Enemy shooting when facing player

[Smakdude]

Hi I am working on a game witch has 4 directional movement and independent mouse aiming. I have enames that shoot in agine 4 directions but I whanna know how to make theme shoot only when thay see the player.

[Daynar]

What factors do you have? Are there walls, can enemies shoot through each other, do they have a max range, do they only check the direction they are facing or do they turn to fire in the direction of the player, and finally do they only fire when the enemy is lined up with the player, or should it fire when the player is in an arc or 'collum' of the enemies sight?

Assuming you want them to shoot only when they see a player, but have no other restrictions or turning

if collision_line(x,y,oPlayer.x,oPlayer.y,/* objects that may block view */,false,true) = noone
{
//shoot
}