public static void CalculateScreenBoundries(MovingSprite sprite, Vector2 viewport)
{
//left
if (sprite.currentPOS.X < 0)
{
sprite.currentPOS.X = 0;
sprite.horizontalVelocity = 0;
}
//top
if (sprite.currentPOS.Y < 0)
{
sprite.currentPOS.Y = 0;
sprite.verticalVelocity = 0;
}
//right
if (sprite.currentPOS.X > viewport.X - sprite.getWidth())
{
sprite.currentPOS.X = viewport.X - sprite.getWidth();
sprite.horizontalVelocity = 0;
}
//bottom
if (sprite.currentPOS.Y > viewport.Y)
{
sprite.Death();
}
}
public static void ResolvePlatformCollisions(MovingSprite sprite, SortedList<int, Platform> platforms)
{
foreach (KeyValuePair<int, Platform> platform in platforms)
{
RectangleHelper playerRec = new RectangleHelper(sprite.currentPOS.X, sprite.currentPOS.Y, sprite.getWidth(), sprite.getHeight());
RectangleHelper platformRec = new RectangleHelper(platform.Value.originalPosition.X, platform.Value.originalPosition.Y, platform.Value.getWidth(), platform.Value.getHeight());
Vector2 overlap = RectangleHelper.Collide(playerRec, platformRec);
PushSprite(sprite, overlap);
}
}
private static void PushSprite(MovingSprite sprite, Vector2 overlap)
{
if (overlap.Y < overlap.X)
{
//push player down
if (sprite.verticalVelocity < 0)
{
sprite.currentPOS.Y += overlap.Y;
sprite.verticalVelocity = 0;
}
//push player up
else if (sprite.verticalVelocity > 0)
{
sprite.currentPOS.Y -= overlap.Y;
sprite.verticalVelocity = 0;
sprite.isOnGround = true;
}
}
if (overlap.X < overlap.Y)
{
//push player right
if (sprite.horizontalVelocity < 0)
{
sprite.currentPOS.X += overlap.X;
//sprite.horizontalVelocity = 0;
}
//push player left
if (sprite.horizontalVelocity > 0)
{
sprite.currentPOS.X -= overlap.X;
//sprite.horizontalVelocity = 0;
}
}
}