c++ question about Sub procedures

[Jim121]

I the following code in my program but the compiler says that x, y and z are not declared. thanks in advance.

Code: Select all

 
int ang(float x,float y, float z, float angle_xz, float angle_yz, float distance){
    if(angle_xz<=90){
             y=distance*sin(angle_xz/60);
             z=distance*cos(angle_xz/60);
    }
    if(angle_xz>90 && angle_xz<=180){
             y=distance*sin((angle_xz-90)/60);
             z=distance*cos((angle_xz-90)/60);
    }
    if(angle_xz>180 && angle_xz<=270){
             y=distance*sin((angle_xz-180)/60);
             z=distance*cos((angle_xz-180)/60);
    }
    if(angle_xz>270){
             y=distance*sin((angle_xz-270)/60);
             z=distance*cos((angle_xz-270)/60);
    }
}

Code: Select all

ang(rect_basic_bronze_axe[i].x,rect_basic_bronze_axe[i].y,rect_basic_bronze_axe[i].z,rect_basic_bronze_axe[i].direction_xz,
             0,10);
        rect_basic_bronze_axe[i].x=rect_basic_bronze_axe[i].x+x;
        rect_basic_bronze_axe[i].y=rect_basic_bronze_axe[i].y+y;
        rect_basic_bronze_axe[i].z=rect_basic_bronze_axe[i].z+z;

[aungsithu]

rect_basic_bronze_axe.x=rect_basic_bronze_axe.x+x;
rect_basic_bronze_axe.y=rect_basic_bronze_axe.y+y;
rect_basic_bronze_axe.z=rect_basic_bronze_axe.z+z;


Where these underlined x,y,z came from?

[JP]

Yeah your compiler should have told you which line numbers give the errors and will probably pointed to the same ones as aungsithu pointed out. From your code snippet they certainly don't seem to be coming from anywhere sensible but it's hard to tell!

[asparagusx]

I also can't see how you are going to change the values in the ang function :

int ang(float x,float y, float z, float angle_xz, float angle_yz, float distance)

In the code you are changing x,y,z, but they are not declared correclty - you either have to define them as

float &x or
float *x (as an example)

if declared as float *

then use

*x = ........

Anton

[Jim121]

thanks
I should have seen it before the variables are not declared as global variables meaning that any where out of the sub they would be existent.