I made a spaceship. It can move around the screen an shoot lasers when the A button is pressed. I would like to turn this into a game, but sprite collision is a problem for me. Should I use SPHITSP or test the X and Y values?

SPHITSP

From my experience, SPHITSP doesn't work well when a rotation have been applied to a sprite. If your ship doesn't rotate, then you can use SPHITSP. Protip: SPHITSP(SPRITE1) always return the first that overlap SPRITE1, but SPHITSP() return the rest. You can do something like this: var SPHT=SPHITSP(LASER) REPEAT DAMAGESHIP SPHT SPHT=SPHITSP() UNTIL SPHT==-1

Ok, but I had to rotate the laser sprite 180º to get it into position.

I figured it out, but why does rotating the sprites mess it up? Maybe I'll just use more sprites.

Because the hitbox is always a rectangle and when you use SPROT the sprite is rotated but not the hitbox.

Oh. Can that be rotated too?

Yeah, just do SPHOME [SP #],8,8 This should fix it.

Thanks, I'll try that.

mmm... that doesn't fix it. You only set the center point to the point (8,8) I made a clone of the battle system from undertale and discovered that issue with the collision. Here is the key: VENXE33J. Try to collide with the spears.

K

Thanks! This looks amazing, we need more shmups. Would be cool if L and R controlled each laser cannon.

Great idea! I'll post (community post, not comment) a key once I have a shoot-the-enemy thing going.

Awesome! This has real potential!

I plan on making the ship customizable. I also plan on adding tracking missiles and making the enemy an actual enemy. Have you tried my program out yet?