Create mimgui-overlay.lua

mimgui-overlay.lua

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+script_name 'mimgui overlay example'
+
+local imgui = require 'mimgui'
+local vk = require 'vkeys'
+local new = imgui.new
+
+-- overlay
+local overlay = {
+    show = new.bool(true),
+    offset = new.int(10),
+    position = new.int(1)
+}
+imgui.OnFrame(function() return overlay.show[0] and not isGamePaused() end,
+function()
+    local io = imgui.GetIO()
+    local pos = overlay.position[0]
+    if pos > 0 then
+        x = (pos == 1 or pos == 3) and overlay.offset[0] or io.DisplaySize.x - overlay.offset[0]
+        y = (pos == 1 or pos == 2) and overlay.offset[0] or io.DisplaySize.y - overlay.offset[0]
+        local window_pos_pivot = imgui.ImVec2((pos == 1 or pos == 3) and 0 or 1, (pos == 1 or pos == 2) and 0 or 1)
+        imgui.SetNextWindowPos(imgui.ImVec2(x, y), imgui.Cond.Always, window_pos_pivot)
+    end
+    local flags = imgui.WindowFlags.NoDecoration + imgui.WindowFlags.AlwaysAutoResize + imgui.WindowFlags.NoSavedSettings
+    if pos ~= 0 then
+        flags = flags + imgui.WindowFlags.NoMove + imgui.WindowFlags.NoInputs
+    end
+    imgui.Begin('overlay', nil, flags)
+    imgui.Text('Simple overlay\nin the corner of the screen.\nPress key 2 to open settings menu')
+    imgui.Separator()
+    if imgui.IsMousePosValid() then
+        imgui.Text('Mouse Position: (%.1f, %.1f)', io.MousePos.x, io.MousePos.y)
+    else
+        imgui.Text('Mouse Position: <invalid>')
+    end
+    imgui.End()
+end).HideCursor = true
+
+-- settings window
+local show_settings_window = new.bool()
+imgui.OnFrame(function() return show_settings_window[0] end,
+function()
+    imgui.Begin('Overlay settings', show_settings_window)
+    imgui.Checkbox('Show', overlay.show)
+    imgui.DragInt('Offset', overlay.offset, 1, 0, 200)
+    imgui.ComboStr('Position', overlay.position, 'Free\0Up-Left\0Up-Right\0Down-Left\0Down-Right\0\0')
+    imgui.End()
+end)
+
+function main()
+    while true do
+        wait(20)
+        if wasKeyPressed(vk.VK_2) then
+            show_settings_window[0] = not show_settings_window[0]
+        end
+    end
+end