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using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using MonoGame.Extended.TextureAtlases;
namespace Celesteia.Resources.Sprites {
public class BlockFrames {
private readonly Vector2 _scaling;
private BlockFrame[] _frames;
private bool _doDraw;
public bool DoDraw => _doDraw;
public BlockFrames(TextureAtlas atlas, int startIndex, int frameCount, Vector2? origin = null) {
_doDraw = frameCount > 0;
_scaling = new Vector2(ResourceManager.SPRITE_SCALING);
_frames = new BlockFrame[frameCount];
for (int i = 0; i < frameCount; i++) {
_frames[i] = new BlockFrame(atlas.GetRegion(startIndex + i), _scaling, origin);
}
}
public BlockFrame GetFrame(int index) {
if (!_doDraw) return null;
return _frames[index % _frames.Length];
}
public BlockFrame GetProgressFrame(float progress) {
return GetFrame((int)MathF.Round(progress * (_frames.Length - 1)));
}
}
public class BlockFrame {
private TextureRegion2D _region;
private Vector2 _scaling;
private Vector2 _origin;
public BlockFrame(TextureRegion2D region, Vector2 scaling, Vector2? origin = null) {
_region = region;
_scaling = scaling;
_origin = origin.HasValue ? origin.Value : Vector2.Zero;
}
public void Draw(int index, SpriteBatch spriteBatch, Vector2 position, Color color, float depth = 0f)
=> spriteBatch.Draw(_region, position, color, 0f, _origin, _scaling, SpriteEffects.None, depth);
public TextureRegion2D GetRegion() => _region;
}
}
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