124 lines
3.5 KiB
Go
124 lines
3.5 KiB
Go
package main
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import (
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rl "github.com/gen2brain/raylib-go/raylib"
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"math"
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"strings"
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)
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type hexagon struct {
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x, y float32
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letter rune
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selected bool
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}
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func (h hexagon) points(r float32) []rl.Vector2 {
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res := make([]rl.Vector2, 7)
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for i := 0; i < 7; i++ {
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fi := float64(i)
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res[i].X = h.x + r*float32(math.Cos(math.Pi*fi/3))
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res[i].Y = h.y + r*float32(math.Sin(math.Pi*fi/3))
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}
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return res
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}
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func inHexagon(pts []rl.Vector2, pt rl.Vector2) bool {
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rec := rl.NewRectangle(pts[4].X, pts[4].Y, pts[5].X-pts[4].X, pts[2].Y-pts[4].Y)
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if rl.CheckCollisionPointRec(pt, rec) {
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return true
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}
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if rl.CheckCollisionPointTriangle(pt, pts[2], pts[3], pts[4]) {
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return true
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}
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if rl.CheckCollisionPointTriangle(pt, pts[0], pts[1], pts[5]) {
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return true
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}
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return false
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}
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func DrawLineStrip(points []rl.Vector2, pointsCount int32, color rl.Color) {
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for i := int32(0); i < pointsCount - 1; i++ {
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rl.DrawLineV(points[i], points[i+1], color)
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}
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}
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func main() {
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screenWidth := int32(600)
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screenHeight := int32(600)
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rl.InitWindow(screenWidth, screenHeight, "Honeycombs")
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rl.SetTargetFPS(60)
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letters := "LRDGITPFBVOKANUYCESM"
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runes := []rune(letters)
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var combs [20]hexagon
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var pts [20][]rl.Vector2
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x1, y1 := 150, 100
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x2, y2 := 225, 143
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w, h := 150, 87
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r := float32(w / 3)
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for i := 0; i < 20; i++ {
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var x, y int
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if i < 12 {
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x = x1 + (i%3)*w
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y = y1 + (i/3)*h
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} else {
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x = x2 + (i%2)*w
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y = y2 + (i-12)/2*h
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}
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combs[i] = hexagon{float32(x), float32(y), runes[i], false}
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pts[i] = combs[i].points(r)
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}
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nChosen := 0
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sChosen := "Chosen: "
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lChosen := "Last chosen: "
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for !rl.WindowShouldClose() {
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rl.BeginDrawing()
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rl.ClearBackground(rl.RayWhite)
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for i, c := range combs {
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ctr := pts[i][0]
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ctr.X -= r
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index := -1
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if key := rl.GetKeyPressed(); key > 0 {
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if key >= 97 && key <= 122 {
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key -= 32
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}
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index = strings.IndexRune(letters, key)
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} else if rl.IsMouseButtonPressed(rl.MouseLeftButton) {
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pt := rl.Vector2{float32(rl.GetMouseX()), float32(rl.GetMouseY())}
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for i := 0; i < 20; i++ {
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if inHexagon(pts[i], pt) {
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index = i
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break
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}
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}
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}
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if index >= 0 {
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if !combs[index].selected {
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combs[index].selected = true
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nChosen++
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s := string(combs[index].letter)
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sChosen += s
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lChosen = "Last chosen: " + s
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if nChosen == 20 {
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lChosen += " (All 20 Chosen!)"
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}
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}
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}
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if !c.selected {
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rl.DrawPoly(ctr, 6, r-1, 30, rl.Yellow)
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} else {
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rl.DrawPoly(ctr, 6, r-1, 30, rl.Magenta)
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}
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rl.DrawText(string(c.letter), int32(c.x)-5, int32(c.y)-10, 32, rl.Black)
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DrawLineStrip(pts[i], 7, rl.Black)
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rl.DrawText(sChosen, 100, 525, 24, rl.Black)
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rl.DrawText(lChosen, 100, 565, 24, rl.Black)
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}
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rl.EndDrawing()
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}
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rl.CloseWindow()
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}
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