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using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using MonoGame.Extended.TextureAtlases;
namespace Celesteia.Resources.Sprites {
public class SkyboxPortionFrames {
private readonly Vector2 _scaling;
private TextureAtlas _atlas;
private int _start;
private int _count;
private TextureRegion2D[] _frames;
private Color _color;
private float _depth;
public SkyboxPortionFrames(TextureAtlas atlas, int size, int startIndex, int frameCount) {
_atlas = atlas;
_start = startIndex;
_count = frameCount;
_scaling = new Vector2(ResourceManager.SPRITE_SCALING) / 2f;
_frames = new TextureRegion2D[frameCount];
for (int i = 0; i < frameCount; i++) {
_frames[i] = atlas.GetRegion(startIndex + i);
}
}
public SkyboxPortionFrames SetColor(Color color) {
_color = color;
return this;
}
public SkyboxPortionFrames SetDepth(float depth) {
_depth = depth;
return this;
}
private Vector2 GetOrigin(TextureRegion2D frame) {
return new Vector2(0.5f * frame.Width, 0.5f * frame.Height);
}
public void Draw(int index, SpriteBatch spriteBatch, Vector2 position, float rotation, Vector2 scale) {
spriteBatch.Draw(_frames[index % _frames.Length], position, _color, rotation, GetOrigin(_frames[index % _frames.Length]), scale * _scaling, SpriteEffects.None, _depth, null);
}
public SkyboxPortionFrames Clone() {
return new SkyboxPortionFrames(_atlas, 0, _start, _count).SetColor(_color).SetDepth(_depth);
}
}
}
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