src/com/replica/replicaisland/DoorAnimationComponent.java

/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * 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.replica.replicaisland;

import com.replica.replicaisland.SoundSystem.Sound;

public class DoorAnimationComponent extends GameComponent {
    
    public static final class Animation {
        // Animations
        public static final int CLOSED = 0;
        public static final int OPEN = 1;
        public static final int CLOSING = 2;
        public static final int OPENING = 3;
    }
    
    // State
    protected static final int STATE_CLOSED = 0;
    protected static final int STATE_OPEN = 1;
    protected static final int STATE_CLOSING = 2;
    protected static final int STATE_OPENING = 3;
    
    protected final static float DEFAULT_STAY_OPEN_TIME = 5.0f;
    
    private SpriteComponent mSprite;
    private int mState;
    private ChannelSystem.Channel mChannel;
    private SolidSurfaceComponent mSolidSurface;
    private float mStayOpenTime;
    private Sound mCloseSound;
    private Sound mOpenSound;
    
    public DoorAnimationComponent() {
        super();
        setPhase(ComponentPhases.ANIMATION.ordinal());
        reset();
    }
    
    @Override
    public void reset() {
        mSprite = null;
        mState = STATE_CLOSED;
        mChannel = null;
        mSolidSurface = null;
        mStayOpenTime = DEFAULT_STAY_OPEN_TIME;
        mCloseSound = null;
        mOpenSound = null;
    }
    
    private void open(float timeSinceTriggered, GameObject parentObject) {
        if (mSprite != null) {
            final float openAnimationLength = mSprite.findAnimation(Animation.OPENING).getLength();
            
            
            
            if (timeSinceTriggered > openAnimationLength) {
                // snap open.
                mSprite.playAnimation(Animation.OPEN);
                mState = STATE_OPEN;
                if (mSolidSurface != null) {
                    parentObject.remove(mSolidSurface);
                }
            } else {
                float timeOffset = timeSinceTriggered;
                if (mState == STATE_CLOSING) {
                    // opening and closing animations are the same length.
                    // if we're in the middle of one and need to go to the other,
                    // we can start the new one mid-way through so that the door appears to
                    // simply reverse direction.
                    timeOffset = openAnimationLength - mSprite.getCurrentAnimationTime();
                } else {
                	if (mSolidSurface != null) {
                        parentObject.remove(mSolidSurface);
                    }
                }
          
                mState = STATE_OPENING;
                mSprite.playAnimation(Animation.OPENING);
                mSprite.setCurrentAnimationTime(timeOffset);
                
                if (mOpenSound != null) {
                	SoundSystem sound = sSystemRegistry.soundSystem;
                	if (sound != null) {
                		sound.play(mOpenSound, false, SoundSystem.PRIORITY_NORMAL);
                	}
                }
            }
        }
    }
    
    private void close(float timeSinceTriggered, GameObject parentObject) {
        if (mSprite != null) {
            final float closeAnimationLength = mSprite.findAnimation(Animation.CLOSING).getLength();
            
            if (timeSinceTriggered > mStayOpenTime + closeAnimationLength) {
                // snap open.
                mSprite.playAnimation(Animation.CLOSED);
                mState = STATE_CLOSED;
                if (mSolidSurface != null) {
                    parentObject.add(mSolidSurface);
                }
            } else {
                float timeOffset = timeSinceTriggered - mStayOpenTime;
                if (mState == STATE_OPENING) {
                    timeOffset = closeAnimationLength - mSprite.getCurrentAnimationTime();
                }
          
                mState = STATE_CLOSING;
                mSprite.playAnimation(Animation.CLOSING);
                mSprite.setCurrentAnimationTime(timeOffset);
                if (mCloseSound != null) {
                	SoundSystem sound = sSystemRegistry.soundSystem;
                	if (sound != null) {
                		sound.play(mCloseSound, false, SoundSystem.PRIORITY_NORMAL);
                	}
                }
            }
        }
    }
    
    
    @Override
    public void update(float timeDelta, BaseObject parent) {
        if (mChannel != null) {
            if (mChannel.value != null && mChannel.value instanceof ChannelSystem.ChannelFloatValue) {
                final float lastPressedTime = ((ChannelSystem.ChannelFloatValue)mChannel.value).value;
                TimeSystem time = sSystemRegistry.timeSystem;
                final float gameTime = time.getGameTime();
                final float delta = gameTime - lastPressedTime;
                if (delta < mStayOpenTime 
                        && (mState == STATE_CLOSED || mState == STATE_CLOSING)) {
                    open(delta, (GameObject)parent);
                    
                } else if (delta > mStayOpenTime
                        && (mState == STATE_OPEN || mState == STATE_OPENING)) {
                    close(delta, (GameObject)parent);
                }
            }
        }
        if (mSprite != null) {
           
            
            if (mState == STATE_OPENING && mSprite.animationFinished()) {
                mSprite.playAnimation(Animation.OPEN);
                mState = STATE_OPEN;
            } else if (mState == STATE_CLOSING && mSprite.animationFinished()) {
                mSprite.playAnimation(Animation.CLOSED);
                mState = STATE_CLOSED;
                if (mSolidSurface != null) {
                    ((GameObject)parent).add(mSolidSurface);
                }
            }
            
            // Deal with the case where the animation and state are out of sync
            // (side-effect of possession).
            // TODO: figure out a better way to do this.
            if (mSprite.getCurrentAnimation() == Animation.OPENING && mState == STATE_CLOSED) {
                mSprite.playAnimation(Animation.CLOSING);
                mState = STATE_CLOSING;
            }
            
        }
    }
    
    public void setSprite(SpriteComponent sprite) {
        mSprite = sprite;
    }
    
    public void setChannel(ChannelSystem.Channel channel) {
        mChannel = channel;
    }
    
    public void setSolidSurface(SolidSurfaceComponent surface) {
        mSolidSurface = surface;
    }
    
    public void setStayOpenTime(float time) {
        mStayOpenTime = time;
    }
    
    public void setSounds(Sound openSound, Sound closeSound) {
    	mOpenSound = openSound;
    	mCloseSound = closeSound;
    }
}