public void EnterSelection(GameData data)
{
switch (pauseSelection)
{
case PauseSelection.Continue:
data.State.RemoveState();
break;
case PauseSelection.Restart:
data.State.AddState(new GamePlayState(), true);
break;
case PauseSelection.Quit:
data.State.RemoveState();
data.State.AddState(new MenuState(), true);
break;
}
_selectSound.Play();
}
/// <summary>
/// Adds a random block in the top middle
/// </summary>
public void AddRandomBlock()
{
// Randomize block type and rotation
mCurrentBlockType = (int)mNextBlock.SetNewRandomBlock();
mCurrentBlockRot = RandomHelper.GetRandomInt(4);
// Get precalculated shape
int[,] shape = mBlockTypeShapes[mCurrentBlockType, mCurrentBlockRot];
int xPos = GridWidth / 2 - shape.GetLength(0) / 2;
// Center block at top most position of our grid
mCurrentBlockPos = new Point(xPos, 0);
// Add new block
for (int x = 0; x < shape.GetLength(0); x++)
{
for (int y = 0; y < shape.GetLength(1); y++)
{
if (shape[x, y] > 0)
{
// Check if there is already something
if (mGrid[x + xPos, y] != EBlockTypes.Empty)
{
// Then game is over dude!
GameOver = true;
Sound.Play(ESoundTypes.Lose);
}
else
{
mGrid[x + xPos, y] = (EBlockTypes)mCurrentBlockType;
mFloatingGrid[x + xPos, y] = true;
}
}
}
}
// Add 1 point per block!
TotalScore++;
}
/// <summary>
/// Update whole field, move current floating stuff down
/// and check if any full lines are given.
/// Note: Do not use the override Update(gameTime) method here,
/// Update is ONLY called when 1000ms have passed (level 1), or
/// 100ms for level 10.
/// </summary>
public void Update()
{
if (GameOver || TetrisGame.Paused)
{
return;
}
if (MoveBlock(EMoveTypes.Down) == false || MovingDownWasBlocked)
{
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
mFloatingGrid[x, y] = false;
}
}
Sound.Play(ESoundTypes.BlockFalldown);
}
MovingDownWasBlocked = false;
bool canMove = false;
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
canMove = true;
}
}
}
if (canMove == false)
{
int linesKilled = 0;
for (int y = 0; y < GridHeight; y++)
{
bool fullLine = true;
for (int x = 0; x < GridWidth; x++)
{
if (mGrid[x, y] == EBlockTypes.Empty)
{
fullLine = false;
break;
}
}
if (fullLine)
{
for (int yDown = y - 1; yDown > 0; yDown--)
{
for (int x = 0; x < GridWidth; x++)
{
mGrid[x, yDown + 1] = mGrid[x, yDown];
}
}
for (int x = 0; x < GridWidth; x++)
{
mGrid[0, x] = EBlockTypes.Empty;
}
TotalScore += 10;
CrushedLines++;
linesKilled++;
Sound.Play(ESoundTypes.LineKill);
}
}
if (linesKilled >= 2)
{
TotalScore += 5;
}
if (linesKilled >= 3)
{
TotalScore += 10;
}
if (linesKilled >= 4)
{
TotalScore += 25;
}
AddRandomBlock();
}
}
public void RotateBlock()
{
// Clear old pos
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
mGrid[x, y] = EBlockTypes.Empty;
}
}
}
// Rotate and check if new position is valid
bool anythingBlocking = false;
Point[] newPos = new Point[4];
int newPosNum = 0;
int newRotation = (mCurrentBlockRot + 1) % 4;
int[,] shape = mBlockTypeShapes[mCurrentBlockType, newRotation];
for (int x = 0; x < shape.GetLength(0); x++)
{
for (int y = 0; y < shape.GetLength(1); y++)
{
if (shape[x, y] > 0)
{
if (mCurrentBlockPos.X + x >= GridWidth ||
mCurrentBlockPos.Y + y >= GridHeight ||
mCurrentBlockPos.X + x < 0 ||
mCurrentBlockPos.Y + y < 0 ||
mGrid[mCurrentBlockPos.X + x, mCurrentBlockPos.Y + y] != EBlockTypes.Empty)
{
anythingBlocking = true;
}
else if (newPosNum < 4)
{
newPos[newPosNum] = new Point(mCurrentBlockPos.X + x, mCurrentBlockPos.Y + y);
newPosNum++;
}
}
}
}
// If anything is blocking restore old state
// Or we didn't get all 4 new positions?
if (anythingBlocking || newPosNum != 4)
{
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
mGrid[x, y] = (EBlockTypes)mCurrentBlockType;
}
}
}
}
else
{
// Else we can rotate, lets do it!
mCurrentBlockRot = newRotation;
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
mFloatingGrid[x, y] = false;
}
}
for (int i = 0; i < 4; i++)
{
mGrid[newPos[i].X, newPos[i].Y] = (EBlockTypes)mCurrentBlockType;
mFloatingGrid[newPos[i].X, newPos[i].Y] = true;
}
Sound.Play(ESoundTypes.BlockRotate);
}
}
/// <summary>
/// Move current floating block to left, right or down.
/// If anything is blocking, moving is not possible and
/// nothing gets changed!
/// </summary>
/// <returns>Returns true if moving was successful, otherwise false</returns>
public bool MoveBlock(EMoveTypes moveType)
{
// Clear old pos
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
mGrid[x, y] = EBlockTypes.Empty;
}
}
}
// Move stuff to new position
bool anythingBlocking = false;
Point[] newPos = new Point[4];
int newPosNum = 0;
if (moveType == EMoveTypes.Left)
{
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
if (x - 1 < 0 || mGrid[x - 1, y] != EBlockTypes.Empty)
{
anythingBlocking = true;
}
else if (newPosNum < 4)
{
newPos[newPosNum] = new Point(x - 1, y);
newPosNum++;
}
}
}
}
}
else if (moveType == EMoveTypes.Right)
{
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
if (x + 1 >= GridWidth || mGrid[x + 1, y] != EBlockTypes.Empty)
{
anythingBlocking = true;
}
else if (newPosNum < 4)
{
newPos[newPosNum] = new Point(x + 1, y);
newPosNum++;
}
}
}
}
}
else if (moveType == EMoveTypes.Down)
{
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
if (y + 1 >= GridHeight || mGrid[x, y + 1] != EBlockTypes.Empty)
{
anythingBlocking = true;
}
else if (newPosNum < 4)
{
newPos[newPosNum] = new Point(x, y + 1);
newPosNum++;
}
}
}
}
if (anythingBlocking == true)
{
MovingDownWasBlocked = true;
}
}
// If anything is blocking restore old state
// Or we didn't get all 4 new positions?
if (anythingBlocking || newPosNum != 4)
{
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
if (mFloatingGrid[x, y])
{
mGrid[x, y] = (EBlockTypes)mCurrentBlockType;
}
}
}
return(false);
}
else
{
if (moveType == EMoveTypes.Left)
{
mCurrentBlockPos = new Point(mCurrentBlockPos.X - 1, mCurrentBlockPos.Y);
}
else if (moveType == EMoveTypes.Right)
{
mCurrentBlockPos = new Point(mCurrentBlockPos.X + 1, mCurrentBlockPos.Y);
}
else if (moveType == EMoveTypes.Down)
{
mCurrentBlockPos = new Point(mCurrentBlockPos.X, mCurrentBlockPos.Y + 1);
}
// Else we can move to the new position, lets do it!
for (int x = 0; x < GridWidth; x++)
{
for (int y = 0; y < GridHeight; y++)
{
mFloatingGrid[x, y] = false;
}
}
for (int i = 0; i < 4; i++)
{
mGrid[newPos[i].X, newPos[i].Y] = (EBlockTypes)mCurrentBlockType;
mFloatingGrid[newPos[i].X, newPos[i].Y] = true;
}
Sound.Play(ESoundTypes.BlockMove);
return(true);
}
}
protected override void Update(GameTime gameTime)
{
if (Paused == true)
{
if (Input.KeyboardKeyJustPressed(Keys.P) == false)
{
base.Update(gameTime);
return;
}
Paused = false;
}
else if (Input.KeyboardKeyJustPressed(Keys.P) == true)
{
Paused = true;
base.Update(gameTime);
return;
}
int oldGameMs = mElapsedGameMs;
int frameMs = (int)gameTime.ElapsedGameTime.TotalMilliseconds;
mElapsedGameMs += frameMs;
// Game tick time, 1000 for difficutly=0, 100 for difficutly=9
int gameTickTime = 1000 / (mLevel + 1);
if (mElapsedGameMs / gameTickTime != oldGameMs / gameTickTime || mTetrisGrid.MovingDownWasBlocked == true)
{
mTetrisGrid.Update();
}
// Official way to raise level - after 10 crushed lines
if ((mTetrisGrid.CrushedLines / 10) > mLevel)
{
mLevel++;
Sound.Play(ESoundTypes.Victory);
}
// We sum up the elapsed time after a button/key was pressed.
// If some time has been reached, the action will be executed.
// If we just execute it after the button/key was pressed,
// the block would move extrem fast.
// Current speed of 75ms is kind enough.
if (Input.KeyboardLeftPressed || Input.GamePadLeftPressed)
{
mPressedLeftMs += frameMs;
}
else
{
mPressedLeftMs = 0;
}
if (Input.KeyboardRightPressed || Input.GamePadRightPressed)
{
mPressedRightMs += frameMs;
}
else
{
mPressedRightMs = 0;
}
if (Input.KeyboardDownPressed || Input.GamePadDownPressed || Input.Keyboard.IsKeyDown(Keys.Space) || Input.GamePadAPressed)
{
mPressedDownMs += frameMs;
}
else
{
mPressedDownMs = 0;
}
if (Input.KeyboardLeftJustPressed || Input.GamePadLeftJustPressed || mPressedLeftMs > 200)
{
if (mPressedLeftMs > 75)
{
mPressedLeftMs -= 75;
}
mTetrisGrid.MoveBlock(EMoveTypes.Left);
}
else if (Input.KeyboardRightJustPressed || Input.GamePadRightJustPressed || mPressedRightMs > 200)
{
if (mPressedRightMs > 75)
{
mPressedRightMs -= 75;
}
mTetrisGrid.MoveBlock(EMoveTypes.Right);
}
else if (Input.KeyboardDownJustPressed || Input.GamePadDownJustPressed || Input.KeyboardSpaceJustPressed || Input.GamePadAJustPressed || mPressedDownMs > 150)
{
if (mPressedDownMs > 50)
{
mPressedDownMs -= 50;
}
mTetrisGrid.MoveBlock(EMoveTypes.Down);
}
else if (Input.KeyboardUpJustPressed || Input.GamePadUpJustPressed)
{
mTetrisGrid.RotateBlock();
}
if (mTetrisGrid.TotalScore != mHighscore)
{
mHighscore = mTetrisGrid.TotalScore;
}
// Restart using Enter
if (mTetrisGrid.GameOver && (Input.KeyboardSpaceJustPressed || Input.GamePadAJustPressed || Input.KeyboardEnterJustPressed))
{
mTetrisGrid.GameOver = false;
mTetrisGrid.TotalScore = 0;
mTetrisGrid.CrushedLines = 0;
mLevel = 0;
mTetrisGrid.Restart();
}
base.Update(gameTime);
}
public void TryRotate(Tetrimino piece, bool clockwise)
{
// Copy Active Piece And Simulate Rotation
Tetrimino copy = GeneratePiece(piece.GetBlockValue());
piece.MakeCopy(copy);
copy.Rotate(clockwise);
// If Everything Looks Good, Rotate Active Piece
if (copy.IsInBounds(_tower))
{
piece.Rotate(clockwise);
}
// If It Doesn't, Try To Apply An Offset To The Rotation
else
{
int rotationOffsetValue = -1;
while (!copy.IsInBounds(_tower))
{
rotationOffsetValue++;
switch (rotationOffsetValue)
{
case 0:
// 1 Space Left
copy.MoveLeftRight(-1);
break;
case 1:
// 2 Spaces Left
copy.MoveLeftRight(-1);
break;
case 2:
// 1 Space Right
copy.MoveLeftRight(3);
break;
case 3:
// 2 Spaces Right
copy.MoveLeftRight(1);
break;
case 4:
// 1 Space Down
copy.MoveLeftRight(-2);
copy.MoveUpDown(1);
break;
case 5:
// 2 Spaces Down
copy.MoveUpDown(1);
break;
default:
return;
}
}
// Rotate And Apply Offset
piece.Rotate(clockwise);
switch (rotationOffsetValue)
{
case 0:
piece.MoveLeftRight(-1);
break;
case 1:
piece.MoveLeftRight(-2);
break;
case 2:
piece.MoveLeftRight(1);
break;
case 3:
piece.MoveLeftRight(2);
break;
case 4:
piece.MoveUpDown(1);
break;
case 5:
piece.MoveUpDown(2);
break;
}
}
_rotateSound.Play();
}
