123 lines
3.9 KiB
Java
123 lines
3.9 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.core.module;
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import com.terraforged.core.cell.Cell;
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import com.terraforged.core.cell.Populator;
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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.func.Interpolation;
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import me.dags.noise.util.NoiseUtil;
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public class MultiBlender extends Select implements Populator {
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private final Climate climate;
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private final Populator lower;
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private final Populator middle;
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private final Populator upper;
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private final float midpoint;
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private final float blendLower;
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private final float blendUpper;
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private final float lowerRange;
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private final float upperRange;
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public MultiBlender(Climate climate, Populator control, Populator lower, Populator middle, Populator upper, float min, float mid, float max) {
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super(control);
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this.climate = climate;
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this.lower = lower;
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this.upper = upper;
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this.middle = middle;
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this.midpoint = mid;
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this.blendLower = min;
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this.blendUpper = max;
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this.lowerRange = midpoint - blendLower;
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this.upperRange = blendUpper - midpoint;
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}
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@Override
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public void apply(Cell<Terrain> cell, float x, float y) {
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float select = getSelect(cell, x, y);
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if (select < blendLower) {
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lower.apply(cell, x, y);
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return;
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}
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if (select > blendUpper) {
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upper.apply(cell, x, y);
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return;
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}
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if (select < midpoint) {
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float alpha = Interpolation.CURVE3.apply((select - blendLower) / lowerRange);
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lower.apply(cell, x, y);
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float lowerVal = cell.value;
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Terrain lowerType = cell.tag;
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middle.apply(cell, x, y);
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float upperVal = cell.value;
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cell.value = NoiseUtil.lerp(lowerVal, upperVal, alpha);
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} else {
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float alpha = Interpolation.CURVE3.apply((select - midpoint) / upperRange);
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middle.apply(cell, x, y);
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float lowerVal = cell.value;
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upper.apply(cell, x, y);
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cell.value = NoiseUtil.lerp(lowerVal, cell.value, alpha);
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}
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}
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@Override
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public void tag(Cell<Terrain> cell, float x, float y) {
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float select = getSelect(cell, x, y);
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if (select < blendLower) {
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lower.tag(cell, x, y);
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return;
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}
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if (select > blendUpper) {
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upper.tag(cell, x, y);
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return;
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}
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if (select < midpoint) {
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lower.tag(cell, x, y);
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// upper.tag(cell, x, y);
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if (cell.value > cell.tag.getMax(climate.getRand().getValue(x, y))) {
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upper.tag(cell, x, y);
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}
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} else {
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upper.tag(cell, x, y);
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}
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}
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}
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