/// <summary>
/// position is top left of box.
/// </summary>
/// <param name="position"></param>
/// <param name="size"></param>
/// <param name="color"></param>
public ColorBox(Vector2 position, Vector2 size, Color4 color)
{
this.position = position;
this.size = size;
model = Matrix4.CreateTranslation(position.X, position.Y, 0);
Color = color;
float[] vertices = new float[]
{
0, 0,
0, size.Y,
size.X, 0,
size.X, size.Y
};
uint[] indices = new uint[]
{
0, 1, 2, 3
};
VBO vert = new VBO(), ind = new VBO();
vert.SetData(ref vertices, BufferUsageHint.StaticDraw);
ind.SetData(ref indices, BufferUsageHint.StaticDraw);
bufSet = new BufferSet();
bufSet.VertexBuffer = vert;
bufSet.IndexBuffer = ind;
bufSet.VertexSize = 2;
bufSet.DrawMode = BeginMode.TriangleStrip;
bufSet.SetDrawState(DrawStates.Vertex);
}
public Entity(Vector2 position, Vector2 size, Texture tex, Vector2 texScale, bool solid)
{
float x = size.X / 2.0f;
float y = size.Y / 2.0f;
float[] vertices =
{
-x, y,
-x, -y,
x, y,
x, -y
};
float[] texcoords =
{
0, 1,
0, 0,
1, 1,
1, 0
};
byte[] indices =
{
0, 1, 2, 3
};
if (texScale != Vector2.One)
{
for (int i = 0; i < texcoords.Length; i += 2)
{
texcoords[i] *= texScale.X;
texcoords[i + 1] *= texScale.Y;
}
}
VBO verts = new VBO(), texC = new VBO(), ind = new VBO();
verts.SetData(ref vertices, BufferUsageHint.StaticDraw);
texC.SetData(ref texcoords, BufferUsageHint.StaticDraw);
ind.SetData(ref indices, BufferUsageHint.StaticDraw);
buffers = new BufferSet();
buffers.VertexBuffer = verts;
buffers.VertexSize = 2;
buffers.TexCoordBuffer = texC;
buffers.TexCoordSize = 2;
buffers.IndexBuffer = ind;
buffers.DrawMode = BeginMode.TriangleStrip;
buffers.SetDrawState(DrawStates.Vertex | DrawStates.TexCoord);
this.size = size;
this.position = position;
this.tex = tex;
this.solid = solid;
Name = string.Empty;
Visible = true;
RebuildModelMatrix();
}
private static void ValidateBuffer(VBO buffer, string name)
{
if (buffer == null || !buffer.Exists)
throw new InvalidOperationException(name + " does not exist or has not been initialized properly.");
}