Scratch

Thanks for your velocity tutorial is has helped a lot!

Adding these functions has again created some problems with my overall game. Can anyone answer questions regarding the projectiles, and changing direction with velocity.

1. I have used the script for the bullet and something does fire out. But it only ever comes from the one direction. I plan on having it shoot from the from of the tank sprite.  No matter how I position my tank. Would I have to attach a sprite onto my tank sprite and aim it somehow in the front direction?

2. The velocity movement has worked. But the directional input is not the same as it was without velocity. Orginally I had the tank being able to turn in directions and move at the same time. But now with the velocity it does not move in the direction it's pointing to. Instead the sprite turns to a diffrent direction but continues to move in the same direction.

Sorry for the long post, and again any help would be great.

Thanks.

Last edited by Kokan (2009-10-08 14:40:14)

As for wrapping the tanks, here are my thoughts...
When moving a sprite off the Scratch screen, it will not go completely off before it disappears. If these blinking edges do not bother you (or you could fit everything else to them I guess) then all you have to do is set your tanks so that when they move so far left or right, they hide, move to 480 pixels the other way, show, and continue moving.

As for sprites not going completely off the stage before disappearing, I figured out that regardless of the sprite's size, it will disappearing when it has less than 18 pixels showing on the edge of the stage. So I made a border sprite that goes around the screen and covers up the "blinking" gap. You can see it here... ps. the cat would be representative of your tank. Although it doesn't move, except briefly to run away from you, it will wrap around the screen. Much more obvious is the scrolling background. It is made of 4 sprites that all seam together. They are all 480x360. When one of them goes off the side, it immediately goes to the other. This is what gives my floor the scrolling effect. Is based on the scrollx routine but I'm guessing you could do with a far simpler version.

http://scratch.mit.edu/projects/Locomule/707613

This is the bullet sprite I am using. Bullets do come out but at a awkard directions that I do not have control over.


This was the first movement I used for my tanks, this is currently still the blocks for second player which is working perfectly fine. I am using it as a comparison for Sprite 1.


For first player I have the velocity attempt. I'm not sure how to add the ability to turn and move forward and back in the pointed direction.


Thanks for anyone taking the time to look.

Last edited by Kokan (2009-10-09 06:22:04)

Kokan wrote:

Thanks for your velocity tutorial is has helped a lot!

Adding these functions has again created some problems with my overall game. Can anyone answer questions regarding the projectiles, and changing direction with velocity.

1. I have used the script for the bullet and something does fire out. But it only ever comes from the one direction. I plan on having it shoot from the from of the tank sprite.  No matter how I position my tank. Would I have to attach a sprite onto my tank sprite and aim it somehow in the front direction?

2. The velocity movement has worked. But the directional input is not the same as it was without velocity. Orginally I had the tank being able to turn in directions and move at the same time. But now with the velocity it does not move in the direction it's pointing to. Instead the sprite turns to a diffrent direction but continues to move in the same direction.

Sorry for the long post, and again any help would be great.

Thanks.

I'm glad I could help    I will try to remember how to do multidirectional shooting and post later if I do.