voigt.tngl.sh
this repo has no description
add coordinate system
+102
+4
coordinates/go.mod
+4
coordinates/go.mod
+4
coordinates/go.sum
+4
coordinates/go.sum
···
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github.com/firefly-zero/firefly-go v0.9.5 h1:BzBr4t76bDVVFwNaWJixs1XasqLNBIdg0k9JXblBfU4=
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github.com/firefly-zero/firefly-go v0.9.5/go.mod h1:+X/XGyPdES51OESkV8NSf1mszEBZionoROM7x2pBofw=
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github.com/orsinium-labs/tinymath v1.0.0 h1:Uzp3GmjWIBxMObx4MQi9ACDu4Q8WKjSRakB1OMo9Bu0=
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github.com/orsinium-labs/tinymath v1.0.0/go.mod h1:WPXX6ei3KSXG7JfA03a+ekCYaY9SWN4I+JRl2p6ck+A=
+94
coordinates/main.go
+94
coordinates/main.go
···
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package main
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import (
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"github.com/firefly-zero/firefly-go/firefly"
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)
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var (
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font firefly.Font
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cheatShowCoordinateSystem bool = true
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)
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const SCREENWIDTH = 240
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const SCREENHEIGHT = 160
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func init() {
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firefly.Cheat = cheat
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firefly.Boot = boot
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firefly.Render = render
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}
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func cheat(cmd, val int) int {
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switch cmd {
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case 1:
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cheatShowCoordinateSystem = !cheatShowCoordinateSystem
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return 0
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default:
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return 0
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}
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}
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func boot() {
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font = firefly.LoadFile("font", nil).Font()
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}
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func render() {
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firefly.ClearScreen(firefly.ColorWhite)
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if cheatShowCoordinateSystem {
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drawCoordinateSystem()
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} else {
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firefly.ClearScreen(firefly.ColorNone)
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}
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}
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func translatePoint(p firefly.Point) firefly.Point {
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x := p.X + SCREENWIDTH/2
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y := -p.Y + SCREENHEIGHT/2
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// firefly.LogDebug(strings.Join([]string{"x: ", strconv.Itoa(x), ", y: ", strconv.Itoa(y)}, " "))
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return firefly.Point{X: x, Y: y}
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}
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func drawCoordinateSystem() {
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firefly.DrawLine(translatePoint(firefly.Point{X: 0, Y: -SCREENHEIGHT / 2}), translatePoint(firefly.Point{X: 0, Y: SCREENHEIGHT / 2}), firefly.LineStyle{Color: firefly.ColorLightGray, Width: 1})
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firefly.DrawLine(translatePoint(firefly.Point{X: -SCREENWIDTH / 2, Y: 0}), translatePoint(firefly.Point{X: SCREENWIDTH / 2, Y: 0}), firefly.LineStyle{Color: firefly.ColorLightGray, Width: 1})
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for i := 0; i < SCREENWIDTH; i += 5 {
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// x ->
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if (SCREENWIDTH+i)%5 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: i, Y: -1}), firefly.ColorLightGray)
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}
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if (SCREENWIDTH+i)%10 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: i, Y: -2}), firefly.ColorLightGray)
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}
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// <- x
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if (SCREENWIDTH+i)%5 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: -i, Y: -1}), firefly.ColorLightGray)
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}
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if (SCREENWIDTH+i)%10 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: -i, Y: -2}), firefly.ColorLightGray)
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}
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// y ^
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if (SCREENHEIGHT+i)%5 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: -1, Y: i}), firefly.ColorLightGray)
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}
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if (SCREENWIDTH+i)%10 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: -2, Y: i}), firefly.ColorLightGray)
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}
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// y v
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if (SCREENHEIGHT+i)%5 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: -1, Y: -i}), firefly.ColorLightGray)
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}
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if (SCREENWIDTH+i)%10 == 0 {
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firefly.DrawPoint(translatePoint(firefly.Point{X: -2, Y: -i}), firefly.ColorLightGray)
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}
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}
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firefly.DrawText(
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"y",
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font, translatePoint(firefly.Point{X: -8, Y: (SCREENHEIGHT / 2) - 8}), firefly.ColorLightGray,
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)
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firefly.DrawText(
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"x",
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font, translatePoint(firefly.Point{X: (SCREENWIDTH/2 - 5), Y: -8}), firefly.ColorLightGray,
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)
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}