public void Draw(Duality.Drawing.IDrawDevice device)
{
// Find out about the into-camera-space transformation at the object's position
this.posTemp = device.RefCoord;
this.posTemp.Z = Z;
this.scaleTemp = 1.0f;
device.PreprocessCoords(ref this.posTemp, ref this.scaleTemp);
// Define the rect we're going to render
backgroundSize = device.TargetSize / this.scaleTemp;
backgroundSize.X = backgroundSize.Y = MathF.Max(backgroundSize.X, backgroundSize.Y);
Rect rectTemp = new Rect(backgroundSize * 2).WithOffset(-backgroundSize);
this.topLeft = rectTemp.TopLeft;
this.bottomLeft = rectTemp.BottomLeft;
this.bottomRight = rectTemp.BottomRight;
this.topRight = rectTemp.TopRight;
// Apply object rotation and (object + perspective) scale
Vector2 xDot, yDot;
MathF.GetTransformDotVec(0, scaleTemp, out xDot, out yDot);
MathF.TransformDotVec(ref this.topLeft, ref xDot, ref yDot);
MathF.TransformDotVec(ref this.bottomLeft, ref xDot, ref yDot);
MathF.TransformDotVec(ref this.bottomRight, ref xDot, ref yDot);
MathF.TransformDotVec(ref this.topRight, ref xDot, ref yDot);
// Define vertices. Note how we completely ignore the XY position from PreprocessCoords above.
// We just render out rect as we intended. It floats around as if stuck on the screen.
uvDelta = (device.RefCoord.Xy - lastPosition) / (backgroundSize) * device.GetScaleAtZ(Z);
this.vertices[0].Pos.Xy = this.topLeft;
this.vertices[0].Pos.Z = this.posTemp.Z;
this.vertices[0].TexCoord += this.uvDelta;
this.vertices[0].Color = this.ColorTint;
this.vertices[1].Pos.Xy = this.bottomLeft;
this.vertices[1].Pos.Z = this.posTemp.Z;
this.vertices[1].TexCoord += this.uvDelta;
this.vertices[1].Color = this.ColorTint;
this.vertices[2].Pos.Xy = this.bottomRight;
this.vertices[2].Pos.Z = this.posTemp.Z;
this.vertices[2].TexCoord += this.uvDelta;
this.vertices[2].Color = this.ColorTint;
this.vertices[3].Pos.Xy = this.topRight;
this.vertices[3].Pos.Z = this.posTemp.Z;
this.vertices[3].TexCoord += this.uvDelta;
this.vertices[3].Color = this.ColorTint;
device.AddVertices(Material.Checkerboard, VertexMode.Quads, this.vertices);
this.lastPosition = device.RefCoord.Xy;
}
public void Draw(Duality.Drawing.IDrawDevice device)
{
// Find out about the into-camera-space transformation at the object's position
this.posTemp = this.transform.Pos;
// Vertical or Both
if (this.Scrolling != ScrollingMode.Horiziontal)
{
this.posTemp.Y = device.RefCoord.Y;
}
// Horizontal or Both
if (this.Scrolling != ScrollingMode.Vertical)
{
this.posTemp.X = device.RefCoord.X;
}
this.scaleTemp = 1.0f;
device.PreprocessCoords(ref this.posTemp, ref this.scaleTemp);
Vector2 textureSize = Vector2.One;
Vector2 uvSize = Vector2.Zero;
if (this.CustomMaterial.IsAvailable)
{
textureSize = this.CustomMaterial.Res.MainTexture.Res.Size;
uvSize = this.CustomMaterial.Res.MainTexture.Res.UVRatio;
}
else
{
textureSize = this.SharedMaterial.Res.MainTexture.Res.Size;
uvSize = this.SharedMaterial.Res.MainTexture.Res.UVRatio;
}
// How big will the texture appear on screen
Vector2 textureScaled = textureSize * this.transform.Scale * this.scaleTemp;
// and how much will we have to scale it to make it fill the screen
Vector2 textureScale = device.TargetSize / textureScaled;
// Multiply by 2 to be sure that the sprite doesn't end exactly on the side of the screen
// (for rotation purposes)
if (this.Scrolling != ScrollingMode.Horiziontal)
{
textureSize.Y *= textureScale.Y * 2;
}
if (this.Scrolling != ScrollingMode.Vertical)
{
textureSize.X *= textureScale.X * 2;
}
Rect rectTemp = new Rect(textureSize).WithOffset(-textureSize / 2);
this.topLeft = rectTemp.TopLeft;
this.bottomLeft = rectTemp.BottomLeft;
this.bottomRight = rectTemp.BottomRight;
this.topRight = rectTemp.TopRight;
// Calculate the "actual" texture size on screen
textureSize *= this.transform.Scale * this.scaleTemp;
this.uvDelta = uvSize / textureScaled;
uvSize *= textureSize / textureScaled;
uvDelta *= (device.RefCoord.Xy - this.Offset);
if (this.Scrolling == ScrollingMode.Horiziontal)
{
this.uvDelta.Y = 0;
}
if (this.Scrolling == ScrollingMode.Vertical)
{
this.uvDelta.X = 0;
}
Rect uvRect = new Rect(uvSize).WithOffset(-uvSize / 2);
if (this.Scrolling == ScrollingMode.Horiziontal)
{
uvRect = uvRect.WithOffset(0, uvSize.Y / 2);
}
if (this.Scrolling == ScrollingMode.Horiziontal)
{
uvRect = uvRect.WithOffset(uvSize.X / 2, 0);
}
this.uvDelta *= this.transform.Scale * this.scaleTemp * this.ScrollingMultiplier;
// Apply object rotation and (object + perspective) scale
Vector2 xDot, yDot;
MathF.GetTransformDotVec(this.transform.Angle, this.transform.Scale * this.scaleTemp, out xDot, out yDot);
MathF.TransformDotVec(ref this.topLeft, ref xDot, ref yDot);
MathF.TransformDotVec(ref this.bottomLeft, ref xDot, ref yDot);
MathF.TransformDotVec(ref this.bottomRight, ref xDot, ref yDot);
MathF.TransformDotVec(ref this.topRight, ref xDot, ref yDot);
// Define vertices.
this.vertices[0].Pos.X = this.posTemp.X + this.topLeft.X;
this.vertices[0].Pos.Y = this.posTemp.Y + this.topLeft.Y;
this.vertices[0].Pos.Z = this.posTemp.Z;
this.vertices[0].TexCoord = uvRect.TopLeft + this.uvDelta;
this.vertices[0].Color = this.ColorTint;
this.vertices[1].Pos.X = this.posTemp.X + this.bottomLeft.X;
this.vertices[1].Pos.Y = this.posTemp.Y + this.bottomLeft.Y;
this.vertices[1].Pos.Z = this.posTemp.Z;
this.vertices[1].TexCoord = uvRect.BottomLeft + this.uvDelta;
this.vertices[1].Color = this.ColorTint;
this.vertices[2].Pos.X = this.posTemp.X + this.bottomRight.X;
this.vertices[2].Pos.Y = this.posTemp.Y + this.bottomRight.Y;
this.vertices[2].Pos.Z = this.posTemp.Z;
this.vertices[2].TexCoord = uvRect.BottomRight + this.uvDelta;
this.vertices[2].Color = this.ColorTint;
this.vertices[3].Pos.X = this.posTemp.X + this.topRight.X;
this.vertices[3].Pos.Y = this.posTemp.Y + this.topRight.Y;
this.vertices[3].Pos.Z = this.posTemp.Z;
this.vertices[3].TexCoord = uvRect.TopRight + this.uvDelta;
this.vertices[3].Color = this.ColorTint;
if (this.AlignToPixelGrid)
{
this.vertices[0].Pos.X = MathF.Round(this.vertices[0].Pos.X);
this.vertices[1].Pos.X = MathF.Round(this.vertices[1].Pos.X);
this.vertices[2].Pos.X = MathF.Round(this.vertices[2].Pos.X);
this.vertices[3].Pos.X = MathF.Round(this.vertices[3].Pos.X);
if (MathF.RoundToInt(device.TargetSize.X) != (MathF.RoundToInt(device.TargetSize.X) / 2) * 2)
{
this.vertices[0].Pos.X += 0.5f;
this.vertices[1].Pos.X += 0.5f;
this.vertices[2].Pos.X += 0.5f;
this.vertices[3].Pos.X += 0.5f;
}
this.vertices[0].Pos.Y = MathF.Round(this.vertices[0].Pos.Y);
this.vertices[1].Pos.Y = MathF.Round(this.vertices[1].Pos.Y);
this.vertices[2].Pos.Y = MathF.Round(this.vertices[2].Pos.Y);
this.vertices[3].Pos.Y = MathF.Round(this.vertices[3].Pos.Y);
if (MathF.RoundToInt(device.TargetSize.Y) != (MathF.RoundToInt(device.TargetSize.Y) / 2) * 2)
{
this.vertices[0].Pos.Y += 0.5f;
this.vertices[1].Pos.Y += 0.5f;
this.vertices[2].Pos.Y += 0.5f;
this.vertices[3].Pos.Y += 0.5f;
}
}
if (this.CustomMaterial.IsAvailable)
{
device.AddVertices(this.CustomMaterial, VertexMode.Quads, this.vertices);
}
else
{
device.AddVertices(this.SharedMaterial, VertexMode.Quads, this.vertices);
}
}