diff --git a/CMakeLists.txt b/CMakeLists.txt
index ced858d..7838667 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,6 +11,8 @@ include_directories(inc)
 
 set(SOURCES
 	src/main.c
+	src/draw.c
+	src/player.c
 )
 
 set(ASSETS
@@ -27,5 +29,5 @@ target_link_options(proj PRIVATE -Wl,-Map=map)
 
 generate_g3a(TARGET proj
 	OUTPUT "jtmm2.g3a"
-	NAME "JTMM2"
+	NAME ""
 	ICONS res/icon/uns.png res/icon/sel.png)
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..9845e46
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+all: format
+	fxsdk build-cg
+
+format:
+	clang-format -style=file -i src/**.c inc/**.h
+
+clean:
+	rm -Rf build-cg/
+	rm -f *.g3a
+
+.PHONY: format clean
diff --git a/inc/conf.h b/inc/conf.h
new file mode 100644
index 0000000..230cd9b
--- /dev/null
+++ b/inc/conf.h
@@ -0,0 +1,3 @@
+#pragma once
+
+#define TILE_SIZE 16
diff --git a/inc/draw.h b/inc/draw.h
new file mode 100644
index 0000000..6bb8187
--- /dev/null
+++ b/inc/draw.h
@@ -0,0 +1,4 @@
+#pragma once
+#include <gint/display.h>
+
+void draw_rectangle(int c, int x, int y, int w, int h);
diff --git a/inc/player.h b/inc/player.h
new file mode 100644
index 0000000..b2c8e06
--- /dev/null
+++ b/inc/player.h
@@ -0,0 +1,11 @@
+#pragma once
+#include "vec.h"
+
+typedef struct Player {
+	Vec pos;
+	VecF spd, rem;
+} Player;
+
+void player_init(Player *);
+void player_update(Player *);
+void player_draw(Player *);
diff --git a/inc/vec.h b/inc/vec.h
new file mode 100644
index 0000000..3105ac2
--- /dev/null
+++ b/inc/vec.h
@@ -0,0 +1,9 @@
+#pragma once
+
+typedef struct Vec {
+	int x, y;
+} Vec;
+
+typedef struct VecF {
+	float x, y;
+} VecF;
diff --git a/src/draw.c b/src/draw.c
new file mode 100644
index 0000000..2537e7e
--- /dev/null
+++ b/src/draw.c
@@ -0,0 +1,10 @@
+#include "draw.h"
+#include <gint/display.h>
+
+void
+draw_rectangle(int c, int x, int y, int w, int h)
+{
+	const int x2 = x + w - 1;
+	const int y2 = y + h - 1;
+	drect(x, y, x2, y2, c);
+}
diff --git a/src/main.c b/src/main.c
index 95485db..0055fcc 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,5 +1,51 @@
+#include "player.h"
+#include <gint/display.h>
+#include <gint/keyboard.h>
+
+static Player player;
+
+static void init(void);
+static void deinit(void);
+static void draw(void);
+static void update(void);
+
 int
 main(void)
 {
+	init();
+
+	draw();
+	do {
+		update();
+		draw();
+	} while (!keydown(KEY_EXIT));
+
+	deinit();
 	return 0;
 }
+
+static void
+init(void)
+{
+	player_init(&player);
+}
+
+static void
+deinit(void)
+{
+}
+
+static void
+update(void)
+{
+	clearevents();
+	player_update(&player);
+}
+
+static void
+draw(void)
+{
+	dclear(C_BLACK);
+	player_draw(&player);
+	dupdate();
+}
diff --git a/src/player.c b/src/player.c
new file mode 100644
index 0000000..c6c381e
--- /dev/null
+++ b/src/player.c
@@ -0,0 +1,33 @@
+#include "player.h"
+#include "draw.h"
+
+static void player_reset_speed(Player *);
+
+void
+player_init(Player *p)
+{
+	p->pos.x = 0;
+	p->pos.y = 0;
+	player_reset_speed(p);
+}
+
+void
+player_update(Player *p)
+{
+	p->pos.x++;
+}
+
+void
+player_draw(Player *p)
+{
+	draw_rectangle(C_WHITE, p->pos.x, p->pos.y, 16, 16);
+}
+
+static void
+player_reset_speed(Player *p)
+{
+	p->spd.x = 0.0f;
+	p->spd.y = 0.0f;
+	p->rem.x = 0.0f;
+	p->rem.y = 0.0f;
+}