protected boolean hasCollided(double xDir, double yDir) {
if (super.hasCollided(xDir, yDir)) {
seenPlayer = false;
return true;
}
// Checks if it will collide with other AIs
for (Mob ai : level.getAIs()) {
if (!ai.equals(this)) {
if (getCollisionBox(xDir, yDir).intersects(ai.getCollisionBox())) {
return true;
}
}
}
return false;
}
protected boolean sees(Mob player) {
double x0 = ((x < player.getX()) ? x : player.getX()) / 16;
double x1 =
(((x + sprite.getWidth() > player.getX() + player.getSprite().getWidth())
? x + sprite.getWidth()
: player.getX() + player.getSprite().getWidth())
- 1)
/ 16;
double y0 = ((y < player.getY()) ? y : player.getY()) / 16;
double y1 =
(((y + sprite.getHeight() > player.getY() + player.getSprite().getHeight())
? y + sprite.getHeight()
: player.getY() + player.getSprite().getHeight())
- 1)
/ 16;
if (x != player.getX())
getLineEquation(
x + sprite.getWidth(),
player.getX() + player.getSprite().getWidth(),
y + sprite.getHeight(),
player.getY() + player.getSprite().getHeight());
for (double yy = y0; yy < y1; yy++) {
if ((int) x0 != (int) x1) {
for (double xx = x0; xx <= x1; xx++) {
if (level.getTile((int) xx, (int) yy).isSolid()) {
if (yy <= xx * k + m && xx * k + m < yy + 1) return false;
if (xx <= (yy - m) / k && (yy - m) / k < xx + 1) return false;
}
}
} else if (level.getTile((int) x1, (int) yy).isSolid()) return false;
}
if (x != player.getX())
getLineEquation(
x + sprite.getWidth(), player.getX() + player.getSprite().getWidth(), y, player.getY());
for (double yy = y0; yy < y1; yy++) {
if ((int) x0 != (int) x1) {
for (double xx = x0; xx <= x1; xx++) {
if (level.getTile((int) xx, (int) yy).isSolid()) {
if (yy <= xx * k + m && xx * k + m < yy + 1) return false;
if (xx <= (yy - m) / k && (yy - m) / k < xx + 1) return false;
}
}
} else if (level.getTile((int) x1, (int) yy).isSolid()) return false;
}
if (x != player.getX())
getLineEquation(
x + sprite.getWidth(),
player.getX() + player.getSprite().getWidth(),
y + sprite.getHeight(),
player.getY() + sprite.getHeight());
for (double yy = y0; yy < y1; yy++) {
if ((int) x0 != (int) x1) {
for (double xx = x0; xx <= x1; xx++) {
if (level.getTile((int) xx, (int) yy).isSolid()) {
if (yy <= xx * k + m && xx * k + m < yy + 1) return false;
if (xx <= (yy - m) / k && (yy - m) / k < xx + 1) return false;
}
}
} else if (level.getTile((int) x1, (int) yy).isSolid()) return false;
}
if (x != player.getX())
getLineEquation(x, player.getX(), y + sprite.getHeight(), player.getY() + sprite.getHeight());
for (double yy = y0; yy < y1; yy++) {
if ((int) x0 != (int) x1) {
for (double xx = x0; xx <= x1; xx++) {
if (level.getTile((int) xx, (int) yy).isSolid()) {
if (yy <= xx * k + m && xx * k + m < yy + 1) return false;
if (xx <= (yy - m) / k && (yy - m) / k < xx + 1) return false;
}
}
} else if (level.getTile((int) x1, (int) yy).isSolid()) return false;
}
// This may be redundant
if (x != player.getX())
getLineEquation(
x + sprite.getWidth() / 2 + 1,
player.getX() + player.getSprite().getWidth() / 2,
y + sprite.getHeight() / 2,
player.getY() + player.getSprite().getHeight() / 2);
// The value of the first parameter is changed (+1). By doing this, it
// prevents the AI to spot the player when the situation is like this:
// P = player
// M = AI
// X = wall
// PX
// XM
// If this would not be done, the AI would be able to look through the
// walls
for (double yy = y0; yy < y1; yy++) {
if ((int) x0 != (int) x1) {
for (double xx = x0; xx <= x1; xx++) {
if (level.getTile((int) xx, (int) yy).isSolid()) {
if (yy <= xx * k + m && xx * k + m < yy + 1) return false;
if (xx <= (yy - m) / k && (yy - m) / k < xx + 1) return false;
}
}
} else if (level.getTile((int) x1, (int) yy).isSolid()) return false;
}
return true;
}
public void tick() {
super.tick();
}