Walk the Dog!

photo of a sitting dog photo of a standing dog

Video Tutorial

Click here for a YouTube video of Lloyd building this project.

(Note: For a "crystal clear" video, you may have to manually change the quality settings in YouTube to "720p HD" - just look for the gear symbol in the bottom right-hand corner of the YouTube window.)

LiveCode File for this Project

Walk the Dog.livecode

Script for the button "Dog"

Important Note: The icon numbers shown below will almost certainly not match the numbers needed in your program. So, be sure to check for the correct numbers (as explained in the video) and update accordingly.

 on mouseDown  
   grab me  
   set the icon of me to 1007  
 end mouseDown  
 on mouseUp  
    set the icon of me to 1006  
 end mouseUp

Advanced Script for the button "Dog"

This script checks to see if the dog is walking left, right, or is not moving. The image of the dog changes accordingly.

An important part of this script is a custom function I created titled "checkDogMovement." Notice the following line of code within this custom function:

send checkDogMovement to me in 50 milliseconds

This creates a loop that repeats as long as the variable varDogWalking is true. I explain this technique in more detail in my explanation with the project "Lunar Hotel Shuttle."

Reminder: The icon numbers shown below will almost certainly not match the numbers needed in your program. So, be sure to check for the correct numbers (as explained in the video) and update accordingly.

 global varx1, varx2, vary1, vary2, varDogWalking  
 on checkDogMovement  
   //if dog goes right, use 1007  
   //if dog goes left, use 1011  
   if varDogWalking is true then  
    put item 1 of the location of button "dog" into varx1  
    put item 2 of the location of button "dog" into vary1  
    if varx1 < varx2 then set the icon of me to 1011  
    if varx1 > varx2 then set the icon of me to 1007  
    if varx1 = varx2 and vary1 = vary2 then set the icon of me to 1006  
    if varx1 = varx2 and vary1 <> vary2 then set the icon of me to 1007  
    put item 1 of the location of button "dog" into varx2  
    put item 2 of the location of button "dog" into vary2  
    send checkDogMovement to me in 50 milliseconds  
   end if  
 end checkDogMovement  
 on mouseDown  
   put item 1 of the location of button "dog" into varx1  
   grab me  
   put true into varDogWalking  
   checkDogMovement  
 end mouseDown  
 on mouseUp  
   put false into varDogWalking  
   set the icon of me to 1006  
 end mouseUp