You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package main
|
|
|
|
import (
|
|
"flag"
|
|
"image"
|
|
"image/color"
|
|
"time"
|
|
|
|
rgbmatrix "gitea.wagshome.duckdns.org/publicWagsHome/go-rpi-rgb-led-matrix"
|
|
"github.com/fogleman/gg"
|
|
)
|
|
|
|
var (
|
|
rows = flag.Int("led-rows", 32, "number of rows supported")
|
|
cols = flag.Int("led-cols", 32, "number of columns supported")
|
|
parallel = flag.Int("led-parallel", 1, "number of daisy-chained panels")
|
|
chain = flag.Int("led-chain", 2, "number of displays daisy-chained")
|
|
brightness = flag.Int("brightness", 100, "brightness (0-100)")
|
|
hardware_mapping = flag.String("led-gpio-mapping", "regular", "Name of GPIO mapping used.")
|
|
show_refresh = flag.Bool("led-show-refresh", false, "Show refresh rate.")
|
|
inverse_colors = flag.Bool("led-inverse", false, "Switch if your matrix has inverse colors on.")
|
|
disable_hardware_pulsing = flag.Bool("led-no-hardware-pulse", false, "Don't use hardware pin-pulse generation.")
|
|
)
|
|
|
|
func main() {
|
|
config := &rgbmatrix.DefaultConfig
|
|
config.Rows = *rows
|
|
config.Cols = *cols
|
|
config.Parallel = *parallel
|
|
config.ChainLength = *chain
|
|
config.Brightness = *brightness
|
|
config.HardwareMapping = *hardware_mapping
|
|
config.ShowRefreshRate = *show_refresh
|
|
config.InverseColors = *inverse_colors
|
|
config.DisableHardwarePulsing = *disable_hardware_pulsing
|
|
|
|
m, err := rgbmatrix.NewRGBLedMatrix(config)
|
|
fatal(err)
|
|
|
|
tk := rgbmatrix.NewToolKit(m)
|
|
defer tk.Close()
|
|
|
|
tk.PlayAnimation(NewAnimation(image.Point{64, 32}))
|
|
}
|
|
|
|
func init() {
|
|
flag.Parse()
|
|
}
|
|
|
|
func fatal(err error) {
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
type Animation struct {
|
|
ctx *gg.Context
|
|
position image.Point
|
|
dir image.Point
|
|
stroke int
|
|
}
|
|
|
|
func NewAnimation(sz image.Point) *Animation {
|
|
return &Animation{
|
|
ctx: gg.NewContext(sz.X, sz.Y),
|
|
dir: image.Point{1, 1},
|
|
stroke: 5,
|
|
}
|
|
}
|
|
|
|
func (a *Animation) Next() (image.Image, <-chan time.Time, error) {
|
|
defer a.updatePosition()
|
|
|
|
a.ctx.SetColor(color.Black)
|
|
a.ctx.Clear()
|
|
|
|
a.ctx.DrawCircle(float64(a.position.X), float64(a.position.Y), float64(a.stroke))
|
|
a.ctx.SetColor(color.RGBA{255, 0, 0, 255})
|
|
a.ctx.Fill()
|
|
return a.ctx.Image(), time.After(time.Millisecond * 50), nil
|
|
}
|
|
|
|
func (a *Animation) updatePosition() {
|
|
a.position.X += 1 * a.dir.X
|
|
a.position.Y += 1 * a.dir.Y
|
|
|
|
if a.position.Y+a.stroke > a.ctx.Height() {
|
|
a.dir.Y = -1
|
|
} else if a.position.Y-a.stroke < 0 {
|
|
a.dir.Y = 1
|
|
}
|
|
|
|
if a.position.X+a.stroke > a.ctx.Width() {
|
|
a.dir.X = -1
|
|
} else if a.position.X-a.stroke < 0 {
|
|
a.dir.X = 1
|
|
}
|
|
}
|