Ways to limit player sprite movement.

[kanonet]

Short answer:

lets say your code looks like this:

Code (glbasic) Select Expand

// inside main loop:
IF KEY(32) THEN INC dirx
Then you would replace it with this:

Code (glbasic) Select Expand

// on game start, before the main loop
LOCAL backward AS Tkey
backward.SET(32)

// inside your main loop:
IF backward.DOWN() THEN INC dirx

[Lord_TNK]

Short answer:

lets say your code looks like this:

Code (glbasic) Select Expand

// inside main loop:
IF KEY(32) THEN INC dirx
Then you would replace it with this:

Code (glbasic) Select Expand

// on game start, before the main loop
LOCAL backward AS Tkey
backward.SET(32)

// inside your main loop:
IF backward.DOWN() THEN INC dirx

Would that be all, or would I need to do more?

I just tried so many things, and nothing seems to have any effect on the constant movement of the sprite (as in any way to pause or halt it, not the speed).

[kanonet]

This is just to show you how you replace one key with my routine, wasnt that your question? Of cause you would need to do more for the other keys.

And your changing of the movement speed is independent from this, can be done with it and without, just in the way you like it. Did you have a look at this one?: http://www.glbasic.com/forum/index.php?topic=5297.msg41251#msg41251

[Lord_TNK]

This is just to show you how you replace one key with my routine, wasnt that your question? Of cause you would need to do more for the other keys.

And your changing of the movement speed is independent from this, can be done with it and without, just in the way you like it. Did you have a look at this one?: http://www.glbasic.com/forum/index.php?topic=5297.msg41251#msg41251

1. What I meant was if I could just use that code for each key and then just run it, or if I needed to put any more codes in there.

2. I wrote "not movement speed". I had already figured that one out. I did point out a dash button in the code after all. I meant halting the movement, even temporarily.

[kanonet]

1. Its the code thats needed for one key. If you want to replace multiple keys, you need to do this for each key.

2. Im not sure if I understand what you mean, but if you want to stop movement, just set spritespeed to 0 or set dirx and diry to 0.

[Lord_TNK]

1. Its the code thats needed for one key. If you want to replace multiple keys, you need to do this for each key.

2. Im not sure if I understand what you mean, but if you want to stop movement, just set spritespeed to 0 or set dirx and diry to 0.

1. I meant if there was anything to add other than the LOCAL declaration and the IF adjustments. If that's it, I'll try it out today.

2. I meant moving the sprite one increment, and then either stopping or waiting a split second before moving anymore. If the code you gave can do that, awesome.

[kanonet]

1. You need the LOCAL and the SET at the beginning of the program for each key. And obviously you need the adjustment of the IF sentence for each key. Thats all.

2. Sorry i really dont know what you mean, i bet its really easy to do, but it seems, that my English skills are to low to help you here, sorry for that. Maybe someone else can do it.

[Moru]

I think #2 is easing. A way of not moving full speed all the time but move at a lower speed, not one pixel each screen update. Faster computer = faster moving.

Try any of these:
http://www.glbasic.com/forum/index.php?topic=8530.0
http://www.glbasic.com/forum/index.php?topic=5892.msg46443#msg46443

[Lord_TNK]

I think #2 is easing. A way of not moving full speed all the time but move at a lower speed, not one pixel each screen update. Faster computer = faster moving.

Try any of these:
http://www.glbasic.com/forum/index.php?topic=8530.0
http://www.glbasic.com/forum/index.php?topic=5892.msg46443#msg46443

I can just set the speed at a lower amount for that. The point is NOT the speed of the movement but causing the movement to not be constant.

[kanonet]

Maybe you can describe what you want to do in other words? Cause I have no idea what you want to do...
Anyway im out for tonight.

[Lord_TNK]

Maybe you can describe what you want to do in other words? Cause I have no idea what you want to do...
Anyway im out for tonight.

Well if you run the code from the first post, or the code I later posted (just pick any picture for the sprite), you will see that the sprite moves smoothly and constantly as long as you press a directional button. I want a way to cause the sprite to move a certain amount, and then either stop moving altogether until the key is released, or wait a certain amount of time before moving again.

The real goal is a way to make the sprite move one "square" at a time, the way player characters in the first six Final Fantasy games moved.

[Moru]

Keep moving until x or y has passed 16 pixels.

[Lord_TNK]

Keep moving until x or y has passed 16 pixels.

How do you put that in code?

[Moru]

This is where that highschool math comes in :-)

If your grid is 16 pixels you can use the command MOD(x,16).
This returns the reminder of the division x/16. When you are on even 16 pixel boundary, it will return 0 so you know when to set the speed to 0 after a keyboard release.

Untested pseudocode since I'm too long away from GLBasic...

Code (glbasic) Select Expand


IF key_down("w")
speed_y = -1
ENDIF

IF key_released("w")
IF MOD(y,16) = 0
speed_y = 0
ENDIF
ENDIF

y = y + speed_y


repeat for each key ofcourse.

[Slydog]

My original code on the first pages attempts to move your player in a grid like fashion.
In my code, the grid was set at 32x32 - it will move 32 pixels each time you click left or right.
Then wait for another key to move another 32 pixels.

I coded it to use a tweening / easing library, but you could replace it with a simple linear ease, meaning it will move at the same speed for the entire 'trip'.

Here's my original post:
http://www.glbasic.com/forum/index.php?topic=8774.msg74593#msg74593