public static void DrawText(ScreenCanvas screenCanvas, string strText,
Justify justification, int iTopLoc,
int iLetterWidth, int iLetterHeight,
int iPictX, int iPictY)
{
int iPrintStart;
switch (justification)
{
case Justify.LEFT:
iPrintStart = 100;
break;
case Justify.CENTER:
iPrintStart = (int)((iMaxX - strText.Length * iLetterWidth) / 2.0);
break;
case Justify.RIGHT:
iPrintStart = iMaxX - 100 - strText.Length * iLetterWidth;
break;
default:
return;
}
for (int i = 0; i < strText.Length; i++)
{
TextDraw.DrawLetter(screenCanvas, strText[i],
(int)((iPrintStart + i * iLetterWidth) / (double)iMaxX * iPictX),
(int)(iTopLoc / (double)iMaxY * iPictY),
(int)(iLetterWidth / (double)iMaxX * iPictX),
(int)(iLetterHeight / (double)iMaxY * iPictY));
}
}
public void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
foreach (Explosion explosion in explosions)
{
explosion.Draw(sc, iPictX, iPictY);
}
}
public void Draw(ScreenCanvas screenCanvas, int iPictX, int iPictY)
{
const int iWriteTop = 100;
const int iLetterWidth = 200;
const int iLetterHeight = iLetterWidth * 2;
String strScore;
// Draw Score + Ships left justified
strScore = iScore.ToString("000000") + " ";
if (iShips > 10)
{
strScore += "^x" + (iShips - 1);
}
else
{
for (int i = 0; i < iShips - 1; i++)
{
strScore += "^";
}
}
TextDraw.DrawText(screenCanvas, strScore, TextDraw.Justify.LEFT,
iWriteTop, iLetterWidth, iLetterHeight, iPictX, iPictY);
// Draw HiScore Centered
strScore = iHiScore.ToString("000000");
TextDraw.DrawText(screenCanvas, strScore, TextDraw.Justify.CENTER,
iWriteTop, iLetterWidth, iLetterHeight, iPictX, iPictY);
}
public void DrawScreen(ScreenCanvas screenCanvas, int iPictX, int iPictY)
{
// Flip back and forth between "Game Over" and "Asteroids"
if ((iLetterSize > 1000) || (iLetterSize < 40))
{
iIncrement = -iIncrement;
if (iLetterSize < 40)
{
if (strTitle == "GAME OVER")
{
strTitle = "ASTEROIDS";
}
else
{
strTitle = "GAME OVER";
}
}
}
iLetterSize += iIncrement;
TextDraw.DrawText(screenCanvas, strTitle, TextDraw.Justify.CENTER,
iMaxY / 2 - iLetterSize, iLetterSize, iLetterSize * 2, iPictX, iPictY);
// Draw copyright notice
const int iTitleWidth = 200;
const int iTitleHeight = iTitleWidth * 2;
TextDraw.DrawText(screenCanvas, strCopyright, TextDraw.Justify.CENTER,
iMaxY - iTitleWidth * 3, iTitleWidth, iTitleHeight, iPictX, iPictY);
// Draw the asteroid belt
asteroids.Move();
asteroids.Draw(screenCanvas, iPictX, iPictY);
}
public void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
foreach (Asteroid asteroid in asteroids)
{
asteroid.Draw(sc, iPictX, iPictY);
}
}
public new void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
// only draw things that are not available
if (!Available())
{
base.Draw(sc, iPictX, iPictY, GetRandomFireColor());
}
}
public new void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
// only draw things that are not available
if (aSize != ASTEROID_SIZE.DNE)
{
//Rotate(rotateSpeed);
base.Draw(sc, iPictX, iPictY);
}
}
protected void DrawPolyToSC(ArrayList alPoly, ScreenCanvas sc, int iPictX, int iPictY,
System.Drawing.Pen penColor)
{
Point[] ptsPoly = new Point[alPoly.Count];
for (int i = 0; i < alPoly.Count; i++)
{
ptsPoly[i].X = (int)((currLoc.X + ((Point)alPoly[i]).X) / (double)iMaxX * iPictX);
ptsPoly[i].Y = (int)((currLoc.Y + ((Point)alPoly[i]).Y) / (double)iMaxY * iPictY);
}
sc.AddPolygon(ptsPoly, penColor);
}
public override void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
for (int i = 0; i < NUM_EXP_POINTS; i++)
{
Point ptDraw = new Point((int)(ptPoints[i].X / (double)iMaxX * iPictX),
(int)(ptPoints[i].Y / (double)iMaxY * iPictY));
Point ptDraw2 = new Point(ptDraw.X + 1, ptDraw.Y + 1);
sc.AddLine(ptDraw, ptDraw2, GetRandomFireColor());
}
}
private void frmAsteroids_Activated(object sender, EventArgs e)
{
if (gameStatus == Modes.PREP)
{
screenCanvas = new ScreenCanvas();
score = new Score();
gameStatus = Modes.TITLE;
currTitle = new TitleScreen();
currTitle.InitTitleScreen();
// Timers for flipping display and playing sounds
SetFlipTimer();
SetSoundsTimer();
// Handle the game
do
{
Application.DoEvents();
Thread.Sleep(0);
} while (gameStatus != Modes.EXIT);
}
}
public new void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
switch (state)
{
case SHIP_STATE.ALIVE:
base.Draw(sc, iPictX, iPictY);
if (bThrustOn)
{
// We have points transformed
// so... we know where the bottom of the ship is
ArrayList alPoly = new ArrayList();
alPoly.Capacity = 3;
alPoly.Add(pointsTransformed[iPointThrust1]);
alPoly.Add(pointsTransformed[iPointThrust2]);
int iThrustSize = rndGen.Next(200) + 100; // random thrust effect
alPoly.Add(new Point((((Point)pointsTransformed[iPointThrust1]).X + ((Point)pointsTransformed[iPointThrust2]).X) / 2 + (int)(iThrustSize * Math.Sin(radians)),
(((Point)pointsTransformed[iPointThrust1]).Y + ((Point)pointsTransformed[iPointThrust2]).Y) / 2 + (int)(-iThrustSize * Math.Cos(radians))));
// Draw thrust directly to ScreenCanvas
// it's not really part of the ship object
DrawPolyToSC(alPoly, sc, iPictX, iPictY, GetRandomFireColor());
}
break;
}
}
static private void DrawLetter(ScreenCanvas screenCanvas, char chDraw,
int letterLeft, int letterTop, int letterWidth, int letterHeight)
{
int newLeft = (int)(letterLeft + letterWidth * .2);
int newTop = (int)(letterTop + letterHeight * .1);
int halfRight = (newLeft + letterLeft + letterWidth) / 2;
int halfDown = (newTop + letterTop + letterHeight) / 2;
int rightSide = letterLeft + letterWidth;
int bottomSide = letterTop + letterHeight;
switch (chDraw)
{
case '^':/* Ship */
int pointInUp = (int)(bottomSide - letterHeight * .2);
int pointInLeft = (int)(newLeft + letterWidth * .25);
int pointInRight = (int)(rightSide - letterWidth * .25);
screenCanvas.AddLine(new Point(halfRight, newTop), new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(pointInRight, pointInUp));
screenCanvas.AddLineTo(new Point(pointInLeft, pointInUp));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(halfRight, newTop));
break;
case 'O':
case '0':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, newTop));
break;
case '1':
case 'I':
screenCanvas.AddLine(new Point(halfRight, newTop), new Point(halfRight, bottomSide));
break;
case '2':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
case '3':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, halfDown));
break;
case '4':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(rightSide, bottomSide));
break;
case '5':
case 'S':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
break;
case '6':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(newLeft, halfDown));
break;
case '7':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
case '8':
case 'B':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, newTop));
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, halfDown));
break;
case '9':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
break;
case 'x':
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, bottomSide));
screenCanvas.AddLine(new Point(rightSide, halfDown), new Point(newLeft, bottomSide));
break;
case 'A':
screenCanvas.AddLine(new Point(newLeft, bottomSide), new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(halfRight, newTop));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, halfDown));
break;
// case 'B' handled by '8'
case 'C':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
case 'D':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(halfRight, newTop));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(halfRight, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, newTop));
break;
case 'E':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, halfDown));
break;
case 'F':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, halfDown));
break;
case 'G':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(halfRight, halfDown));
break;
case 'H':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(newLeft, bottomSide));
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(rightSide, bottomSide));
screenCanvas.AddLine(new Point(newLeft, halfDown), new Point(rightSide, halfDown));
// case 'I' handled by '1'
break;
case 'J':
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(halfRight, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, halfDown));
break;
case 'K':
screenCanvas.AddLine(new Point(newLeft, bottomSide), new Point(newLeft, newTop));
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
case 'L':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
case 'M':
screenCanvas.AddLine(new Point(newLeft, bottomSide), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(halfRight, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
case 'N':
screenCanvas.AddLine(new Point(newLeft, bottomSide), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
break;
// case 'O' handled by '0'
case 'P':
screenCanvas.AddLine(new Point(newLeft, bottomSide), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(newLeft, halfDown));
break;
case 'Q':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(newLeft, newTop));
screenCanvas.AddLine(new Point(halfRight, halfDown), new Point(rightSide, bottomSide));
break;
case 'R':
screenCanvas.AddLine(new Point(newLeft, bottomSide), new Point(newLeft, newTop));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(rightSide, halfDown));
screenCanvas.AddLineTo(new Point(newLeft, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
// case 'S' handled by '5'
case 'T':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLine(new Point(halfRight, newTop), new Point(halfRight, bottomSide));
break;
case 'U':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
break;
case 'V':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(halfRight, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
break;
case 'W':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(halfRight, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
break;
case 'X':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, bottomSide));
screenCanvas.AddLine(new Point(rightSide, newTop), new Point(newLeft, bottomSide));
break;
case 'Y':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(halfRight, halfDown));
screenCanvas.AddLineTo(new Point(rightSide, newTop));
screenCanvas.AddLine(new Point(halfRight, halfDown), new Point(halfRight, bottomSide));
break;
case 'Z':
screenCanvas.AddLine(new Point(newLeft, newTop), new Point(rightSide, newTop));
screenCanvas.AddLineTo(new Point(newLeft, bottomSide));
screenCanvas.AddLineTo(new Point(rightSide, bottomSide));
break;
}
}
public void DrawScreen(ScreenCanvas sc, int iPictX, int iPictY, ref Score score)
{
Point ptCheck = new Point(0);
if (paused)
{
// Pause flashes on and off
if (iPauseTimer > PAUSE_INTERVAL / 2)
{
TextDraw.DrawText(sc, "PAUSE", TextDraw.Justify.CENTER,
iMaxY / 3, 200, 400, iPictX, iPictY);
}
if (--iPauseTimer < 0)
{
iPauseTimer = PAUSE_INTERVAL;
}
}
else // Do all game processing if game is not paused
{
// If no ship displaying, after explosions are done
// get a new one - or end the game
if (!ship.IsAlive() && (explosions.Count() == 0))
{
if (!score.HasReserveShips())
{
// Game over
inProcess = false;
}
else
{
if (asteroids.IsCenterSafe())
{
score.GetNewShip();
ship = new Ship(true);
}
}
}
// Create a new asteroid belt if
// no explosions and no asteroids
if ((explosions.Count() == 0) && (asteroids.Count() == 0))
{
asteroids = new AsteroidBelt(++iLevel);
}
// Move all objects
ship.Move();
foreach (Bullet bullet in shipBullets)
{
bullet.Move();
}
asteroids.Move();
explosions.Move();
// Check bullets for collisions
foreach (Bullet bullet in shipBullets)
{
if (bullet.AcquireLoc(ref ptCheck) && CheckPointInAsteroid(ptCheck, ref score))
{
explosions.AddExplosion(ptCheck);
bullet.Disable();
}
}
// Check ship for collisions
if (ship.IsAlive())
{
foreach (Point ptInShip in ship.pointsTransformed)
{
ptCheck.X = ptInShip.X + ship.GetCurrLoc().X;
ptCheck.Y = ptInShip.Y + ship.GetCurrLoc().Y;
if (CheckPointInAsteroid(ptCheck, ref score))
{
ExplodeShip();
break;
}
}
}
}
// Draw all objects
ship.Draw(sc, iPictX, iPictY);
foreach (Bullet bullet in shipBullets)
{
bullet.Draw(sc, iPictX, iPictY);
}
asteroids.Draw(sc, iPictX, iPictY);
explosions.Draw(sc, iPictX, iPictY);
// Draw the score
score.Draw(sc, iPictX, iPictY);
}
public virtual void Draw(ScreenCanvas sc, int iPictX, int iPictY, System.Drawing.Pen penColor)
{
DrawPolyToSC(pointsTransformed, sc, iPictX, iPictY, penColor);
}
public virtual void Draw(ScreenCanvas sc, int iPictX, int iPictY)
{
DrawPolyToSC(pointsTransformed, sc, iPictX, iPictY, Pens.White);
}