I'm trying to make a tower defense game, And right now I'm trying to get the enemies to follow a set path. I have a list with pairs of x and y coordinates, which are placed so that the enemy can move in a perfectly straight lines from point to point without looking janky. However, I want the enemy to move at a set speed rather than just taking a set time to move from point to point (Glide Block), because all the points are at different distances than each other. I tried employing this kind of strategy:

if <(X) < (Destination X)> then
change x by (Speed)
end

But then if the distance x needs to move is not the same a y or vice versa. So if I wanted to move to a point with a slightly lower y but much farther x, the sprite would quickly move down, stop, and go the full y distance, which could look pretty janky.

So what I'm saying is, I need some exact block substitution for the “glide to x, y” block, except using a set speed rather than duration.

This was really difficult to explain.

One solution would be to solve for the glide duration based on the speed and distance to the next point. For example:

set [Distance X v] to ((Destination X) - (x position))//calculates distance to point in x-direction
set [Distance Y v] to ((Destination Y) - (y position))//calculates distance to point in y-direction
set [Total distance v] to ([sqrt v] of (((Distance X) * (Distance X)) + ((Distance Y) * (Distance Y))))//calculates straight-line distance
set [time v] to ((Total distance) / (Speed))//calculates glide time
glide (time) secs to x: (Destination X) y: (Destination Y)

This assumes that the speed is in units per second (so, a speed of 10 could move 10 units in either the x or y direction in 1 second). I'm not sure if that makes sense, but let me know if that helps (or if you have any questions).

groko13 wrote:

One solution would be to solve for the glide duration based on the speed and distance to the next point. For example:

set [Distance X v] to ((Destination X) - (x position))//calculates distance to point in x-direction
set [Distance Y v] to ((Destination Y) - (y position))//calculates distance to point in y-direction
set [Total distance v] to ([sqrt v] of (((Distance X) * (Distance X)) + ((Distance Y) * (Distance Y))))//calculates straight-line distance
set [time v] to ((Total distance) / (Speed))//calculates glide time
glide (time) secs to x: (Destination X) y: (Destination Y)

This assumes that the speed is in units per second (so, a speed of 10 could move 10 units in either the x or y direction in 1 second). I'm not sure if that makes sense, but let me know if that helps (or if you have any questions).

Wow, Thanks!