I finished the test using the maths but yours is so simply, elegant...! I didn't take a look to the angle movement actions until now <img src="smileys/smiley17.gif" border="0" align="middle" /> For that I was using bullet for movement. Anyway if somebody wish take a look making it in the really noob way <img src="smileys/smiley2.gif" border="0" align="middle" />:

dl.dropbox.com/u/47230303/rotation_combat_test.capx

Thanks you very much!

PD: The movement of the object in your example appears increase his radius in the movement left/right. Can it be some estrange angle conversion from SC2 ? Anyway, is so perfect at is! <img src="smileys/smiley1.gif" border="0" align="middle" />

Thanks for reply! Hehehe I put a bad delay for the frames in the gif :P

I had the formula just there for use it, I think must be something like this (I just wake up in this moment, I don't test it):

player.Y:

mouse.Y + int(Round( distance (mouse.X,mouse.Y,player.X,player.Y)* Sin( player.angle ) ));

player.X:

mouse.X + int(Round( distance (mouse.X,mouse.Y,player.X,player.Y) * Cos( player.angle ) ));

I will confirm if this works here :D

My project had some particular movement, the player moves forward (with W or back with S) to a point given by mouse (that's done) . Then, the movement to left and right is around it, without change the distance (unless we use the W and S, of course), in few words, the player moves in a circle around the mouse cursor. There is some function of archive this or I must use maths ?

Here a diagram:   

s7.postimage.org/v15cnej23/idea_001_zpsd397be6b.gif

I'm having a little problem with this: Under firefox (I didn't test the rest), the navigator test to start loading the page (moving icon), but not stops the game and don't go anywhere, until I change to another tab, then works.

In exchange, the 'in new window' seems to work.

Someone can confirm this?

If it run HTML5, we can play it.

Boolean, I didn't notice that condition, really useful, thanks you!

Well: My first idea for one solution: "Put an zone around the player using overlapping for the monsters, lava pits, spikes..." but if somebody had a better one, please say it!

And thanks for the welcome GeometriX

Wow, so fast reply! The tip about the green arrow is so useful, thanks.

The "Is overlapping ... " not work for this situation because the monster ( I forgot say it, sorry) had the "SOLID" behaviour. The hero the platform one. So must be another solution...

I had problem with the collision between my player and a monster. Using "on collision with... " my player take damage in the first contact, but if I leave the player over the monster, the player don't take more damage unless I separate him and make it collide again. There is a form of trigger the collision every tick?

And I'm new here. The program is the most easy and intuitive I ever seen. Really fun at end of the day!

EDIT: I forgot say it, sorry: the monster had the "SOLID" behaviour. The hero the platform one.