Work in progress

main.cpp

@@ -4,6 +4,35 @@
 #include "vdp.h"
 #include <SDL.h>
 
+#define BTN_ANY		0
+#define BTN_UP		1
+#define BTN_DOWN	2
+#define BTN_LEFT	3
+#define BTN_RIGHT	4
+#define BTN_A		5
+#define BTN_B		6
+#define BTN_MENU	7
+
+bool anykey = false;
+unsigned char data_in;
+
+void input_data_in(const unsigned char& value) {
+	data_in = value;
+}
+
+unsigned char input_data_out() {
+	const Uint8* keys = SDL_GetKeyboardState(nullptr);
+	switch (data_in) {
+	case BTN_ANY: return anykey; break;
+	case BTN_UP: return keys[SDL_SCANCODE_UP]; break;
+	case BTN_DOWN: return keys[SDL_SCANCODE_DOWN]; break;
+	case BTN_LEFT: return keys[SDL_SCANCODE_LEFT]; break;
+	case BTN_RIGHT: return keys[SDL_SCANCODE_RIGHT]; break;
+	case BTN_A: return keys[SDL_SCANCODE_RCTRL]; break;
+	case BTN_B: return keys[SDL_SCANCODE_RSHIFT]; break;
+	case BTN_MENU: return keys[SDL_SCANCODE_RETURN]; break;
+	};
+}
 
 int main(int argc, char** argv) {
 
@@ -11,22 +40,26 @@ int main(int argc, char** argv) {
 	vdp_init();
 	vm_register_out_port(10, vdp_data_out);
 	vm_register_out_port(11, vdp_cmd_out);
+	vm_register_out_port(20, input_data_in);
+	vm_register_in_port(21, input_data_out);
 
 	static bool should_quit = false;
 	static SDL_Event sdlEvent;
 	SDL_Scancode just_pressed;
 
+	//Uint32 ticks = SDL_GetTicks();
 	while (!should_quit) {
 		just_pressed = SDL_SCANCODE_UNKNOWN;
 		while (SDL_PollEvent(&sdlEvent)) {
 			if (sdlEvent.type == SDL_QUIT) { should_quit = true; break; }
 			else if (sdlEvent.type == SDL_KEYDOWN) {
-				//anyKey = true;
+				anykey = true;
 				just_pressed = sdlEvent.key.keysym.scancode;
 				if (sdlEvent.key.keysym.scancode == SDL_SCANCODE_ESCAPE) { should_quit = true; }
 			}
 		}
 		vm_step();
+		//if (SDL_GetTicks() - ticks >= 15) { vdp_flip(); ticks = SDL_GetTicks(); }
 	}
 
 	vdp_quit();