switch to a makefile build system

.gitignore

@@ -1,4 +1,5 @@
 .vscode/*
 !.vscode/tasks.json
 !.vscode/launch.json
-build
+bin
+obj

build.sh

@@ -1,71 +0,0 @@
-#!/bin/bash
-
-# define variables
-PROJECT_NAME=${PWD##*/}
-BUILD_DIR="./build"
-INCLUDE_IN_BUILD="./assets"
-
-# compilation targets
-args_linux86_64()
-{
-    ARCHITECTURE="linux-86_64"
-    COMPILER="/bin/gcc"
-    ARGS="-lSDL2"
-    FILE_EXSTENSION=""
-}
-
-args_win86-64()
-{
-    ARCHITECTURE="win-86_64"
-    COMPILER="/usr/bin/x86_64-w64-mingw32-gcc"
-    ARGS="-lmingw32 -lSDL2main -lSDL2 -mwindows"
-    INCLUDE_IN_BUILD="$INCLUDE_IN_BUILD /usr/x86_64-w64-mingw32/bin/SDL2.dll"
-    FILE_EXSTENSION=".exe"
-}
-
-args_emscripten()
-{
-    ARCHITECTURE="web"
-    COMPILER="emcc"         # just make sure it's in $PATH (it's a pain to install)
-    ARGS="-s USE_SDL=2"
-    FILE_EXSTENSION=".html"
-}
-
-# handle arguments
-if [ "$1" = "linux86_64" ]; then args_linux86_64
-elif [ "$1" = "win86_64" ]; then args_win86-64
-elif [ "$1" = "web" ]; then args_emscripten
-else echo -e "\033[91mdidn't include any arguments! D:\033[0m" && exit 1
-fi
-
-# check whether $BUILD_DIR or $ARCHITECTURE isn't set
-if [[ -z $BUILD_DIR ]] || [[ -z "$ARCHITECTURE" ]]; then
-    echo -e "\033[91mBUILD_DIR or ARCHITECTURE not set D:\033[0m"
-    exit 1
-fi
-
-
-# make (and clear) the build directory
-mkdir -p "$BUILD_DIR/$ARCHITECTURE"
-rm -rf "${BUILD_DIR:?}/$ARCHITECTURE/*"
-
-# copy included files or directories to the build directory
-if [[ -n $INCLUDE_IN_BUILD ]]; then
-    cp -r "$INCLUDE_IN_BUILD" "$BUILD_DIR/$ARCHITECTURE"
-fi
-
-# get the executable path
-EXE_PATH=$BUILD_DIR/$ARCHITECTURE/$PROJECT_NAME$FILE_EXSTENSION
-echo "building at: $EXE_PATH"
-
-# check whether the compiler can actually be executed
-if [ ! -x "$COMPILER" ] && ! command -v "$COMPILER" > /dev/null; then
-    echo -e "\033[91mCouldn't find an executable at path: \033[0m $COMPILER"
-    exit 1
-fi
-
-# compile the code
-COMMAND="$COMPILER $(find ./src -name "*.c") -o $EXE_PATH -Wall -g -lm $ARGS"
-echo "using command: $COMMAND"
-$COMMAND
-exit $?

makefile

@@ -0,0 +1,36 @@
+NAME = sdl_template
+CFLAGS = -Wall -g -march=x86-64 -lm
+
+DIR_BIN = bin
+DIR_OBJ = obj
+
+SRC = $(wildcard src/*.c) $(wildcard src/**/*.c) $(wildcard src/**/**/*.c) $(wildcard src/**/**/**/*.c) $(wildcard src/**/**/**/**/*.c)
+OBJ = $(patsubst src/%,$(DIR_OBJ)/$(ARCH)/%,$(SRC:.c=.o))
+
+TARGET = $(DIR_BIN)/$(ARCH)/$(NAME)$(EXT)
+
+clean:
+	rm -rf $(DIR_BIN) $(DIR_OBJ)
+
+# sets the variables for the different targets
+linux-x86_64:
+	$(MAKE) build ARCH=linux-x86_64 CC=gcc PCFLAGS="-lSDL2"
+win86-64:
+	$(MAKE) build ARCH=win-x86-64 CC=x86_64-w64-mingw32-gcc PCFLAGS="-lmingw32 -lSDL2main -lSDL2 -mwindows" EXT=".exe"
+web:
+	$(MAKE) build ARCH=web CC=emcc PCFLAGS="-s USE_SDL=2" EXT=".html"
+
+build: dirs binary
+
+# creates the binary
+binary: $(OBJ)
+	$(CC) -o $(TARGET) $^ $(CFLAGS) $(PCFLAGS)
+
+# creates the object files
+$(DIR_OBJ)/$(ARCH)/%.o: src/%.c
+	mkdir -p $(dir $@)
+	$(CC) -o $@ -c $< $(CFLAGS) $(PCFLAGS)
+
+dirs:
+	mkdir -p $(DIR_BIN)/$(ARCH)
+	mkdir -p $(DIR_OBJ)/$(ARCH)