get input states

4 files changed, 129 insertions, 1 deletions

diff --git a/src/FLD.hpp b/src/FLD.hpp
index 05677fb..958a724 100644
--- a/src/FLD.hpp
+++ b/src/FLD.hpp
@@ -1,8 +1,10 @@
 #pragma once
 #include <SDL2/SDL_render.h>
+#include <SDL2/SDL_scancode.h>
+#include <SDL2/SDL_gamecontroller.h>
 #include <string>
 #include <map>
-#include <optional>
+#include <array>
 #include <climits>
 #include "soloud.h"
 
@@ -13,6 +15,15 @@ public:
 	using Error = int;
 	using Uint = unsigned int;
 	using MainLoop = int (*)(FLD& fld, void *udata);
+	enum class InputState {
+		Up,
+		Down,
+		Release,
+		Press
+	};
+	using InputStateArray = std::array<InputState, SDL_NUM_SCANCODES>;
+	using MouseStateArray = std::array<InputState, 256>;
+	using JoyStateArray = std::array<InputState, SDL_CONTROLLER_BUTTON_MAX>;
 	struct Config {
 		int width = 640;
 		int height = 480;
@@ -85,6 +96,9 @@ public:
 	READONLY(SDL_Texture *, target, nullptr);
 	READONLY(unsigned long, tick, 0);
 	READONLY(Color, drawColor, Color({0, 0, 0, 1}));
+	READONLY(InputStateArray, keystates, {});
+	READONLY(MouseStateArray, mousestates, {});
+	READONLY(JoyStateArray, joystates, {});
 public:
 	FLD(const Config& config);
 	FLD(const Config&& config);
@@ -103,6 +117,24 @@ public:
 	Error drawRectangle(const Rectangle& rect, Uint flags=NONE) const;
 
 	[[nodiscard]] Image& image(const std::string& path);
+
+	[[nodiscard]] InputState keyGet(SDL_Scancode sc) const;
+	[[nodiscard]] bool keyDown(SDL_Scancode sc) const;
+	[[nodiscard]] bool keyUp(SDL_Scancode sc) const;
+	[[nodiscard]] bool keyPressed(SDL_Scancode sc) const;
+	[[nodiscard]] bool keyReleased(SDL_Scancode sc) const;
+
+	[[nodiscard]] InputState mouseGet(SDL_Scancode sc) const;
+	[[nodiscard]] bool mouseDown(SDL_Scancode sc) const;
+	[[nodiscard]] bool mouseUp(SDL_Scancode sc) const;
+	[[nodiscard]] bool mousePressed(SDL_Scancode sc) const;
+	[[nodiscard]] bool mouseReleased(SDL_Scancode sc) const;
+
+	[[nodiscard]] InputState joyGet(SDL_Scancode sc) const;
+	[[nodiscard]] bool joyDown(SDL_Scancode sc) const;
+	[[nodiscard]] bool joyUp(SDL_Scancode sc) const;
+	[[nodiscard]] bool joyPressed(SDL_Scancode sc) const;
+	[[nodiscard]] bool joyReleased(SDL_Scancode sc) const;
 private:
 	bool shouldQuit = false;
 	struct {
diff --git a/src/joyGet.cpp b/src/joyGet.cpp
new file mode 100644
index 0000000..f48c783
--- /dev/null
+++ b/src/joyGet.cpp
@@ -0,0 +1,32 @@
+#include "FLD.hpp"
+
+FLD::InputState
+FLD::joyGet(SDL_Scancode sc) const
+{
+	return joystates[sc];
+}
+
+bool
+FLD::joyDown(SDL_Scancode sc) const
+{
+	const auto state = joyGet(sc);
+	return (state == InputState::Down || state == InputState::Press);
+}
+
+bool
+FLD::joyUp(SDL_Scancode sc) const
+{
+	return !joyDown(sc);
+}
+
+bool
+FLD::joyPressed(SDL_Scancode sc) const
+{
+	return (joyGet(sc) == InputState::Press);
+}
+
+bool
+FLD::joyReleased(SDL_Scancode sc) const
+{
+	return (joyGet(sc) == InputState::Release);
+}
diff --git a/src/keyGet.cpp b/src/keyGet.cpp
new file mode 100644
index 0000000..005aa51
--- /dev/null
+++ b/src/keyGet.cpp
@@ -0,0 +1,32 @@
+#include "FLD.hpp"
+
+FLD::InputState
+FLD::keyGet(SDL_Scancode sc) const
+{
+	return keystates[sc];
+}
+
+bool
+FLD::keyDown(SDL_Scancode sc) const
+{
+	const auto state = keyGet(sc);
+	return (state == InputState::Down || state == InputState::Press);
+}
+
+bool
+FLD::keyUp(SDL_Scancode sc) const
+{
+	return !keyDown(sc);
+}
+
+bool
+FLD::keyPressed(SDL_Scancode sc) const
+{
+	return (keyGet(sc) == InputState::Press);
+}
+
+bool
+FLD::keyReleased(SDL_Scancode sc) const
+{
+	return (keyGet(sc) == InputState::Release);
+}
diff --git a/src/mouseGet.cpp b/src/mouseGet.cpp
new file mode 100644
index 0000000..503757e
--- /dev/null
+++ b/src/mouseGet.cpp
@@ -0,0 +1,32 @@
+#include "FLD.hpp"
+
+FLD::InputState
+FLD::mouseGet(SDL_Scancode sc) const
+{
+	return mousestates[sc];
+}
+
+bool
+FLD::mouseDown(SDL_Scancode sc) const
+{
+	const auto state = mouseGet(sc);
+	return (state == InputState::Down || state == InputState::Press);
+}
+
+bool
+FLD::mouseUp(SDL_Scancode sc) const
+{
+	return !mouseDown(sc);
+}
+
+bool
+FLD::mousePressed(SDL_Scancode sc) const
+{
+	return (mouseGet(sc) == InputState::Press);
+}
+
+bool
+FLD::mouseReleased(SDL_Scancode sc) const
+{
+	return (mouseGet(sc) == InputState::Release);
+}