From 55dc8456130d11b1947a0bcdfdb32f439fc066f4 Mon Sep 17 00:00:00 2001
From: zhenyan121 <3367366583@qq.com>
Date: Sun, 7 Dec 2025 15:52:23 +0800
Subject: [PATCH] add CoordinateTools

---
 src/utils/CoordinateTools.cpp | 16 ++++++++++++++++
 src/utils/CoordinateTools.h   |  6 ++++++
 2 files changed, 22 insertions(+)
 create mode 100644 src/utils/CoordinateTools.cpp
 create mode 100644 src/utils/CoordinateTools.h

diff --git a/src/utils/CoordinateTools.cpp b/src/utils/CoordinateTools.cpp
new file mode 100644
index 0000000..8e3c55b
--- /dev/null
+++ b/src/utils/CoordinateTools.cpp
@@ -0,0 +1,16 @@
+#include "CoordinateTools.h"
+
+std::pair<int, int> physicalToLogical(const float screenX, const float screenY, SDL_Renderer* renderer) {
+    // 将窗口坐标转为逻辑坐标
+    float logicalX, logicalY;
+    SDL_RenderCoordinatesFromWindow(
+        renderer,
+        static_cast<float>(screenX),
+        static_cast<float>(screenY),
+        &logicalX,
+        &logicalY
+    );
+    int mouseX = static_cast<int>(logicalX);
+    int mouseY = static_cast<int>(logicalY);
+    return {logicalX, logicalY};
+}
\ No newline at end of file
diff --git a/src/utils/CoordinateTools.h b/src/utils/CoordinateTools.h
new file mode 100644
index 0000000..de7ec32
--- /dev/null
+++ b/src/utils/CoordinateTools.h
@@ -0,0 +1,6 @@
+#pragma once
+#include <SDL3/SDL.h>
+#include <utility>
+
+std::pair<int, int> physicalToLogical(const float screenX, const float screenY, SDL_Renderer* renderer);
+