game

Documentation

Index

• func InitImages()
• func InitSounds()
• type Alien
  • func CreateAlien(p Position, s Speed) *Alien
  • func (a *Alien) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)
  • func (a *Alien) Update(g *Game)
• type Character
• type Element
• type Game
  • func (g *Game) Draw(screen *ebiten.Image)
  • func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int)
  • func (g *Game) Start()
  • func (g *Game) Update() error
• type Missile
  • func CreateMissile(p Position, s Speed) *Missile
  • func (m *Missile) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)
  • func (m *Missile) Update(g *Game)
• type Object
  • func (o *Object) NewtonsFirstLaw()
• type Position
• type Ship
  • func CreateShip(p Position, s Speed) *Ship
  • func (s *Ship) ClockwiseThrustersOff()
  • func (s *Ship) ClockwiseThrustersOn()
  • func (s *Ship) CounterClockwiseThrustersOff()
  • func (s *Ship) CounterClockwiseThrustersOn()
  • func (s *Ship) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)
  • func (s *Ship) FireMissile(g *Game)
  • func (s *Ship) ForwardThrustersOff()
  • func (s *Ship) ForwardThrustersOn()
  • func (s *Ship) LeftThrustersOff()
  • func (s *Ship) LeftThrustersOn()
  • func (s *Ship) ReverseThrustersOff()
  • func (s *Ship) ReverseThrustersOn()
  • func (s *Ship) RightThrustersOff()
  • func (s *Ship) RightThrustersOn()
  • func (s *Ship) Update(g *Game)
• type Speed
• type ViewPort
  • func NewViewPort(p Position) *ViewPort
  • func (vp *ViewPort) FollowAheadXY(o Object)
  • func (vp *ViewPort) FollowAheadXYR(o Object)
  • func (vp *ViewPort) LockXY(o Object)
  • func (vp *ViewPort) LockXYR(o Object)
  • func (vp *ViewPort) Max() (float64, float64)
  • func (vp *ViewPort) Orient(op *ebiten.DrawImageOptions)

Functions

func InitImages

func InitImages()

InitImages initializes the game images.

func InitSounds

func InitSounds()

InitSounds initializes looping sounds.

Types

type Alien

type Alien struct {
	Object
	Character
	// contains filtered or unexported fields
}

Alien is a squishy fusion reactor boi.

func CreateAlien

func CreateAlien(p Position, s Speed) *Alien

CreateAlien creates an alien at a position.

func (*Alien) Draw

func (a *Alien) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)

Draw draws the alien.

func (*Alien) Update

func (a *Alien) Update(g *Game)

Update updates the the alien's state.

type Character

type Character interface {
	Up()
	Down()
	Left()
	Right()
	Cw()
	Ccw()
	Attack()
	AltAttack()
	Die()
}

Character is a controllable character in the game.

type Element

type Element interface {
	Update(g *Game)
	Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)
}

Element is a visual element within the game.

type Game

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

Game is a game struct for the ebiten game engine.

func (*Game) Draw

func (g *Game) Draw(screen *ebiten.Image)

Draw draws the game on the screen.

func (*Game) Layout

func (g *Game) Layout(outsideWidth, outsideHeight int) (int, int)

Layout is the visual layout of the game screen.

func (*Game) Start

func (g *Game) Start()

Start begins the game.

func (*Game) Update

func (g *Game) Update() error

Update updates the logical state of the game.indo

type Missile

type Missile struct {
	Object
	// contains filtered or unexported fields
}

Missile is a missile object.

func CreateMissile

func CreateMissile(p Position, s Speed) *Missile

CreateMissile created at a position with a speed.

func (*Missile) Draw

func (m *Missile) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)

Draw draws the missile on the screen.

func (*Missile) Update

func (m *Missile) Update(g *Game)

Update updates the missile's state.

type Object

type Object struct {
	Element
	Speed
	Position
	Mass  float64
	Image *ebiten.Image
}

Object is a physical object in the game.

func (*Object) NewtonsFirstLaw

func (o *Object) NewtonsFirstLaw()

NewtonsFirstLaw applies newton's first law to an object. Objects in motion will stay in motion.

type Position

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

Position is a positon in the game.

type Ship

type Ship struct {
	Object
	// contains filtered or unexported fields
}

Ship is a space ship.

func CreateShip

func CreateShip(p Position, s Speed) *Ship

CreateShip creates an initialized ship at a position with speed.

func (*Ship) ClockwiseThrustersOff

func (s *Ship) ClockwiseThrustersOff()

ClockwiseThrustersOff turns the clockwise thrusters off.

func (*Ship) ClockwiseThrustersOn

func (s *Ship) ClockwiseThrustersOn()

ClockwiseThrustersOn turns the clockwise thrusters on.

func (*Ship) CounterClockwiseThrustersOff

func (s *Ship) CounterClockwiseThrustersOff()

CounterClockwiseThrustersOff turns the counter clockwise thrusters off.

func (*Ship) CounterClockwiseThrustersOn

func (s *Ship) CounterClockwiseThrustersOn()

CounterClockwiseThrustersOn turns the counter clockwise thrusters on.

func (*Ship) Draw

func (s *Ship) Draw(screen *ebiten.Image, op *ebiten.DrawImageOptions, g *Game)

Draw draws the ship in the screen.

func (*Ship) FireMissile

func (s *Ship) FireMissile(g *Game)

FireMissile fires a missile from ship. If ship is out of missiles, a warning sound is played.

func (*Ship) ForwardThrustersOff

func (s *Ship) ForwardThrustersOff()

ForwardThrustersOff turns the forward thrusters off.

func (*Ship) ForwardThrustersOn

func (s *Ship) ForwardThrustersOn()

ForwardThrustersOn turns the forward thrusters on.

func (*Ship) LeftThrustersOff

func (s *Ship) LeftThrustersOff()

LeftThrustersOff turns the left thrusters off.

func (*Ship) LeftThrustersOn

func (s *Ship) LeftThrustersOn()

LeftThrustersOn turns the left thrusters on.

func (*Ship) ReverseThrustersOff

func (s *Ship) ReverseThrustersOff()

ReverseThrustersOff turns the reverse thrusters off.

func (*Ship) ReverseThrustersOn

func (s *Ship) ReverseThrustersOn()

ReverseThrustersOn turns the reverse thrusters on.

func (*Ship) RightThrustersOff

func (s *Ship) RightThrustersOff()

RightThrustersOff turns the right thrusters off.

func (*Ship) RightThrustersOn

func (s *Ship) RightThrustersOn()

RightThrustersOn turns the right thrusters on.

func (*Ship) Update

func (s *Ship) Update(g *Game)

Update updates the ship's state.

type Speed

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

Speed is an x, y and rotational speed in the game.

type ViewPort

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

ViewPort is a window a player sees through.

func NewViewPort

func NewViewPort(p Position) *ViewPort

NewViewPort initializes a new view port.

func (*ViewPort) FollowAheadXY

func (vp *ViewPort) FollowAheadXY(o Object)

FollowAheadXY position of object

func (*ViewPort) FollowAheadXYR

func (vp *ViewPort) FollowAheadXYR(o Object)

FollowAheadXYR position of object

func (*ViewPort) LockXY

func (vp *ViewPort) LockXY(o Object)

LockXY position of viewport to object

func (*ViewPort) LockXYR

func (vp *ViewPort) LockXYR(o Object)

LockXYR position of viewport to object

func (*ViewPort) Max

func (vp *ViewPort) Max() (float64, float64)

Max position visible on viewport

func (*ViewPort) Orient

func (vp *ViewPort) Orient(op *ebiten.DrawImageOptions)

Orient drawing options according to viewport