes[x+1][top+3][z] = 12;
+ c.cubes[x+1][top+3][z-1] = 12;
+ c.cubes[x][top+3][z-1] = 12;
+ c.cubes[x-1][top+3][z-1] = 12;
+
+ c.cubes[x+1][top+4][z] = 12;
+ c.cubes[x-1][top+4][z] = 12;
+ c.cubes[x][top+4][z+1] = 12;
+ c.cubes[x][top+4][z-1] = 12;
+ c.cubes[x][top+4][z] = 12;
+ }
+ }
+ }
+ }
+ }
+
+ public static void generate(Chunk c) {
+ generateLandscape(c);
+ generateNature(c);
+ }
+
+}
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