78 lines
2.1 KiB
Java
78 lines
2.1 KiB
Java
package de.ph87.electro.circuit.part;
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import lombok.Getter;
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import lombok.ToString;
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import java.awt.*;
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import java.awt.event.MouseEvent;
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import static de.ph87.electro.CONFIG.RASTER;
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import static de.ph87.electro.CONFIG.WIRE_HOVER_STROKE_BACK;
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import static java.lang.Math.*;
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@Getter
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@ToString
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public final class Position {
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public static final Position ZERO = new Position(0, 0);
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public final Point absolute;
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public final Point inside;
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public final Point raster;
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public Position(final int x, final int y) {
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this.absolute = new Point(x, y);
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this.raster = new Point(x / RASTER, y / RASTER);
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this.inside = new Point(x % RASTER, y % RASTER);
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}
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@Override
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public int hashCode() {
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return absolute.hashCode();
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}
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public Position(final double x, final double y) {
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this((int) round(x), (int) round(y));
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}
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public Position(final Point point) {
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this(point.x, point.y);
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}
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public Position(final MouseEvent event) {
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this(event.getX(), event.getY());
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}
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public Position plus(final Point vector) {
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return new Position(absolute.x + vector.x, absolute.y + vector.y);
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}
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public double distance(final Position position) {
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return sqrt(pow(position.absolute.x - absolute.x, 2) + pow(position.absolute.y - absolute.y, 2));
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}
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public boolean distanceToLine(final Position lineStart, final Position lineEnd) {
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double dx = lineEnd.absolute.x - lineStart.absolute.x;
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double dy = lineEnd.absolute.y - lineStart.absolute.y;
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double lineLength = dx * dx + dy * dy;
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if (lineLength == 0) {
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return distance(lineStart) <= WIRE_HOVER_STROKE_BACK.getLineWidth();
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}
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double t = ((absolute.x - lineStart.absolute.x) * dx + (absolute.y - lineStart.absolute.y) * dy) / lineLength;
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t = Math.max(0, Math.min(1, t));
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double closestX = lineStart.absolute.x + t * dx;
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double closestY = lineStart.absolute.y + t * dy;
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final double distance = sqrt(pow(closestX - absolute.x, 2) + pow(closestY - absolute.y, 2));
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return distance <= WIRE_HOVER_STROKE_BACK.getLineWidth();
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}
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public Position alignToRaster() {
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return new Position(raster.x * RASTER, raster.y * RASTER);
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}
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}
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