TerraForged/TerraForgedCore/src/main/java/com/terraforged/core/world/biome/BiomeType.java

/*
 *
 * MIT License
 *
 * Copyright (c) 2020 TerraForged
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.terraforged.core.world.biome;

import com.terraforged.core.cell.Cell;
import me.dags.noise.util.NoiseUtil;

import java.awt.*;

public enum BiomeType {

    TROPICAL_RAINFOREST(7, 83, 48, new Color(7, 83, 48)),
    SAVANNA(151, 165, 39, new Color(151, 165, 39)),
    DESERT(200, 113, 55, new Color(200, 113, 55)),
    TEMPERATE_RAINFOREST(10, 84, 109, new Color(10, 160, 65)),
    TEMPERATE_FOREST(44, 137, 160, new Color(50, 200, 80)),
    GRASSLAND(179, 124, 6, new Color(100, 220, 60)),
    COLD_STEPPE(131, 112, 71, new Color(175, 180, 150)),
    STEPPE(199, 155, 60, new Color(200, 200, 120)),
    TAIGA(91, 143, 82, new Color(91, 143, 82)),
    TUNDRA(147, 167, 172, new Color(147, 167, 172)),
    ALPINE(0, 0, 0, new Color(160, 120, 170));

    public static final int RESOLUTION = 256;
    public static final int MAX = RESOLUTION - 1;

    private final Color lookup;
    private final Color color;

    BiomeType(int r, int g, int b, Color color) {
        this(new Color(r, g, b), color);
    }

    BiomeType(Color lookup, Color color) {
        this.lookup = lookup;
        this.color = BiomeTypeColors.getInstance().getColor(name(), color);
    }

    Color getLookup() {
        return lookup;
    }

    public Color getColor() {
        return color;
    }

    public boolean isExtreme() {
        return this == TUNDRA || this == DESERT;
    }

    public static BiomeType get(float temperature, float moisture) {
        return getCurve(temperature, moisture);
    }

    public static BiomeType getLinear(float temperature, float moisture) {
        int x = NoiseUtil.round(MAX * temperature);
        int y = getYLinear(x, temperature, moisture);
        return getType(x, y);
    }

    public static BiomeType getCurve(float temperature, float moisture) {
        int x = NoiseUtil.round(MAX * temperature);
        int y = getYCurve(x, temperature, moisture);
        return getType(x, y);
    }

    public static float getEdge(float temperature, float moisture) {
        return getEdgeCurve(temperature, moisture);
    }

    public static float getEdgeLinear(float temperature, float moisture) {
        int x = NoiseUtil.round(MAX * temperature);
        int y = getYLinear(x, temperature, moisture);
        return getEdge(x, y);
    }

    public static float getEdgeCurve(float temperature, float moisture) {
        int x = NoiseUtil.round(MAX * temperature);
        int y = getYCurve(x, temperature, moisture);
        return getEdge(x, y);
    }

    public static void apply(Cell<?> cell) {
        applyCurve(cell);
    }

    public static void applyLinear(Cell<?> cell) {
        cell.biomeType = get(cell.biomeTemperature, cell.biomeMoisture);
        cell.biomeTypeMask = getEdge(cell.temperature, cell.moisture);
    }

    public static void applyCurve(Cell<?> cell) {
        cell.biomeType = get(cell.biomeTemperature, cell.biomeMoisture);
        cell.biomeTypeMask = getEdge(cell.temperature, cell.moisture);
    }

    private static BiomeType getType(int x, int y) {
        return BiomeTypeLoader.getInstance().getTypeMap()[y][x];
    }

    private static float getEdge(int x, int y) {
        return BiomeTypeLoader.getInstance().getEdgeMap()[y][x];
    }

    private static int getYLinear(int x, float temperature, float moisture) {
        if (moisture > temperature) {
            return x;
        }
        return NoiseUtil.round(MAX * moisture);
    }

    private static int getYCurve(int x, float temperature, float moisture) {
        int max = x + ((MAX - x) / 2);
        int y = NoiseUtil.round(max * moisture);
        return Math.min(x, y);
    }
}