我目前正在使用一对布尔数组(水平和垂直)创建一个迷宫,以便为迷宫画线。
迷宫一次只显示数组中的 5 个布尔值。然后,我有一个始终居中的用户,当他在迷宫中移动时,会绘制下一组布尔值。这是正常工作的。
我遇到的问题是:当用户移动到迷宫的某个部分时,绘制线条的 for 循环变得高于 bool 数组,因此应用程序崩溃。请在下面找到一些代码片段。
绘制:
protected void onDraw(Canvas canvas) {
canvas.drawRect(0, 0, width, height, background);
int currentX = maze.getCurrentX(),currentY = maze.getCurrentY();
int drawSizeX = 6 + currentX;
int drawSizeY = 6 + currentY;
currentX = currentX - 2;
currentY = currentY - 2;
for(int i = 0; i < drawSizeX - 1; i++) {
for(int j = 0; j < drawSizeY - 1; j++) {
float x = j * totalCellWidth;
float y = i * totalCellHeight;
if(vLines[i + currentY][j + currentX]) {
canvas.drawLine(x + cellWidth, //start X
y, //start Y
x + cellWidth, //stop X
y + cellHeight, //stop Y
line);
}
if(hLines[i + currentY][j + currentX]) {
canvas.drawLine(x, //startX
y + cellHeight, //startY
x + cellWidth, //stopX
y + cellHeight, //stopY
line);
}
}
//draw the user ball
canvas.drawCircle((2 * totalCellWidth)+(cellWidth/2), //x of center
(2 * totalCellHeight)+(cellWidth/2), //y of center
(cellWidth*0.45f), //radius
ball);
}
编辑 1 - 移动 -
public boolean move(int direction) {
boolean moved = false;
if(direction == UP) {
if(currentY != 0 && !horizontalLines[currentY-1][currentX]) {
currentY--;
moved = true;
}
}
if(direction == DOWN) {
if(currentY != sizeY-1 && !horizontalLines[currentY][currentX]) {
currentY++;
moved = true;
}
}
if(direction == RIGHT) {
if(currentX != sizeX-1 && !verticalLines[currentY][currentX]) {
currentX++;
moved = true;
}
}
if(direction == LEFT) {
if(currentX != 0 && !verticalLines[currentY][currentX-1]) {
currentX--;
moved = true;
}
}
if(moved) {
if(currentX == finalX && currentY == finalY) {
gameComplete = true;
}
}
return moved;
}
如果还有什么我需要澄清的,请告诉我。
提前致谢。