RectInnerPointHandle

See the RectInnerPointHandleDemo.cs.

using Gridrand.Contracts;
using Gridrand.RimGui.Manual;
using Gridrand.RimGui.Manual.Utility;

namespace Gridrand.RimGui.Extensions.Manual
{
    /// <summary>
    /// Demo for handling a point within a rectangle.
    /// </summary>
    class RectInnerPointHandleDemo : ManualBase, IManual
    {
        Vector2 position = new(150, 150);
        Vector2 min = new(100, 100);
        Vector2 max = new(200, 200);


        Vector2 value = new Vector2(0.5f, 0.5f);
        Vector2 snapValue = new Vector2(0.5f, 0.5f);

        public RectInnerPointHandleDemo(ManualBaseResource p) : base(p)
        {
        }

        public void Draw()
        {
            DrawStandard();
            DrawSnap();
            DrawCustom();
        }

        void DrawStandard()
        {
            Gui.Heading("RectInnerPointHandle");

            Gui.Text(value.ToString("F2"));
            var rect = Ctx.AllocateRect(height: 100);
            Gui.FrameBox(rect);
            // Use handle to interactively move the point inside the rect
            value = Gui.RectInnerPointHandle(rect, value);
        }

        void DrawSnap()
        {
            Gui.Heading("SnapRectInnerPointHandle");

            Gui.Text(snapValue.ToString("F2"));
            var rect = Ctx.AllocateRect(height: 100);
            Gui.FrameBox(rect);
            // Use handle to interactively move the point inside the rect
            snapValue = Gui.SnapRectInnerPointHandle(rect, snapValue);
        }

        void DrawCustom()
        {
            Gui.Heading("Custom");

            // UI inputs for adjusting min and max boundaries
            Gui.LabelSliderInput("Min", ref min, new Vector2(0f, 0f), new Vector2(200f, 200f));
            Gui.LabelSliderInput("Max", ref max, new Vector2(300f, 300f), new Vector2(500f, 500f));

            // Clamp position within min and max
            position = Vector2.Max(min, position);
            position = Vector2.Min(max, position);

            var rect = Ctx.AllocateRect(height: 250f).CreateCentered(200f, 200f);

            // For input interaction
            Gui.NextRect(rect).InteractiveArea();

            // If the InvisibleArea was clicked, update position based on normalized pointer offset
            if (Ctx.IsLastPressed())
            {
                var normalizedOffset = (Input.Pointer.Pos - rect.Position) / rect.Size;
                position = min + normalizedOffset * (max - min);
                position = position.Clamp(min, max);
            }

            // Draw frame box around the rect
            Gui.FrameBox(rect);

            // Display current position as text near the handle
            var normalized = (position - min) / (max - min);
            var screenPos = rect.Position + normalized * rect.Size;
            var textRect = RectUtil.CreateFromCenter(new Vector2(screenPos.x, screenPos.y + 15f), new Vector2(100f, 20f));
            Gui.NextRect(textRect).Text(position.ToString());

            // Use handle to interactively move the point inside the rect
            var ratePos = position.ReampTo01(min, max);
            ratePos = Gui.RectInnerPointHandle(rect, ratePos);
            position = ratePos.Reamp01(min, max);
        }
    }
}