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package ch.asynk.gdx.boardgame.animations;
import java.util.Random;
import com.badlogic.gdx.audio.Sound;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.utils.Pool;
import ch.asynk.gdx.boardgame.FramedSprite;
import ch.asynk.gdx.boardgame.Drawable;
public class ShotAnimation extends TimedAnimation implements Drawable, Pool.Poolable
{
private static final Pool<ShotAnimation> shotAnimationPool = new Pool<ShotAnimation>()
{
@Override protected ShotAnimation newObject()
{
return new ShotAnimation();
}
};
public static ShotAnimation obtain()
{
return shotAnimationPool.obtain();
}
@Override public void dispose()
{
shotAnimationPool.free(this);
}
private boolean fired;
private boolean hit;
private boolean drawFire;
private boolean drawExplosion;
private float fireTime;
private float hitTime;
private float smokeEndTime;
private float explosionEndTime;
private FramedSprite shellSprites;
private float shellW;
private float shellDx;
private float shellDy;
private float shellDw;
private Sound fireSnd;
private int smokeFrame;
private float smokeDf;
private FramedSprite explosionSprites;
private int explosionFrame;
private int explosionRow;
private float explosionDf;
private Sound explosionSnd;
private static Random random = new Random();
public void compute(int i, FireAnimation.Config cfg, float x0, float y0, float x1, float y1)
{
// scattering
x1 = (x1 + (random.nextFloat() * cfg.maxFireScattering) - (cfg.maxFireScattering / 2f));
y1 = (y1 + (random.nextFloat() * cfg.maxFireScattering) - (cfg.maxFireScattering / 2f));
// geometry
float dx = (x1 - x0);
float dy = (y1 - y0);
float r = (float) (MathUtils.atan2(y0 - y1, x0 - x1)) * MathUtils.radiansToDegrees;
float w = (float) Math.sqrt((dx * dx) + (dy * dy));
// timing
float fireDuration = (w / cfg.shellSpeed);
float smokeDuration = cfg.smokeDuration;
float explosionDuration = cfg.explosionDuration;
this.fireTime = (random.nextFloat() * cfg.maxFireDelay) + (i * cfg.burstDelay);
this.hitTime = this.fireTime + fireDuration;
this.smokeEndTime = this.hitTime + smokeDuration;
this.explosionEndTime = this.hitTime + explosionDuration;
float endTime = (this.smokeEndTime > this.explosionEndTime ? this.smokeEndTime : this.explosionEndTime);
// shell vars
this.shellSprites = new FramedSprite(cfg.shellSprites);
this.shellSprites.x = x0;
this.shellSprites.y = y0;
this.shellSprites.r = r;
this.shellW = 0f;
this.shellDw = (w / fireDuration);
this.shellDx = (dx / fireDuration);
this.shellDy = (dy / fireDuration);
this.fireSnd = (i == 0 ? cfg.shellFireSnd : null);
// smoke vars
this.smokeFrame = 0;
this.smokeDf = ((shellSprites.rows - 1) / smokeDuration);
// explosion vars
if (cfg.explosionSprites == null) {
this.explosionSnd = null;
this.explosionSprites = null;
} else {
this.explosionFrame = 0;
this.explosionSprites = new FramedSprite(cfg.explosionSprites);
this.explosionSprites.x = (x1 - (explosionSprites.getFrame().getRegionWidth() / 2.0f));
this.explosionSprites.y = (y1 - (explosionSprites.getFrame().getRegionHeight() / 2.0f));
this.explosionDf = (explosionSprites.cols / explosionDuration);
this.explosionRow = random.nextInt(explosionSprites.rows);
this.explosionSprites.setFrame(explosionRow, 0);
this.explosionSnd = cfg.explosionSnd;
}
this.fired = false;
this.hit = false;
this.drawFire = false;
this.drawExplosion = false;
setDuration(endTime);
}
@Override public void begin() { }
@Override public void end() { }
@Override public void update(float delta)
{
if (!fired && (elapsed < fireTime)) {
return;
}
if (!fired) {
fired = true;
drawFire = true;
if(fireSnd != null) {
fireSnd.play();
}
}
if (!hit && (elapsed < hitTime)) {
this.shellW += (shellDw * delta);
this.shellSprites.x += (shellDx * delta);
this.shellSprites.y += (shellDy * delta);
this.shellSprites.getFrame().setRegionWidth((int) shellW);
return;
}
if (!hit) {
hit = true;
drawExplosion = true;
if(explosionSnd != null) {
explosionSnd.play();
}
}
float dt = (elapsed - hitTime);
if (elapsed < smokeEndTime) {
int frame = (int) (dt * smokeDf) + 1;
if (frame != smokeFrame) {
smokeFrame = frame;
this.shellSprites.setFrame(smokeFrame, 0);
this.shellSprites.getFrame().setRegionWidth((int) shellW);
}
} else {
drawFire = false;
}
if (elapsed < explosionEndTime) {
int frame = (int) (dt * explosionDf);
if (frame != explosionFrame) {
explosionFrame = frame;
explosionSprites.setFrame(explosionRow, explosionFrame);
}
} else {
drawExplosion = false;
}
}
@Override public void draw(Batch batch)
{
if (drawFire) {
this.shellSprites.draw(batch);
}
if (drawExplosion) {
this.explosionSprites.draw(batch);
}
}
@Override public void drawDebug(ShapeRenderer shapeRenderer)
{
if (drawFire) {
this.shellSprites.drawDebug(shapeRenderer);
}
if (drawExplosion) {
this.explosionSprites.drawDebug(shapeRenderer);
}
}
}
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