/// <summary>
/// Renders a specified texture onto a RenderTexture or the GameScreen (if renderTarget is passed as null) at the
/// coordinates given using a specified blending mode.
/// </summary>
/// <param name="tex">The texture to draw</param>
/// <param name="dx">X coordinate on the renderTarget to draw to.</param>
/// <param name="dy">Y coordinate on the renderTarget to draw to.</param>
/// <param name="sx">X coordinate on the source texture to grab from.</param>
/// <param name="sy">Y coordinate on the source texture to grab from.</param>
/// <param name="w">Width of the texture part we are rendering.</param>
/// <param name="h">Height of the texture part we are rendering.</param>
/// <param name="renderTarget">>Where to draw to. If null it this will draw to the game screen.</param>
/// <param name="blendMode">Which blend mode to use when rendering</param>
public static void DrawGameTexture(
GameTexture tex,
float dx,
float dy,
float sx,
float sy,
float w,
float h,
GameRenderTexture renderTarget = null,
GameBlendModes blendMode = GameBlendModes.None,
GameShader shader = null,
float rotationDegrees = 0.0f,
bool drawImmediate = false
)
{
if (tex == null)
{
return;
}
Renderer.DrawTexture(
tex, sx, sy, w, h, dx, dy, w, h, Color.White, renderTarget, blendMode, shader, rotationDegrees, false,
drawImmediate
);
}
public abstract void DrawTexture(
GameTexture tex,
float sx,
float sy,
float sw,
float sh,
float tx,
float ty,
float tw,
float th,
Color renderColor,
GameRenderTexture renderTarget = null,
GameBlendModes blendMode = GameBlendModes.None,
GameShader shader = null,
float rotationDegrees = 0.0f,
bool isUi = false,
bool drawImmediate = false
);
//Rendering Functions
/// <summary>
/// Renders a specified texture onto a RenderTexture or the GameScreen (if renderTarget is passed as null) at the
/// coordinates given using a specified blending mode.
/// </summary>
/// <param name="tex">The texture to draw</param>
/// <param name="x">X coordinate on the render target to draw to</param>
/// <param name="y">Y coordinate on the render target to draw to</param>
/// <param name="renderTarget">Where to draw to. If null it this will draw to the game screen.</param>
/// <param name="blendMode">Which blend mode to use when rendering</param>
public static void DrawGameTexture(
GameTexture tex,
float x,
float y,
GameRenderTexture renderTarget = null,
GameBlendModes blendMode = GameBlendModes.None,
GameShader shader = null,
float rotationDegrees = 0.0f,
bool drawImmediate = false
)
{
var destRectangle = new FloatRect(x, y, tex.GetWidth(), tex.GetHeight());
var srcRectangle = new FloatRect(0, 0, tex.GetWidth(), tex.GetHeight());
DrawGameTexture(
tex, srcRectangle, destRectangle, Color.White, renderTarget, blendMode, shader, rotationDegrees,
drawImmediate
);
}
public static void DrawGameTexture(
GameTexture tex,
FloatRect srcRectangle,
FloatRect targetRect,
Color renderColor,
GameRenderTexture renderTarget = null,
GameBlendModes blendMode = GameBlendModes.None,
GameShader shader = null,
float rotationDegrees = 0.0f,
bool drawImmediate = false
)
{
if (tex == null)
{
return;
}
Renderer.DrawTexture(
tex, srcRectangle.X, srcRectangle.Y, srcRectangle.Width, srcRectangle.Height, targetRect.X,
targetRect.Y, targetRect.Width, targetRect.Height,
Color.FromArgb(renderColor.A, renderColor.R, renderColor.G, renderColor.B), renderTarget, blendMode,
shader, rotationDegrees, false, drawImmediate
);
}
public override void DrawTexture(
GameTexture tex,
float sx,
float sy,
float sw,
float sh,
float tx,
float ty,
float tw,
float th,
Color renderColor,
GameRenderTexture renderTarget = null,
GameBlendModes blendMode = GameBlendModes.None,
GameShader shader = null,
float rotationDegrees = 0,
bool isUi = false,
bool drawImmediate = false
)
{
var texture = tex?.GetTexture();
if (texture == null)
{
return;
}
var packRotated = false;
var pack = tex.GetTexturePackFrame();
if (pack != null)
{
if (pack.Rotated)
{
rotationDegrees -= 90;
var z = tw;
tw = th;
th = z;
z = sx;
sx = pack.Rect.Right - sy - sh;
sy = pack.Rect.Top + z;
z = sw;
sw = sh;
sh = z;
packRotated = true;
}
else
{
sx += pack.Rect.X;
sy += pack.Rect.Y;
}
}
var origin = Vector2.Zero;
if (Math.Abs(rotationDegrees) > 0.01)
{
rotationDegrees = (float)(Math.PI / 180 * rotationDegrees);
origin = new Vector2(sw / 2f, sh / 2f);
//TODO: Optimize in terms of memory AND performance.
var pnt = new Pointf(0, 0);
var pnt1 = new Pointf((float)tw, 0);
var pnt2 = new Pointf(0, (float)th);
var cntr = new Pointf((float)tw / 2, (float)th / 2);
var pntMod = Rotate(pnt, cntr, rotationDegrees);
var pntMod2 = Rotate(pnt1, cntr, rotationDegrees);
var pntMod3 = Rotate(pnt2, cntr, rotationDegrees);
var width = (int)Math.Round(GetDistance(pntMod.X, pntMod.Y, pntMod2.X, pntMod2.Y));
var height = (int)Math.Round(GetDistance(pntMod.X, pntMod.Y, pntMod3.X, pntMod3.Y));
if (packRotated)
{
var z = width;
width = height;
height = z;
}
tx += width / 2f;
ty += height / 2f;
}
if (renderTarget == null)
{
if (isUi)
{
tx += mCurrentView.X;
ty += mCurrentView.Y;
}
StartSpritebatch(mCurrentView, blendMode, shader, null, false, null, drawImmediate);
mSpriteBatch.Draw(
(Texture2D)texture, new Vector2(tx, ty), new XNARectangle((int)sx, (int)sy, (int)sw, (int)sh),
ConvertColor(renderColor), rotationDegrees, origin, new Vector2(tw / sw, th / sh),
SpriteEffects.None, 0
);
}
else
{
StartSpritebatch(
new FloatRect(0, 0, renderTarget.GetWidth(), renderTarget.GetHeight()), blendMode, shader,
renderTarget, false, null, drawImmediate
);
mSpriteBatch.Draw(
(Texture2D)texture, new Vector2(tx, ty), new XNARectangle((int)sx, (int)sy, (int)sw, (int)sh),
ConvertColor(renderColor), rotationDegrees, origin, new Vector2(tw / sw, th / sh),
SpriteEffects.None, 0
);
}
}
private void StartSpritebatch(
FloatRect view,
GameBlendModes mode = GameBlendModes.None,
GameShader shader = null,
GameRenderTexture target = null,
bool forced = false,
RasterizerState rs = null,
bool drawImmediate = false
)
{
var viewsDiff = view.X != mCurrentSpriteView.X ||
view.Y != mCurrentSpriteView.Y ||
view.Width != mCurrentSpriteView.Width ||
view.Height != mCurrentSpriteView.Height;
if (mode != mCurrentBlendmode ||
shader != mCurrentShader ||
shader != null && shader.ValuesChanged() ||
target != mCurrentTarget ||
viewsDiff ||
forced ||
drawImmediate ||
!mSpriteBatchBegan)
{
if (mSpriteBatchBegan)
{
mSpriteBatch.End();
}
if (target != null)
{
mGraphicsDevice?.SetRenderTarget((RenderTarget2D)target.GetTexture());
}
else
{
mGraphicsDevice?.SetRenderTarget(mScreenshotRenderTarget);
}
var blend = mNormalState;
Effect useEffect = null;
switch (mode)
{
case GameBlendModes.None:
blend = mNormalState;
break;
case GameBlendModes.Alpha:
blend = BlendState.AlphaBlend;
break;
case GameBlendModes.Multiply:
blend = mMultiplyState;
break;
case GameBlendModes.Add:
blend = BlendState.Additive;
break;
case GameBlendModes.Opaque:
blend = BlendState.Opaque;
break;
case GameBlendModes.Cutout:
blend = mCutoutState;
break;
}
if (shader != null)
{
useEffect = (Effect)shader.GetShader();
shader.ResetChanged();
}
mSpriteBatch.Begin(
drawImmediate ? SpriteSortMode.Immediate : SpriteSortMode.Deferred, blend, SamplerState.PointClamp,
null, rs, useEffect,
Matrix.CreateRotationZ(0f) *
Matrix.CreateScale(new Vector3(1, 1, 1)) *
Matrix.CreateTranslation(-view.X, -view.Y, 0)
);
mCurrentSpriteView = view;
mCurrentBlendmode = mode;
mCurrentShader = shader;
mCurrentTarget = target;
mSpriteBatchBegan = true;
}
}
