diff --git a/include/camera.h b/include/camera.h
index 0384b76..a6c2c25 100644
--- a/include/camera.h
+++ b/include/camera.h
@@ -12,9 +12,8 @@ typedef struct Camera
 } Camera;
 
 void camera_step(Camera *camera);
-#ifdef DEBUG
+
 /* draw a dot corresponding to camera position */
 void camera_draw(Camera *camera);
-#endif
 
 #endif /* _DEF_CAMERA */
diff --git a/include/input.h b/include/input.h
new file mode 100644
index 0000000..c0abe34
--- /dev/null
+++ b/include/input.h
@@ -0,0 +1,38 @@
+#ifndef _DEF_INPUT
+#define _DEF_INPUT
+
+#include <gint/defs/types.h>
+
+#define KEYS_COUNT 4
+
+enum {
+	K_LEFT,
+	K_RIGHT,
+	K_UP,
+	K_DOWN
+};
+
+enum {
+	S_PRESSED,
+	S_DOWN,
+	S_RELEASED,
+	S_UP
+};
+
+typedef struct Input
+{
+	uint8_t keys[KEYS_COUNT];
+	uint8_t states[KEYS_COUNT];
+} Input;
+
+/* will check for new key inputs and update states[] */
+void input_step(Input *input);
+
+/* display all key states */
+void input_draw(Input *input);
+
+int input_is_pressed(Input input, uint8_t key);
+int input_is_down(Input input, uint8_t key);
+int input_is_released(Input input, uint8_t key);
+
+#endif /* _DEF_INPUT */
diff --git a/include/level.h b/include/level.h
index 33736ea..c8986be 100644
--- a/include/level.h
+++ b/include/level.h
@@ -1,13 +1,15 @@
 #ifndef _DEF_LEVEL
 #define _DEF_LEVEL
 
+#include <gint/defs/types.h>
+
 #include "camera.h"
 
 typedef struct Level
 {
 	int width;  /* in tiles */
 	int height; /* in tiles */
-	const unsigned char **layers; /* points toward the level content */
+	const uint8_t **layers; /* points toward the level content */
 } Level;
 
 void level_step(Level *level);
diff --git a/include/main.h b/include/main.h
index b682037..e2080de 100644
--- a/include/main.h
+++ b/include/main.h
@@ -1,11 +1,8 @@
 #include "player.h"
 #include "level.h"
-
-#ifndef _DEF_MAIN
-#define _DEF_MAIN
+#include "camera.h"
+#include "input.h"
 
 int play_level(int level_id);
-void step_event(Player *player, Level *level, Camera *camera);
-void draw_event(Player *player, Level *level, Camera *camera);
-
-#endif
+void step_event(Player *player, Level *level, Camera *camera, Input *input);
+void draw_event(Player *player, Level *level, Camera *camera, Input *input);
diff --git a/levels/generate_c.lua b/levels/generate_c.lua
index fa5d1ad..d5961cb 100755
--- a/levels/generate_c.lua
+++ b/levels/generate_c.lua
@@ -35,7 +35,7 @@ local function create_structure_c(id)
   if content then
     -- layers
     for i, layer in ipairs(content.layers) do
-      io.write("const unsigned char tiles_", id, "_", i, "[] = {\n\t")
+      io.write("const uint8_t tiles_", id, "_", i, "[] = {\n\t")
       for i, v in ipairs(layer) do
         io.write(v, ", ")
         if i % 14 == 0 and i ~= #layer then
@@ -45,7 +45,7 @@ local function create_structure_c(id)
       io.write("\n};\n");
     end
     -- array
-    io.write("const unsigned char *layers_", id, "[] = {")
+    io.write("const uint8_t *layers_", id, "[] = {")
     for i = 1, #content.layers, 1 do
       io.write("tiles_", id, "_", i, ", ")
     end
diff --git a/src/camera.c b/src/camera.c
index 3efa05e..ce5f0f6 100644
--- a/src/camera.c
+++ b/src/camera.c
@@ -9,7 +9,6 @@ void camera_step(Camera *camera)
 	vec_lerp(&camera->pos, *camera->target, camera->speed);
 }
 
-#ifdef DEBUG
 void camera_draw(Camera *camera)
 {
 	#ifdef FX9860G
@@ -19,4 +18,3 @@ void camera_draw(Camera *camera)
 	dpixel((int)camera->pos.x, (int)camera->pos.y, C_RED);
 	#endif /* FXCG50 */
 }
-#endif
diff --git a/src/input.c b/src/input.c
new file mode 100644
index 0000000..4038bc1
--- /dev/null
+++ b/src/input.c
@@ -0,0 +1,48 @@
+#include <gint/keyboard.h>
+#include <gint/display.h>
+
+#include "input.h"
+
+void input_step(Input *input)
+{
+	/* read all inputs */
+	clearevents();
+	/* for each key, update it's state */
+	for (int i = 0; i < KEYS_COUNT; ++i)
+	{
+		uint8_t *state = &input->states[i];
+		uint8_t *key = &input->keys[i];
+		int pressed = keydown(*key);
+		if (pressed)
+		{
+			*state = (input_is_down(*input, *key) ? S_DOWN : S_PRESSED);
+		}
+		else
+		{
+			*state = (!input_is_down(*input, *key) ? S_UP : S_RELEASED);
+		}
+	}
+}
+
+void input_draw(Input *input)
+{
+	for (int i = 0; i < KEYS_COUNT; ++i)
+	{
+		dprint(0, i * 10, C_BLACK, "%d", input->states[i]);
+	}
+}
+
+int input_is_pressed(Input input, uint8_t key)
+{
+	return input.states[key] == S_PRESSED;
+}
+
+int input_is_down(Input input, uint8_t key)
+{
+	return input.states[key] <= S_DOWN;
+}
+
+int input_is_released(Input input, uint8_t key)
+{
+	return input.states[key] == S_RELEASED;
+}
diff --git a/src/main.c b/src/main.c
index 655a3f3..b8b1a43 100644
--- a/src/main.c
+++ b/src/main.c
@@ -9,6 +9,7 @@
 #include "player.h"
 #include "level.h"
 #include "camera.h"
+#include "input.h"
 
 int main(void)
 {
@@ -47,29 +48,39 @@ int play_level(int level_id)
 		.speed = 0.05
 		#endif /* FXCG50 */
 	};
+
+	/* create input manager */
+	Input input;
+	input.keys[K_LEFT] = KEY_LEFT;
+	input.keys[K_RIGHT] = KEY_RIGHT;
+	input.keys[K_UP] = KEY_UP;
+	input.keys[K_DOWN] = KEY_DOWN;
+
 	//vec_cpy(&camera.pos, player.pos);
 	while ((int)camera.pos.x != (int)player.pos.x)
 	{
-		step_event(&player, &level, &camera);
-		draw_event(&player, &level, &camera);
+		step_event(&player, &level, &camera, &input);
+		draw_event(&player, &level, &camera, &input);
 	}
 	return 0;
 }
 
-void step_event(Player *player, Level *level, Camera *camera)
+void step_event(Player *player, Level *level, Camera *camera, Input *input)
 {
+	input_step(input);
 	player_step(player);
 	level_step(level);
 	camera_step(camera);
 }
 
-void draw_event(Player *player, Level *level, Camera *camera)
+void draw_event(Player *player, Level *level, Camera *camera, Input *input)
 {
 	dclear(C_WHITE);
 	level_draw(level, camera);
 	player_draw(player, camera);
 	#ifdef DEBUG
 	camera_draw(camera);
+	input_draw(input);
 	#endif
 	dupdate();
 }