public void FireProjectile(Weapon weapon, Ship source, Ship target, float damage, Vector2 positionOffset)
{
var newProjectile = Projectiles.New();
newProjectile.SetType(weapon.ProjectileType, source);
newProjectile.TargetType = target.TargetType;
newProjectile.Damage = damage;
newProjectile.Position = source.Position + positionOffset + new Vector2(WorldData.RNG.Next(-25, 25), WorldData.RNG.Next(-25, 25));
newProjectile.IsPlayerProjectile = source.IsPlayerShip;
newProjectile.CenterOrigin();
newProjectile.TargetRotation = AIHelper.GetAngleToTarget(newProjectile.Position, source.Rotation, target.Position);
if (newProjectile.TurnSpeed == 0)
{
// todo : lead target for non missiles
newProjectile.Rotation = newProjectile.TargetRotation;
}
else
{
newProjectile.Rotation = source.Rotation;
newProjectile.Target = target;
newProjectile.TargetRotation = AIHelper.GetAngleToTarget(newProjectile.Position, newProjectile.Rotation, newProjectile.Target.Position);
}
if (newProjectile.TurnSpeed == 0)
{
var camPos = GameplayState.Camera.GetPosition() + GameplayState.Camera.GetOrigin();
var viewDistance = GameplayState.Graphics.PresentationParameters.BackBufferWidth / GameplayState.Camera.Zoom;
var distance = Vector2.Distance(newProjectile.Position, camPos);
if (distance < viewDistance)
{
ModManager.Instance.SoundManager.PlaySound("SFXLaser", (int)SoundType.SoundEffect, false, true, 0.5f);
}
}
}
public float GetAngleToTarget(Vector2 target)
{
return(AIHelper.GetAngleToTarget(Position, Rotation, target));
}
public void Update(GameTime gameTime)
{
for (var i = 0; i <= Projectiles.LastActiveIndex; i++)
{
var projectile = Projectiles[i];
projectile.Lifetime -= (float)gameTime.ElapsedGameTime.TotalMilliseconds;
if (projectile.Lifetime <= 0)
{
DeadProjectiles.Add(projectile);
continue;
}
}
for (var i = 0; i < DeadProjectiles.Count; i++)
{
var projectile = DeadProjectiles[i];
if (projectile.DeathType == ProjectileDeathType.Explosion)
{
GameplayState.EffectsManager.AddExplosion(projectile);
var camPos = GameplayState.Camera.GetPosition() + GameplayState.Camera.GetOrigin();
var viewDistance = GameplayState.Graphics.PresentationParameters.BackBufferWidth / GameplayState.Camera.Zoom;
var distance = Vector2.Distance(projectile.Position, camPos);
if (distance < viewDistance)
{
ModManager.Instance.SoundManager.PlaySound("SFXImpact", (int)SoundType.SoundEffect, false, true);
}
}
Projectiles.Delete(projectile);
}
DeadProjectiles.Clear();
for (var i = 0; i <= Projectiles.LastActiveIndex; i++)
{
var projectile = Projectiles[i];
if (projectile.Target != null && projectile.TurnSpeed > 0)
{
projectile.TargetRotation = AIHelper.GetAngleToTarget(projectile.Position, projectile.Rotation, projectile.Target.Position);
}
projectile.ApplyMovement(gameTime);
var checkList = GameplayState.WorldManager.PlayerShips;
if (projectile.IsPlayerProjectile)
{
checkList = GameplayState.WorldManager.EnemyShips;
}
bool collision = false;
// todo : raycasting for better collisions
for (var s = 0; s < checkList.Count && !collision; s++)
{
var target = checkList[s];
if (target.TargetType != projectile.TargetType)
{
continue;
}
if (target.IsShieldActive)
{
collision = Vector2.Distance(projectile.Position, target.Position) <= target.ShieldRadius;
}
else
{
collision = Vector2.Distance(projectile.Position, target.Position) <= (target.ShieldRadius * 0.8f);
}
if (collision)
{
target.TakeDamage(projectile.Damage);
DeadProjectiles.Add(projectile);
DeadProjectileAnchors.Add(target);
}
}
}
for (var i = 0; i < DeadProjectiles.Count; i++)
{
var projectile = DeadProjectiles[i];
var anchor = DeadProjectileAnchors[i];
if (projectile.DeathType == ProjectileDeathType.Explosion)
{
GameplayState.EffectsManager.AddExplosion(projectile, anchor, 4.0f);
var camPos = GameplayState.Camera.GetPosition() + GameplayState.Camera.GetOrigin();
var viewDistance = GameplayState.Graphics.PresentationParameters.BackBufferWidth / GameplayState.Camera.Zoom;
var distance = Vector2.Distance(projectile.Position, camPos);
if (distance < viewDistance)
{
ModManager.Instance.SoundManager.PlaySound("SFXImpact", (int)SoundType.SoundEffect, false, true);
}
}
else
{
GameplayState.EffectsManager.AddExplosion(projectile, Color.Cyan, anchor, 1.5f, 800.0f);
}
Projectiles.Delete(projectile);
}
DeadProjectiles.Clear();
DeadProjectileAnchors.Clear();
}