Fix inputs when no gamepad is connected

source/input/CombinedInput.h

@@ -0,0 +1,20 @@
+#pragma once
+
+class CombinedInput : public Input {
+public:
+    void combine(const Input &b) {
+        data.buttons_h |= b.data.buttons_h;
+    }
+
+    void process() {
+        data.buttons_d |= (data.buttons_h & (~lastData.buttons_h));
+        data.buttons_r |= (lastData.buttons_h & (~data.buttons_h));
+        lastData.buttons_h = data.buttons_h;
+    }
+
+    void reset() {
+        data.buttons_h = 0;
+        data.buttons_d = 0;
+        data.buttons_r = 0;
+    }
+};

source/input/Input.h

@@ -11,12 +11,6 @@ public:
     //!Destructor
     virtual ~Input() = default;
 
-    void combine(const Input &b) {
-        data.buttons_d |= b.data.buttons_d;
-        data.buttons_h |= b.data.buttons_h;
-        data.buttons_r |= b.data.buttons_r;
-    }
-
     enum eButtons {
         BUTTON_NONE     = 0x0000,
         VPAD_TOUCH      = 0x80000000,
@@ -63,4 +57,5 @@ public:
 
     PadData data{};
     PadData lastData{};
+
 };

source/input/VPADInput.h

@@ -49,6 +49,8 @@ public:
             data.y = -(height >> 1) + (int32_t) (float) height - (((float) tpCalib.y / 720.0f) * (float) height);
 
             return true;
+        } else {
+            data.buttons_h = 0;
         }
         return false;
     }

source/input/WPADInput.h

@@ -125,8 +125,10 @@ public:
     }
 
     bool update(int32_t width, int32_t height) {
+        lastData = data;
         WPADExtensionType type;
         if (WPADProbe(channel, &type) != 0) {
+            data.buttons_h = 0;
             return false;
         }
 

source/main.cpp

@@ -10,6 +10,7 @@
 #include <coreinit/energysaver.h>
 #include <padscore/kpad.h>
 #include <input/WPADInput.h>
+#include <input/CombinedInput.h>
 
 #include "utils/logger.h"
 #include "utils/WiiUScreen.h"
@@ -77,6 +78,7 @@ int main(int argc, char **argv) {
 void main_loop() {
     DEBUG_FUNCTION_LINE("Creating state");
     std::unique_ptr<MainApplicationState> state = std::make_unique<MainApplicationState>();
+    CombinedInput baseInput;
     VPadInput vpadInput;
     WPADInput wpadInputs[4] = {
             WPAD_CHAN_0,
@@ -92,12 +94,17 @@ void main_loop() {
 
     DEBUG_FUNCTION_LINE("Entering main loop");
     while (WHBProcIsRunning()) {
-        vpadInput.update(1280, 720);
-        for (auto & wpadInput : wpadInputs) {
-            wpadInput.update(1280, 720);
-            vpadInput.combine(wpadInput);
+        baseInput.reset();
+        if (vpadInput.update(1280, 720)) {
+            baseInput.combine(vpadInput);
         }
-        state->update(&vpadInput);
+        for (auto &wpadInput: wpadInputs) {
+            if(wpadInput.update(1280, 720)){
+                baseInput.combine(wpadInput);
+            }
+        }
+        baseInput.process();
+        state->update(&baseInput);
         state->render();
     }
 }