From c7acaee6651a84ef9102b29350c37803c8f435a9 Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Tue, 5 Apr 2016 14:01:50 +0200
Subject: Console WIP.

---
 Makefile      |   4 +-
 src/console.c | 137 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/console.h |   6 +++
 src/main.c    |  22 ++++++++--
 4 files changed, 163 insertions(+), 6 deletions(-)
 create mode 100644 src/console.c
 create mode 100644 src/console.h

diff --git a/Makefile b/Makefile
index 5113b8f..a740690 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 CC = gcc
 CFLAGS += -g -Wall
 CPPFLAGS += -MMD
-LDFLAGS += -lm -lSDL2 -lSDL2_image
+LDFLAGS += -lm -lSDL2 -lSDL2_image -lreadline
 
 PP_BOLD := $(shell tput bold)
 PP_RESET := $(shell tput sgr0)
@@ -10,7 +10,7 @@ PP_LD := $(PP_BOLD)$(shell tput setf 2)LD$(PP_RESET)
 PP_RM := $(PP_BOLD)$(shell tput setf 4)RM$(PP_RESET)
 
 SRC := src/main.c src/physics.c src/renderer.c src/ui.c src/itc.c \
-       src/common.c
+       src/common.c src/console.c
 OBJ := $(SRC:src/%.c=obj/%.o)
 OUT := cem
 
diff --git a/src/console.c b/src/console.c
new file mode 100644
index 0000000..13e33f7
--- /dev/null
+++ b/src/console.c
@@ -0,0 +1,137 @@
+#include "console.h"
+#include <readline/readline.h>
+
+typedef struct con_var_s con_var_t;
+struct con_var_s {
+	char *name;
+	char *value;
+	con_var_t *next;
+};
+
+con_var_t *con_vars[256];
+
+size_t con_var_hash(char *text)
+{
+	char *p;
+	size_t rv;
+
+	for (rv = 0, p = text; *p; p++)
+		rv += 119 * ((*p) + 83);
+
+	return rv & 0xFF;
+}
+
+con_var_t *con_var_find(char *name, size_t *ret_hash)
+{
+	size_t hash;
+	con_var_t *var;
+
+	hash = con_var_hash(name);
+
+	if (ret_hash)
+		*ret_hash = hash;
+
+	for (var = con_vars[hash]; var; var = var->next)
+		if (!strcmp(var->name, name))
+			return var;
+
+	return NULL;
+}
+
+con_var_t *con_var_add(char *name)
+{
+	con_var_t *var;
+	size_t hash;
+
+	var = con_var_find(name, &hash);
+	if (var)
+		return var;
+
+	var = malloc(sizeof(con_var_t));
+	assert(var);
+
+	var->next = con_vars[hash];
+	con_vars[hash] = var;
+
+	var->name = strdup(name);
+	assert(var->name);
+
+	var->value = NULL;
+
+	return var;
+}
+
+void con_var_set(char *name, char *value)
+{
+	con_var_t *var;
+
+	var = con_var_add(name);
+
+	free(var->value);
+
+	if (value) {
+		var->value = strdup(value);
+		assert(var->value);
+	} else
+		var->value = NULL;
+}
+
+char *con_var_get(char *name)
+{
+	con_var_t *var;
+
+	var = con_var_find(name, NULL);
+	if (!var)
+		return NULL;
+
+	return var->value;
+}
+
+float con_var_get_float(char *name)
+{
+	char *str;
+
+	str = con_var_get(name);
+	if (!str)
+		return 0.0f;
+
+	return atof(str);
+}
+
+size_t con_var_get_size(char *name)
+{
+	char *str;
+
+	str = con_var_get(name);
+	if (!str)
+		return 0;
+
+	return strtoul(name, NULL, 10);
+}
+
+int con_init(void)
+{
+	con_var_set("kurwa", "chuj");
+	return 0;
+}
+
+
+void con_quit(void)
+{
+}
+
+
+
+int con_thread_f(phy_sim *sim)
+{
+	printf("%f\n", con_var_get_float("kurwa"));
+
+	while (1) {
+		char *line;
+
+		line = readline("(cem) ");
+		printf("line=%s\n", line);
+	}
+	
+	return 0;
+}
diff --git a/src/console.h b/src/console.h
new file mode 100644
index 0000000..2204ce9
--- /dev/null
+++ b/src/console.h
@@ -0,0 +1,6 @@
+#include "common.h"
+#include "physics.h"
+
+int con_init(void);
+void con_quit(void);
+int con_thread_f(phy_sim *sim);
diff --git a/src/main.c b/src/main.c
index 1bcc236..f30238c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -5,15 +5,14 @@
 #include "physics.h"
 #include "renderer.h"
 #include "ui.h"
-
-void itc_test(void);
+#include "console.h"
 
 int main(void)
 {
 	int rv = 0;
 	r_window *first_window;
 	phy_sim sim;
-	SDL_Thread *sim_thread;
+	SDL_Thread *sim_thread, *con_thread;
 
 	if (r_init()) {
 		con_printf("fatal error: renderer initialization failed\n");
@@ -54,6 +53,21 @@ int main(void)
 		goto quit;
 	}
 
+	if (con_init()) {
+		con_printf("fatal error: console initialization failed\n");
+		rv = 1;
+		goto quit;
+	}
+
+	con_thread = SDL_CreateThread((SDL_ThreadFunction)con_thread_f,
+	                               "con_thread", &sim);
+	if (!con_thread) {
+		con_printf("fatal error: SDL_CreateThread failed: %s\n",
+		           SDL_GetError());
+		rv = 1;
+		goto quit;
+	}
+
 	while (1) {
 		SDL_Event event;
 
@@ -72,7 +86,7 @@ quit:
 
 	itc_chan_push(&sim.ctl, PHY_CMD_QUIT, NULL);
 	SDL_WaitThread(sim_thread, NULL);
-  	phy_sim_destroy(&sim);
+	phy_sim_destroy(&sim);
 
 	ui_quit();
 	r_quit();
-- 
cgit