Simple Expression

Simple expressions are not as flexible as normal scripts, but they are compiled for a very efficient execution.

Following operators are available:

randomGen	a random value from 0 to a
a factor [x,y]	a<=x: 0 a>=y: 1 x<=a<=y: ratio between x and y Note: works fine even for x>y (calculated as 1-a factor [y,x])
a interpolate [xFrom,xTo,resFrom,resTo]	Introduced in ArmA 2 1.05. interpolate result based on input value. Equivalent to x factor [xFrom,xTo] * (resTo-resFrom) + resFrom
a min b	see min
a max b	see max
a - b	see a-b
a + b	see a+b
a * b	see a*b
a / b	see a/b (for A3, not sure if others)
abs a	see abs (introduced in Arma 3 patch 1.68)

Description: a,b can be any simple expression. x,y can be a constant expression only (i.e. expression with a type Number).

Since Arma 3 1.67 the following operators are also available (v ... controller value):

• abs(v) - absolute value
• sqr(v) - square value
• sqrt(v) - square root value
• pow(v, a) - power
• x envelope(a,b,c,d) - trapezoid envelope with output <0;1> (substitution for "(v factor(a,b))*(v factor(d,c))"