Show an error message and return. Each square should be 2x2 characters. Try using that with the row/column number. 2> /kill @e[name=startPoint], And you're done! Color; import java. Can a Catholic priest be tied to a single parish or other physical church his entire life? Fill a small area manually and then clone it. I suspected a test for evenness would help! I started self teaching myself Java a few months ago. The first line contains two integers: width and height. How do I fill in only certain blocks in minecraft 1.11.2? Exercise 3.6: Write an animation applet that shows a checkerboard pattern in which the even numbered rows slide to the left while the odd numbered rows slide to the right. You can find your coordinates using f3 or alt+f3. Otherwise, create an, * array just big enough to hold all the legal moves, copy the legal. Using just While loops, I managed to create an asterisk checkerboard with 8 asterisk columns and rows usinhg my own code below: Code : public class Exe432 { public static void main (String [] args) { int line_number = 1; int asterisk_amount . Each tile contains four squares, each with a default of 10 pixels per side. // An object of this class holds data about a game of checkers. The only problem remaining is how to determine whether the square is red. Python program to print checkerboard pattern of nxn using numpy Difficulty Level : Medium Last Updated : 11 Nov, 2022 Read Discuss Courses Practice Video Given n, print the checkerboard pattern for a n x n matrix Checkerboard Pattern for n = 8: It consists of n * n squares of alternating 0 for white and 1 for black. I'm playing by the same rules — the input is an argument, but the output is stdout. The checkerboard pattern is made up of tiles. Submission. 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ShannonEntropy.java, Your program should display correct results for n=15. We will not worry about providing a full checkerboard representation, of the sort we would need if we were writing a program to play the game of checkers. Share. row number increases). Simple data processing program that performs a find and replace on a list of assembler macros. THIS PAGE DISCUSSES ONE POSSIBLE SOLUTION to the following exercise from this on-line Java textbook.. Can you buy tyres to resist punctures from large thorns? Asking for help, clarification, or responding to other answers. : Further golfing and some explanation comes later. The outer loop iterates once for each row, cycling through the inner loop to add the row. But when x=i*squareSize, the number of columns will be 15. Not the shortest way, but an amusing method. it can be drawn with the command g.fillRect(x,y,20,20), So the test can be written more Returning now to the design of CheckerBoard’s instance methods, the complete definition of the CheckerBoard class is given in Figure [fig-checkerclass]. Still, our visible representation of the board should be designed so that it will eventually be useful when we do develop a checkers game in Chapter [chapter-inheritance]. If. How do you say idiomatically that a clock on the wall is not showing the correct time? Reset the message, in case it was previously, * If no piece has been selected to be moved, the user must first select. I need to generate a checkerboard pattern for a game that I am creating. Since any given row contains eight squares, one in each column of If their sum is even, we use one color; if odd, we use the other color. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. This is impractical but you can run the code as is, as one file, with the -s flag, keeping the n markers. For each row, selects one of the patterns. All suggestions welcome! @DragonGuy When you specify the input requirements, it means input is guaranteed to meet those requirements, and can act arbitrarily when they are not the case. I am trying to draw out a checkerboard GUI but I am having some issues with it. Additional input files are available Input format. Thanks for contributing an answer to Software Engineering Stack Exchange! Determine what to draw based on neighbour tiles? // if the player can jump, only jumps are legal moves. Minecraft any way to use /clone to only replace air blocks? Could I power a corded device with batteries? Bonus - replacing 3 with any other number results in a program that draws valid checkerboard with different cell size. Why is the median of an even number of samples the arithmetic mean? Otherwise, it is black. White squares should be made out of space () characters, and black squares should be made out of pound ( #) characters. How do you make a bad ending satisfying for the readers? * there is a legal jump in that direction, put it in the moves vector. // Current player can resign by clicking this button. How do you say idiomatically that a clock on the wall is not showing the correct time? // The constant representing a King belonging to player. Making statements based on opinion; back them up with references or personal experience. :P, Not wrapping your lines doesn't optimize it; it's still got some inefficiencies. // The move is a jump. Custom Environment optional argument ignored. That should work. * If the user clicked on a squre where the selected piece can be. */, // The paint method completely redraws the canvas, so don't erase, // Draw checkerboard pattern in gray and lightGray. Also, while a single column is a vertical arrangement of items, multiple columns are aligned horizontally with each other. Our design of the CheckerBoard class illustrates an important principle of method design. And here's what I get on my console when I run it: The double for-loop is essentially the same as this code: There is one small difference: at the end of the outer while-loop, i will have the value numRows + 1. Manhwa about a girl who got eaten by a snake protecting her sister. Positive integer in representing the number of squares (dimensions in squares) to draw in the checkerboard, with each square being 2x2 characters. Consider the following sequence of 16 integers generated from a loaded die. (Even rownum and Even column num) and (Odd rownum and Odd column name) prints hash. I = checkerboard creates an 8-by-8 square checkerboard image that has four identifiable corners. */, * If a game is in progress, hilite the legal moves. All suggestions welcome! Two control meshes obtained from the same checkerboard pattern are shown in (a) and (b). If no such, // jumps are possible, null is returned. How do I convert a String to an int in Java? Im only . I found it using the fact that x**i%7 has period 6, then trying different values of x and different postprocessing to get the right pattern. The main method that controls the patterns drawn. and was completely ignored. By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I understand most of the code, but I am still a little confused. * As a courtesy to the user, if all legal moves use the same piece, * then select that piece automatically so the use won't have to click, /* Make sure the board is redrawn in its new state. What are the ethics of creating educational content as an advanced undergraduate? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. How can I get reach for touch spells without spending an action per spell? Can a Catholic priest be tied to a single parish or other physical church his entire life? I might change this so that instead of two independent coordinates it's one value counting up or (maybe even better) down, but can't wrap my head around that right now. Also, as @JayElston said, only one square is drawn at a time. usa.txt, * legally moved, then make the move and return. Programming Language Parser (in Java) - What would be a better design alternative for a special case? A tag already exists with the provided branch name. @user3410845 I've edited my answer to propose a O(n) algorithm, which you might find interesting. How to report an author for using unethical way of increasing citation in his work? It is very basic. Is Java "pass-by-reference" or "pass-by-value"? (Wow, that was a huge post). This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. If there are any, the player must jump. Welcome to Programming Puzzles and Code Golf! The drawBoard() method uses a nested for loop to draw an \(8 \times 8\) array of rectangles of alternating colors. Also, not sure what exactly your id = (i-1)*8+j line is supposed to be doing. */, /* Draw the squares of the checkerboard and the checkers. You signed in with another tab or window. Counting backwards and using the match operator were the breakthroughs ;) The rest is pretty much straightforward logic. Then, find the bottom left corner of where you want to put the pattern. top-left corner of the square. Refund for cancelled DB train but I don't have a German bank account. Write a program that takes a positive integer n as an argument, in stdin, or as user input, and output an checkerboard with nxn squares, along with a border that is 1 character thick. THIS PAGE DISCUSSES ONE POSSIBLE SOLUTION to By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. * Get that player's legal moves. Output format. * If any jump moves were found, then the user must jump, so we don't, * add any regular moves. The first two parameters in fillRect(left,top,width,height) specify the coordinates for the rectangle’s top-left corner. Compact way to generate checkerboard pattern Ask Question Asked 9 years, 7 months ago Modified 7 years, 1 month ago Viewed 26k times 3 I need to generate a checkerboard pattern for a game that I am creating. You can also use the clone command, which is probably easier. file in a Web browser or with Sun's appletviewer program. CheckerboardPatternPrinting/Project4.java Go to file Cannot retrieve contributors at this time 266 lines (225 sloc) 8.33 KB Raw Blame import java. I'm sure your Java text book explains how for loops work. So, the algorithm becomes. How can Estonia give "all" of their 155mm howitzers to Ukraine? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. A for loop is perhaps the most commonly used form of iteration. The second line determines the square color. * legalMoves is never null while a game is in progress. I have come up with the following (pseudo)code, but feel there must be a more compact way to do this. To draw, Call StdDraw.setScale (0, n) so that x - and y -coordinates of the canvas range from 0 and n . Hi guys, this is strictly NOT homework but my own home study. The light squares on the right half of the checkerboard are gray. I have to write a Java method called Checkers that accepts two integer parameters and uses these values to print a checkerboard pattern of hash tag symbols. To switch from one color to the other, we use the Graphics setColor() method to alternate between the two colors designated for the checkerboard, SQ_COLOR1 and SQ_COLOR2. Find centralized, trusted content and collaborate around the technologies you use most. Software Engineering Stack Exchange is a question and answer site for professionals, academics, and students working within the systems development life cycle. 531). Perhaps it'd be a good idea to just get familiar with it now though. This is an anonymous function. Thank you all in advance for your help! 1> /summon ArmorStand {CustomName:"CounterX"} It only takes a minute to sign up. Write a program Checkerboard.java that takes a command-line integer n and plots an n -by- n checkerboard pattern to standard drawing. In this case, of course, the enclosing rectangle is a square, which causes fillOval() to draw a circle. Something that might help would be to include the line System.out.println("i:"+i+"; j:"+j+"; x:"+x+"; x:"+y); in the inner loop right after GRect square.... (as I've demonstrated in my code below) In Java, System.out.println will show things on the console. Before gettinginto the details of the drawBoard and drawCheckers() methods, we must first discuss CheckerBoard’s several instance variables. the checkerboard, we can expand the body of the for loop into another Red always starts the game. Player wants to play their one favorite character and nothing else, but that character can't work in this setting, Refund for cancelled DB train but I don't have a German bank account. // and all such squares in the last three rows contain red squares. 1> /scoreboard players set @e[name=startPoint] vars 1, 1> /execute @e[name=CounterZ,score_vars_min=1] ~ ~ ~ execute @e[name=startPoint,score_vars=1] ~ ~ ~ summon ArmorStand ~ ~ ~2[or another size pattern] {CustomName:"startPoint", NoGravity:1} The original question is about finding a more compact way to do this, not more optimal way. Thus, in row 2 column 3, the sum of the subscripts is 5. (In a regular move, it only moves one row.). @DragonGuy Done, see if it works for you. Go through all of the tiles, and if they're both even or both odd (i.e. AI applications open new security vulnerabilities, How chaos engineering preps developers for the ultimate game day (Ep. // draw with checkerboard method & save to output file. My first question is: How exactly does the program go through the for loops? I guess "Your program should display correct results for n=15." The remaining part of the input is divided into regions. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Why did the Soviet Union decide to use 33 small engines instead of a few large ones on the N1? The first entry in each region is the name of the region. Connect and share knowledge within a single location that is structured and easy to search. rev 2023.1.25.43191. The squares are added in column order. // Note that RED moves "up" the board (i.e. It is assumed that, // the move is legal. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Each time through the inner loop, a single board square is drawn (by adding it to the board). What I don't get about this is what is going on in the parenthesis. Can someone's legal name be all lowercase? My first version (140 characters) used the strategy of calculating the character at each point, which might be better for a more complex problem than this one. Note that the parameters for fillOval(left, top, width, height) are identical to those for fillRect(). Would appreciate it if someone gave tips for improving it further :). but not functions). WorldMap.java. * The following constants represent the possible contents of a square on, * the board. Grep and find to get the last match in multiple files, Integration cannot be replaced by discrete sum, Stockfish destroys Daniel Naroditsky's endgame variation (from his book (Mastering Positional Chess)). Site design / logo © 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This is the source code for rev 2023.1.25.43191. I understand nested for loops much better now. ]. // piece must be one of the constants EMPTY, RED, BLACK, RED_KING, // Make the specified move. What is the earliest portrayal of cell phones as we know them now? the following exercise from this on-line The specification for this problem is to develop a program that will draw a checkerboard and place upon it the checkers in their appropriate starting positions. The constants RED and BLACK also represent players in the. | Main Index Asking for help, clarification, or responding to other answers. Putting in that line will make the program spit out a line each time it draws a square, giving the values of i, j, x, and y. Finally, here's an expanded version of the program with lots of comments. 7> /scoreboard players set @e[name=CounterY] vars N_ROWS and N_COLS give the number of rows and columns in the checkerboard (typically, 8 by 8). Reads a file and creates cooresponding grid with 2D array. The shape of the moon limb/crescent (terminator line). * The current player's turn is ended, so change to the other player. 1, 2, ..., 7. The 8 reminds me that I am counting off the eight numbers 0, 1, 2, ..., 7. Starts with a full array of +--+--+--... lines, and on appropriate lines, replaces the + for | and - for or # as appropriate. Nested loops like this do not increment at the same time: the inner loop will run until j violates the condition (j > numColumns), then the i loop (the outer loop) will increment and the whole inner loop will run again. Of course, the variables row, col, x, (If it could be a pure function, subtract 7 characters putStr$.). with the Web-page file, Checkerboard.html.). THIS PAGE DISCUSSES ONE POSSIBLE SOLUTION to the following exercise from this on-line Java textbook.. THIS PAGE DISCUSSES ONE POSSIBLE SOLUTION to the following exercise from this on-line Java textbook.. The expression that decides the replacement character, "| |##| "[x%6+(i%6>2)*3], could probably be golfed further, but I've found that using a longer, redundant string saves more characters than a complex calculation. color with g.setColor. */, // Whose turn is it now? Assume that the size of the applet is 160 by 160 pixels. For less-known esoteric languages and similar, provide a link to the language. Helper method created to draw snake pattern. How would one find the uncertainty in a mean if the data points themselves have zero-order uncertainty? // Methods are provided to return lists of available legal moves. 107 Java 25; 8.1K Embedded Technologies; 22.2K Java APIs; 138.3K Java Development Tools; 165.4K Java EE (Java Enterprise Edition) 22 Java Essentials; 175 Java 8 Questions; 86K Java Programming; 82 Java Puzzle Ball; 65.1K New To Java; 1.7K Training / Learning / Certification; 13.8K Java HotSpot Virtual Machine; 94.3K Java SE; 13.8K Java Security . // The data for the checkers board is kept here. …Try to optimize your score. Again, this is typical computer science style. class file, Checkerboard.class, must be in the same directory Saw the question was already answered but figured I would give it a try. Difference between static class and singleton pattern? Connect and share knowledge within a single location that is structured and easy to search. TILE = [DARK LIGHT; LIGHT DARK] How to make a checkerboard pattern in shader? How to pass an ArrayList to a varargs method parameter? This is the frame: JFrame checkerBoard = new JFrame (); checkerBoard.setSize (400, 400); checkerBoard.setVisible (true); checkerBoard.setTitle ("CheckerBoard"); checkerBoard.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); int row = 8; int col = 8; Container pane = checkerBoard.getContentPane (); pane.setLayout (new GridLayout (row, col)); if selectedRow >= 0), // draw a 2-pixel white border around that piece and draw green. For this problem, the computational object will be defined in the CheckerBoard class. Why is NaCl so hyper abundant in the ocean. So the idea is that the inner loop does not draw whole columns, but rather the part of each column that is in the row currently being worked on. //call method that imports array from read and parsed file. It is, // assumed that this move is legal. What were the names of these two Ancient Greek boxing/pankration legends? …Be sure to follow the challenge specification. to count off the rows, If a game is in progress, hilite the legal moves. Just call it 64 times in your current code. Assume that the size of the applet This is my first haskell code golf answer and here it is: Uses now the calculation similar to @Sp3000 answer.
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