private void RenderSliceFromTarget(RenderDataForSlice renderData)
{
int _pixelsPerDegreeOfViewingAngleFromSourceBitmap = _target1.Width / _widthOfViewingArcInDegrees;
var sourceRectangle1 = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * ViewingField.Width), 0, _pixelsPerDegreeOfViewingAngleFromSourceBitmap, ViewingField.Height);
Game1.SpriteBatch.Draw(_target1, renderData.DestinationRectangle, sourceRectangle1, Color.White);
}
private void CalculateRenderData()
{
float halfWidthOfViewingArcInDegrees = _widthOfViewingArcInDegrees / 2;
float absoluteAngleOfLeftMostPeripheralVision = Player.ViewingAngle - halfWidthOfViewingArcInDegrees;
for (int pixel = 0; pixel < ViewingField.Width; pixel++)
{
var realAngle = absoluteAngleOfLeftMostPeripheralVision + degreePerPixel * pixel;
var angleFromCenter = Math.Abs(Player.ViewingAngle - realAngle);
CollisionInfo?collisionPosition = Tiles.GetCollisionPointImproved(Player.Position, realAngle, 100);
if (!collisionPosition.HasValue)
{
CompleteRenderData[pixel] = null;
continue;
}
var adjustedDistanceToCollision = collisionPosition.Value.DistanceToCollision * fisheyeCompensations[pixel];
var destinationHeight = ViewingField.Height / adjustedDistanceToCollision;
float percentageOfWidth = pixel / _widthOfViewingArcInDegrees;
var destinationRectangle = new Rectangle(pixel, (int)(Math.Floor((ViewingField.Height - destinationHeight) / 2)),
1, (int)destinationHeight);
CompleteRenderData[pixel] = new RenderDataForSlice()
{
CollisionInfo = collisionPosition.Value, DestinationRectangle = destinationRectangle
};
}
}
private void RenderWhiteSlice(RenderDataForSlice renderData)
{
var sourceRectangle1 = new Rectangle(0, 0, 1, 1);
float maxDistance = 7;
float opacity = (1 - (float)(renderData.CollisionInfo.Value.DistanceToCollision / maxDistance));
Game1.SpriteBatch.Draw(_white, renderData.DestinationRectangle, sourceRectangle1, Color.White * opacity);
}
private void RenderSliceForSynchronizedSlideShow(RenderDataForSlice renderData)
{
int textureIndex1 = _slideIndex;
textureIndex1 %= CurrentTextureSet.Length;
int textureIndex2 = (textureIndex1 + 1) % CurrentTextureSet.Length;
RenderSliceForSlideShow(renderData, textureIndex1, textureIndex2);
}
private void RenderSliceForIndividualSlideShow(RenderDataForSlice renderData)
{
int textureIndex1 = renderData.CollisionInfo.Value.TileHitValue - 1 + _slideIndex;
textureIndex1 %= CurrentTextureSet.Length;
int textureIndex2 = (textureIndex1 + 1) % CurrentTextureSet.Length;
RenderSliceForSlideShow(renderData, textureIndex1, textureIndex2);
}
private void RenderSlice(RenderDataForSlice renderData)
{
//TODO: find out whether sharper viewing angle should result in thinner sourceRectangles
//for optimal rendering?
int textureIndex1 = renderData.CollisionInfo.Value.TileHitValue - 1;
textureIndex1 %= CurrentTextureSet.Length;
int _pixelsPerDegreeOfViewingAngleFromSourceBitmap = CurrentTextureSet[textureIndex1].CurrentTexture.Width / _widthOfViewingArcInDegrees;
var sourceRectangle1 = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * CurrentTextureSet[textureIndex1].CurrentTexture.Width), 0, _pixelsPerDegreeOfViewingAngleFromSourceBitmap, CurrentTextureSet[textureIndex1].CurrentTexture.Height);
Game1.SpriteBatch.Draw(CurrentTextureSet[textureIndex1].CurrentTexture, renderData.DestinationRectangle, sourceRectangle1, Color.White);
}
private void RenderSliceWithDistanceBasedLighting(RenderDataForSlice renderData)
{
int textureIndex1 = renderData.CollisionInfo.Value.TileHitValue - 1;
textureIndex1 %= CurrentTextureSet.Length;
int _pixelsPerDegreeOfViewingAngleFromSourceBitmap = CurrentTextureSet[textureIndex1].CurrentTexture.Width / _widthOfViewingArcInDegrees;
var sourceRectangle1 = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * CurrentTextureSet[textureIndex1].CurrentTexture.Width), 0, _pixelsPerDegreeOfViewingAngleFromSourceBitmap, CurrentTextureSet[textureIndex1].CurrentTexture.Height);
float maxDistance = 7;
float opacity = 0;
if (renderData.CollisionInfo.Value.DistanceToCollision < maxDistance)
{
opacity = 1 - (float)Math.Pow((float)(renderData.CollisionInfo.Value.DistanceToCollision / maxDistance), 2);
}
Game1.SpriteBatch.Draw(CurrentTextureSet[textureIndex1].CurrentTexture, renderData.DestinationRectangle, sourceRectangle1, Color.White * opacity);
}
private void RenderSliceForSlideShow(RenderDataForSlice renderData, int textureIndex1, int textureIndex2)
{
int _pixelsPerDegreeOfViewingAngleFromSourceBitmap1 = CurrentTextureSet[textureIndex1].CurrentTexture.Width / _widthOfViewingArcInDegrees;
int _pixelsPerDegreeOfViewingAngleFromSourceBitmap2 = CurrentTextureSet[textureIndex2].CurrentTexture.Width / _widthOfViewingArcInDegrees;
var sourceRectangle1 = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * CurrentTextureSet[textureIndex1].CurrentTexture.Width), 0, _pixelsPerDegreeOfViewingAngleFromSourceBitmap1, CurrentTextureSet[textureIndex1].CurrentTexture.Height);
var sourceRectangle2 = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * CurrentTextureSet[textureIndex2].CurrentTexture.Width), 0, _pixelsPerDegreeOfViewingAngleFromSourceBitmap2, CurrentTextureSet[textureIndex2].CurrentTexture.Height);
float transparency = _msForNextSlide / _msBetweenSlides;
transparency = QuinticEaseInOut(transparency);
float maxDistance = 7;
float opacity = (1 - (float)(renderData.CollisionInfo.Value.DistanceToCollision / maxDistance));
Game1.SpriteBatch.Draw(CurrentTextureSet[textureIndex1].CurrentTexture, renderData.DestinationRectangle, sourceRectangle1, Color.White);
Game1.SpriteBatch.Draw(CurrentTextureSet[textureIndex2].CurrentTexture, renderData.DestinationRectangle, sourceRectangle2, Color.White * (1 - transparency));
}
private void RenderSliceWithGlide(RenderDataForSlice renderData)
{
int textureIndex1 = renderData.CollisionInfo.Value.TileHitValue - 1;
textureIndex1 %= CurrentTextureSet.Length;
int _pixelsPerDegreeOfViewingAngleFromSourceBitmap = CurrentTextureSet[textureIndex1].CurrentTexture.Width / _widthOfViewingArcInDegrees;
var currentTexture = CurrentTextureSet[textureIndex1].CurrentTexture;
Rectangle source;
float offset = _msForNextSlide / _msBetweenSlides;
offset = QuinticEaseInOut((float)Math.Abs(offset * 2 - 1));
if (currentTexture.Width > currentTexture.Height)
{
float lengthToGlide = currentTexture.Width - currentTexture.Height;
source = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * currentTexture.Height + offset * lengthToGlide), 0, _pixelsPerDegreeOfViewingAngleFromSourceBitmap, currentTexture.Height);
}
else
{
float lengthToGlide = currentTexture.Height - currentTexture.Width;
source = new Rectangle((int)(renderData.CollisionInfo.Value.PositionOnWall * currentTexture.Width), (int)(offset * lengthToGlide), _pixelsPerDegreeOfViewingAngleFromSourceBitmap, currentTexture.Width);
}
Game1.SpriteBatch.Draw(CurrentTextureSet[textureIndex1].CurrentTexture, renderData.DestinationRectangle, source, Color.White);
}