| import javax.microedition.lcdui.Canvas; |
| import javax.microedition.lcdui.Display; |
| import javax.microedition.lcdui.Graphics; |
| import javax.microedition.lcdui.Image; |
| import javax.microedition.midlet.MIDlet; |
| |
| public class TemplateMIDlet extends MIDlet implements Runnable { |
| |
| int FIELD_WIDTH = 12; |
| int FIELD_HEIGHT = 22; |
| |
| int[][][] pattern = { |
| { |
| {0, 1, 0}, |
| {0, 1, 0}, |
| {0, 1, 0} |
| }, { |
| {0, 1, 0}, |
| {0, 1, 1}, |
| {0, 0, 0} |
| } |
| }; |
| |
| int mode = 0; // ゲーム内の状態を表すモード（0:落下開始、1:落下中、2:着地） |
| Thread thread; |
| StringBuffer keyBuffer = new StringBuffer(); |
| int[][] field = new int[FIELD_HEIGHT][FIELD_WIDTH]; |
| int[][] next = new int[pattern[0].length][pattern[0].length]; |
| |
| Image offi; |
| Canvas canvas; |
| |
| int COLOR_GRAY = 0xC0C0C0; |
| int COLOR_BLUE = 0x0000FF; |
| int COLOR_RED = 0xFF0000; |
| int COLOR_BLACK = 0x000000; |
| |
| public TemplateMIDlet() { |
| canvas = new Canvas() { |
| public void paint(Graphics g) { |
| g.drawImage(offi, 0, 0, Graphics.TOP | Graphics.LEFT); |
| } |
| |
| protected void keyPressed(int keyCode) { |
| // 落下中でかつ先行入力が２つ未満の場合のみキー入力を受け付ける |
| if (mode == 1 && keyBuffer.length() < 2) { |
| int ga = getGameAction(keyCode); |
| if (ga == Canvas.DOWN) { |
| keyBuffer.append('D'); |
| } else if (ga == Canvas.LEFT) { |
| keyBuffer.append('L'); |
| } else if (ga == Canvas.RIGHT) { |
| keyBuffer.append('R'); |
| } else { |
| keyBuffer.append('A'); |
| } |
| } |
| } |
| |
| protected void keyRepeated(int keyCode) { |
| // キーを押しっぱなしの場合の動作はキーが押された場合と同じ |
| keyPressed(keyCode); |
| } |
| }; |
| offi = Image.createImage(canvas.getWidth(), canvas.getHeight()); |
| Display.getDisplay(this).setCurrent(canvas); |
| } |
| |
| protected void startApp() { |
| if (thread == null) { |
| thread = new Thread(this); |
| thread.start(); |
| } |
| } |
| |
| protected void pauseApp() { |
| // このイベントは利用しないので実装する必要はない |
| } |
| |
| protected void destroyApp(boolean unconditional) { |
| // このイベントは利用しないので実装する必要はない |
| } |
| |
| public void run() { |
| int x = 0; |
| int y = 0; |
| int count = 0; |
| int prevKey = '0'; |
| Graphics g = offi.getGraphics(); |
| initField(); |
| int[][] current = new int[pattern[0].length][pattern[0].length]; |
| copy(pattern[0], next); |
| while (true) { |
| if (mode == 0) { |
| if (keyBuffer.length() > 0) { |
| keyBuffer.delete(0, keyBuffer.length() - 1); |
| } |
| copy(next, current); |
| copy(pattern[0], next); |
| x = FIELD_WIDTH / 2 - (int)Math.sqrt(pattern[0].length); |
| y = 0; |
| mode = 1; |
| count = 0; |
| } else if (mode == 1) { |
| boolean fix = false; |
| if (count != 0) { |
| char key = 'N'; // 'N' は何も押していないことを表す |
| if (count % 20 == 0) { |
| if (!(keyBuffer.length() > 0 && keyBuffer.charAt(0) == 'D')) { |
| keyBuffer.insert(0, 'D'); |
| } |
| } |
| if (keyBuffer.length() > 0) { |
| key = keyBuffer.charAt(0); |
| keyBuffer.deleteCharAt(0); |
| if (key == 'L') { |
| x--; |
| } else if (key == 'R') { |
| x++; |
| } else if (key == 'D') { |
| y++; |
| } else if (key == 'A') { |
| rotate(current); |
| } |
| if (isHit(x, y, current)) { |
| if (key == 'L') { |
| x++; |
| } else if (key == 'R') { |
| x--; |
| } else if (key == 'A') { |
| if (prevKey == 'L') { |
| if (!isHit(x + 1, y, current)) { |
| x++; |
| } else { |
| rotate(current); |
| rotate(current); |
| rotate(current); |
| } |
| } else if (prevKey == 'R') { |
| if (!isHit(x - 1, y, current)) { |
| x--; |
| } else { |
| rotate(current); |
| rotate(current); |
| rotate(current); |
| } |
| } |
| } else if (key == 'D') { |
| y--; |
| fix = true; |
| } |
| } |
| if (key == 'L' || key == 'R') { |
| prevKey = key; |
| } |
| } |
| } |
| |
| for (int i = 0; i < FIELD_HEIGHT; i++) { |
| for (int j = 0; j < FIELD_WIDTH; j++) { |
| if (field[i][j] == 1) { |
| field[i][j] = 0; |
| } |
| } |
| } |
| |
| for (int i = 0; i < current.length; i++) { |
| for (int j = 0; j < current[i].length; j++) { |
| if (current[i][j] == 1) { |
| field[y + i][x + j] = 1; |
| if (fix) { |
| field[y + i][x + j] = 2; |
| } |
| } |
| } |
| } |
| |
| // メインフィールドを描画 |
| drawBlocks(g); |
| |
| if (fix) { |
| mode = 2; |
| } |
| if (count == 0) { |
| sleep(150); |
| } else { |
| sleep(50); |
| } |
| count++; |
| } else if (mode == 2) { |
| mode = 0; |
| } |
| canvas.repaint(); |
| canvas.serviceRepaints(); |
| } |
| } |
| |
| void copy(int[][] src, int[][] dest) { |
| for (int i = 0; i < src.length; i++) { |
| System.arraycopy(src[i], 0, dest[i], 0, src[i].length); |
| } |
| } |
| |
| void rotate(int[][] omino) { |
| int[][] temp = new int[omino[0].length][omino[0].length]; |
| temp[0][2] = omino[0][0]; |
| temp[1][2] = omino[0][1]; |
| temp[2][2] = omino[0][2]; |
| temp[0][1] = omino[1][0]; |
| temp[1][1] = omino[1][1]; |
| temp[2][1] = omino[1][2]; |
| temp[0][0] = omino[2][0]; |
| temp[1][0] = omino[2][1]; |
| temp[2][0] = omino[2][2]; |
| for (int i = 0; i < omino.length; i++) { |
| System.arraycopy(temp[i], 0, omino[i], 0, temp[i].length); |
| } |
| } |
| |
| boolean isHit(int x, int y, int[][] omino) { |
| for (int i = 0; i < omino.length; i++) { |
| for (int j = 0; j < omino[i].length; j++) { |
| if (omino[i][j] == 1) { |
| if (field[y + i][x + j] == -1 || field[y + i][x + j] == 2) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| void initField() { |
| for (int i = 0; i < FIELD_HEIGHT; i++) { |
| for (int j = 0; j < FIELD_WIDTH; j++) { |
| if (j == 0 || j == FIELD_WIDTH - 1) { |
| field[i][j] = -1; |
| } else if (i == FIELD_HEIGHT - 1) { |
| field[i][j] = -1; |
| } else { |
| field[i][j] = 0; |
| } |
| } |
| } |
| for (int i = 1; i < FIELD_WIDTH - 1; i++) { |
| field[FIELD_HEIGHT - 1][i] = -1; |
| } |
| for (int i = 0; i < FIELD_HEIGHT; i++) { |
| field[i][0] = -1; |
| field[i][FIELD_WIDTH - 1] = -1; |
| } |
| } |
| |
| void drawBlocks(Graphics g) { |
| int blockSize = canvas.getHeight() / (FIELD_HEIGHT + 2); |
| for (int i = 0; i < FIELD_HEIGHT; i++) { |
| for (int j = 0; j < FIELD_WIDTH; j++) { |
| if (field[i][j] == -1) { |
| g.setColor(COLOR_GRAY); |
| g.fillRect(j * blockSize, i * blockSize, blockSize, blockSize); |
| } else if (field[i][j] == 1) { |
| g.setColor(COLOR_RED); |
| g.fillRect(j * blockSize, i * blockSize, blockSize, blockSize); |
| } else if (field[i][j] == 2) { |
| g.setColor(COLOR_BLUE); |
| g.fillRect(j * blockSize, i * blockSize, blockSize, blockSize); |
| } else { |
| g.setColor(COLOR_BLACK); |
| g.fillRect(j * blockSize, i * blockSize, blockSize, blockSize); |
| } |
| } |
| } |
| } |
| |
| void sleep(long millis) { |
| try { |
| Thread.sleep(millis); |
| } catch (InterruptedException e) { |
| // 例外は発生しない |
| } |
| } |
| |
| } |