public void SetPosition(PointF pos)
{
// fix float errors by rounding
pos.X = (float)Math.Round(pos.X, 3);
pos.Y = (float)Math.Round(pos.Y, 3);
Position = pos;
}
public void SetPositionWithValues()
{
var start = new PointF(0, 0);
var end = new PointF(5.1f, 3.66f);
Assert.AreEqual(start, _position.Position);
_position.SetPosition(5.1f, 3.66f);
Assert.AreEqual(end, _position.Position);
}
public void Offset()
{
var start = new PointF(0, 0);
var end = new PointF(5.1f, 3.66f);
Assert.AreEqual(start, _position.Position);
_position.Offset(2.4f, 1.92f);
_position.Offset(2.7f, 1.74f);
Assert.AreEqual(end.X, _position.Position.X, 0.00001);
Assert.AreEqual(end.Y, _position.Position.Y, 0.00001);
}
public override void BeginScroll(ScreenHandler next, PointF playerPos)
{
doorOne.SendMessage(new StateMessage(null, "Opening"));
if (direction == Direction.Down) triggerSize = (int)(height - playerPos.Y);
else if (direction == Direction.Left) triggerSize = (int)playerPos.X;
else if (direction == Direction.Right) triggerSize = (int)(width - playerPos.X);
else triggerSize = (int)playerPos.Y;
base.BeginScroll(next, playerPos);
if (doorTwo != null)
{
doorTwo.SendMessage(new StateMessage(null, "Open"));
}
}
public override bool Trigger(PointF position)
{
if (direction == Direction.Right || direction == Direction.Down)
{
if (JoinInfo.direction == JoinDirection.BackwardOnly) return false;
}
else if (JoinInfo.direction == JoinDirection.ForwardOnly) return false;
return (doorOne.GetComponent<CollisionComponent>()).TouchedBy("Player");
}
public void Offset(PointF pos)
{
this.Offset(pos.X, pos.Y);
}
public bool Contains(PointF pt)
{
return this.Contains(pt.X, pt.Y);
}
public virtual RectangleF BoxAt(PointF offset, bool vflip)
{
if (vflip) return new RectangleF(box.X + offset.X, offset.Y - box.Y - box.Height, box.Width, box.Height);
return new RectangleF(box.X + offset.X, box.Y + offset.Y, box.Width, box.Height);
}
private void CheckEnvironmentTile(List<MapSquare> hitSquares, CollisionBox hitbox, RectangleF hitRect, MapSquare tile, ref PointF offset)
{
if (hitbox.EnvironmentCollisions(PositionSrc.Position, tile, ref offset))
{
hitSquares.Add(tile);
if (hitbox.PushAway) PositionSrc.Offset(offset.X, offset.Y);
}
else if (hitRect.IntersectsWith(tile.BoundBox))
{
hitSquares.Add(tile);
}
}
// change those last bools into an enum or something else!
public PointF GetIntersectionOffset(RectangleF tileBox, RectangleF boundBox, float approach_vx, float approach_vy, bool uponly, bool downonly)
{
float top = -1, bottom = -1, left = -1, right = -1;
RectangleF intersection = RectangleF.Intersect(boundBox, tileBox);
PointF offset = new PointF(0, 0);
if (intersection.Width == 0 && intersection.Height == 0) return offset;
if (Math.Abs(intersection.Bottom - boundBox.Bottom) < Const.PixelEpsilon) bottom = intersection.Height;
if (Math.Abs(intersection.Top - boundBox.Top) < Const.PixelEpsilon) top = intersection.Height;
if (Math.Abs(intersection.Right - boundBox.Right) < Const.PixelEpsilon) right = intersection.Width;
if (Math.Abs(intersection.Left - boundBox.Left) < Const.PixelEpsilon) left = intersection.Width;
if (top > 0 || bottom > 0 || left > 0 || right > 0)
{
bool vert = CollisionComponent.VerticalApproach(intersection, boundBox, approach_vx, approach_vy);
if (vert)
{
if (downonly)
{
if (approach_vy > 0 && boundBox.Bottom <= tileBox.Bottom)
{
offset.Y = -bottom;
return offset;
}
else return new PointF(0, 0);
}
else if (uponly)
{
if (approach_vy < 0 && boundBox.Top >= tileBox.Top)
{
offset.Y = top;
return offset;
}
else return new PointF(0, 0);
}
if (top >= 0) offset.Y = top;
if (bottom >= 0) offset.Y = -bottom;
}
else
{
if (uponly || downonly) return new PointF(0, 0);
if (left >= 0)
{
if (approach_vx < 0) offset.X = left;
}
if (right >= 0)
{
if (approach_vx > 0) offset.X = -right;
}
}
}
return offset;
}
public bool EnvironmentCollisions(PointF position, IMapSquare square, ref PointF offset)
{
offset.X = 0;
offset.Y = 0;
// some optimizations
RectangleF tileBox = square.BlockBox;
if (box.Right + position.X < tileBox.Left) return false;
if (box.Left + position.X > tileBox.Right) return false;
RectangleF boundBox = BoxAt(position);
return EnvironmentContact(square, tileBox, boundBox, out offset);
}
public override RectangleF BoxAt(PointF offset, bool vflip)
{
float x = (parentComponent.MovementSrc != null && parentComponent.MovementSrc.Direction == Direction.Left) ? offset.X - box.X - box.Width : box.X + offset.X;
if (vflip) return new RectangleF(x, offset.Y - box.Y - box.Height, box.Width, box.Height);
return new RectangleF(x, box.Y + offset.Y, box.Width, box.Height);
}
public RectangleF BoxAt(PointF offset)
{
float x = (parentComponent.MovementSrc != null && parentComponent.MovementSrc.Direction == Direction.Left) ? offset.X - box.X - box.Width : box.X + offset.X;
if (parentComponent.Parent.IsGravitySensitive && parentComponent.Parent.Container.IsGravityFlipped) return new RectangleF(x, offset.Y - box.Y - box.Height, box.Width, box.Height);
return new RectangleF(x, box.Y + offset.Y, box.Width, box.Height);
}
public virtual bool Trigger(PointF position)
{
if (direction == Direction.Right || direction == Direction.Down)
{
if (JoinInfo.direction == JoinDirection.BackwardOnly) return false;
}
else if (JoinInfo.direction == JoinDirection.ForwardOnly) return false;
return (position.X >= threshXmin && position.X <= threshXmax &&
position.Y >= threshYmin && position.Y <= threshYmax);
}
public virtual void BeginScroll(ScreenHandler next, PointF playerPos)
{
scrollDist = 0;
tickdist = (TriggerSize() + OffsetDist()) / ticks;
this.nextHeight = next.Screen.PixelHeight;
this.nextWidth = next.Screen.PixelWidth;
if (direction == Direction.Down) NextScreenY = -height;
else if (direction == Direction.Right) NextScreenX = -width;
else if (direction == Direction.Left) NextScreenX = nextWidth;
else if (direction == Direction.Up) NextScreenY = nextHeight;
Calculate();
}
private bool EnvironmentContact(IMapSquare square, RectangleF tileBox, RectangleF boundBox, out PointF offset)
{
// can't use intersection, use epsilon
offset = PointF.Empty;
if (tileBox.Top < boundBox.Top)
{
if (tileBox.Bottom - boundBox.Top + Const.PixelEpsilon <= 0) return false;
}
else
{
if (boundBox.Bottom - tileBox.Top + Const.PixelEpsilon <= 0) return false;
}
if (tileBox.Left < boundBox.Left)
{
if (tileBox.Right - boundBox.Left + Const.PixelEpsilon <= 0) return false;
}
else
{
if (boundBox.Right - tileBox.Left + Const.PixelEpsilon <= 0) return false;
}
bool down = (!parentComponent.Parent.Container.IsGravityFlipped && square.Properties.Climbable);
bool up = (parentComponent.Parent.Container.IsGravityFlipped && square.Properties.Climbable);
if (parentComponent.MovementSrc != null) offset = GetIntersectionOffset(tileBox, boundBox, parentComponent.MovementSrc.VelocityX, parentComponent.MovementSrc.VelocityY, up, down);
else offset = GetIntersectionOffset(tileBox, boundBox, 0, 0, up, down);
// Quicksand sinking property tells us not to push the hitbox outward
if (square.Properties.Sinking > 0)
{
// don't clip left or right at all
offset.X = 0;
if (parentComponent.Parent.Container.IsGravityFlipped)
{
// don't clip them downward out of the collision
if (offset.Y > 0)
{
offset.Y = 0;
}
}
else
{
// don't clip them upward out of the collision
if (offset.Y < 0)
{
offset.Y = 0;
}
}
}
return true;
}
public void Offset(float x, float y)
{
Position = new PointF(Position.X + x, Position.Y + y);
}
public void Draw(GameRenderEventArgs renderArgs, PointF playerPos, float adj_x = 0, float adj_y = 0, float off_x = 0, float off_y = 0)
{
int width = Screen.PixelWidth;
int height = Screen.PixelHeight;
if (!isAutoscrolling)
{
OffsetX = OffsetY = 0;
centerX = playerPos.X + adj_x;
centerY = playerPos.Y + adj_y;
if (centerX > Game.CurrentGame.PixelsAcross / 2)
{
OffsetX = centerX - Game.CurrentGame.PixelsAcross / 2;
if (OffsetX > width - Game.CurrentGame.PixelsAcross)
OffsetX = width - Game.CurrentGame.PixelsAcross;
}
if (centerY > Game.CurrentGame.PixelsDown / 2)
{
OffsetY = centerY - Game.CurrentGame.PixelsDown / 2;
if (OffsetY > height - Game.CurrentGame.PixelsDown)
OffsetY = height - Game.CurrentGame.PixelsDown;
if (OffsetY < 0) OffsetY = 0;
}
OffsetX += off_x;
OffsetY += off_y;
}
foreach (var layer in this.layers)
{
layer.Draw(renderArgs, this.Screen.PixelWidth);
}
}
private void CheckEnvironment(List<MapSquare> hitSquares, CollisionBox hitbox)
{
PointF offset = new PointF(0, 0);
RectangleF hitRect = hitbox.BoxAt(PositionSrc.Position);
// this bounds checking prevents needlessly checking collisions way too far away
// it's a very effective optimization (brings busy time from ~60% down to 45%!)
int size = Parent.Screen.TileSize;
for (float y = hitRect.Top - size; y < hitRect.Bottom; y += size)
{
for (float x = hitRect.Left - size; x < hitRect.Right; x += size)
{
var tile = Parent.Screen.SquareAt(x, y);
if (tile == null) continue;
CheckEnvironmentTile(hitSquares, hitbox, hitRect, tile, ref offset);
}
var rightEdge = Parent.Screen.SquareAt(hitRect.Right, y);
if (rightEdge != null)
{
CheckEnvironmentTile(hitSquares, hitbox, hitRect, rightEdge, ref offset);
}
}
for (float x = hitRect.Left - size; x < hitRect.Right; x += size)
{
var tile = Parent.Screen.SquareAt(x, hitRect.Bottom);
if (tile == null) continue;
CheckEnvironmentTile(hitSquares, hitbox, hitRect, tile, ref offset);
}
var lastCorner = Parent.Screen.SquareAt(hitRect.Right, hitRect.Bottom);
if (lastCorner != null)
{
CheckEnvironmentTile(hitSquares, hitbox, hitRect, lastCorner, ref offset);
}
}