70 lines
2.4 KiB
Java
70 lines
2.4 KiB
Java
package net.craftcitizen.imagemaps;
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import de.craftlancer.core.LambdaRunnable;
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import org.bukkit.entity.Player;
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import org.bukkit.map.MapCanvas;
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import org.bukkit.map.MapPalette;
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import org.bukkit.map.MapRenderer;
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import org.bukkit.map.MapView;
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import java.awt.geom.AffineTransform;
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import java.awt.image.AffineTransformOp;
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import java.awt.image.BufferedImage;
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public class ImageMapRenderer extends MapRenderer {
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private ImageMaps plugin;
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private BufferedImage image = null;
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private boolean first = true;
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private final int x;
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private final int y;
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private final double scale;
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public ImageMapRenderer(ImageMaps plugin, BufferedImage image, int x, int y, double scale) {
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this.plugin = plugin;
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this.x = x;
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this.y = y;
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this.scale = scale;
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recalculateInput(image);
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}
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public void recalculateInput(BufferedImage input) {
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if (x * ImageMaps.MAP_WIDTH > Math.round(input.getWidth() * scale)
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|| y * ImageMaps.MAP_HEIGHT > Math.round(input.getHeight() * scale))
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return;
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int x1 = (int) Math.floor(x * ImageMaps.MAP_WIDTH / scale);
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int y1 = (int) Math.floor(y * ImageMaps.MAP_HEIGHT / scale);
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int x2 = (int) Math.ceil(Math.min(input.getWidth(), ((x + 1) * ImageMaps.MAP_WIDTH / scale)));
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int y2 = (int) Math.ceil(Math.min(input.getHeight(), ((y + 1) * ImageMaps.MAP_HEIGHT / scale)));
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if (x2 - x1 <= 0 || y2 - y1 <= 0)
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return;
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this.image = input.getSubimage(x1, y1, x2 - x1, y2 - y1);
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if (scale != 1D) {
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BufferedImage resized = new BufferedImage(ImageMaps.MAP_WIDTH, ImageMaps.MAP_HEIGHT,
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input.getType() == 0 ? image.getType() : input.getType());
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AffineTransform at = new AffineTransform();
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at.scale(scale, scale);
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AffineTransformOp scaleOp = new AffineTransformOp(at, AffineTransformOp.TYPE_BILINEAR);
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this.image = scaleOp.filter(this.image, resized);
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}
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first = true;
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}
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@Override
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public void render(MapView view, MapCanvas canvas, Player player) {
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if (image != null && first) {
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new LambdaRunnable(() -> canvas.drawImage(0, 0, image)).runTaskLater(plugin, System.nanoTime() % 60);
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// spread out pseudo randomly in a very naive way
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first = false;
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}
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}
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}
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