Files
crtr/Assets/Cryville/Crtr/SpriteFrame.cs
2022-11-21 18:16:12 +08:00

110 lines
2.6 KiB
C#

using System;
using UnityEngine;
namespace Cryville.Crtr {
public class SpriteFrame {
#pragma warning disable IDE1006
Rect _frame;
public Rect frame {
get { return _frame; }
set { _frame = value; }
}
public Rect textureRect {
get { return _frame; }
set { _frame = value; }
}
bool _rotated = false;
public bool rotated {
get { return _rotated; }
set { _rotated = value; }
}
public bool textureRotated {
get { return _rotated; }
set { _rotated = value; }
}
#pragma warning restore IDE1006
public Vector2 offset;
public Rect sourceColorRect;
public Vector2 sourceSize;
private Rect _uv;
private Vector2[] cuv;
public Rect UV {
get {
return _uv;
}
private set {
_uv = value;
float x0 = Mathf.Min(_uv.xMin, _uv.xMax);
float x1 = Mathf.Max(_uv.xMin, _uv.xMax);
float y0 = Mathf.Min(_uv.yMin, _uv.yMax);
float y1 = Mathf.Max(_uv.yMin, _uv.yMax);
if (_rotated) cuv = new Vector2[]{
new Vector2(x0, y1),
new Vector2(x1, y0),
new Vector2(x0, y0),
new Vector2(x1, y1),
};
else cuv = new Vector2[]{
new Vector2(x0, y0),
new Vector2(x1, y1),
new Vector2(x1, y0),
new Vector2(x0, y1),
};
}
}
public Vector2 GetUV(Vector2 uv) {
return GetUV(uv.x, uv.y);
}
public Vector2 GetUV(float u, float v) {
Vector2 uv00 = cuv[0], uv11 = cuv[1],
uv10 = cuv[2], uv01 = cuv[3];
return (1 - u - v) * uv00
+ u * uv10
+ v * uv01
+ u * v * (uv00 + uv11 - uv10 - uv01);
}
public Texture2D Texture {
get;
private set;
}
public Vector2 Size {
get {
return new Vector2(Texture.width, Texture.height);
}
}
public void Init() {
if (Texture == null)
throw new InvalidOperationException("Missing texture");
_frame = new Rect(Vector2.zero, Size);
var w = _frame.width;
var h = _frame.height;
float x = _frame.x / w;
float y = 1 - _frame.y / h;
float tw = (_rotated ? _frame.height : _frame.width) / w;
float th = (_rotated ? _frame.width : _frame.height) / h;
if (_rotated) UV = new Rect(x, y, tw, -th);
else UV = new Rect(x, y, tw, -th);
}
public void Init(int w, int h, Texture2D _base) {
if (Texture != null)
throw new InvalidOperationException("Missing texture");
Texture = _base;
float x = _frame.x / w;
float y = 1 - _frame.y / h;
float tw = (_rotated ? _frame.height : _frame.width) / w;
float th = (_rotated ? _frame.width : _frame.height) / h;
if (_rotated) UV = new Rect(x, y, tw, -th);
else UV = new Rect(x, y, tw, -th);
}
public SpriteFrame() { }
public SpriteFrame(Texture2D tex) {
Texture = tex;
}
}
}