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* Introduced support for sprites * Updated readme * cleanup * Added unit test * Refactoring
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@@ -15,7 +15,8 @@ Go Graphics library for use in a text terminal. Only 1bit graphics can be used w | |
| * [Fill](https://pkg.go.dev/github.com/msoap/tcg#Buffer.Fill) area with a different [options](https://pkg.go.dev/github.com/msoap/tcg#FillOpt), for example fill with [patterns](https://pkg.go.dev/github.com/msoap/tcg#WithPattern) | ||
| * Buffer manipulating: [cut](https://pkg.go.dev/github.com/msoap/tcg#Buffer.Cut), [clone](https://pkg.go.dev/github.com/msoap/tcg#Buffer.Clone), convert to/from stdlib [Image](https://pkg.go.dev/github.com/msoap/tcg#Buffer.ToImage) or text | ||
| * Buffer transform: [BitBlt](https://pkg.go.dev/github.com/msoap/tcg#Buffer.BitBlt) with [options](https://pkg.go.dev/github.com/msoap/tcg#BitBltOpt), [clear](https://pkg.go.dev/github.com/msoap/tcg#Buffer.Clear), [flip](https://pkg.go.dev/github.com/msoap/tcg#Buffer.HFlip), [invert](https://pkg.go.dev/github.com/msoap/tcg#Buffer.Invert), scroll ([vertical](https://pkg.go.dev/github.com/msoap/tcg#Buffer.VScroll), [horizontal](https://pkg.go.dev/github.com/msoap/tcg#Buffer.HScroll)) | ||
| * Sub-package for [turtle graphics](https://pkg.go.dev/github.com/msoap/tcg/turtle), also available [drawing](https://pkg.go.dev/github.com/msoap/[email protected]/turtle#Turtle.DrawScript) by text script | ||
| * Sub-package for [turtle graphics](https://pkg.go.dev/github.com/msoap/tcg/turtle), also available [drawing](https://pkg.go.dev/github.com/msoap/tcg/turtle#Turtle.DrawScript) by text script | ||
| * [Sprite](https://pkg.go.dev/github.com/msoap/tcg/sprite) support with [Put](https://pkg.go.dev/github.com/msoap/tcg/sprite#Sprite.Put), [Withdraw](https://pkg.go.dev/github.com/msoap/tcg/sprite#Sprite.Withdraw), [Move](https://pkg.go.dev/github.com/msoap/tcg/sprite#Sprite.Move), etc methods | ||
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| ## Install | ||
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@@ -69,7 +70,8 @@ See more [screenshots](https://github.com/msoap/tcg/wiki/Screenshots). | |
| ## TODO | ||
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| * [ ] fonts support | ||
| * [ ] sprites, maybe with animation | ||
| * [x] sprites | ||
| * [ ] animation in sprite | ||
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| ## See also | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,89 @@ | ||
| package sprite | ||
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| import ( | ||
| "github.com/msoap/tcg" | ||
| ) | ||
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| // Sprite - sprite object | ||
| type Sprite struct { | ||
| Buf tcg.Buffer // sprite image | ||
| x, y int // position on buffer, can be negative | ||
| width int | ||
| height int | ||
| mask *tcg.Buffer // mask for sprite | ||
| bg tcg.Buffer // saved | ||
| isDrawn bool // is sprite drawn on buffer | ||
| } | ||
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| // New - get new sprite object from tcg.Buffer | ||
| func New(buf tcg.Buffer) *Sprite { | ||
| return &Sprite{ | ||
| width: buf.Width, | ||
| height: buf.Height, | ||
| Buf: buf, | ||
| bg: tcg.NewBuffer(buf.Width, buf.Height), | ||
| } | ||
| } | ||
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| // WithMask - add mask to sprite | ||
| func (s *Sprite) WithMask(mask tcg.Buffer) *Sprite { | ||
| s.mask = &mask | ||
| return s | ||
| } | ||
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| // Put - put sprite on buffer, save background under sprite, change state of sprite to drawn | ||
| func (s *Sprite) Put(buf tcg.Buffer) *Sprite { | ||
| s.draw(buf) | ||
| s.isDrawn = true | ||
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| return s | ||
| } | ||
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| // draw - draw sprite on buffer, save background under sprite | ||
| func (s *Sprite) draw(buf tcg.Buffer) { | ||
| // copy background | ||
| s.bg.BitBlt(0, 0, s.width, s.height, buf, s.x, s.y) | ||
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| // draw sprite | ||
| var opts []tcg.BitBltOpt | ||
| if s.mask != nil { | ||
| opts = append(opts, tcg.BBMask(s.mask)) | ||
| } | ||
| buf.BitBlt(s.x, s.y, s.width, s.height, s.Buf, 0, 0, opts...) | ||
| } | ||
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| // Withdraw - withdraw sprite from buffer | ||
| func (s *Sprite) Withdraw(buf tcg.Buffer) *Sprite { | ||
| if s.isDrawn { | ||
| s.clear(buf) | ||
| s.isDrawn = false | ||
| } | ||
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| return s | ||
| } | ||
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| // clear sprite on buffer | ||
| func (s *Sprite) clear(buf tcg.Buffer) { | ||
| buf.BitBlt(s.x, s.y, s.width, s.height, s.bg, 0, 0) | ||
| } | ||
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| // MoveAbs - move sprite on buffer to absolute position, coordinates can be negative | ||
| func (s *Sprite) MoveAbs(buf tcg.Buffer, x, y int) *Sprite { | ||
| if s.isDrawn { | ||
| s.clear(buf) | ||
| } | ||
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| s.x = x | ||
| s.y = y | ||
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| if s.isDrawn { | ||
| s.draw(buf) | ||
| } | ||
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| return s | ||
| } | ||
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| // Move - move sprite on buffer to relative position | ||
| func (s *Sprite) Move(buf tcg.Buffer, x, y int) *Sprite { | ||
| return s.MoveAbs(buf, s.x+x, s.y+y) | ||
| } |
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