commit df5685e12476a5200461724c0b30b66034bf0602
Author: silva guimaraes <silva__guimaraes@hotmail.com>
Date:   Mon Aug 14 18:40:17 2023 -0300

    commit inicial

diff --git a/main.go b/main.go
new file mode 100644
index 0000000..02a72d8
--- /dev/null
+++ b/main.go
@@ -0,0 +1,104 @@
+package main
+
+import (
+	"math"
+
+	rl "github.com/gen2brain/raylib-go/raylib"
+)
+
+
+type magnet struct {
+    pos rl.Vector2
+    color rl.Color
+}
+
+type state struct {
+    windowHeight  int32
+    windowWidth  int32
+    magnetsDistance float32
+}
+
+func main() {
+
+    state := state{
+        windowWidth: 800,
+        windowHeight: 450,
+    }
+
+	rl.InitWindow(
+        state.windowWidth, state.windowHeight, 
+        "raylib [core] example - basic window",
+    )
+	defer rl.CloseWindow()
+	rl.SetTargetFPS(60)
+
+    const RADIUS = 10 
+
+    magnets := []magnet{
+        {
+            // pos: rl.Vector2{X: 100, Y: 100},
+            color: rl.NewColor(255, 0, 0, 255),
+        },
+        {
+            // pos: rl.Vector2{X: 200, Y: 200},
+            color: rl.NewColor(0, 255, 0, 255),
+        },
+        {
+            // pos: rl.Vector2{X: 200, Y: 100},
+            color: rl.NewColor(0, 0, 255, 255),
+        },
+    }
+
+    // pocisionar imas no meio da tela
+    xCenter := float32(state.windowWidth / 2)
+    yCenter := float32(state.windowHeight / 2)
+    magnetsDistance := float32(100)
+    for i := range magnets {
+        angle := 2.0 * math.Pi * float64(i) / float64(len(magnets))
+
+        magnets[i].pos = rl.Vector2{
+            X: float32(math.Cos(angle)) * magnetsDistance + xCenter,
+            Y: float32(math.Sin(angle)) * magnetsDistance + yCenter,
+        }
+    }
+
+    
+    verticalGrids := 10
+    horizontalGrids := 10
+
+    grid := make([][]rl.Color, verticalGrids)
+    for i := range grid {
+        grid[i] = make([]rl.Color, horizontalGrids)
+        for j := range grid[i] {
+            grid[i][j] = rl.NewColor(10, 10, 10, 255)
+        }
+    }
+
+    ball := rl.Vector2{0, 0}
+
+    gridSize := rl.Vector2{
+        X: float32(state.windowWidth / int32(verticalGrids)),
+        Y: float32(state.windowHeight / int32(horizontalGrids)),
+    }
+
+	for !rl.WindowShouldClose() {
+		rl.BeginDrawing()
+		rl.ClearBackground(rl.Black)
+
+        for y := range grid {
+            for x := range grid[y] {
+                pos := rl.Vector2{
+                    X: gridSize.X * float32(x),
+                    Y: gridSize.Y * float32(y),
+                }
+                rl.DrawRectangleV(pos, gridSize, grid[y][x])
+            }
+        }
+
+        for i := range magnets {
+            rl.DrawCircleV(magnets[i].pos, RADIUS, magnets[i].color)
+        }
+        rl.DrawCircleV(ball, RADIUS/2, rl.NewColor(100, 100, 100, 255))
+		rl.EndDrawing()
+	}
+}