/**
* Attempts to add an image to this {@link GLTexture}
*
* @param image The {@link Image} to add
* @return The resulting {@link Texture}, or <code>null</code> if it didn't fit
*/
public Texture addImage(Image image) {
assert image.format == format;
RectanglePacker.Rectangle rpr = packer.insert(image.getWidth(), image.getHeight(), image);
if (rpr != null) {
assert rpr.width == image.getWidth();
assert rpr.height == image.getHeight();
writeToTexture(rpr, image.getData());
Vector2f bottomleft = new Vector2f(rpr.x, rpr.y);
Vector2f topRight = new Vector2f(rpr.x + rpr.width, rpr.y + rpr.height);
bottomleft.x /= size.getWidth();
bottomleft.y /= size.getHeight();
topRight.x /= size.getWidth();
topRight.y /= size.getHeight();
Texture t = new Texture(this, bottomleft, topRight, image);
residentTextures.add(t);
return t;
} else {
return null;
}
}
private Vector2f converttoimagesizes(
Vector2f oldvec, Vector2f offset, BufferedImage oldimage, BufferedImage newimage) {
Vector2f vec = new Vector2f();
vec.x = oldvec.x * oldimage.getWidth();
vec.x += offset.x;
vec.x /= newimage.getWidth();
vec.y = oldvec.y * oldimage.getHeight();
vec.y += offset.y;
vec.y /= newimage.getHeight();
return vec;
}
// Depending on the degrees at which this projectile was fired, the X and Y speeds can
// be calculated using math...
private void calculateSpeed(float degrees) {
// Using simple trigonometry we can calculate the sides of a triangle by given (shooting) angel
// and
// the length of the hypotenuse, which we will keep as 1 for simplicity's sake
// sin(a) = opposite / hypotenuse
// cos(a) = adjacent / hypotenuse
// -> lengths of the opposites and adjacent sides can be calculated by using the following
// formula
// (Hypotenuse is 1, so we can disregard it completely)
// opposite = sin(a) / 1
// adjacent = cos(a) / 1
speed.x = (float) Math.cos(Math.toRadians(degrees)) * 20;
speed.y = (float) Math.sin(Math.toRadians(degrees)) * 20;
}
private void calculateOrigin(int x, int y, float degrees) {
// this is the middle point of the tank (and turret) from where the projectile was shot
// since the projectile has to originate from the end of the turret and not the middle
// point, we can calculate its actual starting position by knowing the angle (degrees)
// and the size of the tank (radius of drawing circle) which is 150
// Note: The hypotenuse is equal to the radius of the drawing circle, which is 150
// -> Delta Y is then defined by sin(degrees) = opposite / 150
// -> opposite = sin(degrees)*150 (and we need to add 150 because the drawing circle
// originates from the screen's 0/0 and not the middle of the circle)
// Delta X is the same as above, but with using cos(degrees) instead
// we use 175 here to account for drawing over the turret, which we dont want to do
position.x = x + (float) Math.cos(Math.toRadians(degrees)) * 175 + 150;
position.y = y + (float) Math.sin(Math.toRadians(degrees)) * 175 + 150;
}
public void move(float scale) {
Vector2f oldPosition = new Vector2f(position);
// make our move
position.y += velocity.y * scale;
// figure our new bounds
BoundingBox box = getBoundingBox();
// check for floor collision
int y = (int) Math.floor(box.bottomY);
for (int x = (int) Math.floor(box.leftX); x < Math.ceil(box.rightX); x++) {
TileMapTile tile = null;
try {
tile = map.getMap()[x][y];
} catch (Exception e) {
}
if (tile != null && velocity.y <= 0) {
WalkingEntity walker = this instanceof WalkingEntity ? (WalkingEntity) this : null;
if (walker != null && !walker.dead && tile.isDangerous()) {
((WalkingEntity) this).damage(5);
position.y = (int) oldPosition.y;
velocity.y = 15f;
velocity.x = -0.5f * velocity.x;
break;
}
if (tile.isSolid() || tile.isPlatform()) {
if (velocity.y < -1) {
floorCollision();
System.out.println(this.getClass().getSimpleName() + ": " + box + " " + this.position);
}
position.y = (int) oldPosition.y;
velocity.y = 0f;
// apply friction
if (Math.abs(velocity.x) > 0) {
float sign = Math.abs(velocity.x) / velocity.x;
velocity.x -= sign * 9.8 * scale;
// if we managed to reverse the direction of the horiz velocity, just stop
if (velocity.x != 0 && sign != Math.abs(velocity.x) / velocity.x) {
velocity.x = 0;
}
}
break;
}
}
}
position.x += velocity.x * scale;
// figure our new bounds
box = getBoundingBox();
// check for wall collision
for (int x = (int) box.leftX; x <= box.rightX; x++) {
for (y = (int) box.bottomY; y < box.topY; y++) {
TileMapTile tile = null;
try {
tile = map.getMap()[x][y];
} catch (Exception e) {
}
if (tile != null && tile.isSolid()) {
wallCollision();
// System.out.print(" WALL [" + x + ", " + y + "]");
if (velocity.x > 0) position.x = (int) Math.ceil(oldPosition.x);
else position.x = (int) Math.floor(oldPosition.x);
velocity.x = 0f;
break;
}
}
}
}
@Override
public void update(BaseObject parent) {
Vector2f acceleration = ((GameObject) parent).getAcceleration();
acceleration.set(0, 0);
if (sys.keyboard.isKeyPressed(ButtonActions.MOVE_UP)) {
acceleration.y = ACCELERATION;
}
if (sys.keyboard.isKeyPressed(ButtonActions.MOVE_DOWN)) {
acceleration.y = -ACCELERATION;
}
if (sys.keyboard.isKeyPressed(ButtonActions.MOVE_LEFT)) {
acceleration.x = -ACCELERATION;
}
if (sys.keyboard.isKeyPressed(ButtonActions.MOVE_RIGHT)) {
acceleration.x = ACCELERATION;
}
if (sys.currentTime - lastTime < fireRate) {
return;
}
// FIXME I really shouldn't be using hardcoded values to figure out where to
// shoot the bullets from.
// FIXME I also REALLY REALLY need to get my vectors sorted out so that I don't have to
// resort to this ugliness.
bulletVelocity.set(
((GameObject) parent).getVelocity().x, ((GameObject) parent).getVelocity().x);
bulletPosition.set(16f, 0f);
if (sys.keyboard.isKeyPressed(ButtonActions.FIRE_LEFT)) {
bulletVelocity.x -= BULLET_VELOCITY;
bulletPosition.y = 16f;
bulletPosition.x = 0f;
}
if (sys.keyboard.isKeyPressed(ButtonActions.FIRE_RIGHT)) {
bulletVelocity.x += BULLET_VELOCITY;
bulletPosition.y = 16f;
bulletPosition.x = 32f;
}
if (sys.keyboard.isKeyPressed(ButtonActions.FIRE_UP)) {
bulletVelocity.y += BULLET_VELOCITY;
bulletPosition.y = 32f;
}
if (sys.keyboard.isKeyPressed(ButtonActions.FIRE_DOWN)) {
bulletVelocity.y -= BULLET_VELOCITY;
bulletPosition.y = 0f;
}
if (bulletVelocity.x != 0f || bulletVelocity.y != 0f) {
Vector2f position = ((GameObject) parent).getPosition();
bulletPosition.x += position.x;
bulletPosition.y += position.y;
GameObject bullet = bulletPool.obtain();
if (bullet != null) {
bullet.setPosition(bulletPosition.x, bulletPosition.y);
bulletVelocity.rotate(bulletCounter * spreadDegree);
bullet.setVelocity(bulletVelocity.x, bulletVelocity.y);
sys.manager.add(bullet);
if (bulletCounter == spreadCount / 2) {
bulletCounter = -bulletCounter;
} else {
bulletCounter++;
}
}
}
lastTime = sys.currentTime;
}
public void update() {
position.x += speed.x;
position.y += speed.y;
}
public void setUV(float[] uv) {
unwrap.x = uv[0];
unwrap.y = uv[1];
}