Foreach

• value_variable is the value of the current container element.
• container is a vector or a map.
• loop_increment is executed at the end of each iteration.

On each iteration, the value of the current element is assigned to value_variable and the internal container cursor is moved to point at the next container element. The type of value_variable doesn't matter. loop_increment is optional.

Modifications of elements inside the foreach block affect the container; synchronization occurs at the end of each iteration.

• For each vector element:
  Copy Source code (UnigineScript)

  int vector[4] = ( 1, vec3(1,2,3), -7.2e-2, "end" );
  foreach(int i; vector) {
  	log.message("%s\n",typeinfo(i));
  }

  The example displays the following:
  Copy Output

  int: 1
  vec3: 1 2 3
  float: -0.072
  string: "end"

• For each map element:
  Copy Source code (UnigineScript)

  int map[] = ( 1 : "begin", 2 : 2, 3 : "end" );
  foreach(int i; map) {
  	log.message("%s\n",typeinfo(i));
  }

  The result is:
  Copy Output

  string: "begin"
  int: 2
  string: "end"

• Increment:
  Copy Source code (UnigineScript)

  foreach(int i, j = 0; vector; j++) {
  	log.message("%d: %s\n",j,typeinfo(i));
  }

  The output is:
  Copy Output

  0: int: 1
  1: vec3: 1 2 3
  2: float: -0.072
  3: string: "end"