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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| package common | ||
|
|
||
| import ( | ||
| "image" | ||
| "image/color" | ||
| "math" | ||
| "math/rand" | ||
| "sync" | ||
|
|
||
| "github.com/fogleman/gg" | ||
| "github.com/nao1215/imaging" | ||
| ) | ||
|
|
||
| var DefaultBackgroundBlur float64 = 5 | ||
| var GlassEffectBackgroundBlur float64 = DefaultBackgroundBlur * 5 | ||
|
|
||
| var globalLogoCacheMx sync.Mutex | ||
| var globalLogoCache = make(map[color.Color]image.Image) | ||
|
|
||
| func AddDefaultBrandedOverlay(background image.Image, colors []color.Color, seed int, colorChance float32) image.Image { | ||
| if len(colors) < 1 { | ||
| colors = DefaultLogoColorOptions | ||
| } | ||
|
|
||
| source := rand.NewSource(int64(seed)) | ||
| r := rand.New(source) | ||
| for i := range colors { | ||
| if r.Float32() > colorChance { | ||
| colors[i] = TextSecondary | ||
| } | ||
| } | ||
|
|
||
| size := 15 | ||
| overlay := NewBrandedBackground(background.Bounds().Dx()*2, background.Bounds().Dy()*2, size, -size/2, colors, seed) | ||
| return imaging.OverlayCenter(background, overlay, 0.5) | ||
| } | ||
|
|
||
| func NewBrandedBackground(width, height, logoSize, padding int, colors []color.Color, hashSeed int) image.Image { | ||
| // 1/3 of the image should be left for logos | ||
| rows := max((height-padding*2)/3/logoSize, 2) | ||
| cols := max((width-padding*2)/3/logoSize, 2) | ||
| // the rest is gaps | ||
| xGapsTotal := width - padding*2 - (cols)*logoSize | ||
| yGapsTotal := height - padding*2 - (rows)*logoSize | ||
| xGap := xGapsTotal / (cols - 1) | ||
| yGap := yGapsTotal / (rows - 1) | ||
|
|
||
| localLogoCache := make(map[color.Color]image.Image) | ||
| getLogo := func(color color.Color) image.Image { | ||
| if img := localLogoCache[color]; img != nil { | ||
| return img | ||
| } | ||
|
|
||
| logo, ok := globalLogoCache[color] | ||
| if !ok { | ||
| logo = AftermathLogo(color, SmallLogoOptions()) | ||
| globalLogoCacheMx.Lock() | ||
| globalLogoCache[color] = logo | ||
| globalLogoCacheMx.Unlock() | ||
| } | ||
| logo = imaging.Fill(logo, logoSize, logoSize, imaging.Center, imaging.Lanczos) | ||
| localLogoCache[color] = logo // mx is already locked inside the caller | ||
| return logo | ||
| } | ||
|
|
||
| ctx := gg.NewContext(width, height) | ||
| var makeFn []func() | ||
| var mx sync.Mutex | ||
| var wg sync.WaitGroup | ||
|
|
||
| for c := range cols { | ||
| for r := range rows { | ||
| wg.Add(1) | ||
|
|
||
| makeFn = append(makeFn, func() { | ||
| defer wg.Done() | ||
|
|
||
| posX := float64(padding + c*(logoSize+xGap)) | ||
| posY := float64(padding + r*(logoSize+yGap)) | ||
| source := rand.NewSource(int64(hashSeed) + int64(posX)*51 + int64(posY)*37) | ||
| rnd := rand.New(source) | ||
|
|
||
| if n := rnd.Float32(); n < 0.5 { | ||
| return | ||
| } | ||
|
|
||
| clr := pickColor(colors, rnd) | ||
| scale := pickScaleFactor(rnd) | ||
| rotation := pickRotationRad(rnd) | ||
|
|
||
| mx.Lock() | ||
| logo := getLogo(clr) | ||
| mx.Unlock() | ||
|
|
||
| logoAdjusted := imaging.New(logoSize, logoSize, color.Transparent) | ||
| logoAdjusted = imaging.PasteCenter(logoAdjusted, logo) | ||
| logoAdjusted = imaging.Rotate(logoAdjusted, rotation, color.Transparent) | ||
| logoAdjusted = imaging.Resize(logoAdjusted, int(float64(logoSize)*scale), int(float64(logoSize)*scale), imaging.Linear) | ||
|
|
||
| xJ, yJ := pickPositionJitter(rnd) | ||
| posX += xJ | ||
| posY += yJ | ||
|
|
||
| mx.Lock() | ||
| ctx.DrawImage(logoAdjusted, int(posX), int(posY)) | ||
| mx.Unlock() | ||
| }) | ||
| } | ||
| } | ||
| for _, fn := range makeFn { | ||
| go fn() // wg.Done is called inside already, wg.Add was called already | ||
| } | ||
| wg.Wait() | ||
|
|
||
| return ctx.Image() | ||
| } | ||
|
|
||
| // pickColor function that includes hashSeed in the hash calculation | ||
| func pickColor(colors []color.Color, r *rand.Rand) color.Color { | ||
| if len(colors) < 1 { | ||
| return color.White | ||
| } | ||
|
|
||
| index := r.Intn(len(colors)) | ||
| return colors[index] | ||
| } | ||
|
|
||
| // pickScaleFactor function that generates a scale factor clamped between 0.8 and 1.2, influenced by image size | ||
| func pickScaleFactor(r *rand.Rand) float64 { | ||
| // Clamp the scale factor between 0.5 and 1.5 | ||
| scaleFactor := 0.5 + (r.Float64()) | ||
| return scaleFactor | ||
| } | ||
|
|
||
| // pickPositionJitter function that generates an x,y position offset based on the hash seed | ||
| func pickPositionJitter(r *rand.Rand) (float64, float64) { | ||
| // Clamp between 0.5 and 1.5 | ||
| xJitter := -0.5 + r.Float64() | ||
| yJitter := -0.5 + r.Float64() | ||
| return xJitter, yJitter | ||
| } | ||
|
|
||
| func pickRotationRad(r *rand.Rand) float64 { | ||
| // Clamp the rotation angle between -2.5π and 2.5π radians | ||
| rotationRad := -2.5*math.Pi + (r.Float64() * (5 * math.Pi)) | ||
| return rotationRad | ||
| } | ||
|
|
||
| func BlurWithMask(content image.Image, mask *image.Alpha, blur, maskBlur float64) (image.Image, error) { | ||
| ctx := gg.NewContext(content.Bounds().Dx(), content.Bounds().Dy()) | ||
| err := ctx.SetMask(mask) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| ctx.DrawImage(imaging.Blur(content, maskBlur), 0, 0) | ||
|
|
||
| content = imaging.Blur(content, blur) | ||
| content = imaging.OverlayCenter(content, ctx.Image(), 1) // paste masked content on top of content | ||
| return content, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package common | ||
|
|
||
| var ( | ||
| BorderRadius2XL = 42.5 | ||
| BorderRadiusXL = 30.0 | ||
| BorderRadiusLG = 25.0 | ||
| BorderRadiusMD = 20.0 | ||
| BorderRadiusSM = 15.0 | ||
| BorderRadiusXS = 10.0 | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| package common | ||
|
|
||
| import "image/color" | ||
|
|
||
| var DiscordBackgroundColor = color.NRGBA{49, 51, 56, 255} | ||
|
|
||
| var DefaultLogoColorOptions = []color.Color{color.NRGBA{50, 50, 50, 180}, color.NRGBA{200, 200, 200, 180}} | ||
|
|
||
| var ( | ||
| TextPrimary = color.NRGBA{255, 255, 255, 255} | ||
| TextSecondary = color.NRGBA{204, 204, 204, 255} | ||
| TextAlt = color.NRGBA{150, 150, 150, 255} | ||
|
|
||
| TextSubscriptionPlus = color.NRGBA{72, 167, 250, 255} | ||
| TextSubscriptionPremium = color.NRGBA{255, 223, 0, 255} | ||
|
|
||
| DefaultCardColor = color.NRGBA{10, 10, 10, 150} | ||
| DefaultCardColorNoAlpha = color.NRGBA{10, 10, 10, 255} | ||
| ClanTagBackgroundColor = color.NRGBA{10, 10, 10, 100} | ||
|
|
||
| ColorAftermathRed = color.NRGBA{255, 0, 120, 255} | ||
| ColorAftermathBlue = color.NRGBA{72, 167, 250, 255} | ||
| ColorAftermathYellow = color.NRGBA{255, 223, 0, 255} | ||
| ) |
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