Detecting and changing block?

[yeoldegamersteve]

Sorry for spamming the board with more newbie questions but how do I 'detect' what block the player is touching?

I have like an empty box block and a filled box block, when the player walks over the empty blocks I want to replace them with filled blocks.

But I'm unsure how to detect the block as I believe (possibly wrongly) that the collision command is for sprites only?

[Doug Bagnall]

Hi, Yes the collision command is for sprites. You could try objects and use the DETECTOBJ command to find out which OBJ the player has just touched.

[yeoldegamersteve]

I'll see if I can use that, thank you!

Edit: ahh.. no can't get that to work.

I want an effect like this: www.youtube.com/watch?v=EZ1U1_hy89w

When you walk along a platform you colour it in, bit by bit.

[manu128k]

I'm still an AGD newbie myself but my two cents here: You could try with Custom type blocks and a dummy empty sprite. I think you can modify the colour of blocks by changing the attributes of the dummy sprite in the same location. Be warned that if the player or some other sprites pass through it, it may mess their attributes, but if the paintable blocks are supposed to behave like solid wall, you could get away with it.

Hope it helps

[yeoldegamersteve]

Sept 22, 2018 0:22:52 GMT manu128k said:

I'm still an AGD newbie myself but my two cents here: You could try with Custom type blocks and a dummy empty sprite. I think you can modify the colour of blocks by changing the attributes of the dummy sprite in the same location. Be warned that if the player or some other sprites pass through it, it may mess their attributes, but if the paintable blocks are supposed to behave like solid wall, you could get away with it.

Hope it helps

That would be a good workaround but aren't you limited to 12 sprites on screen at any one time?  Sure I read that somewhere.

[manu128k]

Hmm, let's see.. We have two different problems here:

1) Detecting you have stepped on a 'special' block
2) Changing its colour when needed

For 1) you have custom type blocks and the CUSTOM command, so as I see it, you have this covered. I think this point should be easy to do, please say if you have problems, an I'll elaborate on this.

For 2) after some thoughts, I think the easiest way could be to have a different colour block and use putblock over the other one. Never done it but it sounds to me like it could work too

What do you think??

[highrise]

I've done a new video on a simple assembly solution, here:

youtu.be/0pGcwYh9hOs

Hope you find it useful.