@Override
public void onUpdate(long elapsedTime) {
mScreenRect.set(0, 0, mGameView.getWidth(), mGameView.getHeight());
mLoops++;
mTimer += elapsedTime;
if (mTimer > mMaxTimer) {
gameOver();
}
mRobot.update(elapsedTime);
// Check if robot escaped
if (!RectF.intersects(mScreenRect, mRobot.getRect())) {
// change to random positions
mRobot.randomized(mScreenRect);
// penalty
mScore -= 50;
if (mScore < 0) {
mScore = 0;
}
}
if (mRobot.isDead()) {
if (mScreenRect.width() > 0 && mScreenRect.height() > 0) {
mRobot.randomized(mScreenRect);
}
}
}
// Returns true if the line segment defined by the given two points intersects the given
// rectangle.
public static boolean lineSegmentIntersectsRect(PointF p1, PointF p2, RectF r2) {
RectF line =
new RectF(
Math.min(p1.x, p2.x), Math.min(p1.y, p2.y), Math.max(p1.x, p2.x), Math.max(p1.y, p2.y));
// If the bounding box of the line segment intersects the rectangle or one contains the other,
// the line segment intersects the rectangle.
return RectF.intersects(line, r2) || line.contains(r2) || r2.contains(line);
}
boolean intersects(RectF tRect, float tRot, RectF sRect, float sRot) {
if (Math.abs(tRot) < Math.PI / 15 && Math.abs(sRot) < Math.PI / 15) {
return RectF.intersects(tRect, sRect);
}
float dist =
FloatMath.sqrt(
sqr(tRect.centerX() - sRect.centerX()) + sqr(tRect.centerY() - sRect.centerY()));
if (dist < 3) {
return true;
}
// difference close to 90/270 degrees
if (Math.abs(Math.cos(tRot - sRot)) < 0.3) {
// rotate one rectangle to 90 degrees
tRot += Math.PI / 2;
float l = tRect.centerX() - tRect.height() / 2;
float t = tRect.centerY() - tRect.width() / 2;
tRect = new RectF(l, t, l + tRect.height(), t + tRect.width());
}
// determine difference close to 180/0 degrees
if (Math.abs(FloatMath.sin(tRot - sRot)) < 0.3) {
// rotate t box
// (calculate offset for t center suppose we rotate around s center)
float diff =
(float)
(-Math.atan2(tRect.centerX() - sRect.centerX(), tRect.centerY() - sRect.centerY())
+ Math.PI / 2);
diff -= sRot;
float left = sRect.centerX() + dist * FloatMath.cos(diff) - tRect.width() / 2;
float top = sRect.centerY() - dist * FloatMath.sin(diff) - tRect.height() / 2;
RectF nRect = new RectF(left, top, left + tRect.width(), top + tRect.height());
return RectF.intersects(nRect, sRect);
}
// TODO other cases not covered
return RectF.intersects(tRect, sRect);
}
/**
* Draws a text label.
*
* @param canvas the canvas
* @param labelText the label text
* @param renderer the renderer
* @param prevLabelsBounds the previous rendered label bounds
* @param centerX the round chart center on X axis
* @param centerY the round chart center on Y axis
* @param shortRadius the short radius for the round chart
* @param longRadius the long radius for the round chart
* @param currentAngle the current angle
* @param angle the label extra angle
* @param left the left side
* @param right the right side
* @param color the label color
* @param paint the paint
* @param line if a line to the label should be drawn
*/
protected void drawLabel(
Canvas canvas,
String labelText,
DefaultRenderer renderer,
List<RectF> prevLabelsBounds,
int centerX,
int centerY,
float shortRadius,
float longRadius,
float currentAngle,
float angle,
int left,
int right,
int color,
Paint paint,
boolean line) {
if (renderer.isShowLabels()) {
paint.setColor(color);
double rAngle = Math.toRadians(90 - (currentAngle + angle / 2));
double sinValue = Math.sin(rAngle);
double cosValue = Math.cos(rAngle);
int x1 = Math.round(centerX + (float) (shortRadius * sinValue));
int y1 = Math.round(centerY + (float) (shortRadius * cosValue));
int x2 = Math.round(centerX + (float) (longRadius * sinValue));
int y2 = Math.round(centerY + (float) (longRadius * cosValue));
float size = renderer.getLabelsTextSize();
float extra = Math.max(size / 2, 10);
paint.setTextAlign(Align.LEFT);
if (x1 > x2) {
extra = -extra;
paint.setTextAlign(Align.RIGHT);
}
float xLabel = x2 + extra;
float yLabel = y2;
float width = right - xLabel;
if (x1 > x2) {
width = xLabel - left;
}
labelText = getFitText(labelText, width, paint);
float widthLabel = paint.measureText(labelText);
boolean okBounds = false;
while (!okBounds && line) {
boolean intersects = false;
int length = prevLabelsBounds.size();
for (int j = 0; j < length && !intersects; j++) {
RectF prevLabelBounds = prevLabelsBounds.get(j);
if (prevLabelBounds.intersects(xLabel, yLabel, xLabel + widthLabel, yLabel + size)) {
intersects = true;
yLabel = Math.max(yLabel, prevLabelBounds.bottom);
}
}
okBounds = !intersects;
}
if (line) {
y2 = (int) (yLabel - size / 2);
canvas.drawLine(x1, y1, x2, y2, paint);
canvas.drawLine(x2, y2, x2 + extra, y2, paint);
} else {
paint.setTextAlign(Align.CENTER);
}
canvas.drawText(labelText, xLabel, yLabel, paint);
if (line) {
prevLabelsBounds.add(new RectF(xLabel, yLabel, xLabel + widthLabel, yLabel + size));
}
}
}
private boolean isVisible() {
return RectF.intersects(documentView.getViewRect(), getTargetRectF());
}
private void update() {
// Did an invader bump into the side of the screen
boolean bumped = false;
// Has the player lost
boolean lost = false;
// Move the player's ship
playerShip.update(fps);
// Update the invaders if visible
// Update the players bullet
if (bullet.getStatus()) {
bullet.update(fps);
}
// Update all the invaders bullets if active
for (int i = 0; i < invadersBullets.length; i++) {
if (invadersBullets[i].getStatus()) {
invadersBullets[i].update(fps);
}
}
// Update all the invaders if visible
for (int i = 0; i < numInvaders; i++) {
if (invaders[i].getVisibility()) {
// Move the next invader
invaders[i].update(fps);
// Does he want to take a shot?
if (invaders[i].takeAim(playerShip.getX(), playerShip.getLength())) {
// If so try and spawn a bullet
if (invadersBullets[nextBullet].shoot(
invaders[i].getX() + invaders[i].getLength() / 2, invaders[i].getY(), bullet.DOWN)) {
// Shot fired
// Prepare for the next shot
nextBullet++;
// Loop back to the first one if we have reached the last
if (nextBullet == maxInvaderBullets) {
// This stops the firing of another bullet until one completes its journey
// Because if bullet 0 is still active shoot returns false.
nextBullet = 0;
}
}
}
// If that move caused them to bump the screen change bumped to true
if (invaders[i].getX() > screenX - invaders[i].getLength() || invaders[i].getX() < 0) {
bumped = true;
}
}
}
// Did an invader bump into the edge of the screen
if (bumped) {
// Move all the invaders down and change direction
for (int i = 0; i < numInvaders; i++) {
invaders[i].dropDownAndReverse();
// Have the invaders landed
if (invaders[i].getY() > screenY - screenY / 10) {
lost = true;
}
}
// Increase the menace level
// By making the sounds more frequent
menaceInterval = menaceInterval - 80;
}
if (lost) {
prepareLevel();
}
// Has the player's bullet hit the top of the screen
if (bullet.getImpactPointY() < 0) {
bullet.setInactive();
}
// Has an invaders bullet hit the bottom of the screen
for (int i = 0; i < invadersBullets.length; i++) {
if (invadersBullets[i].getImpactPointY() > screenY) {
invadersBullets[i].setInactive();
}
}
// Has the player's bullet hit an invader
if (bullet.getStatus()) {
for (int i = 0; i < numInvaders; i++) {
if (invaders[i].getVisibility()) {
if (RectF.intersects(bullet.getRect(), invaders[i].getRect())) {
invaders[i].setInvisible();
soundPool.play(invaderExplodeID, 1, 1, 0, 0, 1);
bullet.setInactive();
score = score + 10;
// Has the player won
if (score == numInvaders * 10) {
paused = true;
String mScore = score + "";
Log.d("Score: ", mScore);
Context context = getContext();
Intent intent = new Intent(context, ScoreActivity.class);
intent.putExtra("score", mScore);
context.startActivity(intent);
}
}
}
}
}
// Has an alien bullet hit a shelter brick
for (int i = 0; i < invadersBullets.length; i++) {
if (invadersBullets[i].getStatus()) {
for (int j = 0; j < numBricks; j++) {
if (bricks[j].getVisibility()) {
if (RectF.intersects(invadersBullets[i].getRect(), bricks[j].getRect())) {
// A collision has occurred
invadersBullets[i].setInactive();
bricks[j].setInvisible();
soundPool.play(damageShelterID, 1, 1, 0, 0, 1);
}
}
}
}
}
// Has a player bullet hit a shelter brick
if (bullet.getStatus()) {
for (int i = 0; i < numBricks; i++) {
if (bricks[i].getVisibility()) {
if (RectF.intersects(bullet.getRect(), bricks[i].getRect())) {
// A collision has occurred
bullet.setInactive();
bricks[i].setInvisible();
soundPool.play(damageShelterID, 1, 1, 0, 0, 1);
}
}
}
}
// Has an invader bullet hit the player ship
for (int i = 0; i < invadersBullets.length; i++) {
if (invadersBullets[i].getStatus()) {
if (RectF.intersects(playerShip.getRect(), invadersBullets[i].getRect())) {
invadersBullets[i].setInactive();
lives--;
soundPool.play(playerExplodeID, 1, 1, 0, 0, 1);
// Is it game over?
if (lives == 0) {
paused = true;
// lives = 3;
// score = 0;
String mScore = score + "";
Context context = getContext();
Intent intent = new Intent(context, ScoreActivity.class);
intent.putExtra("score", mScore);
context.startActivity(intent);
// prepareLevel();
}
}
}
}
}