Solid Walls in Playfield

[jamesorgames_312]

I need help making my Playfield walls solid so my two sprites (player0 and player1) can not go through them, just like in Pac-Man and Maze Craze. That would be awesome. I will leave my current code so anybody can help. Thank you so much!

 

P.S I'm new to batari basic.

default.bas

[+Random Terrain]

Check out some of the example programs on the bB page:

 

randomterrain.com/atari-2600-memories-batari-basic-commands.html#sprite_collision_example

 

randomterrain.com/atari-2600-memories-batari-basic-commands.html#maze_32x12

 

 

This might also be semi-helpful:

 

atariage.com/forums/topic/239220-collision-prevention-with-adjustable-sprite-height-and-width/

[jamesorgames_312]

I did and the code made only my player0 not move through walls, but my player1 was a different color and did not move towards me like he was supposed to!

Edited August 17, 2015 by jamesorgames_312

[Papa]

I always do something like...

 

if player0x<15 then player0x=15 (possible limit for left side)

if player1x<15 then player1x=15

if player0x>125 then player0x=125 (possible limit for right side)

if player1x>125 then player1x=125

 

This would form two barriers on the left and right side of the screen that neither players can go through.

[bogax]

figure out where you want to move to then check it for a playfield pixel there.

if there is, don't move (or bounce or something)

if there isn't then move.

platfield pixels are 8 pixels wide (in the standard kernel) and are offset

from the player's position (playfield pixel 0 covers player positions 10..17

(or something, forget the offset))

the playfield pixels are in var0..var43

bit 7 of var0 is playfield pixel 0 (top left)

var0..var3 are the first (top) line of the playfield, var4..var7 the second line, etc

some of the bytes are reversed (instead of bit 7..0 going left to right some are 0..7

going left to right)