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◆ main openmsx / src / imgui / ImGuiCheatFinder.cc
4.9 KiB · C++ · last changed chore(): initial commit 1 month ago source blame history raw
e8555c89 Andy McCall 1 
#include "ImGuiCheatFinder.hh"
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#include "ImGuiCpp.hh"
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#include "ImGuiManager.hh"
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#include "ImGuiUtils.hh"
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#include "narrow.hh"
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#include "stl.hh"
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#include <ranges>
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namespace openmsx {
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using namespace std::literals;
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void ImGuiCheatFinder::paint(MSXMotherBoard* /*motherBoard*/)
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{
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	if (!show) return;
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	bool start = false;
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	std::string searchExpr;
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	ImGui::SetNextWindowSize(gl::vec2{35, 0} * ImGui::GetFontSize(), ImGuiCond_FirstUseEver);
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	im::Window("Cheat Finder", &show, [&]{
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		const auto& style = ImGui::GetStyle();
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		auto tSize = ImGui::CalcTextSize("=="sv).x + 2.0f * style.FramePadding.x;
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		auto bSpacing = 2.0f;
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		auto height = 12.5f * ImGui::GetTextLineHeightWithSpacing();
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		auto sWidth = 2.0f * (style.WindowBorderSize + style.WindowPadding.x)
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		              + style.IndentSpacing + 6 * tSize + 5 * bSpacing;
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		im::Child("search", {sWidth, height}, ImGuiChildFlags_Borders, [&]{
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			ImGui::TextUnformatted("Search"sv);
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			HelpMarker("OpenMSX cheat finder. See here for a quick tutorial:\n"
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			           "  openMSX tutorial: Working with the Cheat Finder\n"
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			           "  http://www.youtube.com/watch?v=F11ltfkCtKo\n"
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			           "The UI has changed, but the ideas remain the same.");
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			im::Disabled(searchResults.empty(), [&]{
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				ImGui::TextUnformatted("Compare"sv);
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				im::Indent([&]{
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					auto bSize = ImVec2{tSize, 0.0f};
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					if (ImGui::Button("<",  bSize)) searchExpr = "$new < $old";
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					simpleToolTip("Search for memory locations with strictly decreased value");
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					ImGui::SameLine(0.0f, bSpacing);
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					if (ImGui::Button("<=", bSize)) searchExpr = "$new <= $old";
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					simpleToolTip("Search for memory locations with decreased value");
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					ImGui::SameLine(0.0f, bSpacing);
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					if (ImGui::Button("!=", bSize)) searchExpr = "$new != $old";
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					simpleToolTip("Search for memory locations with changed value");
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					ImGui::SameLine(0.0f, bSpacing);
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					if (ImGui::Button("==", bSize)) searchExpr = "$new == $old";
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					simpleToolTip("Search for memory locations with unchanged value");
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					ImGui::SameLine(0.0f, bSpacing);
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					if (ImGui::Button(">=", bSize)) searchExpr = "$new >= $old";
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					simpleToolTip("Search for memory locations with increased value");
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					ImGui::SameLine(0.0f, bSpacing);
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					if (ImGui::Button(">",  bSize)) searchExpr = "$new > $old";
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					simpleToolTip("Search for memory locations with strictly increased value");
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				});
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				ImGui::TextUnformatted("Specific value"sv);
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				im::Indent([&]{
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					ImGui::SetNextItemWidth(3 * ImGui::GetFontSize());
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					ImGui::InputScalar("##value", ImGuiDataType_U8, &searchValue);
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					ImGui::SameLine();
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					if (ImGui::Button("Go")) {
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						searchExpr = strCat("$new == ", searchValue);
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					}
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					simpleToolTip("Search for memory locations with a specific value");
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				});
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			});
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			start |= ImGui::Button("Restart search");
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		});
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		ImGui::SameLine();
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		im::Child("result", {0.0f, height}, ImGuiChildFlags_Borders, [&]{
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			auto num = searchResults.size();
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			if (num == 0) {
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				ImGui::TextUnformatted("Results: no remaining locations"sv);
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				start |= ImGui::Button("Start a new search");
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			} else {
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				if (num == 1) {
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					ImGui::TextUnformatted("Results: 1 remaining location"sv);
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				} else {
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					ImGui::Text("Results: %d remaining locations", narrow<int>(num));
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				}
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				int flags = ImGuiTableFlags_RowBg |
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				            ImGuiTableFlags_BordersV |
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				            ImGuiTableFlags_BordersOuter |
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				            ImGuiTableFlags_ScrollY;
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				im::Table("##table", 3, flags, [&]{
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					ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
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					ImGui::TableSetupColumn("Address");
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					ImGui::TableSetupColumn("Previous");
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					ImGui::TableSetupColumn("New value");
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					ImGui::TableHeadersRow();
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					im::ListClipper(searchResults.size(), [&](int i) {
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						const auto& row = searchResults[i];
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						if (ImGui::TableNextColumn()) { // addr
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							ImGui::Text("0x%04x", row.address);
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						}
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						if (ImGui::TableNextColumn()) { // old
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							ImGui::Text("%d", row.oldValue);
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						}
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						if (ImGui::TableNextColumn()) { // new
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							ImGui::Text("%d", row.newValue);
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						}
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					});
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				});
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			}
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		});
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	});
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	if (start) {
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		manager.execute(TclObject("cheat_finder::start"));
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		searchExpr = "1"; // could be optimized, but good enough
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	}
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	if (!searchExpr.empty()) {
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		auto result = manager.execute(makeTclList("cheat_finder::search", searchExpr)).value_or(TclObject{});
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		searchResults = to_vector(std::views::transform(xrange(result.size()), [&](size_t i) {
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			auto line = result.getListIndexUnchecked(i);
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			auto addr     = line.getListIndexUnchecked(0).getOptionalInt().value_or(0);
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			auto oldValue = line.getListIndexUnchecked(1).getOptionalInt().value_or(0);
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			auto newValue = line.getListIndexUnchecked(2).getOptionalInt().value_or(0);
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			return SearchResult{.address = narrow_cast<uint16_t>(addr),
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			                    .oldValue = narrow_cast<uint8_t>(oldValue),
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			                    .newValue = narrow_cast<uint8_t>(newValue)};
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		}));
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	}
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}
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} // namespace openmsx