Add setMoney example executable

examples/Makefile

@@ -16,6 +16,7 @@ all:
 	$(MAKE) -C gen2_setEventFlag $(MAKECMDGOALS) $(MAKEOVERRIDES)
 	$(MAKE) -C decodePartyIcons $(MAKECMDGOALS) $(MAKEOVERRIDES)
 	$(MAKE) -C findLocalizationOffsets $(MAKECMDGOALS) $(MAKEOVERRIDES)
+	$(MAKE) -C setMoney $(MAKECMDGOALS) $(MAKEOVERRIDES)
 
 clean:
 	$(MAKE) -C do_stuff_gen1 clean
@@ -32,4 +33,5 @@ clean:
 	$(MAKE) -C gen2_setEventFlag clean
 	$(MAKE) -C decodePartyIcons clean
 	$(MAKE) -C findLocalizationOffsets clean
+	$(MAKE) -C setMoney clean
 	

examples/setMoney/Makefile

@@ -0,0 +1,48 @@
+# # Compiler flags
+CXXFLAGS := -std=c++11 -fno-rtti -fno-exceptions -fno-unwind-tables -Wall -Wextra -I $(CURDIR) -I $(CURDIR)/../../include -g -Os
+
+# Source files directory
+SRC_DIR := .
+# Build directory
+BUILD_DIR := build
+
+# Source files (add more as needed)
+SRCS := $(shell find $(SRC_DIR) -type f -name '*.cpp')
+# Object files
+OBJS := $(patsubst $(SRC_DIR)/%.cpp,$(BUILD_DIR)/%.o,$(SRCS))
+
+LIBS := -lpokemegb
+ifeq ($(PNG_SUPPORT),1)
+	LIBS += -lpng
+endif
+
+# Ensure necessary directories exist
+# This function ensures the directory for the target exists
+define make_directory
+	@mkdir -p $(dir $@)
+endef
+
+# Target executable
+TARGET := ../../setMoney
+
+# Phony targets
+.PHONY: all clean
+
+# Default target
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CXX) $(CXXFLAGS) $^ -o $@ $(LIBS) -L ../../
+
+# Rule to compile source files
+$(BUILD_DIR)/%.o: $(SRC_DIR)/%.cpp | $(BUILD_DIR)
+	$(make_directory)
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+# Create the build directory if it doesn't exist
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+
+# Clean rule
+clean:
+	rm -rf $(BUILD_DIR) $(TARGET)

examples/setMoney/main.cpp

@@ -0,0 +1,79 @@
+#include "gen1/Gen1GameReader.h"
+#include "gen2/Gen2GameReader.h"
+#include "RomReader.h"
+#include "SaveManager.h"
+#include "utils.h"
+
+#include <cstdio>
+#include <cstdint>
+#include <cstdlib>
+
+static void print_usage()
+{
+    printf("Usage: setMoney <path/to/rom.gbc> <path/to/file.sav> <amount>\n");
+}
+
+int main(int argc, char** argv)
+{
+    if(argc != 4)
+    {
+        print_usage();
+        return 1;
+    }
+    uint8_t* romBuffer;
+    uint8_t* savBuffer;
+    uint32_t romFileSize;
+    uint32_t savFileSize;
+    uint32_t amount = std::atoi(argv[3]);
+
+    printf("rom: %s, save: %s, amount: %u\n", argv[1], argv[2], amount);
+
+    romBuffer = readFileIntoBuffer(argv[1], romFileSize);
+    if(!romBuffer)
+    {
+        fprintf(stderr, "ERROR: Couldn't read file %s\n", argv[1]);
+        return 1;
+    }
+    savBuffer = readFileIntoBuffer(argv[2], savFileSize);
+    if(!savBuffer)
+    {
+        fprintf(stderr, "ERROR: Couldn't read file %s\n", argv[2]);
+        free(romBuffer);
+        romBuffer = nullptr;
+        return 1;
+    }
+
+    GameboyCartridgeHeader cartridgeHeader;
+    BufferBasedRomReader romReader(romBuffer, romFileSize);
+    BufferBasedSaveManager saveManager(savBuffer, savFileSize);
+
+    readGameboyCartridgeHeader(romReader, cartridgeHeader);
+
+    // check if we're dealing with gen 1
+    const Gen1GameType gen1Type = gen1_determineGameType(cartridgeHeader);
+    const Gen2GameType gen2Type = gen2_determineGameType(cartridgeHeader);
+    if (gen1Type != Gen1GameType::INVALID)
+    {
+        Gen1GameReader gameReader(romReader, saveManager, gen1Type);
+        gameReader.setTrainerMoney(amount);
+        gameReader.updateMainChecksum();
+    }
+    else if (gen2Type != Gen2GameType::INVALID)
+    {
+        Gen2GameReader gameReader(romReader, saveManager, gen2Type);
+        gameReader.setTrainerMoney(amount);
+        gameReader.finishSave();
+    }
+
+    FILE* f = fopen(argv[2], "w");
+    fwrite(savBuffer, 1, savFileSize, f);
+    fclose(f);
+
+    free(romBuffer);
+    romBuffer = nullptr;
+
+    free(savBuffer);
+    savBuffer = nullptr;
+
+    return 0;
+}