com.badlogic.gdx.ai.tests.steer.scene2d.Scene2dTargetInputProcessor.java Source code

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Here is the source code for com.badlogic.gdx.ai.tests.steer.scene2d.Scene2dTargetInputProcessor.java

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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.ai.tests.steer.scene2d;

import com.badlogic.gdx.InputAdapter;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.scenes.scene2d.utils.Align;

/** An {@link InputProcessor} that allows you to manually move a {@link SteeringActor}.
 * 
 * @autor davebaol */
public class Scene2dTargetInputProcessor extends InputAdapter {
    protected SteeringActor target;

    public Scene2dTargetInputProcessor(SteeringActor target) {
        this.target = target;
    }

    @Override
    public boolean touchDown(int screenX, int screenY, int pointer, int button) {
        setTargetPosition(screenX, screenY);
        return true;
    }

    @Override
    public boolean touchDragged(int screenX, int screenY, int pointer) {
        setTargetPosition(screenX, screenY);
        return true;
    }

    protected void setTargetPosition(int screenX, int screenY) {
        Vector2 pos = target.getPosition();
        target.getStage().screenToStageCoordinates(pos.set(screenX, screenY));
        target.getParent().stageToLocalCoordinates(pos);
        target.setPosition(pos.x, pos.y, Align.center);
    }
}