70 lines
2.0 KiB
Java
Executable File
70 lines
2.0 KiB
Java
Executable File
package io.github.bi0qaw.biosphere.expression;
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import ch.njol.skript.doc.Description;
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import ch.njol.skript.doc.Examples;
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import ch.njol.skript.doc.Name;
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import ch.njol.skript.lang.Expression;
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import ch.njol.skript.lang.SkriptParser;
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import ch.njol.skript.lang.util.SimpleExpression;
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import ch.njol.util.Kleenean;
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import org.bukkit.event.Event;
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import org.bukkit.util.Vector;
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import io.github.bi0qaw.biosphere.util.VectorLib;
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import org.jetbrains.annotations.Nullable;
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@Name("Vector Rotate XYZ")
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@Description("Rotates vectors around a rotation center and rotation axis by an angle.")
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@Examples({"set {_point} to vector 1, 2, 3",
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"set {_point} to {_point} rotated around y-axis at player with angle 180",
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"#{_point} is now equal to the vector -1, 2, -3"})
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public class ExprVectorRotateXYZ extends SimpleExpression<Vector> {
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private Expression<Vector> vectors;
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private Expression<Number> angle;
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private int axis;
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private static final String[] axisStr = new String[] {"x", "y", "z"};
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@Override
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public Class<? extends Vector> getReturnType() {
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return Vector.class;
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}
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@Override
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public boolean isSingle() {
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return vectors.isSingle();
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}
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@SuppressWarnings("unchecked")
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@Override
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public boolean init(Expression<?>[] expr, int arg1, Kleenean arg2, SkriptParser.ParseResult parseResult) {
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vectors = (Expression<Vector>) expr[0];
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angle = (Expression<Number>) expr[1];
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axis = parseResult.mark;
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return true;
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}
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@Override
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public String toString(@Nullable Event e, boolean arg1) {
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return vectors.toString(e, arg1) + " rotated around " + axisStr[axis] + "-axis with angle " + angle.toString(e, arg1);
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}
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@Override
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@Nullable
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protected Vector[] get(Event e) {
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float a = angle.getSingle(e).floatValue();
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a = -a; //Skript uses clockwise and VectorMath anti-clockwise rotation
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Vector[] clones = VectorLib.clone(vectors.getArray(e));
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if (axis == 1) {
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return VectorLib.rotateX(clones, a);
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}
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else if (axis == 2) {
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return VectorLib.rotateY(clones, a);
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}
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else {
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return VectorLib.rotateZ(clones, a);
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}
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}
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}
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