/*
* Copyright 2014 MovingBlocks
*
* 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 org.terasology.rendering.nui.layers.hud;
import com.google.common.collect.Lists;
import org.terasology.math.TeraMath;
import org.terasology.math.geom.Vector2i;
import org.terasology.rendering.assets.texture.TextureRegion;
import org.terasology.rendering.nui.Canvas;
import org.terasology.rendering.nui.CoreWidget;
import org.terasology.rendering.nui.LayoutConfig;
import org.terasology.rendering.nui.databinding.Binding;
import org.terasology.rendering.nui.databinding.DefaultBinding;
import java.util.List;
/**
*/
public class UICrosshair extends CoreWidget {
@LayoutConfig
private List<TextureRegion> chargeStages = Lists.newArrayList();
private Binding<Float> chargeAmount = new DefaultBinding<>(0f);
@Override
public void onDraw(Canvas canvas) {
if (getChargeAmount() > 0 && !chargeStages.isEmpty()) {
int state = TeraMath.floorToInt(getChargeAmount() * (chargeStages.size() - 1));
canvas.drawTexture(chargeStages.get(state));
}
}
@Override
public Vector2i getPreferredContentSize(Canvas canvas, Vector2i sizeHint) {
return Vector2i.zero();
}
public void bindChargeAmount(Binding<Float> binding) {
chargeAmount = binding;
}
public float getChargeAmount() {
return Math.min(1.0f, chargeAmount.get());
}
public void setChargeAmount(float val) {
chargeAmount.set(val);
}
}