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I am in need of a 2D Tutorial. What I need is the following:


Left and right capibilities
able to shoot some sort of weapon
Able to let enemies move towards player (with basic AI)
scrolling screen



Thanks in Advance!

I shall only lend knowledge, not the code itself.

Moving / scrolling screen:
Left + Right, If player uses arrow keys left or right, speed# will equal 0.09 for right or -0.09 for left

Then you scroll the backgrounds X value by speed#, remembering to reset the speed value back to 0 after this so it doesn't continue scrolling when you stop moving...

Shooting:
If Weapon Fire = 1 then you make the projectile face the direction the gun was aiming, and keep moving it forward until it's out of the screen

Basic AI:
If PlayerY value is greater than computerY value decrease the computerY value
Same with X, then do the opposite for both x and Y
That will just make the "Computer Player" move towards your character


E.g.
____________________________________
---Player1
---()x=50

---------------Computer1
---------------() x = 200
____________________________________

Since the computer x value is greater than the player x value it will decrease the computers X value to move it left *towards the player*

On this very website you can download the L-Type demo game, written in DarkBASIC. It's a side scroller with all the things you mention.

In fact, I'm pretty sure it comes with DBPro, as a sample app.

If not, I'm sure if you search here, you can find it.

Search the codebase amigo, I may do a scroller tutor later though.