public bool AllocReal(int w, int h, out TexRect output)
{
for (int i=0;i<m_free.Count;i++)
{
TexRect c = m_free[i];
int fw = c.u1 - c.u0;
int fh = c.v1 - c.v0;
if (fw >= w && fh >= h)
{
output = new TexRect(c.u0, c.v0, c.u0 + w, c.v0 + h);
output._u0 = (float)output.u0 / (float)m_texture.width;
output._v0 = 1.0f - (float)output.v0 / (float)m_texture.height;
output._u1 = (float)output.u1 / (float)m_texture.width;
output._v1 = 1.0f - (float)output.v1 / (float)m_texture.height;
TexRect rhs = new TexRect(c.u0 + w, c.v0, c.u1, c.v1);
TexRect bottom = new TexRect(c.u0, c.v0 + h, c.u0 + w, c.v1);
m_free.RemoveAt(i);
m_free.Add(rhs);
m_free.Add(bottom);
return true;
}
}
output = new TexRect(0,0,0,0);
return false;
}
void Start()
{
meshFilter = GetComponent <MeshFilter>();
mesh = new Mesh();
mesh.MarkDynamic();
mesh.vertices = verts;
mesh.triangles = tris;
mesh.uv = uvs;
mesh.bounds = new Bounds(Vector3.zero, new Vector3(float.MaxValue, float.MaxValue, float.MaxValue));
meshFilter.mesh = mesh;
camera = Camera.main.transform;
int width = Mathf.Max(blusterTex.width, rocketTex.width);
texAtlas = new Texture2D(width, blusterTex.height + rocketTex.height);
texAtlas.SetPixels(0, 0, width, blusterTex.height, blusterTex.GetPixels());
texAtlas.SetPixels(0, blusterTex.height, width, rocketTex.height, rocketTex.GetPixels());
texAtlas.Apply();
atlasMap = new TexRect[2];
atlasMap[0] = new TexRect();
atlasMap[1] = new TexRect();
atlasMap[0].leftTop = Vector2.zero;
atlasMap[0].leftBot = new Vector2(0, ((float)blusterTex.height) / texAtlas.height);
atlasMap[0].rightTop = new Vector2(((float)blusterTex.width) / texAtlas.width, 0);
atlasMap[0].rightBot = new Vector2(((float)blusterTex.width) / texAtlas.width, ((float)blusterTex.height) / texAtlas.height);
atlasMap[1].leftTop = new Vector2(0, ((float)blusterTex.height) / texAtlas.height);
atlasMap[1].leftBot = new Vector2(0, ((float)(blusterTex.height + rocketTex.height)) / texAtlas.height);
atlasMap[1].rightTop = new Vector2(((float)rocketTex.width) / texAtlas.width, ((float)blusterTex.height) / texAtlas.height);
atlasMap[1].rightBot = new Vector2(((float)rocketTex.width) / texAtlas.width, ((float)(blusterTex.height + rocketTex.height)) / texAtlas.height);
GetComponent <MeshRenderer>().material.mainTexture = texAtlas;
}
public bool Alloc(int w, int h, out TexRect output)
{
int mod = 4;
int widthRounded = mod * ((w + mod - 1) / mod);
int padw = widthRounded - w;
if (AllocReal(w + padw + 2, h + 2, out output))
{
float adjw = (1.0f) / (float)m_texture.width;
float adjh = 1.0f / (float)m_texture.height;
output._u0 += adjw;
output._u1 -= adjw + padw / (float)m_texture.width;
output._v0 -= adjh;
output._v1 += adjh;
output.u0 += 1;
output.v0 += 1;
output.u1 -= 1 + padw;
output.v1 -= 1;
return true;
}
return false;
}
public void SetPixels(TexRect where, Color[] array)
{
m_texture.SetPixels(where.u0, where.v0, where.u1 - where.u0, where.v1 - where.v0, array, 0);
m_texture.Apply();
}
public void Clear()
{
TexRect f = new TexRect(0, 0, m_texture.width, m_texture.height);
m_free.Add(f);
}
public override void SetTextures(TextureAtlas atlas)
{
uvRect = atlas.GetRect(tex);
}
public override void SetTextures(TextureAtlas atlas)
{
uvRocket = atlas.GetRect(rocketTexture);
uvTrail = atlas.GetRect(trailTexture);
}