big refactor

Makefile

@@ -1,5 +1,32 @@
 COMPILER = gcc
-C_FLAGS = -std=c99 -g -Wall -Werror -Wpedantic -Wshadow -Wstrict-prototypes -Wno-unknown-pragmas
+
+C_FLAG_STD_C99             = -std=c99              # Use the C99 language standard
+C_FLAG_DEBUG_INFO          = -g                    # Include debug information
+# C_FLAG_HEADERS 		       = -H					   # Prints paths of all headers
+C_FLAG_ALL_WARNINGS        = -Wall                 # Enable most common warning
+C_FLAG_PEDANTIC            = -Wpedantic            # Enforce ISO C standard strictly
+C_FLAG_SHADOW              = -Wshadow              # Warn if a local variable shadows another
+C_FLAG_STRICT_PROTOS       = -Wstrict-prototypes   # Warn if function declarations are missing parameter types
+C_FLAG_NO_UNKNOWN_PRAGMAS  = -Wno-unknown-pragmas  # Suppress warnings about unknown pragmas
+C_FLAGS = \
+    $(C_FLAG_STD_C99) \
+    $(C_FLAG_DEBUG_INFO) \
+	$(C_FLAG_HEADERS) \
+    $(C_FLAG_ALL_WARNINGS) \
+    $(C_FLAG_PEDANTIC) \
+    $(C_FLAG_SHADOW) \
+    $(C_FLAG_STRICT_PROTOS) \
+    $(C_FLAG_NO_UNKNOWN_PRAGMAS)
+
+INCLUDE_FLAGS = -Iinclude
+
+EXTERNAL_ENGINE = -Iexternal/engine
+EXTERNAL_RAYGUI = -Iexternal/raygui 
+EXTERNAL_RINI = -Iexternal/rini
+EXTERNAL_FLAGS = \
+	$(EXTERNAL_ENGINE) \
+	$(EXTERNAL_RINI) \
+	$(EXTERNAL_RAYGUI)
 
 ifeq ($(OS), Windows_NT)
 	SRC = src\main.c
@@ -14,7 +41,7 @@ endif
 $(shell mkdir -p bin/osx bin/win)
 
 build: $(SRC)
-	$(COMPILER) $(SRC) -o $(TARGET) $(C_FLAGS) $(RAYLIB_FLAGS)
+	$(COMPILER) $(SRC) -o $(TARGET) $(C_FLAGS) $(INCLUDE_FLAGS) $(EXTERNAL_FLAGS) $(RAYLIB_FLAGS) 
 
 clean:
 	rm -f $(TARGET)