public void ClearLightningSprites()
{
while (LightningSpriteList.Count > 0)
{
SpriteManager.RemoveSprite(LightningSpriteList.Last());
}
}
void DoLastLightingSpriteResizeActivity()
{
var thisVector2 = new Vector2(this.X, this.Y);
var lengthPerSprite = Lightning_Stream_Anim[0].Texture.Width *
(Lightning_Stream_Anim[0].RightCoordinate -
Lightning_Stream_Anim[0].LeftCoordinate);
var thisToTarget = (LightningWeaponManager.LineEndpoint - thisVector2);
var spriteCountFloat = thisToTarget.Length() / lengthPerSprite;
var leftover = spriteCountFloat - (int)spriteCountFloat;
if (leftover != 0)
{
var lastSprite = LightningSpriteList.Last();
var animationFrameWidth = Lightning_Stream_Anim[0].RightCoordinate -
Lightning_Stream_Anim[0].LeftCoordinate;
lastSprite.RightTextureCoordinate = lastSprite.LeftTextureCoordinate +
animationFrameWidth * leftover;
var widthPerSprite = Lightning_Stream_Anim[0].Texture.Width *
(Lightning_Stream_Anim[0].RightCoordinate -
Lightning_Stream_Anim[0].LeftCoordinate);
var widthHalf = widthPerSprite / 2.0f;
int index = LightningSpriteList.Count - 1;
var leftOfPreviousSprite = widthPerSprite * index;
lastSprite.RelativeX = leftOfPreviousSprite + widthPerSprite * leftover / 2.0f;
}
}
public void UpdateLightningSprites()
{
Vector2 target = LightningWeaponManager.LineEndpoint;
var widthPerSprite = Lightning_Stream_Anim[0].Texture.Width *
(Lightning_Stream_Anim[0].RightCoordinate -
Lightning_Stream_Anim[0].LeftCoordinate);
var widthHalf = widthPerSprite / 2.0f;
var thisVector2 = new Vector2(this.X, this.Y);
var thisToTarget = (target - thisVector2);
var spriteCountFloat = thisToTarget.Length() / widthPerSprite;
var spriteCount = 1 + (int)spriteCountFloat;
while (LightningSpriteList.Count < spriteCount)
{
var sprite = SpriteManager.AddSprite(Lightning_Stream_Anim);
// eventually attach to the rotation object.
sprite.TextureScale = 1;
sprite.AttachTo(lightningAttachment);
if (LightningSpriteList.Count > 0)
{
sprite.TimeIntoAnimation = LightningSpriteList[0].TimeIntoAnimation;
}
LightningSpriteList.Add(sprite);
}
while (LightningSpriteList.Count > spriteCount)
{
SpriteManager.RemoveSprite(LightningSpriteList.Last());
}
for (int i = 0; i < LightningSpriteList.Count; i++)
{
var sprite = LightningSpriteList[i];
sprite.UpdateToCurrentAnimationFrame();
sprite.RelativeX = widthHalf + widthPerSprite * i;
}
lightningAttachment.RelativeRotationZ =
(float)Math.Atan2(thisToTarget.Y, thisToTarget.X);
LightningEndpointSprite.RelativeX = target.X - X;
LightningEndpointSprite.RelativeY = target.Y - Y;
DoLastLightingSpriteResizeActivity();
}