/**
* Calculates movements and collisions between objects in play
*
* @return
*/
public String calculate() {
if (gameStatus.equalsIgnoreCase(GameConstants.GAME_STATUS_PLAYING)) {
/** *Movement** */
for (Projectile proj : projectiles) {
proj.move();
}
moveEnemies();
/** *Collisions** */
calculatePlayerVsWall();
calculateProjectileEscape();
calculateCollisionEnemyVsProjectile();
if (enemies.isEmpty()) {
gameStatus = GameConstants.GAME_STATUS_GAME_OVER;
}
calculateEnemyReachingPlayer();
for (Explosion exp : explosions) {
if (exp.isDead()) {
exp.dispose();
explosions.remove(exp);
break;
}
}
}
if (gameStatus.equalsIgnoreCase(GameConstants.GAME_STATUS_RETURN))
return GameConstants.APPLICATION_MENU;
if (gameStatus.equalsIgnoreCase(GameConstants.GAME_STATUS_RETRY)) loadLevel(1);
if (gameStatus.equalsIgnoreCase(GameConstants.GAME_STATUS_INTRO)) {
intro_enemy_offset -= intro_speed;
intro_player_offset--;
if (intro_enemy_offset <= 0 && intro_player_offset <= 0) {
gameStatus = GameConstants.GAME_STATUS_INTRO_START;
intro_start_time = System.currentTimeMillis();
} else if (intro_enemy_offset < 0) {
intro_enemy_offset = 0;
} else if (intro_player_offset < 0) {
intro_player_offset = 0;
}
}
if (gameStatus.equalsIgnoreCase(GameConstants.GAME_STATUS_INTRO_START)) {
long current = System.currentTimeMillis();
if (current - intro_start_time >= 1000) {
startTime = System.currentTimeMillis();
gameStatus = GameConstants.GAME_STATUS_PLAYING;
}
}
if (gameStatus.equalsIgnoreCase(GameConstants.GAME_STATUS_OUTRO)) {
if (enemy_hero == null) {
selectEnemy();
outro_distance_x = enemy_hero.x - player1.x;
outro_distance_y = enemy_hero.y - player1.y;
} else {
if (calculateOverlap(enemy_hero, player1) || enemy_hero.y <= player1.y) {
gameStatus = GameConstants.GAME_STATUS_GAME_OVER;
}
enemy_hero.x -= outro_distance_x / outro_distance_y;
enemy_hero.y -= outro_distance_y / outro_distance_y;
}
}
return null;
}
