我正在尝试创建一个拼图益智游戏,我想知道在不使用面具的情况下创建拼图的替代方法.目前我通过拍摄完整的图像拼图碎片,将图像分成四个部分(假设拼图是2×2),然后存储并对每个部分应用遮罩.它看起来像下面
// create standard puzzle piecesarryPieceEndPos = new int[mCols][mRows];arryPieceImg = new Bitmap[mCols * mRows];arryIsPieceLocked = new boolean[mCols * mRows];int pos = 0;for (int c = 0; c < mCols; c++) {for (int r = 0; r < mRows; r++) {arryPieceImg[pos] = Bitmap.createBitmap(mBitmap,c * mPieceWidth,r * mPieceHeight,mPieceWidth,mPieceHeight);arryIsPieceLocked[pos] = false;arryPieceEndPos[c][r] = pos;pos++;}}
然后我使用辅助方法将遮罩应用于每个部分
private Bitmap maskMethod(Bitmap bmpOriginal,Bitmap bmpMask) {// adjust mask bitmap if size is not the size of the puzzle pieceif (bmpMask.getHeight() != mPieceHeight ||bmpMask.getWidth() != mPieceWidth) {Log.e("TEST","Resize Error :: H (mask): " + bmpMask.getHeight() + " // W (mask): " +bmpMask.getWidth());Log.d("TEST","Resize Error :: H (norm): " + mPieceHeight + " // W (norm): " +mPieceWidth);}Canvas canvas = new Canvas();Bitmap combine = Bitmap.createBitmap(bmpOriginal.getWidth(),bmpOriginal.getHeight(),Bitmap.Config.ARGB_8888);canvas.setBitmap(combine);Paint paint = new Paint();paint.setFilterBitmap(false);canvas.drawBitmap(bmpOriginal,paint);paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));canvas.drawBitmap(bmpMask,paint);paint.setXfermode(null);return combine;}
我看过这篇文章>但是,如果没有掩码,这不会以编程方式生成片段.任何人都可以提供如何实现这一目标的代码示例吗？我唯一的线索是我应该使用Path,但是,我仍然不确定如何.提前致谢！
最佳答案
拼图是一个非常复杂的创建视图,但我可以帮助您了解如何使用路径.以下是开发者网站的链接：http://developer.android.com/reference/android/graphics/Path.html
看看这个链接.我为你开始做了一件小事.你需要弄清楚的一件事是如何从路径中切出一个小圆圈,这是我不知道的.我认为你必须研究剪裁以使你的路径遵循一个圆圈(你也可以做剪辑以创建一个圆形外面的圆圈,我之前没有做过剪裁).
private Bitmap getPuzzleBitmap(Bitmap bitmap){Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),bitmap.getHeight(),Bitmap.Config.ARGB_8888);Canvas canvas = new Canvas(output);final int color = 0xff424242;final Paint paint = new Paint();final Rect rect = new Rect(0,bitmap.getWidth(),bitmap.getHeight());calculatePuzzlePath(bitmap.getWidth(),bitmap.getHeight());paint.setAntiAlias(true);canvas.drawARGB(0,0);paint.setColor(color);canvas.drawPath(puzzlePath,paint);paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));canvas.drawBitmap(bitmap,rect,paint);return output;}private void calculatePuzzlePath(int width,int height){float radius = (height / 2) - 5;float smallRadius = radius / 3;radius -= smallRadius * 2;float centerX = width/2;float centerY = height/2;puzzlePath = new Path();// Bottom rightpuzzlePath.moveTo(centerX + radius,centerY + radius);// Top rightpuzzlePath.lineTo(centerX + radius,centerY - radius);// Center toppuzzlePath.lineTo(centerX,centerY - radius);// Add outside circle to center toppuzzlePath.addCircle(centerX,centerY - radius - ((radius / 3) / 2),radius / 3,Path.Direction.CCW);// Top leftpuzzlePath.lineTo(centerX - radius,centerY - radius);// Bottom leftpuzzlePath.lineTo(centerX - radius,centerY + radius);//Bottom rightpuzzlePath.lineTo(centerX + radius,centerY + radius);}
我希望这足以开始这个.
祝好运！
