/** Convert a sprite into a renderable sprite */
public nSpriteMesh Convert(nSprite sprite)
{
nSpriteMesh rtn = null;
var exists = _cache.ContainsKey (sprite.Id);
if (sprite.Invalid || !exists)
rtn = CreateMesh (sprite, exists);
else
rtn = _cache [sprite.Id];
return rtn;
}
/** Build a new mesh for a sprite */
public nSpriteMesh CreateMesh(nSprite sprite, bool exists)
{
nSpriteMesh rtn = null;
if (!exists) {
var shader = Shader.Find("Custom/nPropShader");
rtn = new nSpriteMesh() {
Material = new Material(shader),
Mesh = new Mesh(),
Position = new Vector3(),
Scale = new Vector3()
};
/* setup default rotation to avoid errors */
rtn.Rotation = Quaternion.AngleAxis(sprite.Rotation, new Vector3(0, 0, 1f));
_cache[sprite.Id] = rtn;
}
else
rtn = _cache[sprite.Id];
UpdateMesh(rtn, sprite);
return rtn;
}
public nSpriteData(nSprite parent, nSpriteTags flag, int size)
{
_data = new float[size];
_parent = parent;
_flag = flag;
}
/** Rebuild parts of a mesh without creating a new one */
public void UpdateMesh(nSpriteMesh sm, nSprite sprite)
{
/* mesh, uvs, etc */
if ((sprite.Flags & nSpriteTags.POINTS) > 0) {
var verticies = new Vector3[4] {
new Vector3(sprite.Points [0], sprite.Points [1], sprite.Depth),
new Vector3(sprite.Points [2], sprite.Points [3], sprite.Depth),
new Vector3(sprite.Points [4], sprite.Points [5], sprite.Depth),
new Vector3(sprite.Points [6], sprite.Points [7], sprite.Depth)
};
sm.Mesh.vertices = verticies;
/* Must set triangles after verticies */
var triangles = new int[6] { 0, 1, 2, 0, 2, 3 };
sm.Mesh.triangles = triangles;
sm.Mesh.normals = new Vector3[4] {
new Vector3(0f, 0f, 1f),
new Vector3(0f, 0f, 1f),
new Vector3(0f, 0f, 1f),
new Vector3(0f, 0f, 1f)
};
}
if ((sprite.Flags & nSpriteTags.UV) > 0) {
var uvs = new UnityEngine.Vector2[4] {
new UnityEngine.Vector2(sprite.UV [0], sprite.UV [1]),
new UnityEngine.Vector2(sprite.UV [2], sprite.UV [3]),
new UnityEngine.Vector2(sprite.UV [4], sprite.UV [5]),
new UnityEngine.Vector2(sprite.UV [6], sprite.UV [7])
};
sm.Mesh.uv = uvs;
}
/* material */
if ((sprite.Flags & nSpriteTags.COLOR) > 0)
sm.Material.color = new Color(sprite.Color [0], sprite.Color [1], sprite.Color [2], sprite.Color [3]);
if ((sprite.Flags & nSpriteTags.TEXTURE) > 0)
sm.Material.mainTexture = sprite.Texture;
/* position */
if ((sprite.Flags & nSpriteTags.POSITION) > 0) {
sm.Position [0] = sprite.Position [0];
sm.Position [1] = sprite.Position [1];
}
if ((sprite.Flags & nSpriteTags.DEPTH) > 0) {
//sm.Position [2] = sprite.Depth;
sm.Mesh.vertices[0][2] = sprite.Depth;
sm.Mesh.vertices[1][2] = sprite.Depth;
sm.Mesh.vertices[2][2] = sprite.Depth;
sm.Mesh.vertices[3][2] = sprite.Depth;
}
/* position */
if ((sprite.Flags & nSpriteTags.SCALE) > 0) {
sm.Scale [0] = sprite.Scale [0];
sm.Scale [1] = sprite.Scale [1];
sm.Scale [2] = 1.0f;
}
/* rotation */
if ((sprite.Flags & nSpriteTags.ROTATION) > 0)
sm.Rotation = Quaternion.AngleAxis(sprite.Rotation, new Vector3(0, 0, 1f));
/* cache result */
sprite.Reset();
}
