@Override
public synchronized void onDraw(Canvas canvas) {
long nt = SystemClock.elapsedRealtime();
if (canvas == null) return;
if (t < 0) t = nt;
screenW = canvas.getWidth();
screenH = canvas.getHeight();
if (berzerk && nt - berzerkStart > berzerkLength) // Check if still in berzerk mode
berzerk = false;
if (mc == null) mc = new Character(screenW / 2, screenH - 30, screenW, screenH);
if (!over) {
// add Enemies
if (firing && nt - g >= 150) { // Add bullets
bullets.add(new Bullet(_x, _y, mc.getx(), mc.gety(), screenH, screenW));
g = nt;
}
// Adds a new enemy from the specified sets depending on the level reached
if (nt - f >= 1000) {
if (level < 2) {
squares.add(new BoxParticle(r, screenH, screenW, mc.getx(), mc.gety()));
} else if (level < 3) {
parabolics.add(new ParabolicParticle(r, screenH, screenW, mc.getx(), mc.gety()));
turns.add(new TurningParticle(r, screenH, screenW, mc.getx(), mc.gety()));
} else {
turns.add(new TurningParticle(r, screenH, screenW, mc.getx(), mc.gety()));
squares.add(new BoxParticle(r, screenH, screenW, mc.getx(), mc.gety()));
parabolics.add(new ParabolicParticle(r, screenH, screenW, mc.getx(), mc.gety()));
homings.add(new HomingParticle(r, 20, 15, screenH, screenW, mc.getx(), mc.gety()));
}
f = nt;
}
// stop add Enemies
rms.clear();
rms2.clear();
rms3.clear();
rms4.clear();
rms5.clear();
// Garbage Collection
// Onscreen checking
for (Bullet i : bullets) if (!i.onscreen()) rms.add(i);
for (BoxParticle i : squares) if (!i.onscreen()) rms2.add(i);
for (ParabolicParticle i : parabolics) if (!i.onscreen()) rms3.add(i);
for (TurningParticle i : turns) if (!i.onscreen()) rms4.add(i);
for (HomingParticle i : homings) if (!i.onscreen()) rms5.add(i);
bullets.removeAll(rms);
squares.removeAll(rms2);
parabolics.removeAll(rms3);
turns.removeAll(rms4);
homings.removeAll(rms5);
rms.clear();
rms2.clear();
rms3.clear();
rms4.clear();
rms5.clear();
// Garbage collection
// end Onscreen checking
// Enemy collision with bullets
for (Bullet i : bullets) {
for (BoxParticle j : squares) {
if (sq(i.getx() - j.getx()) + sq(i.gety() - j.gety())
<= sq(i.getRadius() + j.getRadius())) {
rms.add(i); // Add to garbage collection set
rms2.add(j);
if (r.nextInt(20) == 0)
berzerkUps.add(new BerzerkUp(j.getx(), j.gety())); // Give chance of berzerk powerup
score++;
}
}
for (ParabolicParticle j : parabolics) {
if (sq(i.getx() - j.getx()) + sq(i.gety() - j.gety())
<= sq(i.getRadius() + j.getRadius())) {
rms.add(i);
rms3.add(j);
if (r.nextInt(20) == 0) berzerkUps.add(new BerzerkUp(j.getx(), j.gety()));
score++;
}
}
for (TurningParticle j : turns) {
if (sq(i.getx() - j.getx()) + sq(i.gety() - j.gety())
<= sq(i.getRadius() + j.getRadius())) {
rms.add(i);
rms4.add(j);
if (r.nextInt(20) == 0) berzerkUps.add(new BerzerkUp(j.getx(), j.gety()));
score++;
}
}
for (HomingParticle j : homings) {
if (sq(i.getx() - j.getx()) + sq(i.gety() - j.gety())
<= sq(i.getRadius() + j.getRadius())) {
rms.add(i);
rms5.add(j);
if (r.nextInt(20) == 0) berzerkUps.add(new BerzerkUp(j.getx(), j.gety()));
score++;
}
}
}
squares.removeAll(rms2);
parabolics.removeAll(rms3);
turns.removeAll(rms4);
homings.removeAll(rms5);
bullets.removeAll(rms);
rms.clear();
rms2.clear();
rms3.clear();
rms4.clear();
rms5.clear();
// Garbage collection
// end Enemy collision with bullets
// Enemy collision with character
// one cannot die in berzerk mode
for (BoxParticle j : squares)
// Collision detection
if (sq(mc.getx() - j.getx()) + sq(mc.gety() - j.gety())
<= sq(mc.getRadius() + j.getRadius())) {
if (berzerk) {
rms2.add(j);
score++;
} else over = true; // Game over if collision
}
for (ParabolicParticle j : parabolics)
if (sq(mc.getx() - j.getx()) + sq(mc.gety() - j.gety())
<= sq(mc.getRadius() + j.getRadius())) {
if (berzerk) {
rms3.add(j);
score++;
} else over = true;
}
for (TurningParticle j : turns)
if (sq(mc.getx() - j.getx()) + sq(mc.gety() - j.gety())
<= sq(mc.getRadius() + j.getRadius())) {
if (berzerk) {
rms4.add(j);
score++;
} else over = true;
}
for (HomingParticle j : homings)
if (sq(mc.getx() - j.getx()) + sq(mc.gety() - j.gety())
<= sq(mc.getRadius() + j.getRadius())) {
if (berzerk) {
rms5.add(j);
score++;
} else over = true;
}
if (berzerk) {
// Garbage collection
squares.removeAll(rms2);
parabolics.removeAll(rms3);
turns.removeAll(rms4);
homings.removeAll(rms5);
over = false;
}
// end Enemy collision with character
if (over) {
berzerk = false;
stop();
}
// Berzerk powerup collision
if (!berzerk) {
for (BerzerkUp i : berzerkUps)
if (sq(mc.getx() - i.getx()) + sq(mc.gety() - i.gety())
<= sq(mc.getRadius() + i.getRadius())) {
berzerk = true;
berzerkStart = SystemClock.elapsedRealtime();
rmsBU.add(i);
}
}
berzerkUps.removeAll(rmsBU);
rmsBU.clear();
// end Berzerk powerup collision
}
// Berzerk events
if (berzerk && !over) {
// Berzerk paints
bitmapPaint = invert;
textPaint = blackTextPaint;
canvas.drawColor(Color.WHITE);
} else {
// Normal paints
bitmapPaint = aA;
textPaint = whiteTextPaint;
canvas.drawColor(Color.BLACK);
}
// end Berzerk events
if (!over) {
// Rendering particles
for (BoxParticle i : squares) {
i.update(((double) (nt - t)) / 1000);
// Translate to position with rotation
matrix.setRotate(i.getAngle(), squareW / 2, squareH / 2);
matrix.postTranslate(i.getx() - squareW / 2, i.gety() - squareH / 2);
canvas.drawBitmap(squareBitmap, matrix, bitmapPaint);
}
for (ParabolicParticle i : parabolics) {
i.update(((double) (nt - t)) / 1000);
matrix.setRotate(i.getAngle(), parabolicW / 2, parabolicH / 2);
matrix.postTranslate(i.getx() - parabolicW / 2, i.gety() - parabolicH / 2);
canvas.drawBitmap(parabolicBitmap, matrix, bitmapPaint);
}
for (TurningParticle i : turns) {
i.update(((double) (nt - t)) / 1000);
matrix.setRotate(i.getAngle(), turningW / 2, turningH / 2);
matrix.postTranslate(i.getx() - turningW / 2, i.gety() - turningH / 2);
canvas.drawBitmap(turningBitmap, matrix, bitmapPaint);
}
for (HomingParticle i : homings) {
i.update(((double) (nt - t)) / 1000);
matrix.setRotate(i.getAngle(), homingW / 2, homingH / 2);
matrix.postTranslate(i.getx() - homingW / 2, i.gety() - homingH / 2);
canvas.drawBitmap(homingBitmap, matrix, bitmapPaint);
}
for (Bullet i : bullets) {
i.update(((double) (nt - t)) / 1000);
matrix.setRotate(i.getAngle(), bulletW / 2, bulletH / 2);
matrix.postTranslate(i.getx() - bulletW / 2, i.gety() - bulletH / 2);
canvas.drawBitmap(bulletBitmap, matrix, bitmapPaint);
}
for (BerzerkUp i : berzerkUps) {
canvas.drawBitmap(
berzerkBitmap, i.getx() - berzerkW / 2, i.gety() - berzerkH / 2, bitmapPaint);
}
mc.update(((double) (nt - t)) / 1000);
for (HomingParticle i : homings) {
i.updateMC(mc.getx(), mc.gety());
}
matrix.setRotate(mc.getAngle(), mcW / 2, mcH / 2);
matrix.postTranslate(mc.getx() - mcW / 2, mc.gety() - mcH / 2);
canvas.drawBitmap(mcBitmap, matrix, bitmapPaint);
// end Rendering particles
// leveling
if (score >= 50) level = 3;
else if (score >= 25) level = 2;
}
// end leveling
// Text rendering
canvas.drawText("Score: " + score, 50, 25, textPaint);
canvas.drawText("Level: " + level, screenW - 100, 25, textPaint);
if (over) {
canvas.drawText(
OVER_STR,
(screenW - largeTextPaint.measureText(OVER_STR)) / 2,
screenH / 2 - 12,
largeTextPaint);
canvas.drawText(
OVER_STR_2,
(screenW - largeTextPaint.measureText(OVER_STR_2)) / 2,
screenH / 2 + 16,
largeTextPaint);
} else if (berzerk) {
canvas.drawText(
BERZERK_STR, (screenW - redTextPaint.measureText(BERZERK_STR)) / 2, 25, redTextPaint);
String timeStr =
String.format("%.1f seconds left", ((double) berzerkLength - nt + berzerkStart) / 1000);
if (nt - berzerkStart < 8000 || ((nt - berzerkStart) / 200) % 2 == 0) {
canvas.drawText(
timeStr, (screenW - redTextPaint.measureText(timeStr)) / 2, 40, redTextPaint);
}
}
// end Text rendering
t = nt;
}
