diff --git a/source/fumoengine/fumocommon.c b/source/fumoengine/fumocommon.c
index fd256b3..a340fc3 100644
--- a/source/fumoengine/fumocommon.c
+++ b/source/fumoengine/fumocommon.c
@@ -2,12 +2,12 @@
 #include <time.h>
 
 
-size_t MinSize(size_t a, size_t b)
+usize min_usize(usize a, usize b)
 {
     return a < b ? a : b;
 }
 
-Time TimeNow()
+nsec TimeNow()
 {
     struct timespec ts;
     timespec_get(&ts, TIME_UTC);
@@ -21,4 +21,18 @@ double TimeNowD()
     timespec_get(&ts, TIME_UTC);
 
     return ts.tv_sec + (double)ts.tv_nsec / 1000000000.0;
+}
+
+u32 Hash(void *item, usize size)
+{
+    u8 *data = (u8 *)item;
+
+    u32 h = 98317;
+    for (usize i = 0; i < size; i++) {
+        h ^= data[i];
+        h *= 0x5bd1e995;
+        h ^= h >> 15;
+    }
+
+    return h;
 }
\ No newline at end of file
diff --git a/source/fumoengine/fumocommon.h b/source/fumoengine/fumocommon.h
index 1c077c0..dc9d7ba 100644
--- a/source/fumoengine/fumocommon.h
+++ b/source/fumoengine/fumocommon.h
@@ -36,11 +36,12 @@ typedef int64_t         i64;
 typedef int_fast64_t    i64f;
 
 
-typedef u64 Time;
+typedef u64 nsec;
 
 
-size_t MinSize(size_t a, size_t b);
+size_t min_usize(usize a, usize b);
 
-Time TimeNow();
+nsec TimeNow();
+double TimeNowD();
 
-double TimeNowD();
\ No newline at end of file
+u32 Hash(void *item, usize size);
\ No newline at end of file
diff --git a/source/fumoengine/fumoengine.c b/source/fumoengine/fumoengine.c
index a1d0db7..5e6cb08 100644
--- a/source/fumoengine/fumoengine.c
+++ b/source/fumoengine/fumoengine.c
@@ -8,6 +8,13 @@ void Panic(char *message)
     exit(1);
 }
 
+void InvokeUpdate(void_func func, void *arg)
+{
+    struct { nsec frametime; } *args = arg;
+
+    ((update_func)func)(args->frametime);
+}
+
 bool FumoInit(struct FumoGame *game)
 {
     if (!PlatformInit())
diff --git a/source/fumoengine/fumoengine.h b/source/fumoengine/fumoengine.h
index 59e5a2e..560b7b8 100644
--- a/source/fumoengine/fumoengine.h
+++ b/source/fumoengine/fumoengine.h
@@ -13,7 +13,7 @@ struct FumoGame {
     struct Event draw;
     struct Event update;
 
-    Time time;
+    nsec time;
 };
 
 
diff --git a/source/fumoengine/include/event.c b/source/fumoengine/include/event.c
index b602115..4e23fc9 100644
--- a/source/fumoengine/include/event.c
+++ b/source/fumoengine/include/event.c
@@ -2,57 +2,49 @@
 
 #define INIT_CAPACITY 16
 
-size_t clbks_size(size_t capacity) {
-    return sizeof(union func) * capacity;
-}
 
 bool CreateEvent(struct Event *event)
 {
-    union func *callbacks = malloc(clbks_size(INIT_CAPACITY));
+    void_func *callbacks = malloc(INIT_CAPACITY * sizeof(void_func));
     
     if (callbacks == nullptr)
         return false;
 
     *event = (struct Event) {
-        .clbks = callbacks,
+        .callbacks = callbacks,
         .len = 0,
-        .capacity = INIT_CAPACITY,
+        .capacity = INIT_CAPACITY
     };
+
     return true;
 }
 
 void FreeEvent(struct Event *event)
 {
-    free(event->clbks);
+    free(event->callbacks);
 }
 
-bool EventSubscribe(struct Event *event, union func callback)
+bool EventRegister(struct Event *event, void_func callback)
 {
     if (event->len == event->capacity) {
-        size_t new_cap = event->capacity * 2;
-        union func *new_clbks = realloc(event->clbks, clbks_size(new_cap));
+        usize new_size = event->capacity * 2 * sizeof(void_func);
+        void_func *new_callbacks = realloc(event->callbacks, new_size);
 
-        if (new_clbks == nullptr)
+        if (new_callbacks == nullptr)
             return false;
         
-        event->clbks = new_clbks;
-        event->capacity = new_cap;
+        event->callbacks = new_callbacks;
+        event->capacity = new_size;
     }
 
-    event->clbks[event->len++] = callback;
+    event->callbacks[event->len++] = callback;
+    
     return true;
 }
 
-void EventInvoke(struct Event *event, void *arg)
+void EventInvoke(struct Event *event, void *args)
 {
-    for (size_t i = 0; i < event->len; i++) {
-        event->clbks[i].generic(arg);
-    }
-}
-
-void EventInvokeUpdate(struct Event *event, Time dt)
-{
-    for (size_t i = 0; i < event->len; i++) {
-        event->clbks[i].update(dt);
+    for (usize i = 0; i < event->len; i++) {
+        event->callbacks[i](args);
     }
 }
\ No newline at end of file
diff --git a/source/fumoengine/include/event.h b/source/fumoengine/include/event.h
index 2145d1a..4a2e833 100644
--- a/source/fumoengine/include/event.h
+++ b/source/fumoengine/include/event.h
@@ -8,21 +8,20 @@
 #include "fumocommon.h"
 
 
-union func {
-    void (*generic)(void *arg);
-    void (*update)(Time dt);
-};
+typedef void (*void_func)(void *arg);
+
+typedef void (*invoker_func)(void_func func, void *arg);
+
 
 struct Event {
-    union func *clbks;
-    size_t len;
-    size_t capacity;
+    void_func *callbacks;
+    usize len;
+    usize capacity;
 };
 
+
 bool CreateEvent(struct Event *event);
 
-bool EventSubscribe(struct Event *event, union func callback);
+bool EventRegister(struct Event *event, void_func callback);
 
-void EventInvoke(struct Event *event, void *arg);
-
-void EventInvokeUpdate(struct Event *event, Time dt);
\ No newline at end of file
+void EventInvoke(struct Event *event, void *args);
\ No newline at end of file
diff --git a/source/fumoengine/include/hash.c b/source/fumoengine/include/hash.c
deleted file mode 100644
index dd37526..0000000
--- a/source/fumoengine/include/hash.c
+++ /dev/null
@@ -1,24 +0,0 @@
-#include <iso646.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "fumocommon.h"
-
-
-typedef u32 hashtype;
-
-hashtype Hash(void *item, size_t size)
-{
-    u8 *data = (u8 *)item;
-
-    u32 h = 98317;
-    for (size_t i = 0; i < size; i++) {
-        h ^= data[i];
-        h *= 0x5bd1e995;
-        h ^= h >> 15;
-    }
-
-    return h;
-}
\ No newline at end of file
diff --git a/source/fumoengine/include/hash.h b/source/fumoengine/include/hash.h
deleted file mode 100644
index 3e3b328..0000000
--- a/source/fumoengine/include/hash.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#pragma once
-#include <iso646.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "fumocommon.h"
-
-
-typedef u32 hashtype;
-
-hashtype Hash(void *item, size_t size);
\ No newline at end of file
diff --git a/source/fumoengine/include/ringbuffer.c b/source/fumoengine/include/ringbuffer.c
index 19c9496..2a7914b 100644
--- a/source/fumoengine/include/ringbuffer.c
+++ b/source/fumoengine/include/ringbuffer.c
@@ -37,7 +37,7 @@ void RingBufferTransfer(
     struct RingBufferHead *dest,
     struct RingBufferHead *tmp
 ) {
-    size_t copy_max = MinSize(T->LEN - dest->len, tmp->len);
+    size_t copy_max = min_usize(T->LEN - dest->len, tmp->len);
 
     for (size_t i = 0; i < copy_max; i++) {
         void *to = RingBufferGet(T, dest, dest->len + i);
@@ -55,7 +55,7 @@ size_t RingBufferOut(
     void *dest,
     struct RingBufferHead *src
 ) {
-    size_t copy_max = MinSize(n, src->len);
+    size_t copy_max = min_usize(n, src->len);
 
     for (size_t i = 0; i < copy_max; i++) {
         void *to = (u8 *)dest + i * T->SIZE;
diff --git a/source/fumoengine/input/ctrl.h b/source/fumoengine/input/ctrl.h
index 270634a..c55c73c 100644
--- a/source/fumoengine/input/ctrl.h
+++ b/source/fumoengine/input/ctrl.h
@@ -10,8 +10,8 @@
 
 
 struct InputAxis {
-    Time last_pressed;
-    Time last_released;
+    nsec last_pressed;
+    nsec last_released;
 
     union {
         struct Button but;
diff --git a/source/fumoengine/input/input.h b/source/fumoengine/input/input.h
index 4d0e97b..1495b74 100644
--- a/source/fumoengine/input/input.h
+++ b/source/fumoengine/input/input.h
@@ -60,7 +60,7 @@ union InputData {
 
 
 struct InputRecord {
-    Time time;
+    nsec time;
 
     union {
         struct Button but;
diff --git a/source/fumoengine/input/platforms/platform.h b/source/fumoengine/input/platforms/platform.h
index a7a6d86..c7ed2a6 100644
--- a/source/fumoengine/input/platforms/platform.h
+++ b/source/fumoengine/input/platforms/platform.h
@@ -20,4 +20,4 @@ bool PlatformReadInput(struct RecordBuffer *recs, struct StringBuffer *str);
 
 bool PlatformStopInput();
 
-bool PlatformWait(Time duration);
\ No newline at end of file
+bool PlatformWait(nsec duration);
\ No newline at end of file
diff --git a/source/fumoengine/input/platforms/win.c b/source/fumoengine/input/platforms/win.c
index cfbbd15..314e789 100644
--- a/source/fumoengine/input/platforms/win.c
+++ b/source/fumoengine/input/platforms/win.c
@@ -176,7 +176,7 @@ bool PlatformReadInput(struct RecordBuffer *recs, struct StringBuffer *str)
     if (len == 0)
         return false;
 
-    Time now = TimeNow();
+    nsec now = TimeNow();
 
     for (size_t i = 0; i < len; i++) {
         struct InputRecord *rec = RingBufferNext(IO_BUF_T, &recs->head);
@@ -195,7 +195,7 @@ bool PlatformStopInput()
     return CancelSynchronousIo(win.input_hand);
 }
 
-bool PlatformWait(Time duration)
+bool PlatformWait(nsec duration)
 {
     LARGE_INTEGER nsec_div_100;
     nsec_div_100.QuadPart = -duration / 100;
diff --git a/source/fumoengine/terminal/term.c b/source/fumoengine/terminal/term.c
deleted file mode 100644
index 8840c31..0000000
--- a/source/fumoengine/terminal/term.c
+++ /dev/null
@@ -1,148 +0,0 @@
-#include "term.h"
-
-
-size_t term_buf_size(size_t area,  size_t hgt)
-{
-    static const size_t reset_str_len = 7;
-    static const size_t max_color_str_len = 10;
-
-    return reset_str_len + (max_color_str_len + 1) * area + hgt + 1;
-}
-
-bool CreateTerminal(struct Terminal *term, size_t wid, size_t hgt)
-{
-    size_t area = wid * hgt;
-    size_t buf_size = term_buf_size(area, hgt);
-
-    struct Char4 *chs = calloc(area, sizeof(struct Char4));
-    
-    if (chs == nullptr)
-        return false;
-
-    *term = (struct Terminal) {
-        .wid = wid,
-        .hgt = hgt,
-        .area = area,
-
-        .chs = chs,
-    };
-
-    return true;
-}
-
-void FreeTerminal(struct Terminal *term)
-{
-    free(term->chs);
-}
-
-size_t u8_to_buf(char *buf, u8f x)
-{
-    size_t len = 1;
-
-    if (x > 9) {
-        u8f o, t;
-
-        o = x % 10;
-        t = x / 10;
-
-        if (x > 99) {
-            u8f h;
-
-            t %= 10;
-            h = t / 10;
-            len = 3;
-
-            buf[0] = h + 48;
-            buf[1] = t + 48;
-            buf[2] = o + 48;
-        } else {
-            len = 2;
-
-            buf[0] = t + 48;
-            buf[1] = o + 48;
-        }
-    } else {
-        buf[0] = x + 48;
-    }
-
-    return len;
-}
-
-size_t ch4_dif_to_buf(char *buf, struct Char4 *dif, struct Char4 *blk)
-{
-    size_t len = 0;
-
-    if (dif->bg != blk->bg) {
-        dif->bg = blk->bg;
-        u8f bg = blk->bg + (blk->bg < 8 ? 40 : 92);
-
-        buf[len++] = '\x1b';
-        buf[len++] = '[';
-        len += u8_to_buf(buf + len, bg);
-
-        if (dif->fg != blk->fg) {
-            dif->fg = blk->fg;
-            u8f fg = blk->fg + (blk->fg < 8 ? 30 : 82);
-
-            buf[len++] = ';';
-            len += u8_to_buf(buf + len, fg);
-        }
-
-        buf[len++] = 'm';
-    } else if (dif->fg != blk->fg) {
-        dif->fg = blk->fg;
-        u8f fg = blk->fg + (blk->fg < 8 ? 30 : 82);
-
-        buf[len++] = '\x1b';
-        buf[len++] = '[';
-        len += u8_to_buf(buf + len, fg);
-        buf[len++] = 'm';
-    }
-    buf[len++] = blk->ch;
-    
-    return len;
-}
-
-size_t TerminalPrint(char *dest, size_t n, struct Terminal *term)
-{
-    struct Char4 dif;
-
-    size_t len = 7;
-    memcpy(term->buf, "\x1b[H\x1b[0m", 7);
-
-    for (size_t y = 0; y < term->hgt; y++) {
-    for (size_t x = 0; x < term->wid; x++) {
-        size_t i = y * term->wid + x;
-        struct Char4 *blk = &term->chs[i];
-
-        // DEBUG
-        if (blk->ch == 0)
-            blk->ch = '#';
-        // DEBUG
-
-        len += ch4_dif_to_buf(term->buf + len, &dif, blk);
-    }
-        term->buf[len++] = '\n';
-    }
-
-    term->buf[len] = 0;
-    return len;
-}
-
-/*int main()
-{
-    struct Terminal term;
-    NewTerm(&term, 20, 20);
-
-    for (int i = 0; i < 20 * 20; i++) {
-        term.blks[i].ch = 'l';
-        term.blks[i].bg = 0;
-        term.blks[i].fg = 8;
-    }
-
-    size_t len = TermOut(&term);
-    puts(term.buf);
-
-    printf("hi");
-    return 0;
-}*/
\ No newline at end of file
diff --git a/source/fumoengine/terminal/terminal.c b/source/fumoengine/terminal/terminal.c
new file mode 100644
index 0000000..cb11f6d
--- /dev/null
+++ b/source/fumoengine/terminal/terminal.c
@@ -0,0 +1,133 @@
+#include "terminal.h"
+
+#define RESET_STR_LEN 7
+#define MAX_CH4_LEN 11
+
+
+usize TerminalStringSize(usize wid,  usize hgt)
+{
+    return RESET_STR_LEN
+        + MAX_CH4_LEN * wid * hgt
+        + hgt
+        + 1;
+}
+
+bool CreateTerminal(struct Terminal *term, usize wid, usize hgt)
+{
+    struct Char4 *ch4s = calloc(wid * hgt, sizeof(struct Char4));
+    
+    if (ch4s == nullptr)
+        return false;
+
+    *term = (struct Terminal) {
+        .wid = wid,
+        .hgt = hgt,
+
+        .ch4s = ch4s
+    };
+
+    return true;
+}
+
+void FreeTerminal(struct Terminal *term)
+{
+    free(term->ch4s);
+}
+
+usize u8_to_buf(char *buf, u8f x)
+{
+    usize len = 1;
+
+    if (x > 9) {
+        u8f ones, tens;
+
+        ones = x % 10;
+        tens = x / 10;
+
+        if (x > 99) {
+            u8f hnds;
+
+            tens %= 10;
+            hnds = tens / 10;
+            len = 3;
+
+            buf[0] = hnds + 48;
+            buf[1] = tens + 48;
+            buf[2] = ones + 48;
+        } else {
+            len = 2;
+
+            buf[0] = tens + 48;
+            buf[1] = ones + 48;
+        }
+    } else {
+        buf[0] = x + 48;
+    }
+
+    return len;
+}
+
+u8f ansi_bg(u8f bg)
+{
+    return bg + (bg < 8 ? 40 : 92);
+}
+
+u8f ansi_fg(u8f fg)
+{
+    return fg + (fg < 8 ? 30 : 82);
+}
+
+usize ch4_dif_to_buf(char *buf, struct Color4 *dif, struct Char4 *ch4)
+{
+    usize len = 0;
+
+    if (dif->bg != ch4->color.bg) {
+        buf[len++] = '\x1b';
+        buf[len++] = '[';
+        len += u8_to_buf(buf + len, ansi_bg(ch4->color.bg));
+
+        if (dif->fg != ch4->color.fg) {
+            buf[len++] = ';';
+            len += u8_to_buf(buf + len, ansi_fg(ch4->color.fg));
+        }
+
+        buf[len++] = 'm';
+
+    } else if (dif->fg != ch4->color.fg) {
+        buf[len++] = '\x1b';
+        buf[len++] = '[';
+        len += u8_to_buf(buf + len, ansi_fg(ch4->color.fg));
+        buf[len++] = 'm';
+    }
+
+    buf[len++] = ch4->ch;
+    *dif = ch4->color;
+    
+    return len;
+}
+
+usize TerminalPrint(char *buf, usize n, struct Terminal *term)
+{
+    struct Char4 dif;
+
+    usize len = 7;
+    memcpy(buf, "\x1b[H\x1b[0m", 7);
+
+    for (usize y = 0; y < term->hgt; y++) {
+    for (usize x = 0; x < term->wid; x++) {
+        usize i = y * term->wid + x;
+        struct Char4 *ch4 = &term->ch4s[i];
+
+        // DEBUG
+        if (ch4->ch == 0)
+            ch4->ch = '#';
+        // DEBUG
+
+        len += ch4_dif_to_buf(buf + len, &dif, ch4);
+    }
+        buf[len++] = '\n';
+    }
+
+    buf[len] = 0;
+    return len;
+}
\ No newline at end of file
diff --git a/source/fumoengine/terminal/term.h b/source/fumoengine/terminal/terminal.h
similarity index 54%
rename from source/fumoengine/terminal/term.h
rename to source/fumoengine/terminal/terminal.h
index 082f50d..8039337 100644
--- a/source/fumoengine/terminal/term.h
+++ b/source/fumoengine/terminal/terminal.h
@@ -8,22 +8,25 @@
 #include "fumocommon.h"
 
 
-struct Char4 {
-    char ch;
+struct Color4 {
     u8 bg : 4;
     u8 fg : 4;
 };
 
-struct Terminal {
-    size_t wid;
-    size_t hgt;
-    size_t area;
-    
-    struct Char4 *chs;
+struct Char4 {
+    struct Color4 color;
+    char ch;
 };
 
-bool CreateTerminal(struct Terminal *term, size_t wid, size_t hgt);
+struct Terminal {
+    usize wid;
+    usize hgt;
+    
+    struct Char4 *ch4s;
+};
+
+bool CreateTerminal(struct Terminal *term, usize wid, usize hgt);
 
 void FreeTerminal(struct Terminal *term);
 
-size_t TerminalPrint(char *dest, size_t n, struct Terminal *term);
\ No newline at end of file
+usize TerminalPrint(char *buf, usize n, struct Terminal *term);
\ No newline at end of file
diff --git a/source/fumotris/fumotris.c b/source/fumotris/fumotris.c
index 6127712..39dce5e 100644
--- a/source/fumotris/fumotris.c
+++ b/source/fumotris/fumotris.c
@@ -43,13 +43,13 @@ void Loop(struct FumoGame *game)
             Panic("Aquire failed");
             
         ControllerPoll(&game->ctrl, &game->input_hand.recs);
-        u64 val = ControllerGet(&game->ctrl, LEFT, BUTTON)->is_down;
-        printf("%u\n", val);
 
         if (!InputRelease(&game->input_hand))
             Panic("Release failed");
 
-        EventInvokeUpdate(&game->update, 0);
+        
+
+        EventInvoke(&game->update, 0);
 
         _sleep(100);
     }
diff --git a/source/fumotris/tetr.c b/source/fumotris/tetr.c
index 816d8fd..47e799d 100644
--- a/source/fumotris/tetr.c
+++ b/source/fumotris/tetr.c
@@ -43,8 +43,8 @@ void TetrMapToTermBuf(struct TetrMap *map, struct Terminal *term)
         size_t map_i = y * map->wid + x;
         size_t buf_i = (y + map->y) * term->wid + (x + map->x) * 2;
 
-        struct Char4 *a = &term->chs[buf_i];
-        struct Char4 *b = &term->chs[buf_i + 1];
+        struct Char4 *a = &term->ch4s[buf_i];
+        struct Char4 *b = &term->ch4s[buf_i + 1];
 
         if (map->blks[map_i] == 0) {
             a->ch = '(';