Dead On Collision

Jun 15, 2014

okay so far I have made a game with character that runs with constant velocity it jumps and ducks . I want the player to be dead on collision from a hurdle and then play a specific png, which shows the dying style . I am able to build collision detection but it passes from background I want it to collide and be dead on collision.

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Error And Dead Code Warning

Mar 26, 2015

There are 2 methods and a main one. The first is a void that creates a 3x4 2d array and the second is to search for a value in the array, if found it will return the number of the row that contains that value. If not, it will return -1, but I am getting 1 error and 1 dead code warning.I will put comments at the lines that contain the problems

import java.util.Scanner;
class Question4{
public static void main(String[]args){
Scanner s = new Scanner(System.in);
int x,n;
System.out.println("Please input the value that will be used in the array");
x=s.nextInt();
System.out.println("What is the value you want to search for?");
n=s.nextInt();
createArray (x,n);

[code]....

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JavaFX 2.0 :: Point Of Collision Between Shapes

May 25, 2015

I have a problem in with colissions in JavaFX.
 
First, I detect a collision between a line and a circle using the follow code:
 
if(line.getBoundsInParent().intersects(circle.getBoundsInParent())){
System.out.println("Collision!");
}
 
After this, i need catch the coordinate of collision, like the below figure:

How to catch this coordinate?
 
[]'s

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Object Collision Detection - Character Freezes

Dec 2, 2014

I don't understand why when I collide into my objects my character freezes. Such as if I collide into collision() I can go left and right but, not up and if I collide into collision2() I freeze in all places but, if I collide into the bounds I made I can still go in all directions without problems. The xa and ya are still being set to 0.

package com.questkings.game;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;

[Code] .....

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Pong Game - Y Axis Collision Detection

Jan 28, 2014

I have made a "Pong" game and how to check if the ball has hit the top or the bottom of a paddle, however I do know how to check if it has hit the left or right side:

Java Code:

if((BALL.getX() >= LEFT_BAT.getX() && BALL.getX() <= LEFT_BAT.getX() + LEFT_BAT.getWidth()
&& BALL.getY() >= LEFT_BAT.getY() && BALL.getY() <= LEFT_BAT.getY() + LEFT_BAT.getHeight())
&& (BALL.getX() >= RIGHT_BAT.getX() && BALL.getX() <= RIGHT_BAT.getX() + RIGHT_BAT.getWidth()
&& BALL.getY() >= RIGHT_BAT.getY() && BALL.getY() <= RIGHT_BAT.getY() + RIGHT_BAT.getHeight())){
BALL.increaseDX();
BALL.setDX(-BALL.getDX());
} mh_sh_highlight_all('java');

It seems as though I would use the same code for checking the top or bottom.

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Video Game - Collision Detection Class?

Apr 30, 2014

I use eclipse as my IDE. I have decided to make my own video game and somebody had sent me a class that could be used for collision detection. The problem with the collision detection class was that it made a box around an object and if something else had touched the object, the collision detection would work. My problem with this class is what happens when i want to use circles? I cant have a box drawn around it. Then it wouldn't work as i would want. Is there a pixel perfect collision detection class out there I can use? It'll be useful in my journey to become successful in computer science! By the way this is in the java language.

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Space Invaders Game - Collision Detection

Apr 19, 2014

I'm working on a space invaders game and I'm having problems with collision detection. My main issue is I'm having problems getting what the y value of the "missile" is as it goes up towards the top of the game. I have tried for many hours and tried to look at other people's space invaders game in an attempt to figure out how to figure out my problem. Also I'm not sure if I have the code for my collision detection in the correct spot. Right now I have the code in the keyPressed method. Below is the code for the main and missle classes ...

import java.awt.Color;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.ArrayList;
import java.util.Iterator;

[Code] ....

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JAVA Platform Game Jumping And Collision

Sep 16, 2014

i have problem in what comes to jumping because in what i have now mario jumps with the key lsitener, key pressed up arrow and it jumps smooth but when im trying to make it fall down he appears immediatly at ground and it doesnt simulate the fall as it should be.

import java.awt.BorderLayout;
import javax.swing.border.EmptyBorder;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.awt.*;
import java.awt.image.*;
import javax.imageio.*;
import java.awt.EventQueue;

[code]....

The other problem is that i dont really know how to detect collisions if there is a method that makes easier this proceso and how to make the map to continue and repeat so mario could continue walking,

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Collision Detection Using Rectangles - Player Sometimes Passes Through The Tiles

May 19, 2014

I have already tried every possible way for removing this bug but all failed. The problem is that sometimes my player passes through the map tiles, i mean, the algorithm is like -- if not colliding, move in required direction; else if colliding, move in opposite direction. But sometimes the second condition fails i dont understand why.

private void movement(){
left=bindObject.getLeft();
right=bindObject.getRight();
up=bindObject.getUp();
down=bindObject.getDown();
bindObject.setColliding(colliding);

[Code] .....

Where bindObject is a class which contains key bindings of following keys:-

left arrow key (when pressed) , left arrow key (when released),
right arrow key (when pressed), right arrow key (when released),
up arrow key (when pressed), up arrow key (when released),
down arrow key (when pressed), down arrow key (when released)

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Unable To Detect Collision Between Moving And Stationary Jbuttons Using Rectangle Intersection

Apr 5, 2014

I am trying to detect the collision between a moving Jbutton and stationary Jbuttons using Rectangle Intersection.

When I run the program I am getting a NullPointerException on line 'msg1.setBounds(new Rectangle(320,50,400,50));'.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class gamePanel01 extends JPanel implements KeyListener {
character ch1 = new character("Hero");
//Global Variables
JButton blocker01;
JButton blocker02;

[Code]...

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