core

Jun 14, 2026

Changes in this version

+ func NewPCG(seed int64) *rand.Rand

+ type Action interface

+ Vector func() []float64

+ type Agent interface

+ Act func(s State) Action

+ EndEpisode func(totalReward Reward)

+ Observe func(s State, a Action, r Reward, next State, done bool)

+ type Camera struct

+ ViewH float64

+ ViewW float64

+ X float64

+ Y float64

+ Zoom float64

+ func NewCamera(viewW, viewH float64) *Camera

+ func (c *Camera) FitBounds(minX, minY, maxX, maxY, margin float64)

+ func (c *Camera) Follow(wx, wy float64)

+ func (c *Camera) ScreenToWorld(sx, sy float64) (wx, wy float64)

+ func (c *Camera) WorldToScreen(wx, wy float64) (sx, sy float64)

+ type Environment interface

+ ActionSpec func() Spec

+ ObservationSpec func() Spec

+ Render func(r Renderer)

+ Reset func(rng *rand.Rand) State

+ Step func(a Action) (State, Reward, bool)

+ type Individual interface

+ Act func(s State) Action

+ Fitness func() Reward

+ Genome func() []float64

+ SetFitness func(r Reward)

+ type MultiEnvironment interface

+ ActionSpec func() Spec

+ Alive func() int

+ ObservationSpec func() Spec

+ Render func(r Renderer)

+ ResetAll func(n int, rng *rand.Rand) []State

+ StepAll func(actions []Action) (states []State, rewards []Reward, dones []bool)

+ type PopulationAgent interface

+ All func() iter.Seq[Individual]

+ Evolve func()

+ Generation func() int

+ Len func() int

+ type Renderer interface

+ Camera func() *Camera

+ Circle func(x, y, radius float64, c color.Color)

+ Line func(x1, y1, x2, y2 float64, c color.Color)

+ Polygon func(pts [][2]float64, c color.Color)

+ Text func(x, y float64, s string)

+ type Reward float64

+ type Spec struct

+ Dim int

+ Discrete bool

+ High []float64

+ Low []float64

+ func (s Spec) Clamp(v []float64) []float64

+ func (s Spec) Valid() error

+ type State interface

+ Observation func() []float64

+ type Vec2 struct

+ X float64

+ Y float64