WIP: port alien swarm and extend engine for asw

2026-08-08 17:59:37 +00:00 · 2023-10-03 20:02:58 +03:00
parent 7d3c0d8b5a
commit 8322130890
617 changed files with 161164 additions and 220 deletions
@@ -0,0 +1,102 @@
+//
+// InputKBWin32.cpp
+//
+
+#include <windows.h>
+#include "InputKBWin32.h"
+
+// Init statics and constants
+InputKBWin32 InputKBWin32::s_staticInstance;
+
+
+
+InputKBWin32::InputKBWin32()
+{
+  m_keyDownBufferIndex = 0;
+
+  Init();
+}
+
+
+
+InputKBWin32::~InputKBWin32()
+{
+}
+
+
+void InputKBWin32::Init()
+{
+  for(int kIndex=0; kIndex<MAX_KEYS; ++kIndex)
+  {
+    m_keyDownBuffer[0][kIndex] = 0;
+    m_keyDownBuffer[1][kIndex] = 0;
+    m_keyStatus[kIndex] = KEY_STATUS_UP;
+  }
+}
+
+
+void InputKBWin32::Update()
+{
+//#define HAS_WINDOW_UPDATE // Define this if we have a window and a message pump
+
+  int lastBuffIndex = !m_keyDownBufferIndex;
+  int curBuffIndex = m_keyDownBufferIndex;
+  
+  m_keyDownBufferIndex = lastBuffIndex; // Flip buffers
+
+  char* bufferCurrent = &m_keyDownBuffer[curBuffIndex][0];
+  char* bufferLast = &m_keyDownBuffer[lastBuffIndex][0];
+
+  // Get the button states from Win32
+#ifdef HAS_WINDOW_UPDATE
+  // We have a window and message pump
+  BYTE win32KeyBuffer[256];
+  GetKeyboardState(win32KeyBuffer);
+#else // HAS_WINDOW_UPDATE
+  short win32KeyBuffer[256];
+  for(int vkIndex=0; vkIndex < 256; ++vkIndex)
+  {
+    win32KeyBuffer[vkIndex] = GetAsyncKeyState(vkIndex);
+  }
+#endif //HAS_WINDOW_UPDATE
+
+  // Find state changes
+  for(int kIndex=0; kIndex < MAX_KEYS; ++kIndex)
+  {
+    int status;
+  
+    // Convert win32 keystate to true / false
+#ifdef HAS_WINDOW_UPDATE
+    if(win32KeyBuffer[kIndex] & (1<<7))
+#else // HAS_WINDOW_UPDATE
+    if(win32KeyBuffer[kIndex] & (1<<15))
+#endif // HAS_WINDOW_UPDATE
+    {
+      bufferCurrent[kIndex] = true;
+    }
+    else
+    {
+      bufferCurrent[kIndex] = false;
+    }
+
+    status = 0;
+    if(bufferCurrent[kIndex])
+    {
+      status |= KEY_STATUS_DOWN;
+      if(!bufferLast[kIndex])
+      {
+        status |= KEY_STATUS_PRESSED;
+      }
+    }
+    else
+    {
+      status |= KEY_STATUS_UP;
+      if(bufferLast[kIndex])
+      {
+        status |= KEY_STATUS_RELEASED;
+      }
+    }
+  
+    m_keyStatus[kIndex] = status;
+  }
+}