tv.dyndns.kishibe.qmaclone.client.game.sentence.WidgetProblemSentenceEffect.java Source code

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Here is the source code for tv.dyndns.kishibe.qmaclone.client.game.sentence.WidgetProblemSentenceEffect.java

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//The MIT License
//
//Copyright (c) 2009 nodchip
//
//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:
//
//The above copyright notice and this permission notice shall be included in
//all copies or substantial portions of the Software.
//
//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.
package tv.dyndns.kishibe.qmaclone.client.game.sentence;

import tv.dyndns.kishibe.qmaclone.client.packet.PacketProblem;
import tv.dyndns.kishibe.qmaclone.client.util.Rand;

import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Objects;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.RepeatingCommand;
import com.google.gwt.dom.client.Style.Position;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.safecss.shared.SafeStyles;
import com.google.gwt.safecss.shared.SafeStylesBuilder;
import com.google.gwt.safehtml.client.SafeHtmlTemplates;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.HTML;

public class WidgetProblemSentenceEffect extends WidgetProblemSentenceNormal {
    public interface HintTemplate extends SafeHtmlTemplates {
        @Template("<p style='position:relative;'>"
                + "<span style='width:600px;height:64px;font-size:56px;text-align:center;vertical-align:middle;'>{0}</span>")
        SafeHtml prefix(String hint);

        @Template("<span style='{0}'></span>")
        SafeHtml line(SafeStyles styles);
    }

    private static final HintTemplate HINT_TEMPLATE = GWT.create(HintTemplate.class);
    private static final SafeHtml SURFIX_TEMPLATE = SafeHtmlUtils.fromSafeConstant("</p>");
    private static final int WIDTH = 600;
    private static final int NUMBER_OF_LINE = 10;
    private static final int INITIALI_WIDTH = 100;
    private static final int UPDATE_PERIOD_MS = 200;
    private static final int SHOW_ALL_TIMING_MS = 25 * 1000;

    @VisibleForTesting
    final HTML html = new HTML();
    private final SafeHtml prefix;
    private final int velocities[] = new int[NUMBER_OF_LINE];
    private final int pos[] = new int[NUMBER_OF_LINE];
    private int count = 0;
    private static final String[] COLORS = { "FFFFFF", "F8F8F8", "F0F0F0", "E8E8E8", "E0E0E0", "D8D8D8", "D0D0D0",
            "C8C8C8", "C0C0C0", "B8B8B8", };
    private final RepeatingCommand commandUpdate = new RepeatingCommand() {
        @Override
        public boolean execute() {
            update();
            return isAttached();
        }
    };

    public WidgetProblemSentenceEffect(PacketProblem problem) {
        super(problem);
        setWidth("600px");

        String hint = problem.choices[0];
        prefix = HINT_TEMPLATE.prefix(hint);

        html.setPixelSize(600, 80);

        add(html);
        setCellHorizontalAlignment(html, ALIGN_CENTER);
        setCellVerticalAlignment(html, ALIGN_MIDDLE);
        setCellWidth(html, "600px");
        setCellHeight(html, "64px");

        Rand rand = new Rand(Objects.hashCode(problem.id, problem.shuffledChoices, problem.shuffledAnswers));
        for (int i = 0; i < NUMBER_OF_LINE; ++i) {
            velocities[i] = rand.get(10) + 6;
            if (rand.get(2) == 0) {
                velocities[i] *= -1;
            }
            pos[i] = rand.get(WIDTH - INITIALI_WIDTH);
        }

        update();
    }

    @VisibleForTesting
    void update() {
        // SHOW_ALL_TIMING_MS??????
        int showAllCount = SHOW_ALL_TIMING_MS / UPDATE_PERIOD_MS;
        if (++count > showAllCount) {
            html.setHTML(new SafeHtmlBuilder().append(prefix).append(SURFIX_TEMPLATE).toSafeHtml());
            return;
        }

        // ????
        int lineWidth = INITIALI_WIDTH * (showAllCount - count) / showAllCount;
        for (int i = 0; i < NUMBER_OF_LINE; ++i) {
            pos[i] += velocities[i];
            if (pos[i] < 0) {
                velocities[i] = Math.abs(velocities[i]);
            } else if (pos[i] > WIDTH - lineWidth) {
                velocities[i] = -Math.abs(velocities[i]);
            }
        }

        // ??
        SafeHtmlBuilder builder = new SafeHtmlBuilder();
        builder.append(prefix);

        for (int i = 0; i < NUMBER_OF_LINE; ++i) {
            SafeStyles styles = new SafeStylesBuilder().position(Position.ABSOLUTE).left(pos[i], Unit.PX)
                    .top(0, Unit.PX).trustedBackgroundColor(COLORS[i]).width(lineWidth, Unit.PX).height(72, Unit.PX)
                    .toSafeStyles();
            builder.append(HINT_TEMPLATE.line(styles));
        }
        builder.append(SURFIX_TEMPLATE);

        html.setHTML(builder.toSafeHtml());
    }

    @Override
    protected void onLoad() {
        super.onLoad();
        Scheduler.get().scheduleFixedPeriod(commandUpdate, UPDATE_PERIOD_MS);
    }
}