This page has been translated automatically.
Программирование
Fundamentals
Setting Up Development Environment
UnigineScript
High-Level Systems
C++
C#
UUSL (Unified UNIGINE Shader Language)
File Formats
Rebuilding the Engine and Tools
GUI
Double Precision Coordinates
API
Containers
Common Functionality
Controls-Related Classes
Engine-Related Classes
Filesystem Functionality
GUI-Related Classes
Math Functionality
Node-Related Classes
Networking Functionality
Pathfinding-Related Classes
Physics-Related Classes
Plugins-Related Classes
Rendering-Related Classes
Внимание! Эта версия документация УСТАРЕЛА, поскольку относится к более ранней версии SDK! Пожалуйста, переключитесь на самую актуальную документацию для последней версии SDK.
Внимание! Эта версия документации описывает устаревшую версию SDK, которая больше не поддерживается! Пожалуйста, обновитесь до последней версии SDK.

Foreach

The foreach construct is used to iterate over vectors and maps.

Syntax

Source code (UnigineScript)
foreach(value_variable; container; loop_increment) { 
	// some_code;
}

Parts

  • 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.

Examples

  • For each vector element:
    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:
    Output
    int: 1
    vec3: 1 2 3
    float: -0.072
    string: "end"
  • For each map element:
    Source code (UnigineScript)
    int map[] = ( 1 : "begin", 2 : 2, 3 : "end" );
    foreach(int i; map) {
    	log.message("%s\n",typeinfo(i));
    }
    The result is:
    Output
    string: "begin"
    int: 2
    string: "end"
  • Increment:
    Source code (UnigineScript)
    foreach(int i, j = 0; vector; j++) {
    	log.message("%d: %s\n",j,typeinfo(i));
    }
    The output is:
    Output
    0: int: 1
    1: vec3: 1 2 3
    2: float: -0.072
    3: string: "end"
Last update: 03.07.2017
Build: ()