public RBootsWallSprite(RBootsView host, Sprite bg) {
super(host, theWallImg);
_bg = bg;
_prevX = 0.0f;
_stopped = false;
_topEdges = new RingBuffer(200);
_bottomEdges = new RingBuffer(200);
SpriteAppearanceAgent a =
new SpriteAppearanceAgent() {
public void renderSpriteOn(Sprite aSprite, Canvas aCanvas) {
PointF p = pos();
int le = (int) _leftEdge;
int i = 0;
while (le < aCanvas.getWidth() + WALL_SEGMENT_WIDTH) {
aCanvas.drawBitmap(
shape(), le, _topEdges.ref(i) - shape().getHeight(), aSprite.host().paint());
aCanvas.drawBitmap(shape(), le, _bottomEdges.ref(i), aSprite.host().paint());
i++;
le += WALL_SEGMENT_WIDTH;
}
}
};
SpriteBehaviorAgent b =
new SpriteBehaviorAgent() {
public void act(Sprite aSprite) {
RBootsView v = (RBootsView) host();
if (!v.isPaused()) {
while (_xPos > pos().x) {
_topEdges.append(nextWallTop());
_bottomEdges.append(nextWallBottom());
_xPos -= WALL_SEGMENT_WIDTH;
}
_leftEdge = pos().x;
while (_leftEdge < -WALL_SEGMENT_WIDTH) {
_leftEdge += WALL_SEGMENT_WIDTH;
}
_bg.moveTo(_bg.pos().x + (vel().x / 2.0f), _bg.pos().y + (vel().y / 2.0f));
v.updateScoar((int) (-(pos().x) / 20.0f));
if (v.ogen() != null) {
v.ogen().update(-(pos().x));
}
if (!_stopped && ((int) _prevX / 1200) != ((int) (pos().x) / 1200)) {
setVel(vel().x * 1.2f, 0.0f);
}
_prevX = pos().x;
DefaultBehaviorAgent.instance().act(aSprite);
}
}
};
setAppearanceAgent(a);
setBehaviorAgent(b);
_wallTop = 15;
_wallTopFirstDeriv = 0;
_wallTopSecondDeriv = 0;
_wallDist = 200;
_xPos = 0.0;
_leftEdge = 0.0;
for (int i = 0; i < 200; i++) {
_topEdges.append(nextWallTop());
_bottomEdges.append(nextWallBottom());
}
setVel(-1.0f, 0.0f);
}
public int bottomEdgeFor(float x) {
int idx = (int) (x + _leftEdge);
return _bottomEdges.ref(idx / WALL_SEGMENT_WIDTH);
}