modularity problem

makefile

@@ -1,8 +1,9 @@
 CFLAGS=$(shell cat compiler_flags.txt)
+FILES=$(wildcard src/*.cpp)
 
-build/raylib-test-linux.x86_64 : src/main.cpp
+build/raylib-test-linux.x86_64 : $(FILES)
 	mkdir -p build
-	clang src/main.cpp $(CFLAGS) -o build/raylib-test-linux.x86_64
+	clang $(FILES) $(CFLAGS) -o build/raylib-test-linux.x86_64
 
 
 clean :

src/components.cpp

@@ -0,0 +1,56 @@
+#include <raylib.h>
+#include <raymath.h>
+
+class IComponent {
+	public:
+		virtual ~IComponent() {}
+		virtual void process() = 0;
+};
+
+class Pacman : IComponent {
+	const int speed = 64;
+	private:
+		Texture2D texture;
+		Vector2 position;
+		int facing;
+
+		Rectangle getTextureRect(){
+			Rectangle result;
+			result.x = 0;
+			result.y = facing*16;
+			result.height = 16;
+			result.width = 16;
+			return result;
+		}
+	public:
+		Pacman() {
+			this->texture = LoadTexture("assets/sprites/pacman.png");
+			this->facing = 0;
+			this->position = {0.,0.};
+		}
+		Pacman(Vector2 position) {
+			this->texture = LoadTexture("assets/sprites/pacman.png");
+			this->facing = 0;
+			this->position = position;
+		}
+		~Pacman() {
+			UnloadTexture(this->texture);
+		}
+		virtual void process() {
+			float delta = GetFrameTime();
+			
+			// Input handling
+			if (IsKeyDown(KEY_W) || IsKeyDown(KEY_UP)) {this->facing=1;}
+			if (IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT)) {this->facing=2;}
+			if (IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN)) {this->facing=3;}
+			if (IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT)) {this->facing=0;}
+
+			// Movement in direction
+			double angle = PI/2.0*facing;
+			Vector2 direction = {(float)(cos(angle)),(float)(sin(-angle))};
+			this->position = Vector2Add(this->position,Vector2Scale(direction, delta * (float)speed)); 
+			
+			// Drawing
+			DrawTextureRec(this->texture, this->getTextureRect(), this->position, WHITE);
+		}
+};

src/components.h

@@ -1,3 +1,6 @@
+#include <raylib.h>
+#include <raymath.h>
+
 class IComponent {
 	public:
 		virtual ~IComponent() {}
@@ -5,8 +8,16 @@ class IComponent {
 };
 
 class Pacman : IComponent {
-	public:
+	const int speed = 64;
-		virtual void process() {
+	private:
+		Texture2D texture;
+		Vector2 position;
+		int facing;
 
-		}
+		Rectangle getTextureRect();
+	public:
+		Pacman();
+		Pacman(Vector2 position);
+		~Pacman();
+		virtual void process();
 };

src/main.cpp

@@ -1,57 +1,6 @@
 #include <raylib.h>
-#include <cmath>
 #include <raymath.h>
-
+#include "components.h"
-// Player controlled entity
-class Pacman {
-	const int speed = 64;
-	private:
-		Texture2D texture;
-		Vector2 position;
-		int facing;
-
-		Rectangle getTextureRect(){
-			Rectangle result;
-			result.x = 0;
-			result.y = facing*16;
-			result.height = 16;
-			result.width = 16;
-			return result;
-		}
-	public:
-		Pacman() {
-			this->texture = LoadTexture("assets/sprites/pacman.png");
-			this->facing = 0;
-			this->position = {0.,0.};
-		}
-		Pacman(Vector2 position) {
-			this->texture = LoadTexture("assets/sprites/pacman.png");
-			this->facing = 0;
-			this->position = position;
-		}
-		~Pacman() {
-			UnloadTexture(this->texture);
-		}
-		
-		void process() {
-			float delta = GetFrameTime();
-			
-			// Input handling
-			if (IsKeyDown(KEY_W) || IsKeyDown(KEY_UP)) {this->facing=1;}
-			if (IsKeyDown(KEY_A) || IsKeyDown(KEY_LEFT)) {this->facing=2;}
-			if (IsKeyDown(KEY_S) || IsKeyDown(KEY_DOWN)) {this->facing=3;}
-			if (IsKeyDown(KEY_D) || IsKeyDown(KEY_RIGHT)) {this->facing=0;}
-
-			// Movement in direction
-			double angle = PI/2.0*facing;
-			Vector2 direction = {(float)(cos(angle)),(float)(sin(-angle))};
-			this->position = Vector2Add(this->position,Vector2Scale(direction, delta * (float)speed)); 
-			
-			// Drawing
-			DrawTextureRec(this->texture, this->getTextureRect(), this->position, WHITE);
-		}
-
-};
 
 int main() {
 	const int screen_height = 320;