org.bladecoder.bladeengine.ui.HelpScreen.java Source code

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Here is the source code for org.bladecoder.bladeengine.ui.HelpScreen.java

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/*******************************************************************************
 * Copyright 2014 Rafael Garcia Moreno.
 * 
 * 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.bladecoder.bladeengine.ui;

import java.text.MessageFormat;
import java.util.Locale;

import org.bladecoder.bladeengine.assets.EngineAssetManager;
import org.bladecoder.bladeengine.ui.UI.State;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.Texture.TextureFilter;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.utils.viewport.ScreenViewport;
import com.badlogic.gdx.utils.viewport.Viewport;

public class HelpScreen implements Screen, InputProcessor {

    private final static String PIE_FILENAME = "ui/helpPie";
    private final static String DESKTOP_FILENAME = "ui/helpDesktop";

    private Texture tex;

    private final UI ui;

    private String localeFilename;
    private final Viewport viewport = new ScreenViewport();

    public HelpScreen(UI ui, boolean pieMode) {
        this.ui = ui;

        Locale locale = Locale.getDefault();

        String filename = null;

        if (pieMode)
            filename = PIE_FILENAME;
        else
            filename = DESKTOP_FILENAME;

        localeFilename = MessageFormat.format("{0}_{1}.png", filename, locale.getLanguage());

        if (!EngineAssetManager.getInstance().assetExists(localeFilename))
            localeFilename = MessageFormat.format("{0}.png", filename);
    }

    @Override
    public void render(float delta) {
        SpriteBatch batch = ui.getBatch();

        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        batch.setProjectionMatrix(viewport.getCamera().combined);
        batch.begin();
        batch.draw(tex, 0, 0, viewport.getViewportWidth(), viewport.getViewportHeight());
        ui.getPointer().draw(batch, viewport);
        batch.end();
    }

    @Override
    public void resize(int width, int height) {
        viewport.update(width, height, true);
    }

    @Override
    public void dispose() {
        tex.dispose();
    }

    @Override
    public void show() {
        tex = new Texture(EngineAssetManager.getInstance().getResAsset(localeFilename));
        tex.setFilter(TextureFilter.Linear, TextureFilter.Linear);

        Gdx.input.setInputProcessor(this);
    }

    @Override
    public void hide() {
        dispose();
    }

    @Override
    public void pause() {

    }

    @Override
    public void resume() {

    }

    @Override
    public boolean keyDown(int keycode) {
        return false;
    }

    @Override
    public boolean keyUp(int keycode) {
        switch (keycode) {
        case Input.Keys.ESCAPE:
        case Input.Keys.BACK:
            ui.setScreen(State.SCENE_SCREEN);
            break;
        }

        return true;
    }

    @Override
    public boolean keyTyped(char character) {
        return false;
    }

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

    @Override
    public boolean touchUp(int screenX, int screenY, int pointer, int button) {
        ui.setScreen(State.SCENE_SCREEN);
        return true;
    }

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

    @Override
    public boolean mouseMoved(int screenX, int screenY) {
        return false;
    }

    @Override
    public boolean scrolled(int amount) {
        return false;
    }
}