From 97af36cc8cc5697527476c7a6f2e2a7bf39b0bbc Mon Sep 17 00:00:00 2001
From: KikooDX <kikoodx@paranoici.org>
Date: Mon, 28 Feb 2022 16:43:45 +0100
Subject: [PATCH] sdl input

---
 inc/lzy.h  | 63 ++++++++++++++++++++++++++++++++++++------------------
 src/main.c |  4 ++++
 2 files changed, 46 insertions(+), 21 deletions(-)

diff --git a/inc/lzy.h b/inc/lzy.h
index cd5f475..f2a522b 100644
--- a/inc/lzy.h
+++ b/inc/lzy.h
@@ -15,7 +15,7 @@ void LZY_DrawSetColor(uint8_t r, uint8_t g, uint8_t b);
 void LZY_DrawSetColorNone(void);
 int LZY_DrawClear(void);
 void LZY_CycleEvents(void);
-int LZY_KeyDown(unsigned int scancode);
+int LZY_KeyDown(unsigned int key);
 int LZY_ShouldQuit(void);
 void LZY_Log(const char *msg);
 const char *LZY_GetError(void);
@@ -23,20 +23,19 @@ const char *LZY_GetError(void);
 #ifdef FXCG50
 #include <gint/keycodes.h>
 enum LZY_ScanCode {
-	LZY_SC_LEFT = KEY_LEFT,
-	LZY_SC_RIGHT = KEY_RIGHT,
-	LZY_SC_UP = KEY_UP,
-	LZY_SC_DOWN = KEY_DOWN,
-	LZY_SC_QUIT = KEY_EXIT,
+	LZYK_LEFT = KEY_LEFT,
+	LZYK_RIGHT = KEY_RIGHT,
+	LZYK_UP = KEY_UP,
+	LZYK_DOWN = KEY_DOWN,
 };
 #else /* end FXCG50, begin SDL2 */
 #include <SDL.h>
 enum LZY_ScanCode {
-	LZY_SC_LEFT = SDL_SCANCODE_LEFT,
-	LZY_SC_RIGHT = SDL_SCANCODE_RIGHT,
-	LZY_SC_UP = SDL_SCANCODE_UP,
-	LZY_SC_DOWN = SDL_SCANCODE_DOWN,
-	LZY_SC_QUIT = SDL_SCANCODE_ESCAPE,
+	LZYK_LEFT,
+	LZYK_RIGHT,
+	LZYK_UP,
+	LZYK_DOWN,
+	LZYK_COUNT,
 };
 #endif /* SDL2 */
 #ifdef __cplusplus
@@ -95,11 +94,11 @@ int LZY_DrawClear(void) {
 
 void LZY_CycleEvents(void) {
 	clearevents();
-	should_quit = should_quit || keydown(LZY_SC_QUIT);
+	should_quit = should_quit || keydown(KEY_EXIT);
 }
 
-int LZY_KeyDown(unsigned int scancode) {
-	return keydown(scancode);
+int LZY_KeyDown(unsigned int key) {
+	return keydown(key);
 }
 
 int LZY_ShouldQuit(void) {
@@ -122,6 +121,7 @@ static const char *error = NULL;
 static SDL_Window *window = NULL;
 static SDL_Renderer *renderer = NULL;
 static int should_quit = 0;
+static int input[LZYK_COUNT] = {0};
 
 int LZY_Init(const char *title) {
 	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
@@ -190,6 +190,12 @@ int LZY_DrawClear(void) {
 }
 
 void LZY_CycleEvents(void) {
+	static const SDL_Scancode sc[LZYK_COUNT] = {
+	    SDL_SCANCODE_LEFT,
+	    SDL_SCANCODE_RIGHT,
+	    SDL_SCANCODE_UP,
+	    SDL_SCANCODE_DOWN,
+	};
 	SDL_Event e;
 
 	while (SDL_PollEvent(&e) != 0) {
@@ -197,19 +203,34 @@ void LZY_CycleEvents(void) {
 		case SDL_QUIT:
 			should_quit = 1;
 			break;
-		case SDL_KEYDOWN:
-			break;
-		case SDL_KEYUP:
-			break;
+		case SDL_KEYDOWN: {
+			int i = LZYK_COUNT;
+			while (i-- > 0) {
+				if (sc[i] == e.key.keysym.scancode) {
+					input[i] = 1;
+					break;
+				}
+			}
+		} break;
+		case SDL_KEYUP: {
+			int i = LZYK_COUNT;
+			while (i-- > 0) {
+				if (sc[i] == e.key.keysym.scancode) {
+					input[i] = 0;
+					break;
+				}
+			}
+		} break;
 		default:
 			break;
 		}
 	}
 }
 
-int LZY_KeyDown(unsigned int scancode) {
-	LZY_Log("LZY_KeyDown not implemented");
-	return 0;
+int LZY_KeyDown(unsigned int key) {
+	if (key >= LZYK_COUNT)
+		return 0;
+	return input[key];
 }
 
 int LZY_ShouldQuit(void) {
diff --git a/src/main.c b/src/main.c
index 7b200a8..23b7cc5 100644
--- a/src/main.c
+++ b/src/main.c
@@ -17,6 +17,10 @@ int main(void) {
 
 	do {
 		LZY_CycleEvents();
+		if (LZY_KeyDown(LZYK_LEFT))
+			LZY_Log("pressing left");
+		if (LZY_KeyDown(LZYK_RIGHT))
+			LZY_Log("pressing right");
 	} while (!LZY_ShouldQuit());
 
 	LZY_Log("cya");