I'm having a problem with my struct I believe.

```
struct GLPoint
{
int x;
int y;
};
int totalmarbles = 64;
GLPoint midhold[64];
double dist(GLPoint a, GLPoint b)
{
double distance = sqrt(pow(a.x - b.x, 2) + pow(a.y - b.y, 2));
return distance;
}
void init(void)
{
glClearColor (1.0, 1.0, 1.0, 0.0);
glShadeModel (GL_SMOOTH);
}
GLPoint mid(GLPoint A, GLPoint B)
{
GLPoint midpt = ((A.x + B.x)/2, (A.y + B.y)/2);
return midpt;
}
void storemids(int q, GLPoint A)
{
midhold[q] = A;
}
void vertices()
{
int total = 0;
int x = 0; int y = 0;
int x1, y1, x2, y2, x3, y3, x4, y4;
x1 = x; y1 = y;
x2 = x + 100; y2 = y;
x3 = x + 100; y3 = y + 100;
x4 = x; y4 = y + 100;
GLPoint P = (x1, y1);
GLPoint Q = (x2, y2);
GLPoint R = (x3, y3);
GLPoint S = (x4, y4);
GLPoint vertices[totalmarbles];
vertices[total] = P; vertices[total+1] = Q;
vertices[total+2] = R; vertices[total+3] = S;
total += 4;
while(y < 600)
{
while(x <= 700)
{
x += 100;
x1 = x; y1 = y;
x2 = x + 100; y2 = y;
x3 = x + 100; y3 = y + 100;
x4 = x; y4 = y + 100;
GLPoint P = (x1, y1);
GLPoint Q = (x2, y2);
GLPoint R = (x3, y3);
GLPoint S = (x4, y4);
vertices[i] = P; vertices[i+1] = Q;
vertices[i+2] = R; vertices[i+3] = S;
total += 4;
}
x = 0; y += 75;
x1 = x; y1 = y;
x2 = x + 100; y2 = y;
x3 = x + 100; y3 = y + 100;
x4 = x; y4 = y + 100;
GLPoint P = (x1, y1);
GLPoint Q = (x2, y2);
GLPoint R = (x3, y3);
GLPoint S = (x4, y4);
vertices[i] = P; vertices[i+1] = Q;
vertices[i+2] = R; vertices[i+3] = S;
total += 4;
}
while(x <= 700)
{
x += 100; y = 700;
x1 = x; y1 = y;
x2 = x + 100; y2 = y;
x3 = x + 100; y3 = y + 100;
x4 = x; y4 = y + 100;
GLPoint P = (x1, y1);
GLPoint Q = (x2, y2);
GLPoint R = (x3, y3);
GLPoint S = (x4, y4);
vertices[i] = P; vertices[i+1] = Q;
vertices[i+2] = R; vertices[i+3] = S;
total += 4;
}
}
```

And here are my errors

```
project.cpp:34:49: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp: In function ‘void vertices()’:
project.cpp:52:22: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:53:22: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:54:22: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:55:22: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:69:26: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:70:26: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:71:26: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:72:26: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:73:16: error: ‘i’ was not declared in this scope
project.cpp:82:24: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:83:24: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:84:24: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:85:24: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:86:14: error: ‘i’ was not declared in this scope
project.cpp:99:25: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:100:25: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:101:25: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:102:25: error: conversion from ‘int’ to non-scalar type ‘GLPoint’ requested
project.cpp:103:15: error: ‘i’ was not declared in this scope
project.cpp: In function ‘void drawrectangles()’:
project.cpp:114:24: error: expected primary-expression before ‘int’
```