Add packer

.gitignore

@@ -1,5 +1,4 @@
 awoorwa
 awoorwae
-packer
 *.exe
 *.o

packer/.gitignore

@@ -0,0 +1,3 @@
+*.pack
+*.o
+packer

packer/Makefile

@@ -0,0 +1,26 @@
+CPPFLAGS=-Wall -Wno-misleading-indentation -Werror --std=c++1z -O3 -flto
+LDFLAGS=
+INCLUDES=-I../pge/include
+EXECUTABLE=packer
+LIBRARIES=
+ifeq ($(OS),Windows_NT)
+	EXECUTABLE+=.exe
+	CPP=i686-w64-mingw32-g++
+	CC=i686-w64-mingw32-gcc
+else
+	CC=gcc
+	CPP=g++
+endif
+SOURCES=packer.cpp ../pge/src/olcPGE_ResourcePack.cpp
+OBJECTS=$(SOURCES:.cpp=.o)
+
+all: $(SOURCES) $(EXECUTABLE)
+
+clean: 
+	$(RM) $(OBJECTS) $(EXECUTABLE)
+	
+$(EXECUTABLE): $(OBJECTS) 
+	$(CPP) $(LDFLAGS) $(OBJECTS) -o $@ $(LIBRARIES)
+
+.cpp.o:
+	$(CPP) $(INCLUDES) -c $(CPPFLAGS) $< -o $@

packer/packer.cpp

@@ -0,0 +1,69 @@
+#include "olcPGE_ResourcePack.h"
+#include <iostream>
+#include <string>
+
+void PrintUsage() {
+    std::cout << "Usage: packer --list PACK_FILE"            << std::endl;
+    std::cout << "       packer --add PACK_FILE FILE"        << std::endl;
+    std::cout << "       packer --remove PACK_FILE FILE"     << std::endl;
+    // std::cout << "       packer --convert PNG_FILE SPR_FILE" << std::endl;
+}
+
+void ListEntries(olc::ResourcePack& pack) {
+    auto entries = pack.GetEntries();
+    std::cout << "Total entries: " << entries.size() << std::endl;
+    for (auto entry: entries) {
+        std::cout << entry << std::endl;
+    }
+}
+
+int main(int argc, char *argv[])
+{
+    std::string packFile;
+    std::string action;
+
+    if (argc < 3) {
+        PrintUsage();
+        return -1;
+    }
+
+    action = argv[1];
+    packFile = argv[2];
+
+    olc::ResourcePack pack;
+    pack.LoadPack(packFile);
+
+    if (action == "--list") {
+        ListEntries(pack);
+    } else if (action == "--add" || action == "--remove") {
+        if (argc < 4) {
+            PrintUsage();
+            return -1;
+        }
+        for (int i = 3; i < argc; i++) {
+            std::string fileName = argv[i];
+            if (action == "--add") {
+                if (!pack.AddToPack(fileName)) {
+                    std::cerr << "Could not open file " << fileName << std::endl;
+                    return -3;
+                }
+                std::cout << "+ " << fileName << std::endl;
+            } else if (action == "--remove") {
+                if (!pack.RemoveFromPack(fileName)) {
+                    std::cerr << "Could not open file " << fileName << std::endl;
+                    return -3;
+                }
+                std::cout << "- " << fileName << std::endl;
+            }
+        }
+        std::cout << std::endl;
+        ListEntries(pack);
+    } else {
+        PrintUsage();
+        return -1;
+    }
+
+    pack.SavePack(packFile);
+
+    return 0;
+}