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Tetris/Java: Difference between revisions

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Tetris/Java (view source)

Revision as of 14:58, 15 April 2016

385 bytes removed ,  8 years ago
→‎{{header|Java}}: cleaned up code a bit, calculate preview offsets
m (turn previewOffsets into EnumMap)
(→‎{{header|Java}}: cleaned up code a bit, calculate preview offsets)
Line 1:
==Code==
{{works with|java|8}}
<lang java>importpackage java.awt.*tetris;
 
import java.utilawt.Random*;▼
import java.awt.event.*;
import static java.utillang.EnumMapMath.*;▼
import static java.lang.String.format;
import java.util.Arrays*;
▲import java.util.Random;
▲import java.util.EnumMap;
import javax.swing.*;
import static tetris.Config.*;
 
public class Tetris extends JPanel implements Runnable {
staticenum Dir {▼
right(1, 0), down(0, 1), left(-1, 0);
 
Dir(int x, int y) {
this.x = x;
this.y = y;
}▼
final int nRows =x, Config.nRowsy;▼
};
 
public static final int EMPTY = -1;
public static final int BORDER = -2;
 
Shape fallingShape;
Shape preSelectedShapenextShape;
 
// position of falling shape
int fallingShapeRow;
int fallingShapeCol;
 
final int blockSize = Config.blockSize;
▲ final int nRows = Config.nRows;
final int nCols = Config.nCols;
final int topMargin = Config.topMargin;
final int leftMargin = Config.leftMargin;
 
final int[][] grid = new int[nRows][nCols];
Line 33 ⟶ 39:
 
public Tetris() {
setPreferredSize(Config.dim);
setBackground(Config.bgColor);
setFocusable(true);
 
Line 67 ⟶ 73:
 
case KeyEvent.VK_LEFT:
if (canMove(fallingShape, -1, 0Dir.left))
move(fallingShape, -1, 0Dir.left);
break;
 
case KeyEvent.VK_RIGHT:
if (canMove(fallingShape, 1, 0Dir.right))
move(fallingShape, 1, 0Dir.right);
break;
 
Line 79 ⟶ 85:
if (!fastDown) {
fastDown = true;
while (canMove(fallingShape, 0, 1Dir.down)) {
move(fallingShape, 0, 1Dir.down);
repaint();
}
Line 99 ⟶ 105:
fallingShapeRow = 1;
fallingShapeCol = 5;
fallingShape = preSelectedShapenextShape;
Shape[] shapes = Shape.values();
preSelectedShapenextShape = shapes[rand.nextInt(shapes.length)];
if (fallingShape != null)
fallingShape.reset();
Line 139 ⟶ 145:
try {
Thread.sleep(scoreboard.getSpeed());
} catch (InterruptedException ignorede) {
return;
}
 
if (!scoreboard.isGameOver()) {
if (canMove(fallingShape, 0, 1Dir.down)) {
move(fallingShape, 0, 1Dir.down);
} else {
shapeHasLanded();
Line 154 ⟶ 161:
 
void drawStartScreen(Graphics2D g) {
g.setFont(Config.mainFont);
 
g.setColor(Config.titlebgColor);
g.fill(Config.titleRect);
g.fill(Config.clickRect);
 
g.setColor(Config.textColor);
g.drawString("Tetris", Config.titleX, Config.titleY);
 
g.setFont(Config.smallFont);
g.drawString("click to start", Config.clickX, Config.clickY);
}
 
void drawSquare(Graphics2D g, int colorIndex, int r, int c) {
g.setColor(Config.colors[colorIndex]);
g.fillRect(leftMargin + c * blockSize, topMargin + r * blockSize,
blockSize, blockSize);
 
g.setStroke(Config.smallStroke);
g.setColor(Config.squareBorder);
g.drawRect(leftMargin + c * blockSize, topMargin + r * blockSize,
blockSize, blockSize);
Line 180 ⟶ 187:
void drawUI(Graphics2D g) {
// grid background
g.setColor(Config.gridColor);
g.fill(Config.gridRect);
 
// the blocks dropped in the grid
Line 193 ⟶ 200:
 
// the borders of grid and preview panel
g.setStroke(Config.largeStroke);
g.setColor(Config.gridBorderColor);
g.draw(Config.gridRect);
g.draw(Config.previewRect);
 
// scoreboard
int x = Config.scoreX;
int y = Config.scoreY;
g.setColor(Config.textColor);
g.setFont(Config.smallFont);
g.drawString(format("hiscore %6d", scoreboard.getTopscore()), x, y);
g.drawString(format("level %6d", scoreboard.getLevel()), x, y + 30);
Line 209 ⟶ 216:
 
// preview
int idxminX = preSelectedShape.ordinal()5, minY = 5, maxX = 0, maxY = 0;
for (int[] p : preSelectedShapenextShape.shapepos) {▼
int offsetX = Config.previewOffsets.get(preSelectedShape)[0] + 15 * blockSize;
minX = min(minX, p[0]);
int offsetY = Config.previewOffsets.get(preSelectedShape)[1] + 2 * blockSize;
minY = min(minY, p[1]);
 
g.translate maxX = max(offsetXmaxX, offsetYp[0]);
maxY = max(maxY, p[1]);
 
}
▲ for (int[] p : preSelectedShape.shape)
double cx = previewCenterX - drawSquare(g,(minX idx,+ maxX + p[1],) p[/ 2.0] * blockSize);
double cy = previewCenterY - ((minY + maxY + 1) / 2.0 * blockSize);
 
g.translate(-offsetXcx, -offsetYcy);
for (int[] p : nextShape.shape)
drawSquare(g, nextShape.ordinal(), p[1], p[0]);
g.translate(-cx, -cy);
}
 
Line 279 ⟶ 290:
}
 
void move(Shape s, intDir xIncr, int yIncrdir) {
fallingShapeRow += yIncrdir.y;
fallingShapeCol += xIncrdir.x;
}
 
boolean canMove(Shape s, intDir xIncr, int yIncrdir) {
for (int[] p : s.pos) {
int newCol = fallingShapeCol + xIncrdir.x + p[0];
int newRow = fallingShapeRow + yIncrdir.y + p[1];
if (grid[newRow][newCol] != EMPTY)
return false;
Line 348 ⟶ 359:
});
}
}</lang>
}
 
<lang java>package tetris;
 
class Scoreboard {
Line 455 ⟶ 468:
return score;
}
}</lang>
}
 
<lang java>package tetris;
 
enum Shape {
ZShape(new int[][]{{0, -1}, {0, 0}, {-1, 0}, {-1, 1}}),
SShape(new int[][]{{0, -1}, {0, 0}, {1, 0}, {1, 1}}),
StraightIShape(new int[][]{{0, -1}, {0, 0}, {0, 1}, {0, 2}}),
TShape(new int[][]{{-1, 0}, {0, 0}, {1, 0}, {0, 1}}),
Square(new int[][]{{0, 0}, {1, 0}, {0, 1}, {1, 1}}),
Line 479 ⟶ 494:
 
final int[][] pos, shape;
}</lang>
}
 
<lang java>package tetris;
 
import java.awt.*;
 
final class Config {
final static Color[] colors = {Color.green, Color.red, Color.blue,
Color.pink, Color.orange, Color.cyan, Color.magenta};
 
// used for centering shapes in the preview pane
final static EnumMap<Shape, int[]> previewOffsets = new EnumMap<>(Shape.class);
▲ static {
previewOffsets.put(Shape.ZShape, new int[]{16, 15});
previewOffsets.put(Shape.SShape, new int[]{-15, 15});
previewOffsets.put(Shape.Straight, new int[]{0, 0});
previewOffsets.put(Shape.TShape, new int[]{0, 0});
previewOffsets.put(Shape.Square, new int[]{-15, 5});
previewOffsets.put(Shape.LShape, new int[]{16, 15});
previewOffsets.put(Shape.JShape, new int[]{-15, 15});
▲ }
 
final static Font mainFont = new Font("Monospaced", Font.BOLD, 48);
Line 501 ⟶ 508:
 
final static Dimension dim = new Dimension(640, 640);
 
final static Rectangle previewRectgridRect = new Rectangle(38746, 47, 200308, 200517);▼
final static Rectangle titleRectpreviewRect = new Rectangle(100387, 8547, 252200, 100200);▼
final static Rectangle clickRecttitleRect = new Rectangle(50100, 37585, 252, 40100);▼
final static Rectangle clickRect = new Rectangle(50, 375, 252, 40);
 
final static int blockSize = 30;
Line 513 ⟶ 525:
final static int clickX = 120;
final static int clickY = 400;
final static int previewCenterX = 467;
 
final static Rectangleint gridRectpreviewCenterY = new Rectangle(46, 47, 308, 517)97;
▲ final static Rectangle previewRect = new Rectangle(387, 47, 200, 200);
▲ final static Rectangle titleRect = new Rectangle(100, 85, 252, 100);
▲ final static Rectangle clickRect = new Rectangle(50, 375, 252, 40);
 
final static Stroke largeStroke = new BasicStroke(5);
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