Data commit

Task/Honeycombs/Go/honeycombs.go

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