public Game1()
{
graphics = new GraphicsDeviceManager(this);
Content.RootDirectory = "Content";
oldKeyboardState = new KeyboardState();
mouseElement = new Element();
mouseElement.exists = true;
images = new ImageHandler();
}
/// <summary>
/// Tests for a collision on the top and bottom of element1 with element2. The double
/// returned is in radians.
/// </summary>
/// <param name="element1">The element that wil have its top and bottom tested.</param>
/// <param name="element2">The element that will be tested.</param>
/// <returns></returns>
public static double TestVertical(Element element1, Element element2)
{
if ((element1.roomX >= element2.roomX && element1.roomX <= element2.roomX + element2.sprite.Width - 1) ||
(element1.roomX + element1.sprite.Width >= element2.roomX + 1 && element1.roomX + element1.sprite.Width <=
element2.roomX + element2.sprite.Width))
{
if (element1.roomY <= element2.roomY + element2.sprite.Height && element1.roomY >= element2.roomY)
{ return 0; }
if (element1.roomY + element1.sprite.Height >= element2.roomY && element1.roomY + element1.sprite.Height <=
element2.roomY + element2.sprite.Height)
{ return Math.PI; }
}
return 10;
}
/// <summary>
/// Tests for a collision on the left and right of element1 with element2. The
/// double returned is in radians.
/// </summary>
/// <param name="element1">The element that wil have its left and right tested.</param>
/// <param name="element2">The element that will be tested.</param>
/// <returns></returns>
public static double TestHorizontal(Element element1, Element element2)
{
if ((element1.roomY >= element2.roomY && element1.roomY <= element2.roomY + element2.sprite.Height - 1) ||
(element1.roomY + element1.sprite.Height >= element2.roomY + 1 && element1.roomY + element1.sprite.Height <=
element2.roomY + element2.sprite.Height))
{
if (element1.roomX <= element2.roomX + element2.sprite.Width && element1.roomX >= element2.roomX)
{ return -Math.PI / 2; }
if (element1.roomX + element1.sprite.Width >= element2.roomX && element1.roomX + element1.sprite.Width <=
element2.roomX)
{ return Math.PI / 2; }
}
return 10;
}
/// <summary>
/// Tests if a coordinate is inside the corners of an element.
/// </summary>
/// <param name="argX">The x-coordinate that will be tested.</param>
/// <param name="argY">The y-coordinate that will be tested.</param>
/// <param name="element">The element that will be tested.</param>
/// <returns></returns>
public static bool TestCoordinate(int argX, int argY, Element element)
{
if (argX >= element.roomX && argX <= element.roomX + element.sprite.Width)
{
if (argY >= element.roomY && argY <= element.roomY + element.sprite.Height)
{ return true; }
}
return false;
}
public static bool TestCompletelyInsideForAll(Element insideElement, List<Box> surroundingElements)
{
bool topLeft, topRight, bottomLeft, bottomRight;
topLeft = topRight = bottomLeft = bottomRight = false;
for (int i = 0; i < surroundingElements.Count; i++)
{
if (!topLeft)
{
if (TestCoordinate(insideElement.roomX, insideElement.roomY, surroundingElements[i]))
{ topLeft = true; }
}
if (!topRight)
{
if (TestCoordinate(insideElement.roomX + insideElement.sprite.Width, insideElement.roomY,
surroundingElements[i]))
{ topRight = true; }
}
if (!bottomLeft)
{
if (TestCoordinate(insideElement.roomX, insideElement.roomY + insideElement.sprite.Height,
surroundingElements[i]))
{ bottomLeft = true; }
}
if (!bottomRight)
{
if (TestCoordinate(insideElement.roomX + insideElement.sprite.Width, insideElement.roomY +
insideElement.sprite.Height, surroundingElements[i]))
{ bottomRight = true; }
}
if (topLeft && topRight && bottomLeft && bottomRight)
{ return true; }
}
return false;
}
/// <summary>
/// Tests the corners of the inside element inside the surrounding element. It will
/// only return true if all the corners are inside the surrounding element.
/// </summary>
/// <param name="insideElement">The element that will be tested if inside the
/// surrounding element.</param>
/// <param name="surroundingElement">The element that will be tested if surrounding
/// the inside element.</param>
/// <returns></returns>
public static bool TestCompletelyInside(Element insideElement, Element surroundingElement)
{
if (insideElement.roomX >= surroundingElement.roomX && insideElement.roomX + insideElement.sprite.Width <=
surroundingElement.roomX + surroundingElement.sprite.Width)
{
if (insideElement.roomY >= surroundingElement.roomY && insideElement.roomY + insideElement.sprite.Height <=
surroundingElement.roomY + surroundingElement.sprite.Height)
{ return true; }
}
return false;
}
/// <summary>
/// Tests the corners of the first element insideElement the corners of the second element,
/// then switches the elements and does the same thing.
/// </summary>
/// <param name="element1">An element that is or could be colliding.</param>
/// <param name="element2">An element that is or could be colliding.</param>
/// <returns></returns>
public static bool Test(Element element1, Element element2)
{
if (element1.roomX >= element2.roomX && element1.roomX <= element2.roomX + element2.sprite.Width)
{
if (element1.roomY >= element2.roomY && element1.roomY <= element2.roomY + element2.sprite.Height)
{ return true; }
if (element1.roomY + element1.sprite.Height >= element2.roomY && element1.roomY + element1.sprite.Height <=
element2.roomY + element2.sprite.Height)
{ return true; }
}
if (element1.roomX + element1.sprite.Width >= element2.roomX && element1.roomX + element1.sprite.Width <=
element2.roomX + element2.sprite.Width)
{
if (element1.roomY >= element2.roomY && element1.roomY <= element2.roomY + element2.sprite.Height)
{ return true; }
if (element1.roomY + element1.sprite.Height >= element2.roomY && element1.roomY + element1.sprite.Height <=
element2.roomY + element2.sprite.Height)
{ return true; }
}
Element tempElement = element1;
element1 = element2;
element2 = tempElement;
if (element1.roomX >= element2.roomX && element1.roomX <= element2.roomX + element2.sprite.Width)
{
if (element1.roomY >= element2.roomY && element1.roomY <= element2.roomY + element2.sprite.Height)
{ return true; }
if (element1.roomY + element1.sprite.Height >= element2.roomY && element1.roomY + element1.sprite.Height <=
element2.roomY + element2.sprite.Height)
{ return true; }
}
if (element1.roomX + element1.sprite.Width >= element2.roomX && element1.roomX + element1.sprite.Width <=
element2.roomX + element2.sprite.Width)
{
if (element1.roomY >= element2.roomY && element1.roomY <= element2.roomY + element2.sprite.Height)
{ return true; }
if (element1.roomY + element1.sprite.Height >= element2.roomY && element1.roomY + element1.sprite.Height <=
element2.roomY + element2.sprite.Height)
{ return true; }
}
return false;
}
