/* Tiled Layer Bitmap*/
public class TiledLayer {
private int cellWidth;
private int cellHeight;
private int yPosition = 0, xPosition = 0;
private int[][] grid;
private Image image;
private int[] tileXPositions;
private int[] tileYPositions;
private ArrayList animatedTiles;
private int numberOfTiles;
private int numberOfColumns;
private int numberOfRows;
private int gridColumns;
private int gridRows, width, height;
public TiledLayer(Image image, int columns, int rows, int tileWidth,
int tileHeight, int width, int height) {
this.grid = new int[columns][rows];
this.gridColumns = columns;
this.gridRows = rows;
this.width = columns * tileWidth;
this.height = rows * tileHeight;
this.animatedTiles = new ArrayList();
setStaticTileSet(image, tileWidth, tileHeight);
}
public void setStaticTileSet(Image image, int tileWidth, int tileHeight) {
this.image = image;
this.cellWidth = tileWidth;
this.cellHeight = tileHeight;
int columns = 64;//image.getWidth() / tileWidth;
int rows =40;// image.getHeight() / tileHeight;
this.tileXPositions = new int[columns];
int pos = 0;
for (int i = 0; i < columns; i++) {
this.tileXPositions[i] = pos;
pos += tileWidth;
}
this.tileYPositions = new int[rows];
pos = 0;
for (int i = 0; i < rows; i++) {
this.tileYPositions[i] = pos;
pos += tileHeight;
}
if (columns * rows < this.numberOfTiles) {
// clear the grid, when there are not as many tiles as in the
// previous set:
for (int i = 0; i < this.grid.length; i++) {
for (int j = 0; j < this.grid[i].length; j++) {
this.grid[i][j] = 0;
}
}
}
this.numberOfTiles = columns * rows;
this.numberOfColumns = columns;
this.numberOfRows = rows;
}
public int createAnimatedTile(int staticTileIndex) {
if (staticTileIndex >= this.numberOfTiles) {
throw new IllegalArgumentException("invalid static tile index: "
+ staticTileIndex + " (there are only ["
+ this.numberOfTiles + "] tiles available.");
}
this.animatedTiles.add(new Integer(staticTileIndex));
return -1 * (this.animatedTiles.size() - 1);
}
public void setAnimatedTile(int animatedTileIndex, int staticTileIndex) {
if (staticTileIndex >= this.numberOfTiles) {
}
int animatedIndex = (-1 * animatedTileIndex) - 1;
this.animatedTiles.set(animatedIndex, new Integer(staticTileIndex));
}
public int getAnimatedTile(int animatedTileIndex) {
int animatedIndex = (-1 * animatedTileIndex) - 1;
Integer animatedTile = (Integer) this.animatedTiles.get(animatedIndex);
return animatedTile.intValue();
}
public void setCell(int col, int row, int tileIndex) {
if (tileIndex >= this.numberOfTiles) {
throw new IllegalArgumentException("invalid static tile index: "
+ tileIndex + " (there are only [" + this.numberOfTiles
+ "] tiles available.");
}
this.grid[col][row] = tileIndex;
}
public int getCell(int col, int row) {
return this.grid[col][row];
}
public void fillCells(int col, int row, int numCols, int numRows,
int tileIndex) {
if (tileIndex >= this.numberOfTiles) {
throw new IllegalArgumentException("invalid static tile index: "
+ tileIndex + " (there are only [" + this.numberOfTiles
+ "] tiles available.");
}
int endCols = col + numCols;
int endRows = row + numRows;
for (int i = col; i < endCols; i++) {
for (int j = row; j < endRows; j++) {
this.grid[i][j] = tileIndex;
}
}
}
public final int getCellWidth() {
return this.cellWidth;
}
public final int getCellHeight() {
return this.cellHeight;
}
public final int getColumns() {
return this.gridColumns;
}
public final int getRows() {
return this.gridRows;
}
public final void paint(Graphics g) {
int clipX = 0;// g.getClipX();
int clipY = 0;// g.getClipY();
int clipWidth = width;// g.getClipWidth();
int clipHeight = height;// g.getClipHeight();
// jmt restore clip to previous state
int x = this.xPosition;
int y = this.yPosition;
int[][] gridTable = this.grid;
for (int i = 0; i < this.gridColumns; i++) {
int[] gridRow = gridTable[i];
for (int j = 0; j < gridRow.length; j++) {
int cellIndex = gridRow[j];
if (cellIndex != 0) {
// okay this cell needs to be rendered:
int tileIndex;
if (cellIndex < 0) {
Integer tile = (Integer) this.animatedTiles
.get((-1 * cellIndex) - 1);
tileIndex = tile.intValue() - 1;
} else {
tileIndex = cellIndex - 1;
}
// now draw the tile:
g.save(Canvas.CLIP_SAVE_FLAG);
// jmt: clear the screen
Rect r = new Rect(0, 0, cellWidth, cellHeight);
g.clipRect(r);
g.setClip(x, y, this.cellWidth, this.cellHeight);
int column = tileIndex % this.numberOfColumns;
int row = tileIndex / this.numberOfColumns;
int tileX = x - this.tileXPositions[column];
int tileY = y - this.tileYPositions[row];
g.drawImage(this.image, tileX, tileY);
g.restore();
}
y += this.cellHeight;
} // for each row
y = this.yPosition;
x += this.cellWidth;
} // for each column
// reset original clip:
g.setClip(clipX, clipY, clipWidth, clipHeight);
}
}
