J2ME游戏开发中的地图设计与绘制

public static byte[][] B_MAZE_2D_ARRAY = {
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0}
, {
0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0}
, {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0}
, {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0}
, {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}

};

int kI = 0;//表示
int kJ = 0;
//nEleStartedX， nEleStartedY表示从2D Array哪个位置开始绘制地图
for (int i = nEleStartedY; i < B_MAZE_2D_ARRAY.length; i++) {
kJ = 0;
//是否需要绘制
boolean isDrawed = false;
for (int j = nEleStartedX; j < B_MAZE_2D_ARRAY[i].length; j++) {
//绘制需要的面积，N_MAZE_ELEMENT_WIDTH，N_MAZE_ELEMENT_HEIGHT表示图块宽高
int bX = nMapStartedX + j * N_MAZE_ELEMENT_WIDTH;
int bY = nMapStartedY + i * N_MAZE_ELEMENT_HEIGHT;
//SCREEN_WIDTH,SCREEN_HEIGHT屏幕大小
if (bX <= SCREEN_WIDTH
&&
bY <= SCREEN_HEIGHT
&&
bX >= -N_MAZE_ELEMENT_WIDTH
&&
bY >= -N_MAZE_ELEMENT_HEIGHT
) {
g.drawImage(mapImages[B_MAZE_2D_ARRAY[i][j]], bX,
bY,
Graphics.TOP | Graphics.LEFT);//绘制图块
isDrawed = true;
kJ++;
// N_MAX_MAZE_ITEM_X, N_MAX_MAZE_ITEM_Y屏幕面积内图块的最大值
if (kJ > N_MAX_MAZE_ITEM_X + 2) {
break;
}

}
}
if (isDrawed) {
kI++;
}
if (kI > N_MAX_MAZE_ITEM_Y + 2) {
break;
}
}

// 需要绘制的２DArray左上角位置,nMapStartedX,nMapStartedY在地图绝对面积上的坐标
int nArrayI = ( -N_MAZE_ELEMENT_HEIGHT - nMapStartedY) /
N_MAZE_ELEMENT_HEIGHT;
int nArrayJ = ( -N_MAZE_ELEMENT_WIDTH - nMapStartedX) /
N_MAZE_ELEMENT_WIDTH;
for (int i = nArrayI;
i < SCREEN_HEIGHT / N_MAZE_ELEMENT_HEIGHT + 2; i++) {
for (int j = nArrayJ;
j < SCREEN_WIDTH / N_MAZE_ELEMENT_WIDTH + 2; j++) {

if (i < 0 || j < 0 || i > B_MAZE_2D_ARRAY.length ||
j > B_MAZE_2D_ARRAY[0].length) {
continue;
}
else {
int bX = nMapStartedX + j * N_MAZE_ELEMENT_WIDTH;
int bY = nMapStartedY + i * N_MAZE_ELEMENT_HEIGHT;
g.drawImage(mapImages[B_MAZE_2D_ARRAY[i][j]], bX,
bY,
Graphics.TOP | Graphics.LEFT);
}
　}
}