So, nobody has an idea how to get the right tile on collision ?

How dumb I am.

Hi,

On my capx, standard phycic behavior seems to be more accurate than chipmunk regarding collisions. What did I do wrong ?

http://canapin.com/construct/tests/physicstiles/

[attachment=0:2zggrgmn]physicstile.png[/attachment:2zggrgmn]

[attachment=1:2zggrgmn]physicstile.capx[/attachment:2zggrgmn]

Thank you.

I have a similar problem here : http://canapin.com/construct/tolilo/09/

Left click to shoot (X if you have a plugged in gamepad).

The bullet is supposed to bounce of the green tiles, but sometimes it targets the next tile.

Plus, the bullet and the tilemap having a physic behavior, sometimes the bullet bounces of a tile but the event "bullet on collision with tile" is not triggered, that's why it sometimes bounces on purple tiles even if it shouldn't.

[attachment=0:37q04z5p]targettiles.png[/attachment:37q04z5p]

(event 2 tests if it is a green tile)

What should I do ?

Hi.

I would like to erase a lot of tiles in the editor. There is a rectangle tile editor but I think it can be only used to draw tiles, not to erase them.

Any quick way to do this ?

Works well, thanks

Amazing, thanks !

That's cool.

Do you know why the overlap events is faster than the collision one ?

Aside from this, I made three tests about my stuff with tiles (6480).

When the left mouse button is down, it constantly destroys the tiles in a 6 tiles radius and set a timer for each tile, which value depending how far the tile is from the mouse coordinates.

1) Only with a small array : I fill an array when clicking and set my timers in it. When a tile respawns, its reference is removed from the array. Worst performances.

2) With sprites spawned only when a tile is destroyed. Sprites contains each destroyed tiles timer and they are picked up regarding their XY coordinates (the same as the current tile). Bad performances, not as much as the array solution.

3) With sprites as the previous ones but with a big array, as the sprites UID are stored in it and so they are picked up by UID. Excellent performances.

That's quite interesting. Can you attach the two capx ?

About my project, I'm now trying to stick to tilemaps (and arrays to store additionnal informations for each tile) rather than spawning some blocks. I'm not sure yet which method I'll use.

If I use some sprites only for destroyed blocks (just to set a timer behavior and maybe one or two variables), I'll have I think 100; 200 or 300 sprites at the same time instead of 4000 so it could be fast enough.

Storing my data (including my timers for each destroyed tile) into an array would, I think, give better performances, thought it's more complicated to handle with events.

I'll try to do some tests with both methods.

I managed to achieve what I wanted : http://canapin.com/construct/tolilo/07/

I noticed the game slows down when there are many projectiles on the screen.

My guess is that the event "projectile on collision with block" (where block is a sprite) iterates over all the block sprites, which are still about 4000. So, if there are 10 projectiles on screen, it iterates over 10*4000 tiles on a tick. Is that right ?

So I guess I'll going back to tiles and find a way to manage stuff like timer regeneration for reach tile.

It's also an indian flat bread.