private void gameForm_Load(object sender, EventArgs e)
{
screenBuffer = Image.FromHbitmap(new Bitmap(this.Width, this.Height).GetHbitmap());
cameraPos = new System.Drawing.PointF(0.0f, 0.0f);
screenCenter = new System.Drawing.PointF(this.Width * 0.5f, this.Height * 0.5f);
graphicsObject = this.CreateGraphics();
gameObjects = new Dictionary <long, gameObject>();
gamePhysics = new Physics(ref gameObjects);
playerShip = createObject("player", @"Images\ship.png", new PointF(0.0f, 0.0f), new PointF(0.0f, 0.0f));
for (int i = 0; i < 100; i++)
{
int rndRoid = random.Next(1, 4);
createObject("asteroid" + i, @"Images\asteroid" + rndRoid + ".png", new PointF(random.Next(-500, 500), random.Next(-500, 500)), new PointF(0.0f, 0.0f));
}
this.DoubleBuffered = true;
this.SetStyle(ControlStyles.AllPaintingInWmPaint |
ControlStyles.UserPaint |
ControlStyles.DoubleBuffer,
true);
}
private gameObject createObject(string objName, string objImageFileName, PointF objPos, PointF objVel)
{
long objID = nextObjID;
nextObjID++;
gameObject newObject = new gameObject(objID, objName, objImageFileName, objPos, objVel);
gameObjects.Add(objID, newObject);
return(newObject);
}
private ArrayList getObjectCells(gameObject curObj)
{
ArrayList retPoints = new ArrayList();
Point curPoint = new Point();
// Center
curPoint.X = (int)Math.Floor(curObj.pos.X / cellSize.X);
curPoint.Y = (int)Math.Floor(curObj.pos.Y / cellSize.Y);
if (!retPoints.Contains(curPoint))
{
retPoints.Add(curPoint);
}
// Upper Left
curPoint.X = (int)Math.Floor(curObj.Min.X / cellSize.X);
curPoint.Y = (int)Math.Floor(curObj.Min.Y / cellSize.Y);
if (!retPoints.Contains(curPoint))
{
retPoints.Add(curPoint);
}
// Upper Right
curPoint.X = (int)Math.Floor(curObj.Max.X / cellSize.X);
curPoint.Y = (int)Math.Floor(curObj.Min.Y / cellSize.Y);
if (!retPoints.Contains(curPoint))
{
retPoints.Add(curPoint);
}
// Lower Right
curPoint.X = (int)Math.Floor(curObj.Max.X / cellSize.X);
curPoint.Y = (int)Math.Floor(curObj.Max.Y / cellSize.Y);
if (!retPoints.Contains(curPoint))
{
retPoints.Add(curPoint);
}
// Lower Right
curPoint.X = (int)Math.Floor(curObj.Min.X / cellSize.X);
curPoint.Y = (int)Math.Floor(curObj.Max.Y / cellSize.Y);
if (!retPoints.Contains(curPoint))
{
retPoints.Add(curPoint);
}
return(retPoints);
}
private void placeInCells(gameObject curObj)
{
ArrayList curCells = getObjectCells(curObj);
ArrayList thisCell;
foreach (Point curCell in curCells)
{
string cellIndex = (curCell.X + "." + curCell.Y);
if (!gameCells.ContainsKey(cellIndex))
{
gameCells.Add(cellIndex, new ArrayList());
}
gameCells.TryGetValue(cellIndex, out thisCell);
thisCell.Add(curObj.ID);
}
}
private void checkForCollision(gameObject toCheck)
{
ArrayList curCells = getObjectCells(toCheck);
}