84 lines
1.8 KiB
Go
84 lines
1.8 KiB
Go
package main
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import (
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"fmt"
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"math/rand"
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"os"
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"strings"
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"time"
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"github.com/mediocregopher/ginger/gg"
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"github.com/mediocregopher/ginger/gim/geo"
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"github.com/mediocregopher/ginger/gim/terminal"
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)
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// Leave room for:
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// - Changing the "flow" direction
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// - Absolute positioning of some/all vertices
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// TODO
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// - assign edges to "slots" on boxes
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// - finish initial implementation of constraint, use that to sort boxes by
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// primary and secondary flowDir based on their edges
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// - be able to draw circular graphs
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const (
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framerate = 10
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frameperiod = time.Second / time.Duration(framerate)
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rounder = geo.Ceil
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)
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func debugf(str string, args ...interface{}) {
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if !strings.HasSuffix(str, "\n") {
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str += "\n"
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}
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fmt.Fprintf(os.Stderr, str, args...)
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}
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func mkGraph() *gg.Graph {
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aE0 := gg.ValueOut(gg.Str("a"), gg.Str("aE0"))
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aE1 := gg.ValueOut(gg.Str("a"), gg.Str("aE1"))
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aE2 := gg.ValueOut(gg.Str("a"), gg.Str("aE2"))
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aE3 := gg.ValueOut(gg.Str("a"), gg.Str("aE3"))
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g := gg.Null
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g = g.AddValueIn(aE0, gg.Str("b0"))
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g = g.AddValueIn(aE1, gg.Str("b1"))
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g = g.AddValueIn(aE2, gg.Str("b2"))
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g = g.AddValueIn(aE3, gg.Str("b3"))
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jE := gg.JunctionOut([]gg.OpenEdge{
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gg.ValueOut(gg.Str("b0"), gg.Str("")),
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gg.ValueOut(gg.Str("b1"), gg.Str("")),
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gg.ValueOut(gg.Str("b2"), gg.Str("")),
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gg.ValueOut(gg.Str("b3"), gg.Str("")),
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}, gg.Str("jE"))
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g = g.AddValueIn(jE, gg.Str("c"))
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return g
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}
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//func mkGraph() *gg.Graph {
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// g := gg.Null
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// g = g.AddValueIn(gg.ValueOut(str("a"), str("e")), str("b"))
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// return g
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//}
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func main() {
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rand.Seed(time.Now().UnixNano())
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term := terminal.New()
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term.Reset()
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term.HideCursor()
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v := view{
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g: mkGraph(),
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flowDir: geo.Down,
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start: gg.Str("c"),
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center: geo.Zero.Midpoint(term.WindowSize(), rounder),
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}
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for range time.Tick(frameperiod) {
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term.Reset()
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v.draw(term)
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term.Flush()
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}
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}
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