C/C++ :: How To Accumulate Reduction In Health Points In The Loop
Feb 22, 2014
How to accumulate the reduction in health points in the loop. I have structured my program so it calls to 2 functions during the loop. These are the playerStrike() and computerStrike(). They seem to be looping well with the one exception that the counters reset back to 100 health points each time. I know it's reloading the original variable amount but how to prevent it from doing this.
#include <iostream>
#include <iomanip>
#include <cmath>
#include <ctime>
#include <cstdlib>
using namespace std;
//function prototypes
void playerStrike();
void computerStrike();
[Code] ...
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Nov 26, 2014
I'm currently involved in an embedded (cortex M3) C++ project where we're about to run out of flash.
A quick check of the map file give that, in our case, the destructors consume about 10-15% of the available space. Since we're allocating all things that are needed at startup but never delete anything (both a requirement & also impossible due to the lack of a proper memory manager) the thought of getting rid of all destructors in the target build is appealing.
I know that this question is somewhat crazy/desperate but is there a safe way of telling gcc not to emit any code for destructors? If so, can that be made in such a way that a linker error catch for instance mistakes such as creating an object on stack?
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Mar 10, 2014
How i can set if health 0 game end?
#include <Windows.h>
#include <iostream>
#include <BluetoothAPIs.h>
#include <ws2bth.h>
bool Move(int xadj, int yadj);
void LoadMap();
void DrawScreen();
[Code] ....
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Nov 27, 2014
I have a program I want to write that determines the health of a power transformer. I know the syntax of all the other code I might have to use but I'm not too sure of how to make it fit into a graphic interface like you see in any other windows program.
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Nov 3, 2014
Example: In a 2-D space, point A=(a1,a2) is bigger than point B=(b1,b2), if a1>b1 and a2>b2.
How do I write a presudo code to find all the maximal points among the given n points?
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Apr 19, 2014
i'm working on a robotics project, to move the robot from it's current position to target position i need to calculate the angle first before i can move the robot.this the code I use to calculate the angle:
double cal_angle ( int current_x , int current_y , int tar_x , int tar_y )
{
return atan2(tar_y - current_y, tar_x - current_x);
}
int main ()
[code]....
as u can see the angle between x4,y4 to x1,y1 should be 3.14 (180)however , the result are correct as long as the distance from the current position to target position > 1 (not sure actually).
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Apr 14, 2013
Write a program that creates the output shown in the Output Layout section below. The program should create 2 points with x and y coordinates as integers, prompt the user to input the x and y values for one of the points and randomly set the other (-99 to 99 range) and output the length of the radius line segment and the area of the circle that radius defines. The program should then end. Include an SDM for the program and any other appropriate documentation.
Special Calculations:
Distance between 2 points equation:
√((p0x – p1x)2 + (p0y – p1y)2) (This requires use of the math library)
Output Layout: (bold text represents user input)
Please enter the location of your first point.
Enter a value from -99 to 99 for your x coordinate: -2
Enter a value from -99 to 99 for your y coordinate: 17
The location of your second randomly set point.
Your x coordinate: 45
Your y coordinate: -89
The length of the radius line segment from point one to point two is 115.
The area of the circle with a radius of 115 is 41546.33.
Other:
int pAx;
int pAy;
int pBx;
int pBy;
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Nov 7, 2013
I have 2D points written in {x1, y1, x2, y2, x3, y3, .....}
#include <iostream>
#include <vector>
#include <math.h>
#include <algorithm>
using namespace std;
int main() {
vector<double> vec;
vector<double> vec_ordered;
[Code] .....
Result.
6 4
6 3
6 2
6 1
5 5
5 1
4 4
4 1
3 3
3 1
2 2
2 1
1 1
which wrong result
I wanted to make
6 3
6 2
6 1
5 1
4 1
3 1
2 1
1 1
2 2
3 3
4 4
5 5
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Nov 10, 2013
I am making a game and I am trying to rotate an image so that it is always pointing at the player. I have two lines, the first point of both of them is on the image and the second point of one line is on the last position of the player, and the second point of the other one is on the current position of the player. To rotate the image I need to get the angle between the two lines. how I can get that angle with only the points from the lines?
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May 15, 2014
It ougth to calculate the distance between two point (p1,p2)
"main.cpp"
#include "distancia.h"
void main () {
Point p1,p2;
[code]....
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Jul 23, 2013
This is the source code.
--------------------------------------------------------------------------------
#include <iostream>
#include <windows.h>
using namespace std;
int main(){
[Code]....
When I type a word, it gives me the first letter of the word, then a symbol, or nothing.
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Oct 29, 2014
In the following code I don't understand why am I splitting the y left and y right.
(closest distance between 2 points in 2D)
Am I splitting the y left and y right so that I can concatenate them afterwards and then build the strip,only according to these concatenated halves ?
PS : Finding the min. distance between sorted x right and x left works fine , only problem is with the strip.
#ifndef CLOSESTPAIR_H_
#define CLOSESTPAIR_H_
#include <float.h>
#include <math.h>
typedef struct Point2D {
double x;
double y;
[code].....
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Oct 25, 2013
I'm implementing a quad tree for an assignment, and I'm not sure if every node should contain a list of pointers to every Point in its sub tree (implying the root node will contain all Points), or if only leaf nodes should contain the Points.
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Oct 16, 2014
Today i am going find out solution of two ellipses intersection points using C programming, I solved using geometry equation substitute method but i am not unable to do same thing in C programming.I am talking example as following two ellipses (x^2)/4+y^2=1 , ((x-2)^2)/4+y^2=1
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Feb 23, 2013
As homework we were assigned to enter the following code to calculate the distance between two points on the x and y plane. The program should ask the user to enter two points then should calculate the distance between two points and print the distance on the screen.
My program will compile correctly but when attempting to run the actual program it doesnt do anything and some how completely skips over my main function...
Code:
#include <stdio.h>
#include <math.h>
struct point {
float x;
float y;
[Code] ....
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Jun 22, 2013
Any class or library that can to calculate the center and radius of a sphere from 4 known points on its surface?
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Mar 5, 2013
I have a program that is trying to find all factors of an integer given. It needs to be done in a recursion function. Right now i have code similar to just getting the prime factors of a integer.
unsigned int * find_factors_using_recursion(unsigned int x ) {
unsigned int * factor = new unsigned int[];//do i put x in here ?
for(unsigned int i = 2; i < x; ++i) {
if(x % i == 0) {
find_factors_using_recursion(x / i);
*factor = (factor[i] = i);
} }
return factor;
delete [] factor;
}
When i cout the *factor = (factor[i] = i) it gives me the prime numbers of the integer passed into the function but when I return the pointer it only returns one of the prime numbers. I'm new to c++, how to return pointers from functions that would be great with an example to go with it.
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Sep 25, 2013
I'm creating a quick program to calculate midpoint and distance between two points. I'm having a little trouble. This is the program:
//This program is a start to solve basic coordinatre plane distances and midpoints
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
using namespace std;
int main(int nNumberofArgs, char* pszArgs[]){
cout << "This is a calculator to find distance and the midpoint between two points. " ;
[Code]...
the problem is that the output for both equations is wrong, it doesn't do the math properly and I assume it has to do with the variable types I'm using but am not sure. P.S. I am using the latest version of DEV-C++
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Feb 19, 2013
I was wondering if there was a way to set up a code with an array of variable dimensions that removed random points on that array i.e.
1111
1111
1111
then randomly remove a point:
1101
1111
1111
and then be able to repeat this process until all points are removed.
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Jan 26, 2015
How to calculate steepness or incline from 3 to 4 points in a 3D(xyz) point?
I'm trying to calculate steepness to determine if i can or cannot place objects on a super steep elevation in a 3D game?
My initial thinking was to add up all angles then divide by 4? I'm not a match major and I am not finding any information online.
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Nov 16, 2014
I'm playing with my final year project, building a game boy emulator in C, and I wanted to try out something to streamline my code base. I'm building against Win32, GNU C and Googles Native Client.There are no platform specific headers or functions in use. What I'm trying to do is have a file that conditionally includes the entry point (so _tmain for Windows etc) based on a preprocessor directive being set/not-set.
[note] I realise I could write both entry point classes in one file and use the preprocessor directive in there, but it's not as neat as a single file calling in one or the other. I figure this should work because I can conditionally include headers for Win/NaCl (providing the signatures match, of course).
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Nov 22, 2014
I have a bit map which I wants to re-size according to new point. But on Paint Event Method getting error not Implemented.
CODE Under Paint Event Method
private void pictureBox3_Paint(object sender, PaintEventArgs e) {
Point[] destinationPoints = {new Point(200, 20),new Point(110, 100),new Point(250, 30), new Point(250, 30) };
Image image = new Bitmap("D:\APP\Resources\MyPic.Png");
// Draw the image mapped to the parallelogram.
e.Graphics.DrawImage(image, destinationPoints);
}
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Nov 27, 2013
I have been trying for hours to create a specific prototype program that determines a pascal's triangle for a give number of rows. However, prototype must have the return type of int**. I just recently learnt about pointers, why my attempt of the function doesn't work. As well, i am not sure how I can check if my return value actually points to the pascal triangle.
Code:
#include <stdio.h>
#include <stdlib.h>
int **getPascalTriangle(int n)
}
[code]....
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Feb 24, 2015
I am trying to write a function that calculates the Euclidean distance between two points described by
𝑑𝑖𝑠𝑡𝑎𝑛𝑐𝑒 = √(𝑥1 − 𝑥2)2 + (𝑦1 − 𝑦2)2
Input Prompt
Enter x1, y1, and x2, y2:
Output Prompt
The distance is XXXX.XXX
Replace XXXX.XXX with the calculated distance precise to three decimal points.
Will this be a smilier input to the same forum that wasted posted a few years ago on this site?
Here is the link... [URL]..
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Oct 8, 2014
In this project you are asked to find K nearest neighbors of all points on a 2D space. The distance metric that you are going to use is simply the Euclidean distance example;
inputs:
10 2
3.57 3.18
84.91 27.69
93.40 4.62
67.87 9.71
75.77 82.35
74.31 69.48
39.22 31.71
65.55 95.02
17.12 3.44
70.60 43.87
Outputs:
1 9 7
2 10 3
3 2 4
4 2 3
5 6 8
6 5 10
7 10 9
8 5 6
9 1 7
10 2 6
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Oct 31, 2014
I am working on a computer program where I need to generate points on a circle. I am familiar with this kind of algorithm:
for(d=0; d<=2*pi; d+=0.01)
{
x = cos(d)*radius;
y = sin(d)*radius;
}
However, due to the specifics of the program I am writing, I need to iterate through a fixed number of points one at a time, like so:
for ( int x = 0; x < blockSize; x++ )
{
y = ???
}
This essentially "fixes" one axis of the circle, since I can't do: x=rx+sin(d)*r.
I have tried simply: "y = sin(d)*radius;" and I get a curved shape, but it's not a circle.
My question then is, how do I get the value of y in this situation, where the x axis is incrementing by 1 through a range of values? Is it mathematically possible?
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