From 5daae26a1213b436efc2c1ac0ac0909aad5f8f7c Mon Sep 17 00:00:00 2001
From: Robert <Robert-Altner@t-online.de>
Date: Tue, 19 May 2020 14:57:35 +0200
Subject: [PATCH] Added button checks

---
 SDLU/CMakeLists.txt            |  2 +-
 SDLU/SDLU.hpp                  |  2 ++
 SDLU/structures/CMakeLists.txt |  2 ++
 SDLU/structures/Mouse.cpp      | 16 ++++++++++++
 SDLU/structures/Mouse.hpp      | 46 ++++++++++++++++++++++++++++++++++
 SDLU_Example/main.cpp          | 12 ++++++++-
 6 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 SDLU/structures/Mouse.cpp
 create mode 100644 SDLU/structures/Mouse.hpp

diff --git a/SDLU/CMakeLists.txt b/SDLU/CMakeLists.txt
index 6172643..0cb67e4 100644
--- a/SDLU/CMakeLists.txt
+++ b/SDLU/CMakeLists.txt
@@ -2,7 +2,7 @@ set(PNAME SDLU)
 
 add_library(${PNAME}
 	alibi.cpp SDLU.hpp Util.hpp
- "structures/Color.cpp")
+ "structures/Color.cpp" "structures/Mouse.cpp")
 
 set_property(TARGET ${PNAME} PROPERTY CXX_STANDARD 17)
 
diff --git a/SDLU/SDLU.hpp b/SDLU/SDLU.hpp
index 3e5b116..89acf36 100644
--- a/SDLU/SDLU.hpp
+++ b/SDLU/SDLU.hpp
@@ -2,4 +2,6 @@
 
 #include "graphics/RenderWindow.hpp"
 
+#include "structures/Mouse.hpp"
+
 #include "exceptions/Exceptions.hpp"
\ No newline at end of file
diff --git a/SDLU/structures/CMakeLists.txt b/SDLU/structures/CMakeLists.txt
index cbc87fe..1f7d68f 100644
--- a/SDLU/structures/CMakeLists.txt
+++ b/SDLU/structures/CMakeLists.txt
@@ -2,4 +2,6 @@ target_sources(${PNAME} PRIVATE
 	${CMAKE_CURRENT_SOURCE_DIR}/Vector2.hpp
 	${CMAKE_CURRENT_SOURCE_DIR}/Color.hpp
 	${CMAKE_CURRENT_SOURCE_DIR}/Color.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/Mouse.hpp
+	${CMAKE_CURRENT_SOURCE_DIR}/Mouse.cpp
 )
\ No newline at end of file
diff --git a/SDLU/structures/Mouse.cpp b/SDLU/structures/Mouse.cpp
new file mode 100644
index 0000000..7855dc3
--- /dev/null
+++ b/SDLU/structures/Mouse.cpp
@@ -0,0 +1,16 @@
+#include "Mouse.hpp"
+
+#include <SDL_mouse.h>
+
+namespace sdlu
+{
+    Uint32 Mouse::GetButtonState()
+    {
+        return SDL_GetMouseState(NULL, NULL);
+    }
+
+    bool Mouse::IsButtonDown(Button button)
+    {
+        return (GetButtonState() & SDL_BUTTON(button));
+    }
+}
\ No newline at end of file
diff --git a/SDLU/structures/Mouse.hpp b/SDLU/structures/Mouse.hpp
new file mode 100644
index 0000000..5bc6adc
--- /dev/null
+++ b/SDLU/structures/Mouse.hpp
@@ -0,0 +1,46 @@
+/**
+ * @file Mouse.hpp
+ * @brief A static class to provide easy handling of the mouse
+ * @author Lauchmelder23
+ * @date 19.05.2020
+ */
+#pragma once
+#include <SDL_mouse.h>
+#include <structures/Vector2.hpp>
+
+namespace sdlu
+{
+    /**
+     * @brief A static class that contains/handles data about
+     *        mouse position and button states
+     */
+    class Mouse
+    {
+    public:
+        /**
+         * @brief Mouse buttons
+         */
+        enum Button {
+            Left = SDL_BUTTON_LEFT,
+            Right = SDL_BUTTON_RIGHT,
+            Middle = SDL_BUTTON_MIDDLE,
+            XButton1 = SDL_BUTTON_X1,
+            XButton2 = SDL_BUTTON_X2
+        };
+        
+        /**
+         * @brief Returns the current mouse button state
+         *
+         * @return A 32-bit mask of the current button state
+         */
+        static Uint32 GetButtonState();
+
+        /**
+         * @brief Checks if a specific button is pressed
+         *
+         * @param[in] button The button to check
+         * @return True if the button is pressed
+         */
+        static bool IsButtonDown(Button button);
+    };
+}
\ No newline at end of file
diff --git a/SDLU_Example/main.cpp b/SDLU_Example/main.cpp
index a7217d6..a4e1631 100644
--- a/SDLU_Example/main.cpp
+++ b/SDLU_Example/main.cpp
@@ -30,8 +30,11 @@ int main(int argc, char** argv)
 
     SDL_Event event;
     float t = 0.f;
+
+    std::string title = "";
     while (window.IsOpen())
     {
+        title = "";
         while (window.PollEvent(&event))
         {
             switch (event.window.event)
@@ -53,7 +56,14 @@ int main(int argc, char** argv)
 
         diff = std::chrono::duration_cast<std::chrono::microseconds>
             (std::chrono::steady_clock::now() - start).count();
-        window.SetTitle(std::to_string(1000000 / diff) + " FPS");
+        title += (std::to_string(1000000 / diff) + " FPS | Mouse: ");
+        title += (sdlu::Mouse::IsButtonDown(sdlu::Mouse::Button::Left)) ? "L " : "l ";
+        title += (sdlu::Mouse::IsButtonDown(sdlu::Mouse::Button::Middle)) ? "M " : "m ";
+        title += (sdlu::Mouse::IsButtonDown(sdlu::Mouse::Button::Right)) ? "R " : "r ";
+        title += (sdlu::Mouse::IsButtonDown(sdlu::Mouse::Button::XButton1)) ? "X1 " : "x1 ";
+        title += (sdlu::Mouse::IsButtonDown(sdlu::Mouse::Button::XButton2)) ? "X2" : "x2";
+
+        window.SetTitle(title);
         start = std::chrono::steady_clock::now();
     }