Flatten.java

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package org.pepsoft.worldpainter.operations;

import org.pepsoft.worldpainter.Dimension;
import org.pepsoft.worldpainter.MapDragControl;
import org.pepsoft.worldpainter.RadiusControl;
import org.pepsoft.worldpainter.WorldPainter;

import javax.swing.*;

/**
 *
 * @author pepijn
 */
public class Flatten extends RadiusOperation {
    public Flatten(WorldPainter view, RadiusControl radiusControl, MapDragControl mapDragControl) {
        super("Flatten", "Flatten an area", view, radiusControl, mapDragControl, 100, "operation.flatten");
    }

    @Override
    public JPanel getOptionsPanel() {
        return optionsPanel;
    }

    @Override
    protected void tick(final int centreX, final int centreY, final boolean inverse, final boolean first, final float dynamicLevel) {
        Dimension dimension = getDimension();
        if (first) {
            targetHeight = dimension.getHeightAt(centreX, centreY);
        }
        dimension.setEventsInhibited(true);
        try {
            int radius = getEffectiveRadius();
            boolean applyTheme = options.isApplyTheme();
            for (int x = centreX - radius; x <= centreX + radius; x++) {
                for (int y = centreY - radius; y <= centreY + radius; y++) {
                    float currentHeight = dimension.getHeightAt(x, y);
                    float strength = dynamicLevel * getStrength(centreX, centreY, x, y);
                    if (strength > 0.0f) {
                        float newHeight = strength * targetHeight  + (1f - strength) * currentHeight;
                        dimension.setHeightAt(x, y, newHeight);
                        if (applyTheme) {
                            dimension.applyTheme(x, y);
                        }
                    }
                }
            }
        } finally {
            dimension.setEventsInhibited(false);
        }
    }
    
    private final TerrainShapingOptions<Flatten> options = new TerrainShapingOptions<>();
    private final TerrainShapingOptionsPanel optionsPanel = new TerrainShapingOptionsPanel(options);
    private float targetHeight;
}