Does "GetActorAngle" not work on "Map Spot"?

[Tormentor667]

Hey fellow Doomers,

for simplifying a trap script, I did the following script:

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int fire_direction=215;
int fire_counter=0;

script "Fire_Traps" (void)
{
	while(fire_counter<5)
	{
		Thing_Projectile2(fire_direction, 222, GetActorAngle(fire_direction), random(48,56), 0, 0, 0);
		delay(random(1,6));
		fire_counter++;
	}

	fire_direction=random(215,218);
	fire_counter=0;

	delay(35);

	restart;
}

So what does it do?
It randomly chooses between a map spot (215 to 218), gets the actors angle to determine in which direction to shoot the fire attack and then fires it. After 5 bursts have been dealt, it starts over again with a new map spot. The problem is: The attack always goes in the eastern direction (angle 0). Does a map spot not have an angle or does the GetActorAngle function not read its angle?

[KeksDose]

GetActorAngle returns an angle between 0 inclusive and 1.0 not inclusive, while Thing_Projectile takes a byte angle, range 0 to 255 inclusive.

Since 1.0 is fixed point (1.0 is actually 65536), you can divide the GetActorAngle result by 256 or shift right >> by 8 to get it into the byte angle range. That's an issue for sure. Then make sure your map spots exist. If you're unsure whether your angles are read correctly, add this to your script and look at the output:

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Log(s:"Angle of spot ", i:fire_direction, s:" is ", f:GetActorAngle(fire_direction) ); 

My guess: You are unlucky and all the angles it can choose from happen to be a multiple of 256.

[Tormentor667]

That did the job, thanks kindly