public BasicEnemy(Vector2 pos, TextureInfo tex)
{
Position = pos;
sprite = new SpriteTile();
sprite.TextureInfo = tex;
sprite.Position = pos;
sprite.TileIndex2D = new Vector2i(0, 0);
sprite.CenterSprite(new Vector2(0.4f, 0.5f));
sprite.Scale = new Vector2(2.0f, 2.0f);
//set up the random vector
randomMovement = Support.rand.NextVector2(-0.01f, 0.01f);
//update the animation frames
sprite.Schedule((dt) => {
if (FrameCount % 2 == 0)
{
//if attacking,use all animation frames
if (attacking)
{
//deal damage to the player
if (FrameCount % damageDelay == 0)
{
Player.Instance.Health -= damage;
}
animationFrame = (animationFrame + 1) % 25;
}
else
{
//if not,then use first three animation frames
animationFrame = (animationFrame + 1) % 4;
}
//assign the correct tileindex
sprite.TileIndex1D = animationFrame;
//if close to the player,then follow,otherwise move randomly
if (Player.Instance.Position.Distance(sprite.Position) < 6.0f &&
Collisions.checkLineOfSight(this, Player.Instance))
{
isMovingRandomly = false;
step = (Player.Instance.Position - sprite.Position).Normalize() / 15.0f;
//check if should be attacking
if (Collisions.checkCollisionBetweenEntities(this, Player.Instance))
{
//check if is not attacking already
if (attacking == false)
{
attacking = true;
//manualy skip the frames
animationFrame = 4;
}
}
else
{
//make sure that attacking is set to false
attacking = false;
}
}
else
{
//player is not within range, move randomly
isMovingRandomly = true;
step = randomMovement;
}
}
//advance the position by the given Vector2 step
sprite.Position += step;
//only move when not attacking
if (!attacking)
{
//collision detection on the X axis
//create a vector 2 containing a proposed change to the position
Vector2 proposedChange = new Vector2(step.X, 0.0f) * speedModifier;
//temporary game entity to contain the entity the enemy might have collided with
GameEntity tempEntity;
//check wall collisions and then collisions with other enemies
if (!Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref proposedChange) && !Collisions.efficientCollisionsCheck(this, proposedChange, out tempEntity))
{
//no collision, so we can change the position
Position += proposedChange / speedModifier;
}
else if (isMovingRandomly)
{
//collided with something,but if the enemy should be moving randomly, then let it move
randomMovement.X = -randomMovement.X;
}
//collision detection on the Y axis
proposedChange = new Vector2(0.0f, step.Y) * speedModifier;
if (!Collisions.checkWallsCollisions(this, MapManager.Instance.currentMap, ref proposedChange) && !Collisions.efficientCollisionsCheck(this, proposedChange, out tempEntity))
{
Position += proposedChange / speedModifier;
}
else if (isMovingRandomly)
{
randomMovement.Y = -randomMovement.Y;
}
//position changed, so we need to remove the entity from the QuadTree and add again
//this is because the entity might be in the wrong place in the QuadTree and removing and re-adding is the only way to fix that
Game.Instance.quadTree.removeEntity(this);
Game.Instance.quadTree.insert(this);
}
//rotate the sprite to face the direction of walking
var angleInRadians = -FMath.Atan2(step.X, step.Y);
sprite.Rotation = new Vector2(FMath.Cos(angleInRadians), FMath.Sin(angleInRadians));
//correct for the fact that the sprite is rotated in the texture file
sprite.Rotation = sprite.Rotation.Rotate(90.0f);
}, -1);
//create a shadow texture - temporarily disabled
//SpriteUV shadow = new SpriteUV(new TextureInfo(Bullet.fireTexture));
//shadow.CenterSprite(new Vector2(0.5f,0.5f));
//shadow.Color = Sce.PlayStation.HighLevel.GameEngine2D.Base.Math.SetAlpha(Colors.Black,0.5f);
//calculate the bounds for the entire sprite
bounds = new Bounds2();
sprite.GetlContentLocalBounds(ref bounds);
bounds = new Bounds2(bounds.Min * 0.5f, bounds.Max * 0.5f);
}
