Sprites about engo

[paked]

Yes we do! Unfortunately, there isn't very much documentation... The component/system are in this file: https://github.com/paked/engi/blob/master/animation.go

If you need any help give me a shout!

[matiwinnetou]

👍

BTW: it would be nicer if we had a Gitter channel, I am already signed by default to my work slack channel and Gitter is perfect for these things.

I already could comment on some things I encountered while browsing through the code.

[matiwinnetou]

I am trying the most simple sprite to work, I realized that *Region is renderable but Sprite is not really. Well there is a render method implemented but only a method that takes a *Batch. If I pass this to
engi.NewRenderComponent(

it doesn't work because sprite cannot be rendered...

I modified tilemap example to play with latest API:

package main

import (
    "fmt"
    "github.com/paked/engi"
    "log"
)

var World *GameWorld

type GameWorld struct {
    engi.World
}

func (game *GameWorld) Preload() {
    engi.Files.Add("data/Hero.png")

    log.Println("Preloaded")
}

func (game *GameWorld) Setup() {
    engi.SetBg(0x2d3739)

    game.AddSystem(&engi.RenderSystem{})

    sprites := engi.NewSpritesheet("Hero.png", 15, 15)
    cell := sprites.Cell(1)
    println(fmt.Sprintf("%f", sprites.Height()))
    println(fmt.Sprintf("%f", sprites.Width()))

    gameMap := engi.NewEntity([]string{"RenderSystem"})

    mapRender := engi.NewRenderComponent(cell, engi.Point{1, 1}, "map")
    mapSpace := engi.SpaceComponent{engi.Point{100, 100}, 0, 0}
    gameMap.AddComponent(&mapRender)
    gameMap.AddComponent(&mapSpace)

    game.AddEntity(gameMap)
}

func main() {
    World = &GameWorld{}
    engi.Open("Hello", 1024, 640, false, World)
}

so far no luck to be able to use one tile from the tilemap

[matiwinnetou]

there are these methods:

func NewSprite(region *Region, x, y float32) *Sprite {
    return &Sprite{
        Position: &Point{x, y},
        Scale:    &Point{1, 1},
        Anchor:   &Point{0, 0},
        Rotation: 0,
        Color:    0xffffff,
        Alpha:    1,
        Region:   region,
    }
}

func (s *Sprite) Render(batch *Batch) {
    batch.Draw(s.Region, s.Position.X, s.Position.Y, s.Anchor.X, s.Anchor.Y, s.Scale.X, s.Scale.Y, s.Rotation, s.Color, s.Alpha)
}

but I cannot render a sprite...

[EtienneBruines]

@matiwinnetou Can you push the code to (a branch of) your fork? Then I could take a look? (easier when we're using the same code).