piecesprite.java

j2me简单实例,j2me教程加源码,希望大家喜欢

            }

            int aniLength = currentAnimation.length;
            // CHECK IF ANIMATION IS OVER
            if (currentFrameNr + 1 == aniLength)
            {
                // IF REPEAT THEN SET FRAME 0
                if (isAnimationRepeat)
                {
                    return setFrame( (short) 0);
                }
                isEndOfAnimation = true;
                return -1;
            }
            return setFrame( (short) (currentFrameNr + 1));
        }
        else
        {
            return playNextFrame();

        }
    }

    /**
     * 播放下一帧,该方法用于播放大量帧数据的动画
     */
    public int playNextFrame()
    {
        // CHECK IF WE CAN SWITCH FOR NEXT FRAME (IS FINISHED FRAME TIME)
        if (startFrameTime + currentFrameTime > System.currentTimeMillis())
        {
            return -1;
        }

        int aniLength = CurrentAnimationFrameLength;
        // CHECK IF ANIMATION IS OVER
        if (currentFrameNr + 1 == aniLength)
        {
            // IF REPEAT THEN SET FRAME 0
            if (isAnimationRepeat)
            {

                try
                {
                    dis.close();
                    //  is.close();
                    is = null;
                    dis = null;
                    is = getClass().getResourceAsStream(m_strBinData);
                    dis = new DataInputStream(is);
                    currentFrameNr = 0;
                    FrameIndex = 0;
                    //读取动画长度
                    short PlayerAnimationsLength = ReadShortFromBCC(dis);
                    CurrentAnimationFrameLength = ReadShortFromBCC(dis);

                }

                catch (IOException ex)
                {
                    ex.printStackTrace();
                }

                return 0; //setFrame((short)0);
            }
            else
            {
                try
                {
                    dis.close();
                }

                catch (IOException ex)
                {
                }
            }
            return -1;
        }
        return playNext();

    }

    int FrameIndex = 0;
    private int playNext()
    {

        int globalOX = ReadShortFromBCC(dis) * m_rate / 100;
        int globalOY = ReadShortFromBCC(dis) * m_rate / 100;
        int time = ReadShortFromBCC(dis);
        int value = ReadShortFromBCC(dis) * m_rate / 100;
        int rx = ReadShortFromBCC(dis) * m_rate / 100;
        int ry = ReadShortFromBCC(dis) * m_rate / 100;
        int rx2 = ReadShortFromBCC(dis) * m_rate / 100;
        int ry2 = ReadShortFromBCC(dis) * m_rate / 100;

        //读取该Frame的包含的零件的长度
        int CurrentFramePieceLength = ReadShortFromBCC(dis);
        short frameData[][] = new short[CurrentFramePieceLength + 1][];

        for (int k = 0; k < CurrentFramePieceLength + 1; k++)
        {
            if (k == 0)
            {
                frameData[k] = new short[8];

                frameData[0][0] = (short) value;
                frameData[0][1] = (short) time;
                frameData[0][2] = (short) globalOX;
                frameData[0][3] = (short) globalOY;
                frameData[0][4] = (short) rx;
                frameData[0][5] = (short) ry;
                frameData[0][6] = (short) (rx2 - rx);
                frameData[0][7] = (short) (ry2 - ry);
            }
            else
            {
                frameData[k] = new short[6];

                int ox = ReadShortFromBCC(dis) * m_rate / 100;
                int oy = ReadShortFromBCC(dis) * m_rate / 100;
                rx = ReadShortFromBCC(dis) * m_rate / 100;
                ry = ReadShortFromBCC(dis) * m_rate / 100;
                rx2 = ReadShortFromBCC(dis) * m_rate / 100;
                ry2 = ReadShortFromBCC(dis) * m_rate / 100;

                frameData[k][0] = (short) rx;
                frameData[k][1] = (short) ry;
                frameData[k][2] = (short) (rx2 - rx);
                frameData[k][3] = (short) (ry2 - ry);
                frameData[k][4] = (short) ox;
                frameData[k][5] = (short) oy;
            }
        }

        currentFrameNr = (short) FrameIndex++;
        currentFrame = frameData;

        currentFrameValue = currentFrame[0][0];
        currentFrameTime = currentFrame[0][1];
        currentFrameGlobalX = currentFrame[0][2];
        currentFrameGlobalY = currentFrame[0][3];
        currentFrameCollisionX = currentFrame[0][4];
        currentFrameCollisionY = currentFrame[0][5];
        currentFrameCollisionW = currentFrame[0][6];
        currentFrameCollisionH = currentFrame[0][7];

        startFrameTime = System.currentTimeMillis();

        return currentFrameValue;

    }

    public void paint(Graphics g, int x, int y, int Way)
    {
        if (currentFrame == null)
        {
            return;
        }
        int sx = x;
        int sy = y;

        // SKIP FIRST ARRAY (THIS IS FRAME SETTINGS DATA)
        for (int i = 1; i < currentFrame.length; i++)
        {

            if (Way == TRANS_NONE)
            {
                // ADD GLOBAL AND FRAME OFFSET X
                x = sx + currentFrameGlobalX + currentFrame[i][4];
                // ADD GLOBAL AND FRAME OFFSET Y
                y = sy + currentFrameGlobalY + currentFrame[i][5];
                //这里得改进bug,如果绘制图片没有的部分将溢出
                g.drawRegion(sprImage, currentFrame[i][0], currentFrame[i][1],
                             currentFrame[i][2], currentFrame[i][3], Way, x, y,
                             Graphics.LEFT | Graphics.TOP);
            }
            if (Way == TRANS_MIRROR)
            {
                // ADD GLOBAL AND FRAME OFFSET X
                x = sx + currentFrameGlobalX - currentFrame[i][4] -
                    currentFrame[i][2];
                // ADD GLOBAL AND FRAME OFFSET Y
                y = sy + currentFrameGlobalY + currentFrame[i][5];
                //using midp2.0 api
                g.drawRegion(sprImage, currentFrame[i][0], currentFrame[i][1],
                             currentFrame[i][2], currentFrame[i][3], Way,
                             x, y, Graphics.LEFT | Graphics.TOP);
            }
        }
    }

    /**
     * drawRegion
     *
     * @param g Graphics
     * @param dg DirectGraphics
     * @param img Image
     * @param x_src int 图上的x作标
     * @param y_src int 图上的y作标
     * @param width int 图 的width
     * @param height int 图 的height
     * @param transform int 变换方式
     * @param x_dest int 绘制坐标x
     * @param y_dest int 绘制坐标Y
     * @param anchor int 锚点
     */
    static void drawRegion(Graphics g, Image img,
                           int x_src,
                           int y_src,
                           int width,
                           int height,
                           int transform,
                           int x_dest,
                           int y_dest,
                           int anchor)
    {
        int x = 0, y = 0;
        int manipulation = 0;
        int imgWidth = img.getWidth();
        int imgHeight = img.getHeight();
        int offsetx, offsety;
        offsetx = 0;
        offsety = 0;

        if ( (anchor & HCENTER) != 0)
        {
            offsetx = - (width >> 1);
        }
        else if ( (anchor & RIGHT) != 0)
        {
            offsetx = -width;
        }
        if ( (anchor & VCENTER) != 0)
        {
            offsety = - (height >> 1);
        }
        else if ( (anchor & BOTTOM) != 0)
        {
            offsety = -height;
        }
        if (transform == TRANS_ROT90 || transform == TRANS_ROT270 ||
            transform == TRANS_MIRROR_ROT90 || transform == TRANS_MIRROR_ROT270)
        {
            g.setClip(x_dest + offsetx, y_dest + offsety, height, width);
            g.clipRect(x_dest + offsetx, y_dest + offsety, height, width);
        }
        else
        {
            g.setClip(x_dest + offsetx, y_dest + offsety, width, height);
            g.clipRect(x_dest + offsetx, y_dest + offsety, width, height);
        }
        switch (transform)
        {
            case TRANS_NONE:
                x = x_dest - x_src;
                y = y_dest - y_src;
                manipulation = 0;
                break;
        }
        g.drawImage(img, x + offsetx, y + offsety, Graphics.LEFT | Graphics.TOP);
        g.setClip(0, 0, g.getClipWidth(), g.getClipHeight());
    }

    public boolean isCollision(int sprite1PosX, int sprite1PosY,
                               PieceSprite sprite2, int sprite2PosX,
                               int sprite2PosY)
    {
        int x1 = sprite1PosX + currentFrameCollisionX + currentFrameGlobalX;
        int y1 = sprite1PosY + currentFrameCollisionY + currentFrameGlobalY;
        int w1 = currentFrameCollisionW;
        int h1 = currentFrameCollisionH;

        int x2 = sprite2PosX + sprite2.currentFrameCollisionX +
            sprite2.currentFrameGlobalX;
        int y2 = sprite2PosY + sprite2.currentFrameCollisionY +
            sprite2.currentFrameGlobalY;
        int w2 = sprite2.currentFrameCollisionW;
        int h2 = sprite2.currentFrameCollisionH;

        return! (x1 + w1 < x2 || x1 > x2 + w2 || y1 + h1 < y2 || y1 > y2 + h2);
    }
    /**
     * 检测当前动画是否播放完成
     */
    public boolean bAnimationOver()
    {
        return isEndOfAnimation;
    }
}