@Override
public void paint(Graphics g) {
// Create an accelerated image to use for double buffering to make
// screen updates smooth
GraphicsConfiguration gc =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice()
.getDefaultConfiguration();
Image image = gc.createCompatibleImage(getWidth(), getWidth(), Transparency.BITMASK);
Graphics2D g2d = (Graphics2D) image.getGraphics();
// Call clear with g2d local variable to clear the current contents of window
clear(g2d);
// Draw bonus saucer
bonusSaucer.draw(g2d);
if (bonusSaucer.killed && resetBonusTime == 0) {
bonusSaucerKillTimer.reset();
bonusSaucerInitialMoveTimer =
new Timer((long) (randomBonusSaucerTime.nextInt(10) + 6) * 1000);
oldBonusSaucerXPosition = bonusSaucer.xPosition;
oldBonusSaucerYPosition = bonusSaucer.yPosition;
resetBonusTime = resetBonusTime + 1;
}
if (!bonusSaucerKillTimer.expired() && resetBonusTime == 1) {
bonusScore = bonusSaucer.determineBonusScore();
bonusSaucer =
new BonusSaucer(INITIAL_SAUCER_X_BLOCK_POSITION, INITIAL_SAUCER_Y_BLOCK_POSITION, this);
bonusScoreDisplay.set((long) 1000);
resetBonusTime = resetBonusTime - 1;
}
if (!bonusScoreDisplay.expired()) {
g2d.setFont(scoreFont);
g2d.setColor(Color.white);
g2d.drawString(
String.valueOf(bonusScore), oldBonusSaucerXPosition, oldBonusSaucerYPosition + 20);
}
if (tank.killed) {
bonusSaucer =
new BonusSaucer(INITIAL_SAUCER_X_BLOCK_POSITION, INITIAL_SAUCER_Y_BLOCK_POSITION, this);
}
// Draw aliens
// Define a local variable called row of type Integer and initailize it
// to 0, this is used to access the aliens by row
Integer row = 0;
Integer yBlockPosition = INITIAL_ALIEN_Y_BLOCK_POSITION;
// Loop while row is not eual to the NBR_OF_ALIEN_ROWS
while (row != aliens.length) { // Number of rows
// Define a local variable called column of type Integer and
// initailize it to 0, this is used to access the aliens by column
Integer column = 0;
Integer xBlockPosition = 0;
// Loop while column is not eual to the NBR_OF_ALIEN_COLUMNS
while (column != aliens[row].length) { // Number of columns
// Call aliens[row][column].draw with g2d local variable
// to draw alien on screen
aliens[row][column].draw(g2d);
if (aliens[row][column].resetKilled) {
aliens[row][column].resetKilled = false;
nbrOfAliensKilled++;
}
if (nbrOfAliensKilled == 55) {
if (row == 0) {
// Initailize aliens[row][column] to a new Squid alien using
// xBlockPosition, yBlockPosition as the block position
// parameters and this are the gamePanel parameter
aliens[row][column] = new Squid(xBlockPosition, yBlockPosition, this);
} // End if
// Else If row is equal to 1 or 2 then
else if ((row == 1) || (row == 2)) {
// Initailize aliens[row][column] to a new Grasshopper alien
// using xBlockPosition, yBlockPosition as the block position
// parameters and this are the gamePanel parameter
aliens[row][column] = new Grasshopper(xBlockPosition, yBlockPosition, this);
} // End else if
// Else this must be rows 3 or 4
else {
// Initailize aliens[row][column] to a new Skull alien using
// xBlockPosition, yBlockPosition as the block position
// parameters and this are the gamePanel parameter
aliens[row][column] = new Skull(xBlockPosition, yBlockPosition, this);
} // End else
}
// Increment the column local variable by 1
column = column + 1;
xBlockPosition = xBlockPosition + Alien.BLOCK_WIDTH + COLUMN_SEPERATION_BLOCK;
} // End while loop
// Increment the row local variable by 1
row = row + 1;
yBlockPosition = yBlockPosition + Alien.BLOCK_HEIGHT + ROW_SEPERATION_BLOCK;
} // End while loop
// Draw shields
// TODO for shield starting at 0, while less than NBR_OF_SHEILDS,
// increment shild by 1
for (Integer shield = 0; shield < NBR_OF_SHEILDS; shield++) {
// TODO for shield starting at 0, while less than NBR_OF_SHEILD_PARTS,
// increment shild by 1
for (Integer shieldPart = 0; shieldPart < NBR_OF_SHEILD_PARTS; shieldPart++) {
// TODO Call shields[shield][shieldPart].draw with g2d as the parameter
if (shields[shield][shieldPart].explosionState
!= ShieldPart.ExplosionState.EXPLOSION_DONE) {
shields[shield][shieldPart].draw(g2d);
}
} // End for loop
} // End for loop
// Draw tank shots
for (int i = 0; i < tankShots.size(); i++) {
tankShots.get(i).draw(g2d);
} // for
// Draw aliens shots
for (int i = 0; i < alienShots.size(); i++) {
alienShots.get(i).draw(g2d);
} // for
bonusSaucer.draw(g2d);
// Draw tank
// Call tank.draw with g2d local variable to draw tank on screen
tank.draw(g2d);
// Driaw line at bottom of screen
g2d.setColor(Color.white);
g2d.fillRect(0, 560, GamePanel.FRAME_WIDTH, 3);
// Draw lives area
// Call livesArea.draw with g2d local variable to draw tank on screen
livesArea.draw(g2d);
// Draw score area
// Call scoreArea.draw with g2d local variable to draw score area
// on the screen
scoreArea.draw(g2d);
if (displayGameover == true) {
g2d.setFont(gameOverFont);
g2d.setColor(Color.white);
g2d.drawString("Game Over", 260, 290);
} // End if
// Draw over entire screen
g.drawImage(image, 0, 0, null);
} // paint
/**
* 建構子。
*
* @param rank 難易度
* @param j JApplet
*/
public WarField(Rank rank, JApplet j) {
super(0, 0, 800, 600);
this.playerTank1 = new PlayerTank(40, 40, j); // 坦克實體
allGameObjects.add(this.playerTank1); // 放入儲存戰場物件的Array，用於碰撞判斷
int[][] data = {
{5, 500},
{100, 0},
{160, 240},
{320, 400},
{400, 160},
{400, 520},
{640, 240},
{560, 240},
{280, 160},
{720, 160},
{160, 360}
};
// [0][0]=敵人數量，[0][1]=敵方坦克AI執行動作所間隔的時間(毫秒)
// [1][0]=敵人子彈攻擊力，其餘為敵方坦克的座標
switch (rank) { // 依據難易度決定WarField的資料
case EASY:
break;
case MEDIUM:
data[0][0] = 7;
data[0][1] = 400;
data[1][0] = 150;
break;
case HARD:
data[0][0] = 9;
data[0][1] = 340;
data[1][0] = 200;
}
for (int i = 0; i < data[0][0]; i++) { // 依據資料產生敵人，並放入Array中
EnemyTank e =
new EnemyTank(data[i + 2][0], data[i + 2][1], data[0][1], data[1][0], j, playerTank1);
enemyTank.add(e);
allGameObjects.add(this.enemyTank.get(i));
}
for (int i = 0; i < 15; i++) { // 戰場石頭(不可破壞)
if (i == 0 || i == 14) {
for (int ii = 0; ii < 20; ii++) {
Stone s = new Stone(ii * 40, i * 40, j);
nonmoveArrayList.add(s);
allGameObjects.add(s);
}
} else {
Stone s = new Stone(0, i * 40, j);
nonmoveArrayList.add(s);
allGameObjects.add(s);
s = new Stone(760, i * 40, j);
nonmoveArrayList.add(s);
allGameObjects.add(s);
}
}
Stone[] s =
new Stone[] {
new Stone(80, 80, j),
new Stone(120, 80, j),
new Stone(120, 80, j),
new Stone(160, 80, j),
new Stone(160, 120, j),
new Stone(320, 120, j),
new Stone(360, 120, j),
new Stone(400, 120, j),
new Stone(440, 120, j),
new Stone(480, 120, j),
new Stone(600, 120, j),
new Stone(600, 160, j),
new Stone(120, 200, j),
new Stone(400, 200, j),
new Stone(600, 200, j),
new Stone(120, 240, j),
new Stone(400, 240, j),
new Stone(600, 240, j),
new Stone(120, 280, j),
new Stone(160, 280, j),
new Stone(200, 280, j),
new Stone(240, 280, j),
new Stone(400, 280, j),
new Stone(600, 280, j),
new Stone(640, 280, j),
new Stone(120, 320, j),
new Stone(400, 320, j),
new Stone(120, 440, j),
new Stone(200, 440, j),
new Stone(240, 440, j),
new Stone(280, 440, j),
new Stone(560, 440, j),
new Stone(600, 440, j),
new Stone(640, 440, j),
new Stone(120, 280, j),
new Stone(160, 280, j),
new Stone(200, 280, j),
new Stone(120, 240, j),
new Stone(400, 240, j),
new Stone(600, 440, j),
new Stone(120, 480, j),
new Stone(440, 520, j)
};
for (int i = 0; i < s.length; i++) { // 將allGameObjects的內容設定完
nonmoveArrayList.add(s[i]);
allGameObjects.add(s[i]);
}
playerTank1.setAllOtherGameObjects(allGameObjects); // 將allGameObjects的內容給予各物件
for (int i = 0; i < this.enemyTank.size(); i++) {
enemyTank.get(i).setAllOtherGameObjects(allGameObjects);
}
}
