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package main
import (
"citrons.xyz/talk/tui"
"math/rand"
"log"
"strings"
"time"
)
type ball struct {
x int
y int
vx int
vy int
inGoal bool
}
func main() {
tui.Start()
s := tui.Size()
var balls [20]ball
for i := 0; i < len(balls); i++ {
balls[i].x = rand.Int() % s.Width - 1
balls[i].y = rand.Int() % s.Height
if rand.Int() % 2 == 1 {
balls[i].vx = 1
} else {
balls[i].vx = -1
}
if rand.Int() % 2 == 1 {
balls[i].vy = 1
} else {
balls[i].vy = -1
}
}
var sb strings.Builder
for {
tui.Clear()
s := tui.Size()
for y := 0; y < s.Height; y++ {
for x := 0; x < s.Width; x++ {
if (x + 66) % 10 == 1 && (y + 2) % 5 == 1 {
tui.Write(x, y, "*", tui.Style {Fg: tui.Green})
}
}
}
tui.Write(2, 1, "normal", tui.Style {Fg: tui.Red})
tui.Write(2, 2, "bold", tui.Style {Fg: tui.Yellow, Bold: true})
tui.Write(2, 3, "italic", tui.Style {Fg: tui.Green, Italic: true})
tui.Write(2, 4, "underline", tui.Style {Fg: tui.Blue, Underline: true})
tui.Write(2, 5, "strikethrough", tui.Style {Fg: tui.Magenta, Strikethrough: true})
tui.Write(2, 6, "hooray!", tui.Style {Fg: tui.White, Bold: true, Italic: true, Underline: true, Strikethrough: true})
gx := s.Width / 2 - 1
for i := 0; i < len(balls); i++ {
if balls[i].inGoal {
continue
}
balls[i].x += balls[i].vx
balls[i].y += balls[i].vy
if balls[i].x < 0 {
balls[i].x = 0
balls[i].vx = -balls[i].vx
} else if balls[i].x >= s.Width - 1 {
balls[i].x = s.Width - 2
balls[i].vx = -balls[i].vx
}
if balls[i].y < 0 {
balls[i].y = 0
balls[i].vy = -balls[i].vy
} else if balls[i].y >= s.Height {
balls[i].y = s.Height - 1
balls[i].vy = -balls[i].vy
}
if balls[i].x >= gx - 1 && balls[i].x <= gx + 1 && balls[i].y == 0 {
balls[i].inGoal = true
continue
}
tui.Write(balls[i].x, balls[i].y, "⚽", tui.DefaultStyle)
}
tui.Write(gx, 0, "🥅", tui.DefaultStyle)
w := tui.Write(2, 8, sb.String(), tui.DefaultStyle)
tui.MoveCursor(2 + w, 8)
err := tui.Present()
if err != nil {
log.Fatal(err)
}
select {
case ev := <-tui.Events():
switch ev := ev.(type) {
case tui.TextInput:
sb.WriteRune(rune(ev))
case error:
log.Fatal(ev)
}
case <-time.After(time.Second / 16):
}
}
}
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