bool updateWallCollision(int i, int j, int iOffset, ref Vector2f stepPos, FloatRect stepRect)
{
var dirType = iOffset > 0 ? DirectionType.Right : DirectionType.Left;
Tile[] walls = new Tile[] {
world.GetTile(i + iOffset, j - 1),
world.GetTile(i + iOffset, j - 2),
world.GetTile(i + iOffset, j - 3),
};
bool isWallCollided = false;
foreach (Tile t in walls)
{
if (t == null)
{
continue;
}
FloatRect tileRect = new FloatRect(t.Position, new Vector2f(Tile.TILE_SIZE, Tile.TILE_SIZE));
DebugRender.AddRectangle(tileRect, Color.White);
if (updateCollision(stepRect, tileRect, dirType, ref stepPos))
{
isWallCollided = true;
}
}
return(isWallCollided);
}
private void updatePhysics()
{
velocity.X *= 0.99f;
if (!isGhost)
{
velocity.Y += 0.9f;
var offset = velocity + movement;
float dist = MathHelper.GetDistance(offset);
int countStep = 1;
if (dist > (float)Tile.TILE_SIZE / 2)
{
countStep = (int)(dist / (Tile.TILE_SIZE / 2));
}
Vector2f nextPos = Position + offset;
Vector2f stepPos = Position - rect.Origin;
FloatRect stepRect = new FloatRect(stepPos, rect.Size);
Vector2f stepVec = (nextPos - Position) / countStep;
for (int step = 0; step < countStep; step++)
{
bool isBreakStep = false;
stepPos += stepVec;
stepRect = new FloatRect(stepPos, rect.Size);
DebugRender.AddRectangle(stepRect, Color.Blue);
int i = (int)((stepPos.X + rect.Size.X / 2) / Tile.TILE_SIZE);
int j = (int)((stepPos.Y + rect.Size.Y) / Tile.TILE_SIZE);
Tile tile = world.GetTile(i, j);
if (tile != null)
{
FloatRect tileRect = new FloatRect(tile.Position, new Vector2f(Tile.TILE_SIZE, Tile.TILE_SIZE));
DebugRender.AddRectangle(tileRect, Color.Black);
if (updateCollision(stepRect, tileRect, DirectionType.Down, ref stepPos))
{
velocity.Y = 0;
isFly = false;
isBreakStep = true;
}
else
{
isFly = true;
}
}
else
{
isFly = true;
}
if (updateWallCollision(i, j, -1, ref stepPos, stepRect) || updateWallCollision(i, j, 1, ref stepPos, stepRect))
{
OnWallCollided();
isBreakStep = true;
}
if (isBreakStep)
{
break;
}
}
Position = stepPos + rect.Origin;
}
else
{
Position += velocity + movement;
}
}