Android Open Source - block-composer Game Dialog Mode

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License

The source code is released under:
MIT License
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Java Source Code

package bwr.blockcomposer.modes;
//w  w  w. j  a va  2  s. c o m
import javax.microedition.khronos.opengles.GL10;

import bwr.blockcomposer.AnimationFinishedListener;
import bwr.blockcomposer.R;
import bwr.blockcomposer.types.FloatValue;
import bwr.blockcomposer.ui.UIElementText;

import android.view.MotionEvent;

public class GameDialogMode extends OverlayMode {

  public static interface OnResult {
    public void onResult();
  }
  
  private static final int ANIMATION_TIME = 200;
  private static final int OKAY_BUTTON = 1;
  
  private UIElementText okayButton;
  private UIElementText message;
  
  private FloatValue gameDialogY = new FloatValue();
  private FloatValue okayButtonAlpha = new FloatValue();
  
  private boolean finishedInitialAnimation = false;
  
  private final String text;
  private final OnResult resultHandler;
  
  public GameDialogMode(Mode mode, String text, OnResult resultHandler) {
    super(mode);
    this.text = text;
    this.resultHandler = resultHandler;
  }

  @Override
  public void onModeCreate(GL10 gl, int displayWidth, int displayHeight) {
    super.onModeCreate(gl, displayWidth, displayHeight);

    final int paddingX = (int) context.getResources().getDimension(R.dimen.buttonPaddingX);
    final int paddingY = (int) context.getResources().getDimension(R.dimen.buttonPaddingY);
    
    final int okayButtonWidth = 100;
    final int okayButtonHeight = 64;
    final int okayButtonX = displayWidth - okayButtonWidth - paddingX;
    final int okayButtonY = okayButtonHeight + paddingY;
        
    okayButton = new UIElementText(gameResources, context, gl, OKAY_BUTTON, "Okay", okayButtonX, okayButtonY, okayButtonWidth, okayButtonHeight, BUTTON_TEXT_SIZE);
    uiElements.add(okayButton);
    
    final int messageWidth = displayWidth * 2/3;
    final int messageRequiredHeight = UIElementText.calculateRequiredHeight(text, messageWidth, DIALOG_TEXT_SIZE);
    final int messageHeight = Math.max(messageRequiredHeight, displayHeight/3);
    final int messageX = (displayWidth - messageWidth)/2;
    final int messageY = displayHeight - paddingY;
    
    message = new UIElementText(gameResources, context, gl, 0, text, messageX, messageY, messageWidth, messageHeight, DIALOG_TEXT_SIZE);
  
    gameDialogY.setValue(messageHeight);
    gameDialogY.initLinearAnimation(-messageHeight, ANIMATION_TIME);
    
    okayButtonAlpha.setValue(0.0f);
    okayButtonAlpha.initLinearAnimation(1, ANIMATION_TIME, new AnimationFinishedListener() {
      public void onAnimationFinished() {
        finishedInitialAnimation = true;
      }
    });
  }

  @Override
  public void update(long dt) {
    super.update(dt);
    gameDialogY.update(dt);
    okayButtonAlpha.update(dt);
  }

  @Override
  public void render2D(GL10 gl) {
        gl.glDisableClientState(GL10.GL_NORMAL_ARRAY);
        gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
    
        gl.glColor4f(1f, 1f, 1f, okayButtonAlpha.getValue());
        okayButton.render(gl);

        gl.glColor4f(1f, 1f, 1f, 1f);
        
    gl.glPushMatrix();
    gl.glTranslatef(0, gameDialogY.getValue(), 0);
    message.render(gl);
    gl.glPopMatrix();
    
    gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);

  }

  @Override
  protected boolean handleUIEvent(int id, int action) {
    if(action == MotionEvent.ACTION_DOWN && id == OKAY_BUTTON && finishedInitialAnimation) {
      gameDialogY.initLinearAnimation(150, ANIMATION_TIME);
      
      okayButtonAlpha.initLinearAnimation(-1f, ANIMATION_TIME, new AnimationFinishedListener() {
        public void onAnimationFinished() {
          finishedInitialAnimation = false;
          modeController.popMode();
        }
      });
      return true;
    }
    return false;
  }

  @Override
  public void onModePop() {
    if(resultHandler != null) {
      resultHandler.onResult();
    }
  }
  
}
Java Source Code List
