public override void Update(float deltaTime)
{
foreach (Entity e in getApplicableEntities())
{
//Grab needed components
SimpleEnemyComponent simpEnemyComp = ( SimpleEnemyComponent )e.getComponent(GlobalVars.SIMPLE_ENEMY_COMPONENT_NAME);
VelocityComponent velComp = ( VelocityComponent )e.getComponent(GlobalVars.VELOCITY_COMPONENT_NAME);
float speedyBuffer = 0;
if (!simpEnemyComp.checkCliff && simpEnemyComp.checkCliffOrig && Math.Abs(velComp.x) <= Math.Abs(simpEnemyComp.mySpeed + speedyBuffer))
{
simpEnemyComp.checkCliff = simpEnemyComp.checkCliffOrig;
}
if (simpEnemyComp.hasRunOnce && !simpEnemyComp.hasLandedOnce && velComp.y <= 0)
{
simpEnemyComp.hasLandedOnce = true;
}
if (velComp.x < 0)
{
simpEnemyComp.movingLeft = true;
simpEnemyComp.wasStoppedLastFrame = false;
}
else if (velComp.x > 0)
{
simpEnemyComp.movingLeft = false;
simpEnemyComp.wasStoppedLastFrame = false;
}
else if (velComp.x == 0 && velComp.y == 0 && simpEnemyComp.hasLandedOnce) //If it's been stopped for more than one frame, try changing the direction and see if it can move that way instead.
{
float newVel = simpEnemyComp.mySpeed;
if (!simpEnemyComp.movingLeft)
{
newVel *= -1;
}
if (simpEnemyComp.wasStoppedLastFrame)
{
velComp.x = newVel;
}
simpEnemyComp.wasStoppedLastFrame = true;
}
//Change position if it's about to fall off a cliff, and checkCliff is true.
if (simpEnemyComp.hasLandedOnce && velComp.y == 0 && simpEnemyComp.checkCliff)
{
PositionComponent posComp = ( PositionComponent )e.getComponent(GlobalVars.POSITION_COMPONENT_NAME);
ColliderComponent colComp = ( ColliderComponent )e.getComponent(GlobalVars.COLLIDER_COMPONENT_NAME);
//Separated out for easy changing.
float e1X = posComp.x;
float e1Y = posComp.y;
float e1Width = colComp.width;
float e1Height = colComp.height;
//Center width/height values
if (e1Width != posComp.width)
{
float diff = (posComp.width - e1Width);
e1X += diff / 2;
}
if (e1Height != posComp.height)
{
float diff = (posComp.height - e1Height);
e1Y += diff / 2;
}
List <Entity> collisionsAheadAndBelow = level.getCollisionSystem().findObjectAtPoint(e1X + getSign(velComp.x) * (e1Width / 2 + 1), e1Y + e1Height / 2 + 1);
//Remove spikes from the collisions
List <Entity> entsToRemove = new List <Entity>();
foreach (Entity ent in collisionsAheadAndBelow)
{
if (ent is SpikeEntity)
{
entsToRemove.Add(ent);
}
}
foreach (Entity ent in entsToRemove)
{
collisionsAheadAndBelow.Remove(ent);
}
if (collisionsAheadAndBelow.Count <= 0)
{
velComp.x = -velComp.x;
}
//If there are any bounced bullets, decrease their timer - remove if it's been enough time since bounce.
if (simpEnemyComp.bouncedBullets.Count > 0)
{
List <Entity> toRemove = simpEnemyComp.bouncedBullets.Keys.ToList <Entity>();
foreach (Entity bullet in toRemove)
{
simpEnemyComp.bouncedBullets[bullet] -= deltaTime;
if (simpEnemyComp.bouncedBullets[bullet] < 0)
{
simpEnemyComp.bouncedBullets.Remove(bullet);
}
}
}
}
//Face the right way
if (e is SimpleEnemyEntity)
{
SimpleEnemyEntity enemy = ( SimpleEnemyEntity )e;
if (velComp.x > 0 && !enemy.isLookingRight())
{
enemy.faceRight();
}
if (velComp.x < 0 && !enemy.isLookingLeft())
{
enemy.faceLeft();
}
}
else if (e is FlyingEnemyEntity)
{
FlyingEnemyEntity enemy = ( FlyingEnemyEntity )e;
if (velComp.x > 0 && !enemy.isLookingRight())
{
enemy.faceRight();
}
if (velComp.x < 0 && !enemy.isLookingLeft())
{
enemy.faceLeft();
}
}
simpEnemyComp.hasRunOnce = true;
}
}
