Groundwork for input command proxy

2015-12-11 00:37:48 +01:00
parent 7464facab9
commit bffc97f310
10 changed files with 469 additions and 301 deletions
@@ -0,0 +1,146 @@
+#ifndef InputSystem_h__
+#define InputSystem_h__
+
+#include <array>
+#include <unordered_map>
+
+#include <steam/steam_api.h>
+
+#include "Core/EKeyUp.h"
+#include "Core/EKeyDown.h"
+#include "Core/EMousePress.h"
+#include "Core/EMouseRelease.h"
+#include "Core/EGamepadAxis.h"
+#include "Core/EGamepadButton.h"
+#include "Core/Util/EnumClassHash.h"
+#include "EBindKey.h"
+#include "EBindMouseButton.h"
+#include "EBindGamepadAxis.h"
+#include "EBindGamepadButton.h"
+#include "EInputCommand.h"
+#include "EBindOrigin.h"
+
+class InputProxy;
+
+class InputHandler
+{
+public:
+    InputHandler(EventBroker* eventBroker, InputProxy* inputProxy)
+        : m_EventBroker(eventBroker)
+        , m_InputProxy(inputProxy)
+    { }
+
+    virtual void Update(double dt) { }
+    virtual bool BindOrigin(std::string origin, std::string command, float value) = 0;
+
+protected:
+    EventBroker* m_EventBroker;
+    InputProxy* m_InputProxy;
+};
+
+class InputProxy
+{
+public:
+    InputProxy(EventBroker* eventBroker)
+        : m_EventBroker(eventBroker)
+    {
+        EVENT_SUBSCRIBE_MEMBER(m_EBindOrigin, &InputProxy::OnBindOrigin);
+    }
+
+	void Update(double dt)
+    {
+        m_EventBroker->Process<InputProxy>();
+        m_EventBroker->Process<InputHandler>();
+        for (auto& handler : m_Handlers) {
+            handler->Update(dt);
+        }
+    }
+
+    void Process()
+    {
+        // Accumulate the input values of all unique commands published by input handlers
+        for (auto& pair : m_CommandQueue) {
+            Events::InputCommand e;
+            e.PlayerID = pair.first.first;
+            e.Command = pair.first.second;
+            e.Value = 0;
+            for (auto& value : pair.second) {
+                e.Value += value;
+            }
+	        e.Value = std::max(-1.f, std::min(e.Value, 1.f));
+            m_EventBroker->Publish(e);
+            LOG_DEBUG("Input: Published command %s=%f for player %i", e.Command.c_str(), e.Value, e.PlayerID);
+        }
+        m_CommandQueue.clear();
+    }
+
+    template <typename T>
+    void AddHandler()
+    {
+        m_Handlers.push_back(new T(m_EventBroker, this));
+    }
+
+    void Publish(const Events::InputCommand& e)
+    {
+        auto key = std::make_pair(e.PlayerID, e.Command);
+        m_CommandQueue[key].push_back(e.Value);
+    }
+
+protected:
+    EventBroker* m_EventBroker;
+    std::vector<InputHandler*> m_Handlers;
+    // Represents every unique command (has of PlayerID & Command) and all values reported for that command
+    std::map<std::pair<unsigned int, std::string>, std::vector<float>> m_CommandQueue;
+
+	EventRelay<InputProxy, Events::BindOrigin> m_EBindOrigin;
+	bool OnBindOrigin(const Events::BindOrigin& e)
+    {
+        bool originBound = false;
+        for (auto& handler : m_Handlers) {
+            bool result = handler->BindOrigin(e.Origin, e.Command, e.Value);
+            if (result) {
+                if (originBound) {
+                    LOG_WARNING("Multiple handlers responded to binding input origin \"%s\"!", e.Origin.c_str());
+                }
+                originBound = true;
+            }
+        }
+
+        if (!originBound) {
+            LOG_ERROR("No input handler responded to binding input origin \"%s\"!", e.Origin.c_str());
+        }
+
+        return originBound;
+    }
+	//std::unordered_map<std::string, std::unordered_map<int, float>> m_CommandMouseButtonValues; // command string -> mouse button value for command
+	//std::unordered_map<std::string, std::unordered_map<Gamepad::Axis, float, EnumClassHash>> m_CommandGamepadAxisValues; // command string -> gamepad axis value for command
+	//std::unordered_map<std::string, std::unordered_map<Gamepad::Button, float, EnumClassHash>> m_CommandGamepadButtonValues; // command string -> gamepad button value for command
+	//// Input binding tables
+	//std::unordered_multimap<int, std::tuple<std::string, float>> m_MouseButtonBindings; // GLFW_MOUSE_BUTTON... -> command string
+	//std::unordered_multimap<Gamepad::Axis, std::tuple<std::string, float>, EnumClassHash> m_GamepadAxisBindings; // Gamepad::Axis -> command string & value
+	//std::unordered_multimap<Gamepad::Button, std::tuple<std::string, float>, EnumClassHash> m_GamepadButtonBindings; // Gamepad::Button -> command string
+
+	//// Input events
+	//EventRelay<InputProxy, Events::MousePress> m_EMousePress;
+	//bool OnMousePress(const Events::MousePress &event);
+	//EventRelay<InputProxy, Events::MouseRelease> m_EMouseRelease;
+	//bool OnMouseRelease(const Events::MouseRelease &event);
+	//EventRelay<InputProxy, Events::GamepadAxis> m_EGamepadAxis;
+	//bool OnGamepadAxis(const Events::GamepadAxis &event);
+	//EventRelay<InputProxy, Events::GamepadButtonDown> m_EGamepadButtonDown;
+	//bool OnGamepadButtonDown(const Events::GamepadButtonDown &event);
+	//EventRelay<InputProxy, Events::GamepadButtonUp> m_EGamepadButtonUp;
+	//bool OnGamepadButtonUp(const Events::GamepadButtonUp &event);
+	//// Input binding events
+	//EventRelay<InputProxy, Events::BindMouseButton> m_EBindMouseButton;
+	//bool OnBindMouseButton(const Events::BindMouseButton &event);
+	//EventRelay<InputProxy, Events::BindGamepadAxis> m_EBindGamepadAxis;
+	//bool OnBindGamepadAxis(const Events::BindGamepadAxis &event);
+	//EventRelay<InputProxy, Events::BindGamepadButton> m_EBindGamepadButton;
+	//bool OnBindGamepadButton(const Events::BindGamepadButton &event);
+
+	//float GetCommandTotalValue(std::string command);
+	//void PublishCommand(int playerID, std::string command, float value);
+};
+
+#endif