public UnityEngine.Rect ToRect(int pos)
{
if (_atlas != null)
{
return(_atlas.ToRect(pos));
}
return(default(UnityEngine.Rect));
}
private static void DrawFaceEditor(ref int face, OCAtlas atlas, ref UnityEngine.Matrix4x4 matrix)
{
UnityEngine.GUILayout.BeginVertical(UnityEngine.GUI.skin.box);
UnityEngine.Texture texture = atlas.Texture;
UnityEngine.Rect rect = UnityEngine.GUILayoutUtility.GetAspectRect((float)texture.width / texture.height);
UnityEngine.GUILayout.EndVertical();
UnityEngine.Matrix4x4 rectMatrix = UnityEngine.Matrix4x4.Scale(new UnityEngine.Vector3(rect.width, rect.height, 0)) * matrix;
UnityEngine.Matrix4x4 invRectMatrix = matrix.inverse * UnityEngine.Matrix4x4.Scale(new UnityEngine.Vector3(1 / rect.width, 1 / rect.height, 0));
UnityEngine.Matrix4x4 invertY = UnityEngine.Matrix4x4.TRS(new UnityEngine.Vector2(0, 1), UnityEngine.Quaternion.identity, new UnityEngine.Vector2(1, -1));
bool mouseInRect = rect.Contains(UnityEngine.Event.current.mousePosition);
UnityEngine.GUI.BeginGroup(rect);
{
UnityEngine.Vector2 mouse = invRectMatrix.MultiplyPoint(UnityEngine.Event.current.mousePosition); // local mouse [0..1]
if (UnityEngine.Event.current.type == UnityEngine.EventType.Repaint)
{
UnityEngine.Rect texturePosition = Mul(new UnityEngine.Rect(0, 0, 1, 1), rectMatrix);
UnityEngine.Rect faceRet = atlas.ToRect(face);
faceRet = Mul(faceRet, rectMatrix * invertY);
UnityEngine.GUI.DrawTexture(texturePosition, texture);
BlockEditorUtils.DrawRect(faceRet, UnityEngine.Color.green);
}
if (UnityEngine.Event.current.type == UnityEngine.EventType.MouseDown && UnityEngine.Event.current.button == 0 && mouseInRect)
{
UnityEngine.Vector2 invMouse = invertY.MultiplyPoint(mouse);
if (invMouse.x >= 0 && invMouse.x <= 1 && invMouse.y >= 0 && invMouse.y <= 1)
{
int posX = UnityEngine.Mathf.FloorToInt(invMouse.x * atlas.Width);
int posY = UnityEngine.Mathf.FloorToInt(invMouse.y * atlas.Height);
face = posY * atlas.Width + posX;
UnityEngine.GUI.changed = true;
UnityEngine.Event.current.Use();
}
}
if (UnityEngine.Event.current.type == UnityEngine.EventType.MouseDrag && UnityEngine.Event.current.button == 1 && mouseInRect)
{
UnityEngine.Vector3 delta = UnityEngine.Event.current.delta;
delta.x /= rect.width;
delta.y /= rect.height;
UnityEngine.Matrix4x4 offsetMatrix = UnityEngine.Matrix4x4.TRS(delta, UnityEngine.Quaternion.identity, UnityEngine.Vector3.one);
matrix = offsetMatrix * matrix;
UnityEngine.GUI.changed = true;
UnityEngine.Event.current.Use();
}
if (UnityEngine.Event.current.type == UnityEngine.EventType.ScrollWheel && mouseInRect)
{
float s = 0.95f;
if (UnityEngine.Event.current.delta.y < 0)
{
s = 1.0f / s;
}
UnityEngine.Matrix4x4 offsetMatrix = UnityEngine.Matrix4x4.TRS(mouse, UnityEngine.Quaternion.identity, UnityEngine.Vector3.one);
matrix *= offsetMatrix;
UnityEngine.Matrix4x4 scaleMatrix = UnityEngine.Matrix4x4.Scale(UnityEngine.Vector3.one * s);
matrix *= scaleMatrix;
offsetMatrix = UnityEngine.Matrix4x4.TRS(-mouse, UnityEngine.Quaternion.identity, UnityEngine.Vector3.one);
matrix *= offsetMatrix;
UnityEngine.GUI.changed = true;
UnityEngine.Event.current.Use();
}
}
UnityEngine.GUI.EndGroup();
}