C/C++ :: Creating Moving Objects For 2D Game
Oct 21, 2014
I'm working on designing a game in C++ that is similar to the "find the ball under the cup" game. I have a Sonic the Hedgehog icon (weird I know, but it was the first thing that came to mind) that will be hidden underneath one of three rectangular blocks.
Here is how I envision this working:
On the main menu I have 3 buttons which represent 3 different difficulty levels
Easy- blocks move 3 times at a slow speed
Medium- blocks move 5 times at a slightly faster speed
Hard- blocks move 10 times at a fast speed
When the user clicks one of these buttons they will be taken to the game screen.
Sonic will be displayed for 3 seconds and the user will then see him be covered with one of the three blocks.
The three blocks will then move in a random pattern along the middle of the screen at the speed and number of times associated with the button that was pressed.
Once the blocks stop moving, the user is to click on the one they think Sonic is underneath.
If they choose correctly, they'll be taken to a "Winning Screen" that displays a congratulatory message and 2 buttons. Play Again- returns the user to the main menu and the game starts over with a new random pattern. Quit- the window closes.
If they choose incorrectly, they'll be taken to a "Losing Screen" that displays a "Try Again" message and 2 buttons that have the same function as the buttons on the winning screen.
I have never worked with any kind of graphics before other than in HTML and Javascript. I have managed to create the main menu, but how to do the actual game portion of the project. I've been trying to take it a step at a time, (for example, I first figured out how to set the background color for the console window, after I got that right I figured out how to add buttons) but the rest of this seems to depend on each other.
Here is what I have so far:
Main menu:
#include "stdafx.h"
#include <iostream>
#include <Windows.h>
using namespace std;
class MainMenu
[Code]....
So I've got the screens pretty much designed now (with the exception of the game screen itself) but how to tie everything together.
In case my description wasn't too clear, here is a game that I found on Google that is pretty much exactly what I'm looking for. [URL]
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Mar 16, 2014
I am creating a game and I using classes for other things in my game, I was wondering if i should use classes for rendering objects?
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Nov 1, 2013
I'm trying to serialize and deserialize objects, some static (that works) one moving (doesn't work). In the code you can see that the following int-variables discribe the moving circle:
object->phaseFarbe=phase1;
object->phaseKoord=phase;
object->rot=a;
[Code].....
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Feb 9, 2013
I am not so experianced with c++ myself, but I need to evaluate if a certain idea might work.
I am working with a system for automation purposes that is running on a realtime OS in parallel to windows. Windows and the RTOS exchange data via shared memory. The application in the RTOS is compiled in C++. Now I would like to be able to influence the some data manipulation tasks in the RTOS application without changing the code of the RTOS application. So a concept like calling a dll.
My idea was to create a class with virtual methods in the RTOS application. The objects that are used should then be created on the Windows side with the same class prototype, but specific implementation of the virtual methods. The objects should then be moved to the shared memory, where they are used by the RTOS application.
Is something like this possible or am I completly on the wrong path?
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Dec 21, 2014
I'm working on my first video game. So far I have a few classes in the game starting with the Game class which includes a list of GameObjects (another class). There are several classes that inherit from GameObjects used to implement things like bullets, explosions, various enemy types, etc.
The game essentially iterates through the list of GameObjects to update/render them. I would like to provide access to the Game's list of GameObjects inside another class (like the Bullet class) so I can put new objects on the list. For example, when a bullet hits, I want to add an explosion to the Game's GameObject list it can be updated/rendered.
How this should be setup? I was considering adding a pointer to the Game or GameObject list to the GameObject class (and methods to access it), but I was wondering if there is a better way to set this up?
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Jun 13, 2014
i want to make moving button or moving box clickable as i am making a game in which i move picture boxes and user clicks on it and his scores increases. but i was unable to do so , so i tried the same concept with buttons but no results.
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Nov 11, 2013
How would I implement a way that i could create as many objects as the user wants?
Let's say every time a user clicks space bar a new cat object would be created, because right now i create lots of objects without initializing and every time i get a input i assign values to the object, the downside is that is limited for the amount of objects i create.
As well i don't want to cause a memory leak, specially in c++ because i need to use the delete keyword.
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Dec 3, 2014
I am working on a video game that is based on a tutorial I found online and I ran into an issue associated with accessing an object's method inside another class object's function without making the object global which seems bad.
Here is basically how the tutorial set things up in the game: The game has a base class called GameObject then there are other child classes that inherit from this class. The GameObject class has all the basic information an object would have that needs rendered on the screen (x/y position, size of bitmap, bitmap, whether or not it is collidable, etc).
One of the child classes SpaceShip, which is the player so it has attributes and methods associated with managing # of lives and points scored.
There are other child classes of GameObjects in the game that need to take life and add points from the SpaceShip object if they collide with the spaceship or other objects.
In the collision handling routine I basically call a function "void Collided(int objectID)" when a game object collides with another. Within the Collided() routine, there is logic that executes code or other functions based on the objectID it collided with. Some of the collisions require taking life from the spaceship or adding points. The way this was accomplished in the tutorial was with function pointers (see Bullet class constructor and collided method for example). Is this really the best way to handle this sort of thing? It seems like there has to be a simpler way than to keep referencing function pointers in any new class I want to add to the game. I realized this when I went to add a method for the spaceship to fire bullets rather than inside my game class.
My Project Source found here: [URL] .....
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Apr 26, 2014
I'm currently working on a 2D space shooter game in C++ using SFML library. What I need to know is how make an object (ex:laser) fire up from object (ex:player) when a user press button??
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Dec 24, 2014
How I can go about creating a computer AI given the way that I structured my code.
main.cpp
Code:
#include <iostream>
#include "Board.h"
#include <limits>
#include <cctype>
using namespace std;
int main() {
// Welcoming message.
[Code] ...
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Nov 4, 2013
Im supposed to create an to array of eight Circle objects initialized with the following radii: 2.5, 4.0, 1.0, 3.0, 6.0, 5.5, 3.5, 2.0. Then use a bubble sort to arrange the objects in ascending order of radius size before displaying the area of each object.
The error I get is "Cannot open include file: 'Circle.h': No such file or directory". Do I have to create a separate file for it?
#include <iostream>
#include <iomanip>
#include "Circle.h"
using namespace std;
class Circle {
public:
Circle()
[Code] ...
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Nov 14, 2014
I'm creating a kind of connect 4 game that will be due on November 30. I'm starting now so that I don't have to worry about it as much later. Anyways, I just started, and I already have some questions/problems. I want to be able to change that numPlayers outside of the function, so I used pointers like my instructor said to, but it is giving me an error that numPlayers(the argument) is not an int*. How do I fix this?
Code:
int numPlayers=0;
void promptNumPlayers(int *numPlayers)
{
printf("Enter the number of players: ");
*numPlayers=readInt(stdin);
if (*numPlayers != 1 && *numPlayers != 2)
}
[code]...
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Nov 11, 2014
Im trying to create something like a menu in a tic tac toe game. I want the computer to ask the user "who starts first" is it the X or the O who starts first? Then the user should type in either X or O but if he types something else i want to ask again .
this is what ive done :
int main () {
printf("
");printf("
");
printf(" %c | %c | %c
", board[1], board[2], board[3]);
[Code] .....
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Jun 13, 2013
what i got so for my code.
#include <iostream>
#include <windows.h>
using namespace System;
using namespace std;
int refreshDisplay(int , int);
const char wHole = '@';
[code]....
count <<" The oblective of the game is for the player to move around a 2 dimensional playing field and capture the star withought falling into a black hole or walking off the edge of the playing field. The controls are W = up S= down A=Left D=Right" <<endl; how implement 3 black hole X characters and 2 wormhole characters on field @ and a star *. all these char has to be randomly generated.
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Apr 4, 2014
i am working on class project in which i have to save the tank from canon....imy tank is moving only when i press the moving key.. and after that i see blank screen what should i do to run my process when i am not pressing moving keys....
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Mar 21, 2015
The only difficulty im having is creating a class and methods & being able to access them from my win form app. Can i get a few tips on the do's and donts of creating classes / methods and accessing them from form app.
This is what i have put together so far.
public partial class Form1 : Form {
private Image[] dicePics;
private int[] diceNum;
private Random randomize;
public Form1() {
InitializeComponent();
[code]....
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Mar 6, 2015
I'm supposed to create a "game" that is similar to Candy Crush or Bejeweled. The assignment takes in a .txt file that contains a matrix of values from 1-5 and then assigns each value to a spot in a [10][10] array. Then an Escape Code function prints out colored pixels in place of the number values for each spot, creating a "game board" looking output. Finally, the program is supposed to look for any matches of 3 same-colored pixels and replace them with a white pixel and "XX". Then the program prints the corrected game board with the matches X'd out.
I have it mostly coded, but I've encountered a couple of issues.
1.) I am supposed to label the columns and rows 0-9, and while I have no problem coding the labels for the columns using printf( ), when I try to print the row labels I get a random string of numbers.
2.) I replaced the matches with white pixels by reassigning the value in the array to 7, for which the ANSI Escape Code is white. However, I'm unsure about how to print the "XX" in the same spot.
Here is the input(.txt) file and the output of the program so far:
And here is what I have coded at this point:
Code:
#include <stdio.h>
void printEscapeCode(int c);
int main(void)
{
/* Declare an image array to be gameboard */
int gameboard[10][10];
/* Declare variables and load in how many rows and columns */
int Nrows;
Nrows = 0;
[code]....
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Feb 13, 2015
I have been given the task of creating a frog leap game that starts at 1 and finishes at 12. The layout is as follows. The '@' symbols are just included to show blank white space.
1-----2 @@ 3---4
|@@ |@@@ |
|@@ |@@@ |
5@@ 6------7-----8
|@@ @@@ |@@ |
|@@ @@@ |@@ |
9----10 @ 11 @12
Each number within the game will represent an object, the user will have to reach the 12th leaf start from leaf 1. the frog can only move in the directions of forwards backwards, left and right. Any starting points? E.g. using and array or list? i have a feeling this is going to be a big task. is inheritance possible?
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Jul 26, 2012
Project compile successfully but console turn off with "Windows " with error doesn't print or get anything
Code:
#ifndef Point_HPP // anti multiply including gates
#define Point_HPP
#include <string>
#include <iostream>
#include <sstream>
#include <cmath>
[Code] .....
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Mar 6, 2015
I want to create a game that will test the attention and mind flexibility of the user. So the challenge is The user will be given 50 rounds, and each round should generate a random combination of text and words.Then the user must Press 'Y' if the UPPER CASE text spells out a color that match the BACKGROUND. But if the text are in LOWERCASE the user must press 'N'.(Note: you can change the keys to any key from the keyboard if you wish to)
Then I also want my program to record the high score each time the program prompts the user if he/she wishes to play again.
I also want to control the combinations by NOT allowing the text color and background color to be the same.
I also want the combination to generate an AVERAGE of 50% correct combination and 50% wrong combinations. The I want to use is only Red, Blue and Green
HIGH SCORE Determinants:
1. Accuracy ( (Number of corrects / 50 ) * 100% ) - The higher the better.
2. Time in seconds (Time Ended - Time Started) - the lower the better.
Computation for high score: 10 000 * ( (Accuracy) - (2 x total Attempts - Time) )
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Mar 27, 2012
I've been having trouble working on this physics engine of mine. Right now I'm having trouble adding gravity.
The game is a spaceship--which you control--flying around in space with asteroids and eventually the ability to shoot bullets. There should be a wrap on the edges of the screen and gravity for each object depending on their mass.
I'm creating a forceX and forceY for each force put onto each object, and then computing that force into a velX and velY which will determine the direction of each object and at which speed.
Where my problem arises:
Code:
//add gravity pulls to forces
for(int i = 0; i <= pushCount; i++) //add gravity pulls for each object {
for(int u = 0 ; u <= pushCount; u++) //each object should add a force for every other object {
if(i != u) {
switch(id[i])
[Code] ....
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Nov 27, 2014
i have a project where i create a dice game, the user rolls 2 dice and the computer roles 2 dice. the player that wins 3 out of 5 rolls wins the game. I have completed the requirements, but i wanted to create a pass by value function for "void Dice()", I'm not too sure how that works?
Code:
#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
//creating my variables and their values
int compinput;
[Code] .....
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Dec 4, 2013
I've got 2 classes, Store and Transaction and I would like to create a priority queue of objects Transaction as a variable of Store class.
My store.h
#ifndef __STORE_H_INCLUDED__
#define __STORE_H_INCLUDED__
#include <queue>
using namespace std;
#include "Transaction.h"
struct TransactionCompare;
[Code] ....
The error im getting with this set up is
error C2664: 'bool TransactionCompare::operator ()(const Transaction &,const Transaction &)
const' : cannot convert parameter 1 from 'Transaction *' to 'const Transaction &'
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Feb 19, 2013
How do i read a specific part of a file? I am trying to create a game that reads the prices of an object inputted by the user from a file. This is the code i have so far
#include <iostream>
#include <fstream>
using namespace std;
int main () {
ifstream infile;
infile.open ("Objects.txt", ifstream::in);
[Code] ....
The file contains this :
Example objects
( ) store items
(item) (purchase value)/(sell value)
Grocery Store Items
Fish 5 7
Vegetables 10 15
Drinks 20 30
Weapon Store Items
Pistol 300 375
Rifle 400 500
Ammunition 20 30
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Mar 7, 2013
Here is the code:
// Creating and joining string objects
#include <iostream>
#include <string>
using std::cin;
using std::cout;
using std::endl;
using std::string;
using std::getline;
// List names and ages
void listnames(string names[], string ages[], size_t count) {
[Code] ....
I may be wrong, but the problem seems to be in the function "listnames". Specifically, the output statement inside the while loop. I don't understand , how the ++ operator is behaving in this statement. The output produced does not match what's printed in the book. I usually just type all the examples, but with this one I also downloaded the source code from the book's website to make sure the error wasn't due to mistyping.
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Jan 16, 2013
Please consider the following code :
#include <iostream>
using namespace std;
class superclass;
class subclass1;
class subclass2;
[Code] ....
As you can see I want to create a dynamically allocated storage of references to a parent class each of which can then point to a child class, how ever I do not know how to extract the child class out again from that array so i may access its variable b.
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