68 lines
2.6 KiB
Java
68 lines
2.6 KiB
Java
/*
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*
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* MIT License
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*
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* Copyright (c) 2020 TerraForged
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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package com.terraforged.mod.biome.modifier;
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import com.terraforged.core.cell.Cell;
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import com.terraforged.core.util.Seed;
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import com.terraforged.core.world.climate.Climate;
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import com.terraforged.core.world.terrain.Terrain;
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import me.dags.noise.Module;
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import me.dags.noise.Source;
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import net.minecraft.world.biome.Biome;
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public abstract class AbstractMaxHeightModifier extends AbstractOffsetModifier {
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private final float minHeight;
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private final float maxHeight;
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private final float range;
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private final Module variance;
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public AbstractMaxHeightModifier(Seed seed, Climate climate, int scale, int octaves, float variance, float minHeight, float maxHeight) {
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super(climate);
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this.minHeight = minHeight;
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this.maxHeight = maxHeight;
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this.range = maxHeight - minHeight;
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this.variance = Source.perlin(seed.next(), scale, octaves).scale(variance);
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}
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@Override
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protected final Biome modify(Biome in, Cell<Terrain> cell, int x, int z, float ox, float oz) {
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float var = variance.getValue(x, z);
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float value = cell.value + var;
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if (value < minHeight) {
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return in;
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}
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if (value > maxHeight) {
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return getModifiedBiome(in, cell, x, z, ox, oz);
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}
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float alpha = (value - minHeight) / range;
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cell.biomeEdge *= alpha;
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return in;
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}
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protected abstract Biome getModifiedBiome(Biome in, Cell<Terrain> cell, int x, int z, float ox, float oz);
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}
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