[SOLVED] Collision box and targeting enemies

[Grim Xavier]

So I have a problem with the way my turret targets enemies. currently it checks to see if there's an enemy 750 pixels in front of it, and then attacks that enemy. Here's the code:


if collision_rectangle(x, y-96, x-750, y+32, obj_enemyParent, false, true) {
var stoneAttack
stoneAttack = instance_create(x, y-50, obj_stoneAttack) with (stoneAttack) {
direction = point_direction(x, y, obj_enemyParent.x, obj_enemyParent.y)
}

The problem is that if there's an enemy inside the collision box AND an enemy outside of the collision box at the same time, the turret could very well attack the enemy outside of the collision box, no matter where it is. This is because, as the code reads now, if there's an enemy in the collision box, the turret will target ANY enemy. How do I specify to only attack enemies that walk into this collision box? Any ideas would be greatly appreciated.

 

[whale_cancer]

You just need to look for the specific instance instead of the object. Merely grab the id of the instance in some way. Here is the easiest way given your existent code, but it could be done more efficiently.

if collision_rectangle(x, y-96, x-750, y+32, obj_enemyParent, false, true) {
enemy_instance = collision_rectangle(x, y-96, x-750, y+32, obj_enemyParent, false, true)
var stoneAttack
stoneAttack = instance_create(x, y-50, obj_stoneAttack) with (stoneAttack) {
direction = point_direction(x, y, enemy_instance.x, enemy_instance.y)
}

Please enclose your code in the code tag for easy readability in the future.

 

[Grim Xavier]

Cool, thanks! Sorry, idk how to code tag things.

 

[whale_cancer]

Cool, thanks! Sorry, idk how to code tag things.

No worries. You can just click on the icon to the left of the floppy disk in the rich text editor.

I also just realized you probably need to use the .other construct like this:

with (stoneAttack) {
direction = point_direction(x, y, other.enemy_instance.x, other.enemy_instance.y)
}

 

[TheouAegis]

Why are you running collision_rectangle() twice?

LOL

var enemy=collision_rectangle(x, y-96, x-750, y+32, obj_enemyParent, false, true);
if enemy {
    (instance_create(x,y-50,obj_stoneAttack)).direction = point_direction(x, y-50, enemy.x, enemy.y);
}

 

[whale_cancer]

Why are you running collision_rectangle() twice?

LOL

var enemy=collision_rectangle(x, y-96, x-750, y+32, obj_enemyParent, false, true);
if enemy {
    (instance_create(x,y-50,obj_stoneAttack)).direction = point_direction(x, y-50, enemy.x, enemy.y);
}

Here is the easiest way given your existent code, but it could be done more efficiently.

Less typing 4 me