start splitting the image drawing logic out from main. begin tackling combining images.
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package main
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import "github.com/fogleman/gg"
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// Grid is the represents the base image that houses various Bubbles and Lines.
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type Grid struct {
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DC *gg.Context
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X, Y int
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Bubbles [](*bubble)
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Coord [][]bool
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}
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func newGrid(x, y int) Grid {
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var g Grid
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g.X = x
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g.Y = y
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g.Bubbles = make([]*bubble, 0)
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g.Coord = make([][]bool, y) //the initial value of a bool is false
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for i := range x {
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g.Coord[i] = make([]bool, x)
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}
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return g
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}
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type bubble struct {
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DC *gg.Context
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SizeX int
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SizeY int
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CoordX, CoordX2 int
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CoordY, CoordY2 int
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}
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// newBubble creates a bubble object.
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// content must be greater than 0.
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func newBubble(s string, pt float64) *bubble {
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var b bubble
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inch := 72.272 //1 inch is 72.272 (font) points. or 72 points. im getting conflicting information here.
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px := inch / 96 //1 px is 1/96th of an inch. According to some random website.
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padX, padY := 0.0, 0.0 // left in case I change my mind on absolute padding vs relative padding
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to := 25 // round up to the nearest 25th.
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size := float64(len(s)) * (px * pt) /* this was incorrect but it does make for a nice amount of padding per text.
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It gets wider as you add more text. This is because the program should be cursed. */
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bx, by := size+padX, (pt*2)+padY // box x and box y
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x, y := roundTo(bx, to), roundTo(by, to) //dc x and dc y
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b.DC = drawBubble(s, pt, x, y, bx, by)
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b.SizeX = int(x)
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b.SizeY = int(y)
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b.CoordX = 0
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b.CoordY = 0
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b.CoordX2 = b.SizeX
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b.CoordY2 = b.SizeY
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return &b
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}
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// drawBubble creates a gg.Context for a bubble. the size is moved to the nearest 25th pixel and the bubble rests in the center.
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func drawBubble(s string, pt, x, y, bx, by float64) *gg.Context {
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dc := gg.NewContext(int(x), int(y))
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err := dc.LoadFontFace("./Hack-Regular.ttf", pt)
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if err != nil {
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print("lol")
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}
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dc.DrawRoundedRectangle((x-bx)/2, (y-by)/2, bx, by, 10)
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dc.SetRGB(1, 1, 1)
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dc.Fill()
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dc.DrawRoundedRectangle((x-bx)/2, (y-by)/2, bx, by, 10)
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dc.SetRGB(256, 256, 256)
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dc.SetLineWidth(3)
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dc.Stroke()
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dc.DrawStringAnchored(s, x/2, y/2, 0.5, 0.5)
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return dc
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}
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// Move moves a bubble to a new coordinate value.
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func (b *bubble) Move(x, y int) {
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b.CoordX, b.CoordX2 = b.CoordX+x, b.CoordX2+x
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b.CoordY, b.CoordY2 = b.CoordY+y, b.CoordY2+y
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}
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// roundTo rounds base up to the next multiple of To.
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func roundTo(base float64, To int) float64 {
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i := int(base)
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for i%To != 0 {
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i++
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}
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return float64(i)
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}
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46
main.go
46
main.go
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@ -1,48 +1,6 @@
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package main
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package main
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import (
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"github.com/fogleman/gg"
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)
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func main() {
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func main() {
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dc := drawBubble("Hello World!", 16)
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bub := newBubble("hello world!", 16)
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dc.SavePNG("hello.png")
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bub.DC.SavePNG("hello.png")
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}
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// drawBubble draws text with a bubble around it.
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// content must be greater than 0.
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func drawBubble(s string, pt float64) *gg.Context {
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inch := 72.272 //1 inch is 72.272 (font) points. or 72 points. im getting conflicting information here.
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px := inch / 96 //1 px is 1/96th of an inch. According to some random website.
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padX, padY := 0.0, 0.0 // left in case I change my mind on absolute padding vs relative padding
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to := 25 // round up to the nearest 25th.
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size := float64(len(s)) * (px * pt) /* this was incorrect but it does make for a nice amount of padding per text.
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It gets wider as you add more text. This is because the program should be cursed. */
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bx, by := size+padX, (pt*2)+padY // box x and box y
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x, y := roundTo(bx, to), roundTo(by, to) //dc x and dc y
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dc := gg.NewContext(int(x), int(y))
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err := dc.LoadFontFace("./Hack-Regular.ttf", pt)
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if err != nil {
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print("lol")
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}
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dc.DrawRoundedRectangle((x-bx)/2, (y-by)/2, bx, by, 10)
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dc.SetRGB(1, 1, 1)
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dc.Fill()
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dc.DrawRoundedRectangle((x-bx)/2, (y-by)/2, bx, by, 10)
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dc.SetRGB(256, 256, 256)
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dc.SetLineWidth(3)
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dc.Stroke()
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dc.DrawStringAnchored(s, x/2, y/2, 0.5, 0.5)
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return dc
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}
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// roundTo rounds base up to the next multiple of To.
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func roundTo(base float64, To int) float64 {
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i := int(base)
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for i%To != 0 {
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i++
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}
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return float64(i)
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}
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}
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