grid

Documentation

Index

• func At(p Position) ecs.Entity
• func Fill(newTile func() ecs.Entity)
• func ScreenResized(w, h int16)
• func Setup(w, h int8)
• func TestAndMark(test func(e1, e2 ecs.Entity) bool, mark func(e ecs.Entity))
• type Position
  • func Nowhere() Position
  • func PositionAt(c pixel.XY) Position
  • func PositionOf(e ecs.Entity) Position
  • func (p Position) ScreenXY() (x, y int16)
  • func (p Position) String() string
  • func (p Position) TestAndMark(test func(e1, e2 ecs.Entity) bool, mark func(e ecs.Entity))

Functions

func At

func At(p Position) ecs.Entity

At returns the entity currently at the grid position.

func Fill

func Fill(newTile func() ecs.Entity)

Fill the grid with new tiles.

func ScreenResized

func ScreenResized(w, h int16)

ScreenResized repositions the grid on the screen

func Setup

func Setup(w, h int8)

Setup prepare a new grid of width w and height h.

func TestAndMark

func TestAndMark(test func(e1, e2 ecs.Entity) bool, mark func(e ecs.Entity))

Types

type Position

type Position struct {
	// contains filtered or unexported fields
}

A Position on the grid

func Nowhere

func Nowhere() Position

Nowhere returns the nil value for grid positions.

func PositionAt

func PositionAt(c pixel.XY) Position

PositionAt returns the grid position containing the screen coordinates c.

func PositionOf

func PositionOf(e ecs.Entity) Position

PositionOf returns the grid position of entity e.

func (Position) ScreenXY

func (p Position) ScreenXY() (x, y int16)

ScreenXY returns the screen coordinates of the grid position, given a cell size of s.

func (Position) String

func (p Position) String() string

String returns a string representation of p.

func (Position) TestAndMark

func (p Position) TestAndMark(test func(e1, e2 ecs.Entity) bool, mark func(e ecs.Entity))