Agents.SimpleFlowField Class Reference

Simple flow field. More...

Inheritance diagram for Agents.SimpleFlowField:

Classes
class	FlowDirection
	Flow direction. More...

Public Member Functions
Vector2	Lookup (Vector2 position)
	Lookup direction from flow. More...

Public Attributes
int	Resolution = 30
	Grid resolution More...

Protected Member Functions
virtual Vector2	ComputeDirectionFromPosition (int x, int y)
	Compute flow direction from a given position. Defaults with a right vector. More...
void	RefreshDirections ()
	Refresh flow directions. More...

Protected Attributes
int	cols
	Column count More...
int	rows
	Row count More...
FlowDirection[]	field
	Flow field More...
Vector2	size
	Size More...

Detailed Description

Simple flow field.

Definition at line 8 of file SimpleFlowField.cs.

Member Function Documentation

ComputeDirectionFromPosition()

virtual Vector2 Agents.SimpleFlowField.ComputeDirectionFromPosition ( int  x, int  y  )

inlineprotectedvirtual

Compute flow direction from a given position. Defaults with a right vector.

Parameters

x	X coordinate
y	Y coordinate

Returns

Flow direction

Reimplemented in Agents.ImageFlowField.

Definition at line 77 of file SimpleFlowField.cs.

        {
            return Vector2.Right;
        }

Lookup()

Vector2 Agents.SimpleFlowField.Lookup ( Vector2  position )

inline

Lookup direction from flow.

Parameters

position

Position

Returns

Direction vector

Definition at line 55 of file SimpleFlowField.cs.

        {
            var rect = new Rect2(GlobalPosition, size);
            if (rect.HasPoint(position))
            {
                var x = (int)Mathf.Clamp((position.x - GlobalPosition.x) / Resolution, 0, cols - 1);
                var y = (int)Mathf.Clamp((position.y - GlobalPosition.y) / Resolution, 0, rows - 1);
                return field[x + (y * cols)].Direction;
            }
            else
            {
                return Vector2.Zero;
            }
        }

RefreshDirections()

void Agents.SimpleFlowField.RefreshDirections ( )

inlineprotected

Refresh flow directions.

Definition at line 85 of file SimpleFlowField.cs.

        {
            for (int j = 0; j < rows; ++j)
            {
                for (int i = 0; i < cols; ++i)
                {
                    var idx = i + (j * cols);
                    var direction = field[idx];
                    direction.Direction = ComputeDirectionFromPosition(i, j);
                    direction.RectRotation = Mathf.Rad2Deg(direction.Direction.Angle());
                }
            }
        }

Member Data Documentation

cols

int Agents.SimpleFlowField.cols

protected

Column count

Definition at line 14 of file SimpleFlowField.cs.

field

FlowDirection [] Agents.SimpleFlowField.field

protected

Flow field

Definition at line 20 of file SimpleFlowField.cs.

Resolution

int Agents.SimpleFlowField.Resolution = 30

Grid resolution

Definition at line 11 of file SimpleFlowField.cs.

rows

int Agents.SimpleFlowField.rows

protected

Row count

Definition at line 17 of file SimpleFlowField.cs.

size

Vector2 Agents.SimpleFlowField.size

protected

Size

Definition at line 23 of file SimpleFlowField.cs.

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The documentation for this class was generated from the following file:

• scripts/agents/SimpleFlowField.cs