log message output now also shown in console

README.md

@@ -155,8 +155,7 @@
 
 - ## TODO
 
-	- Console log output
-	- Console coloured output
+	- Console error/warning output
 	- Console commands
 	- Console fix bug when enabled in editor mode
 	- Console command history
@@ -166,6 +165,8 @@
 	- Move Gui_State and Editor_State into game_state and modify usage as needed
 	- Remove model and replace all usages with static mesh
 	- Get editor camera speed and other settings from config file
+	- Recompile Soloud on windows to use static sdl2 backend
+	- Figure out a way to reduce of remove snprintf calls from render code
 	- Re-Implement player logic
 	- Re-Implement saving/loading scene to/from files
 	- Bring back functionality and complete overhaul 
@@ -408,4 +409,5 @@
 	* Re-implemented showing all the entities in the editor
 	* Player init, update, visual representation and movement
 	* Switching between editor and game mode/cameras
-	* In-game basis for scrollable console/log-viewer
+	* In-game basis for scrollable console/log-viewer
+	* Console log output

src/common/log.c

@@ -29,12 +29,17 @@
 
 #endif
 
-static FILE* log_file = NULL;
+static void log_message_callback_stub(const char* message, va_list args);
+
+static FILE*          log_file         = NULL;
+static Log_Message_CB message_callback = log_message_callback_stub;
+
+#define MAX_LOG_FILE_PATH_LEN 512
 
 void log_init(const char* log_file_name, const char* user_directory)
 {
-	char log_file_path[512] = {'\0'};
-    snprintf(log_file_path, 512, "%s/%s", user_directory, log_file_name);
+	char log_file_path[MAX_LOG_FILE_PATH_LEN] = {'\0'};
+    snprintf(log_file_path, MAX_LOG_FILE_PATH_LEN, "%s/%s", user_directory, log_file_name);
 	log_file = fopen(log_file_path, "w");
 	if(!log_file)
 	{
@@ -63,7 +68,6 @@ void log_cleanup(void)
 	}
 }
 
-
 void log_to_stdout(const char* message, ...)
 {
 	printf("%sMSG : ", COL_CYAN);
@@ -95,6 +99,7 @@ void log_message(const char* message, ...)
 	va_copy(file_list, console_list);
 	vfprintf(log_file, message, file_list);
 	vprintf(message, console_list);
+	message_callback(message, console_list);
 	va_end(console_list);
 	va_end(file_list);
 	printf("\n%s", COL_RESET);
@@ -143,3 +148,14 @@ void  log_file_handle_set(FILE* file)
 {
     log_file = file;
 }
+
+void  log_message_callback_set(Log_Message_CB callback)
+{
+	if(callback)
+		message_callback = callback;
+}
+
+void log_message_callback_stub(const char* message, va_list args)
+{
+	// This is just a stub in-case no callback has been set
+}

src/common/log.h

@@ -3,6 +3,8 @@
 
 #include <stdio.h>
 
+typedef void (*Log_Message_CB)(const char* message, va_list args);
+
 void  log_init(const char* log_file_name, const char* user_directory);
 void  log_cleanup(void);
 void  log_message(const char* message, ...);
@@ -12,5 +14,6 @@ void  log_to_stdout(const char* message, ...); /* Only use when logging is not i
 void  log_raw(const char* str, ...);
 FILE* log_file_handle_get(void);
 void  log_file_handle_set(FILE* file);
+void  log_message_callback_set(Log_Message_CB callback);
 
 #endif

src/libsymmetry/console.c

@@ -15,13 +15,17 @@ static int console_filter(const struct nk_text_edit *box, nk_rune unicode);
 void console_init(struct Console* console)
 {
 	assert(console);
-	
-	console->visible            = false;
-	console->text_region_height = 22.f;
-	console->line_height        = 20.f;
 
 	color_normal = nk_rgb(255, 255, 255);
-	memset(console->console_command_text, '\0', MAX_CONSOLE_COMMAND_LEN);
+	
+	console->visible               = false;
+	console->text_region_height    = 22.f;
+	console->line_height           = 20.f;
+	console->current_message_index = -1;
+
+	memset(console->console_command_text, '\0', MAX_CONSOLE_MESSAGE_LEN);
+	for(int i = 0; i < MAX_CONSOLE_MESSAGES; i++)
+		memset(console->console_messages[i], '\0', MAX_CONSOLE_MESSAGE_LEN);
 }
 
 void console_toggle(struct Console* console)
@@ -45,10 +49,10 @@ void console_update(struct Console* console, struct Gui_State* gui_state, float
 		nk_layout_row_dynamic(context, nk_window_get_height(context) - console->text_region_height * 2, 1);
 		if(nk_group_begin(context, "Log", NK_WINDOW_SCROLL_AUTO_HIDE))
 		{
-			for(int i = 0; i < MAX_CONSOLE_LINES / 2; i++)
+			for(int i = 0; i <= console->current_message_index; i++)
 			{
 				nk_layout_row_dynamic(context, console->line_height, 1);
-				nk_labelf_colored(context, NK_TEXT_ALIGN_LEFT | NK_TEXT_ALIGN_MIDDLE, color_normal, "This is a test log line. Do not panic!");
+				nk_labelf_colored(context, NK_TEXT_ALIGN_LEFT | NK_TEXT_ALIGN_MIDDLE, color_normal, console->console_messages[i]);
 			}
 			nk_group_end(context);
 		}
@@ -56,11 +60,11 @@ void console_update(struct Console* console, struct Gui_State* gui_state, float
 		nk_layout_row_dynamic(context, console->text_region_height, 1);
 		int edit_flags = NK_EDIT_GOTO_END_ON_ACTIVATE | NK_EDIT_FIELD | NK_EDIT_SIG_ENTER;
 		nk_edit_focus(context, edit_flags);
-		int edit_state = nk_edit_string_zero_terminated(context, edit_flags, console->console_command_text, MAX_CONSOLE_COMMAND_LEN, console_filter);
+		int edit_state = nk_edit_string_zero_terminated(context, edit_flags, console->console_command_text, MAX_CONSOLE_MESSAGE_LEN, console_filter);
 		if(edit_state & NK_EDIT_COMMITED)
 		{
 			log_message("New message entered : %s", console->console_command_text);
-			memset(console->console_command_text, '\0', MAX_CONSOLE_COMMAND_LEN);
+			memset(console->console_command_text, '\0', MAX_CONSOLE_MESSAGE_LEN);
 		}
 	}
 	nk_end(context);
@@ -78,4 +82,11 @@ int console_filter(const struct nk_text_edit *box, nk_rune unicode)
 		return nk_false;
 	else 
 		return nk_true;
+}
+
+void console_on_log_message(struct Console* console, const char* message, va_list args)
+{
+	if(++console->current_message_index >= MAX_CONSOLE_MESSAGES)
+		console->current_message_index = 0;
+	vsnprintf(console->console_messages[console->current_message_index], MAX_CONSOLE_MESSAGE_LEN, message, args);
 }

src/libsymmetry/console.h

@@ -2,23 +2,26 @@
 #define CONSOLE_H
 
 #include <stdbool.h>
+#include <stdarg.h>
 
-#define MAX_CONSOLE_COMMAND_LEN 128
-#define MAX_CONSOLE_LINES 1024
-#define MAX_CONSOLE_LINE_LEN 256
+#define MAX_CONSOLE_MESSAGE_LEN 256
+#define MAX_CONSOLE_MESSAGES 1024
 
 struct Console
 {
 	bool  visible;
 	float text_region_height;
 	float line_height;
-	char  console_command_text[MAX_CONSOLE_COMMAND_LEN];
+	int   current_message_index;
+	char  console_command_text[MAX_CONSOLE_MESSAGE_LEN];
+	char  console_messages[MAX_CONSOLE_MESSAGES][MAX_CONSOLE_MESSAGE_LEN];
 };
 
 void console_init(struct Console* console);
 void console_toggle(struct Console* console);
 void console_update(struct Console* console, struct Gui_State* gui_state, float dt);
 void console_destroy(struct Console* console);
+void console_on_log_message(struct Console* console, const char* message, va_list args);
 
 
 #endif

src/libsymmetry/game.c

@@ -48,6 +48,7 @@ static void game_render(void);
 static void game_debug(float dt);
 static void game_debug_gui(float dt);
 static void game_scene_setup(void);
+static void game_on_log_message(const char* message, va_list args);
 static void on_box_move(Rigidbody body);
 static void on_collision_test(struct Entity* this_ent, struct Entity* other_ent, Rigidbody body, Rigidbody body2);
 
@@ -80,6 +81,8 @@ bool game_init(struct Window* window, struct Platform_Api* platform_api)
 		game_state->console = calloc(1, sizeof(*game_state->console));
 
 		log_file_handle_set(platform->log.file_handle_get());
+		log_message_callback_set(game_on_log_message);
+
 		if(!gl_load_extentions())
 		{
 			log_error("game:init", "Failed to load GL extentions");
@@ -1789,4 +1792,9 @@ void on_collision_test(struct Entity* this_ent, struct Entity* other_ent, Rigidb
 		//platform->physics.body_force_add(body, 0.f, -100.f, 0.f);
 	}
 	//platform->physics.body_force_add(body, 0.f, 500.f, 0.f);
+}
+
+void game_on_log_message(const char* message, va_list args)
+{
+	console_on_log_message(game_state->console, message, args);
 }