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About Cuajin

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  1. In my game I want the player to shake his phone, at any point during the game, and every shake will result in switching weapons. Example: Player has knife, [shakes phone] and switches to a katana. [CODE] if (accelerometer.x >= 5 || accelerometer.x <= -5 || accelerometer.y >= 5 || accelerometer.y <= -5 || accelerometer.z >= 5 || accelerometer.z <= -5 ) switchWep(); [/CODE] This works, the problem is it has a[color=#FF0000] [b]side effect.[/b][/color]When the player shakes the phone sometimes it switches weapons twice. So I want to limit it so that if there is a big shake the game doesn't switch from weapon 0 to weapon 2. Please help.
  2. LC-3 Assembly problem

    [img][/img] I think I found a big problem. I can print now, but not 0s. [CODE].ORIG x3000 LD R2, data5 ; Load the ASCII code AND R0, R2, #0 TRAP x21 data5 .FILL x0030 ; ASCII code x30[/CODE] I can use the same code and print a 1, or any number, but 0 (zero) just does not print. For sure R0 = 0 R2 = ASCII code x0030 My output looks like this: 111111 It should look like: 1011011 It is actually 2 bits shorter which means that the 0s are being ignored. Please help
  3. So I am trying to create a game in assembly just for fun. [color=#FF0000][b]EDIT: Please read my second post, it simplifies my question a lot.[/b][/color] In the game you have an inventory and some items. Must the game is actually finished already, and each subroutine works. However, I am having problems printing to the screen. I have printed to the screen before but it was a pain. I’m trying to create a function (subroutine) to display the binary content of R0 to the console. So I want it to print 1 or 0 for each bit; which will mean something in the game. I start in R0[15]…R0[0] end there. [CODE] PRINT ST R7, PRS7 ST R3, PRS3 ;AND R3, R3, #0 LD R3, MASK LOOP AND R0, R0, R3 BRp CHECK CHECK ADD R0, R0, #1 TRAP x21 BRnzp DOWN ELSE AND R0, R0, #0 TRAP x21 DOWN LD R3, PRS3 LD R7, PRS7 PRS7 .BLKW 1 PRS3 .BLKW 1 MASK .FILL x8000 ; Mask x8000 [/CODE] There has to be an easy way to do this. Please help.
  4. I believe I need to check the values at a different position. Then return the larger of the two but as a position instead of a number. I am confused though.
  5. Hi. I understand recursion is not good for this sort of operation, but I am trying to learn. [b][color=#008000]I want to find the position of the largest int in an array recursively.[/color][/b] myList = {5, 2, 3 , 1, 22, 4, 9} ; [CODE] public int findIndex(int[] myList, int size) { if (size == 1) return size-1; return myList[size-1] > findIndex(myList, size-1) ? size-1 : size ; } [/CODE] My code produces this output: [color=#FF0000]position 6. [/color][color=#000000]Which is wrong.[/color] [color=#000000]How do I do this?[/color]
  6. I don't plan to use the exchangeNodes as much. I was originally thinking ArrayList but it was too slow for the other operations. I could swap the info parts, but I actually need to swap the nodes (might also be good to learn to actually swap the nodes because I need a similar thing for another project, a game involving maple trees). I am trying the trailer / leader approach to swap the nodes but I just ended up creating a queue during execution which is definitely bad since all I wanted was to swap nodes.
  7. Reading from a File [Java]

    Thanks guys! Very insightful. Learned a lot.
  8. I’m trying to exchange the position of two nodes a and b. I have the Node class that helps me create a list. [CODE] class Node { E info; Node next; Node (E x) { next = null; info = x; } } [/CODE] Then I have class List. [CODE] public class List<E> { private Node headNode; // some methods like addToList(). They work. // Problem here! public void exchangeNodes(int a, int b) { Node lead = head; while (lead != null) { // here I wrote a bunch of noob code that if you looked at it your eyes would hurt. } } [/CODE] TestClass [CODE] public class TestClass { List myList = new List(); // populating the list with strings. myList.add("a"); myList.add("b"); myList.add("c"); myList.add("d"); myList.add("e"); myList.add("f"); myList.add("g");, 5); // giving it position numbers to exchange. } [/CODE] The big problem is I can't get it to switch the Node's position on the list without destroying Nodes (I lose the reference to pointers when I switch). Clearly Nodes and me don't like each other [img][/img] From the TestClass I want to say exchange what's on position 2 with what is on position 5. Please help.
  9. Reading from a File [Java]

    I am trying to read the inventory for a game in a text file. The inventory looks like this: [CODE] Sword 5 Shield 5 10 Cake Sword 7 Shield 1 5 [/CODE] I need to read from a file and as I'm reading I need to know if the line read was a Sword, Shield or a Cake. Depending on what the item is I will do different things with it. It is important to know the numbers that follow the item. For example, shields have 2 ints, but swords only 1 int. The ints are the stats of the item. [CODE] Scanner read = new Scanner(new File("inventory.txt")) ; while (read.hasNext()) { infile.findInLine("Shield") ; } [/CODE] Please, help me.
  10. toString() [Java]

    I have class A that overwrites toString() [CODE] public class A { public String toString() { return "I am A"; } } [/CODE] I have class B that overwrites toString() but from class A (really weird). [CODE] public abstract class B { private A aObject; public B() { aObject = new A() } public String toString() { return aObject.toString() ; } } [/CODE] Then class C [CODE] public class C extends B { public String toString() { return "I am C " + super.toString(); } } [/CODE] In the tester class I have [CODE] public class Tester { public static void main(String [] args) { C cObj = new C(); B [] bList = { cObj }; for (int i = 0; i < bList.length; i++) { System.out.println( bList[i].toString() ); } } } [/CODE] I want to edit what will be printed. Instead of printing "[color=#008000]I am C[/color][color=#FF0000] I am A[/color]". I only want to print [color=#008000]I am C, [/color][color=#000000]but I don't want to edit Class C's toString because sometimes I do want to print both together. [/color] [color=#000000]Is there a way to downcast or upcast in main to choose what to print from the toString? Or any other way for that matter.[/color] [color=#000000]Please help.[/color]
  11. [Java] Abstract class problem

    Thank you very much.
  12. Hi. I have a Point3D class, Shapes abstract class, and a Sphere that extends Shapes. I want Shapes to have a member object from Point3D. [CODE] public class Point3D { private float x, y, z; public Point3D(float x, float y, float z) { this.x = x; this.y = y; this.z = z; } } [/CODE] [CODE] public abstract class Shape { private Point3D point; public Shape() { point = new Point3D() ; } } [/CODE] [CODE] public class Sphere extends Shape { private double radius; public Sphere(float x, float y, float z, float radius) { // How do I pass the x, y ,z values to point3D? } } [/CODE] I want to create the sphere but by making sure that I pass values to the point3D, how do I do it? Also I have a feeling that putting a constructor on an abstract class is wrong. Please help.
  13. [Java] Problems saving to file.

    The biggest problem is here I think: [CODE] toFile.println(data + "\n" + "testing") ; [/CODE] When I try that the line named testing never jumps to a new line in the txt file.
  14. [Java] Problems saving to file.

    [quote name='rip-off' timestamp='1329251342' post='4913102'] You could add it back in? Alternatively use a form of input that doesn't try to split the data by newline boundaries. Assuming the printing of the data is for debugging purposes, you could instead write to the file in append mode. Something like this (untested): [code] private void saveFile(String data) throws IOException { PrintWriter writer = new PrintWriter(new FileOutputStream("Output.txt", true)); try { writer.println(data); } finally { writer.close(); } } [/code] [/quote] Hello I tried your code and it gave me this error: Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: saveToFile
  15. [Java] Problems saving to file.

    If Scanner.nextLine removes line separators, what would fix it?