80 lines
5.1 KiB
Luau
80 lines
5.1 KiB
Luau
-- Debug tools + misc imgui.cpp ports: item picker, DebugFlashStyleColor, DebugLocateItem, context hooks, AddInputCharactersUTF8, ImBezierCubicClosestPoint
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local G = require(game:GetService("ReplicatedStorage"):WaitForChild("ImGui"))
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local ImGui, ImVec2 = G.ImGui, G.ImVec2
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local ctx = ImGui.CreateContext(); G.ImGui_ImplRoblox.Init()
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local io = ImGui.GetIO()
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local failed = {}
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local function check(ok, msg) if not ok then table.insert(failed, msg); print("FAIL " .. msg) end end
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-- ImBezierCubicClosestPoint: straight-line cubic (0,0)-(30,0)-(60,0)-(90,0): closest point to (45,10) is (45,0)
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local p1, p2, p3, p4 = ImVec2(0, 0), ImVec2(30, 0), ImVec2(60, 0), ImVec2(90, 0)
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local cp = G.ImBezierCubicClosestPoint(p1, p2, p3, p4, ImVec2(45, 10), 20)
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check(math.abs(cp.x - 45) < 1e-3 and math.abs(cp.y) < 1e-6, ("ImBezierCubicClosestPoint %g,%g"):format(cp.x, cp.y))
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-- Curved: result must lie on the curve (distance to a dense sampling of the curve ~0) and beat the endpoints
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local q1, q2, q3, q4 = ImVec2(0, 0), ImVec2(0, 100), ImVec2(100, 100), ImVec2(100, 0)
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local target = ImVec2(50, 120)
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for _, r in { G.ImBezierCubicClosestPoint(q1, q2, q3, q4, target, 64), G.ImBezierCubicClosestPointCasteljau(q1, q2, q3, q4, target, 0.25) } do
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check(math.abs(r.x - 50) < 0.5 and math.abs(r.y - 75) < 0.5, ("closest point on curve %g,%g (expected ~50,75)"):format(r.x, r.y))
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end
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-- AddInputCharactersUTF8 queues one Text event per codepoint
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io:AddInputCharactersUTF8("a\u{e9}\u{20ac}\u{1F600}")
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local chars = {}
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for _, e in ctx.InputEventsQueue.Data do if e.Type == G.ImGuiInputEventType.Text then table.insert(chars, e.Text.Char) end end
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-- (this build has IM_UNICODE_CODEPOINT_MAX = 0xFFFF like upstream's default ImWchar16: U+1F600 becomes IM_UNICODE_CODEPOINT_INVALID)
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check(#chars == 4 and chars[1] == 0x61 and chars[2] == 0xE9 and chars[3] == 0x20AC and chars[4] == ((G.IM_UNICODE_CODEPOINT_MAX >= 0x1F600) and 0x1F600 or 0xFFFD), "AddInputCharactersUTF8 " .. table.concat(chars, ","))
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-- Context hooks
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local log = {}
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local function hook(t, name)
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local h = G.ImGuiContextHook(); h.Type = t; h.Callback = function(c, hk) table.insert(log, name) end
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return ImGui.AddContextHook(ctx, h)
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end
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local T = G.ImGuiContextHookType
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hook(T.NewFramePre, "nfpre"); hook(T.NewFramePost, "nfpost"); hook(T.RenderPre, "rpre"); local rpost = hook(T.RenderPost, "rpost")
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-- Style color flash
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local col = ImGui.GetStyle().Colors[G.ImGuiCol.Button]
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local orig = { col.x, col.y, col.z, col.w }
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local f, rect, picked, broke, button_id = 0, nil, nil, 0, 0
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ctx.DebugBreakCallback = function() broke += 1 end
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game:GetService("RunService").Stepped:Connect(function()
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f += 1
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G.ImGui_ImplRoblox.NewFrame()
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if rect and f == 5 then io:AddMousePosEvent((rect[1].x + rect[2].x) / 2, (rect[1].y + rect[2].y) / 2) end
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if f == 6 then ImGui.DebugStartItemPicker() end
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if f == 8 then io:AddMouseButtonEvent(0, true) elseif f == 9 then io:AddMouseButtonEvent(0, false) end
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ImGui.NewFrame()
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if f == 1 then check(table.concat(log, " ") == "nfpre nfpost", "hooks after NewFrame: " .. table.concat(log, " ")) end
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if f == 8 then picked = ctx.DebugItemPickerBreakId end
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if f == 3 then ImGui.DebugFlashStyleColor(G.ImGuiCol.Button) end
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ImGui.SetNextWindowPos(ImVec2(10, 10), G.ImGuiCond.Always)
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ImGui.Begin("DebugTools")
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ImGui.Button("Target")
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if f == 2 then local a, b = ImGui.GetItemRectMin(), ImGui.GetItemRectMax(); rect = { ImVec2(a.x, a.y), ImVec2(b.x, b.y) } end
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local target_id = ctx.LastItemData.ID
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button_id = target_id
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if f == 12 then ImGui.DebugLocateItem(target_id) end
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if f == 13 then check(ctx.DebugLocateId == 0, "DebugLocateItem resolved by ItemAdd()") end
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ImGui.DebugDrawItemRect(); ImGui.DebugDrawCursorPos(); ImGui.DebugDrawLineExtents()
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ImGui.DebugTextUnformattedWithLocateItem(("id 0x%08X here"):format(target_id))
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ImGui.End()
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ImGui.SetNextWindowPos(ImVec2(400, 10), G.ImGuiCond.Always); ImGui.ShowMetricsWindow()
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ImGui.SetNextWindowPos(ImVec2(400, 300), G.ImGuiCond.Always); ImGui.ShowDebugLogWindow()
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if f == 4 then
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local c = ImGui.GetStyle().Colors[G.ImGuiCol.Button]
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check(c.w == 1.0 and ctx.DebugFlashStyleColorIdx == G.ImGuiCol.Button, "flash active")
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end
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ImGui.Render(); G.ImGui_ImplRoblox.RenderDrawData(ImGui.GetDrawData())
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if f == 1 then check(table.concat(log, " ") == "nfpre nfpost rpre rpost", "hooks after Render: " .. table.concat(log, " ")); ImGui.RemoveContextHook(ctx, rpost) end
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if f == 2 then check(table.concat(log, " ") == "nfpre nfpost rpre rpost nfpre nfpost rpre", "RemoveContextHook: " .. table.concat(log, " ")) end
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if f == 60 then
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local c = ImGui.GetStyle().Colors[G.ImGuiCol.Button]
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check(c.x == orig[1] and c.y == orig[2] and c.z == orig[3] and c.w == orig[4] and ctx.DebugFlashStyleColorIdx == nil, "flash restored color exactly")
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check(picked ~= nil and picked ~= 0 and picked == button_id, ("item picker set DebugItemPickerBreakId (%s vs %s)"):format(tostring(picked), tostring(button_id)))
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check(not ctx.DebugItemPickerActive and broke >= 1, ("item picker break hook called (%d)"):format(broke))
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if #failed == 0 then print("DEBUGTOOLS OK") end
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end
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end)
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