Hi! I have a problem with my code here. When I try to access this scruct array i have, it won’t let me access the actual array space i, but rather it gives me the same array values over and over until it’s done. Do any of you see the error? This is a relatively short except out of my code, the names of the functions are correct, don’t worry about that. However, whenever I try to use draw_boxes, it will only ever give me position 0 of boxes[], the first in the array boxes[]; no more, and thereby not giving out what i want. Please keep in mind that I’m an IT student in his first semester, with no previous experience in programming in c++. Something that might be obvious to you isn’t gonna be as obvious to me.

#include <iostream>
#define CIMGGIP_MAIN
#include "CImgGIP05.h"
using namespace std;

struct Box
{
    int x;
    int y;
    int delta_y;
};

const int box_max = 10, box_size = 40;


void draw_boxes(Box boxes[])
{


    white_background();

    for (int i = 0; i < box_max; i++)
    {
        gip_draw_rectangle(boxes[i].x, boxes[i].y, box_size, box_size,
            blue);
        /* don't mind this, it's something we had in our given header file.
        This line is correct*/
    }
}

int main() {

    Box boxes[box_max] = { 0 };



    for (int i = 0; i < box_max; i++)
    {
        boxes[i].x = i * (box_size + 20) + 10;
        boxes[i].y = 0;
        boxes[i].delta_y = random(10, 30);
    }

    draw_boxes(boxes);

    return 0;
}

When I use the function draw_boxes(), i want it to cycle through my array of boxes[], and not just use one.

The result I get is a syntax error. It will only ever use a single space of boxes[], even though I give it the indexes for the other spaces, so it only works with one set of values.

Thanks for the help in advance!

Your code is ok, but your logic is likely wrong.

Your function gip_draw_rectangle is likely:

gip_draw_rectangle(x1,y1,x2,y2,color);

where you want x2 = x1 + width; and y2 = y1 + height;
Your boxes simply overlap. Last one is drawn over all.

try with:

gip_draw_rectangle(boxes[i].x, boxes[i].y, boxes[i].x + box_size, boxes[i].y + box_size, blue);

The problem here was that the function gip_draw_rectangle() was not documented at all, and the boxes were overlapping over and over! What i wrote was gip_draw_rectangle(boxes[i].x, boxes[i].y, box_size,box_size, blue), when in actuality it should’ve been gip_draw_rectangle(boxes[i].x, boxes[i].y, boxes[i].x + box_size, boxes[i].y + box_size, blue), which would be that one adds the length of the box on top of the x and y coordinates. Thanks for the help!