geObject2D

geObject2D is a base class for all geHUD elements.

Usage

This class itself has an empty Draw() method, but its virtual fields and methods are used in derived classes.

Inheritance

Base classes

• geObject
  • geObject2D

Derived classes

• geSprite2D
  • geButton
  • geAnim2D
• geText2D
• geCircle

Reference

Alignment Options

Alignment options are used with

Align()

method to make it easy to position objects. Alignment specifies which point of the object should be used as the "attachment point" of an object. Default alignment for newly created objects is GE_ALIGN_TL (top left).

The same constants are used to specify axis alignment in an object, i.e. whether object revolves around the center, top-left corner, etc. Default axis alignment for new objects is GE_ALIGN_CENTER (middle of an object).

GE_ALIGN_TL top left	GE_ALIGN_TC top center	GE_ALIGN_TR top right
GE_ALIGN_CL center left	GE_ALIGN_CENTER center	GE_ALIGN_CR center right
GE_ALIGN_BL bottom left	GE_ALIGN_BC bottom center	GE_ALIGN_BR bottom right
GE_ALIGN_CUSTOM specify x and y offsets in pixels, relative to the object's top-left corner

Fields

Note: All coordinates are in pixels, relative to top-left corner of the window. All angles are in degrees.

• double x; // x coordinate (px)
• double y; // y coordinate (px)
• double r; // rotation (degrees) - around axis point
• double s; // scale (1.0 = 100%) - around axis point
• double w; // width (px)
• double h; // height (px)
• double alignX; // horizontal alignment offset (px) - use Align() to set these
• double alignY; // vertical alignment offset (px)
• double axisX; // horizontal axis offset (px) - use SetAxis() to set these
• double axisY; // vertical axis offset (px)
• bool active; // indicates whether object should be active/visible

Methods

• virtual void Align( int alignment = GE_ALIGN_TL, double _alignX = 0, double _alignY = 0 );

Specify alignment option for an object. The last 2 parameters are only required if alignment=GE_ALIGN_CUSTOM, in which case they specify the relative offset (in pixels) from the top-left corner of the object.

• virtual void SetAxis( int axis = GE_ALIGN_CENTER, double _axisX = 0, double _axisY = 0 );

Specify axis alignment option for an object. same as above, the last 2 parameters are only required if alignment=GE_ALIGN_CUSTOM.