diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6f68b63..bd923c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,7 +10,6 @@ add_executable(csnake
   src/screen.c
   src/input.c
   src/player.c
-  src/platform.c
   src/sleep.c
 )
 
diff --git a/Makefile b/Makefile
index d13877c..e911941 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ INCLUDE = -Iinclude
 RM  = rm -f
 SRCDIR = src
 OBJDIR = obj
-SRC = main.c screen.c input.c player.c platform.c sleep.c
+SRC = main.c screen.c input.c player.c sleep.c
 OBJ = $(addprefix $(OBJDIR)/,$(SRC:.c=.o))
 
 DEFLDFLAGS = $(shell if echo "" | cc -E -dM -xc - | grep __FreeBSD__ > /dev/null 2>&1; then echo "-lpthread"; fi)
diff --git a/include/platform.h b/include/platform.h
index 8795e76..9592c71 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -1,11 +1,37 @@
 #ifndef __PLATFORM_H__
 #define __PLATFORM_H__
 
-void resetCoordinates(void);
 #ifdef _WIN32
-void threadCreate(void (*function)(void *), void *args);
+#include <Windows.h>
+#include <process.h>
 #else
-void threadCreate(void *(*function)(void *), void *args);
+#include <stdio.h>
+#include <pthread.h>
+#endif
+
+#ifdef _WIN32
+static inline void resetCoordinates(void)
+{
+    HANDLE output = GetStdHandle(STD_OUTPUT_HANDLE);
+    SetConsoleCursorPosition(output, (COORD){0});
+}
+#else
+static inline void resetCoordinates(void)
+{
+    printf("\e[1;1H\e[2J");
+}
+#endif
+
+#ifdef _WIN32
+static inline void threadCreate(void (*function)(void *), void *args)
+{
+    _beginthread(function, 0, args);
+}
+#else
+static inline void threadCreate(void *(*function)(void *), void *args)
+{
+    pthread_create(&(pthread_t){0}, 0, function, args);
+}
 #endif
 
 #endif /* __PLATFORM_H__ */
diff --git a/include/screen.h b/include/screen.h
index 8fb5dd1..6d03c97 100644
--- a/include/screen.h
+++ b/include/screen.h
@@ -1,6 +1,8 @@
 #ifndef __SCREEN_H__
 #define __SCREEN_H__
 
+#include <string.h>
+
 typedef char Point;
 typedef struct screen_t
 {
@@ -12,8 +14,17 @@ typedef struct screen_t
 Screen *screenCreate(int width, int height, Point fill_value);
 void screenFree(Screen *screen);
 
-Point *screenGetPoint(Screen *screen, int x, int y);
 void screenShow(Screen *screen);
-void screenSet(Screen *screen, char fill_value);
+
+static inline Point *screenGetPoint(Screen *screen, int x, int y)
+{
+    return screen->screen + x + (y * screen->width);
+}
+
+static inline void screenSet(Screen *screen, Point fill_value)
+{
+    memset(screen->screen, fill_value, screen->width * screen->height * sizeof(char));
+}
+
 
 #endif /* __SCREEN_H__ */
diff --git a/src/input.c b/src/input.c
index f970dfb..ba4391b 100644
--- a/src/input.c
+++ b/src/input.c
@@ -11,7 +11,7 @@
 #ifdef _WIN32
 #define getch _getch
 #else
-int getch(void)
+static int getch(void)
 {
     char buf = 0;
     struct termios old = { 0 };
diff --git a/src/platform.c b/src/platform.c
deleted file mode 100644
index bfaa6ef..0000000
--- a/src/platform.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifdef _WIN32
-#include <Windows.h>
-#include <process.h>
-#else
-#include <stdio.h>
-#include <pthread.h>
-#endif
-
-#ifdef _WIN32
-void resetCoordinates(void)
-{
-    HANDLE output = GetStdHandle(STD_OUTPUT_HANDLE);
-    SetConsoleCursorPosition(output, (COORD){0});
-}
-#else
-void resetCoordinates(void)
-{
-    printf("\e[1;1H\e[2J");
-}
-#endif
-
-#ifdef _WIN32
-void threadCreate(void (*function)(void *), void *args)
-{
-    _beginthread(function, 0, args);
-}
-#else
-void threadCreate(void *(*function)(void *), void *args)
-{
-    pthread_create(&(pthread_t){0}, 0, function, args);
-}
-#endif
diff --git a/src/screen.c b/src/screen.c
index 514af70..8103e29 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -21,11 +21,6 @@ void screenFree(Screen *screen)
     free(screen);
 }
 
-Point *screenGetPoint(Screen *screen, int x, int y)
-{
-    return screen->screen + x + (y * screen->width);
-}
-
 void screenShow(Screen *screen)
 {
     int x, y, i;
@@ -43,8 +38,3 @@ void screenShow(Screen *screen)
         putchar('\n');
     }
 }
-
-void screenSet(Screen *screen, Point fill_value)
-{
-    memset(screen->screen, fill_value, screen->width * screen->height * sizeof(char));
-}
diff --git a/src/sleep.c b/src/sleep.c
index 943c45f..fce4c13 100644
--- a/src/sleep.c
+++ b/src/sleep.c
@@ -1,6 +1,6 @@
 #include <time.h>
 
-long long int getMS()
+static long long int getMS()
 {
     struct timespec ts;
     timespec_get(&ts, TIME_UTC);