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path: root/data/maps/the_unkempt/rooms/Main Area.txtpb
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// Inspired a lot by https://github.com/jeffman/MOTHER-3-Funland

#include <fstream>
#include <string_view>
#include <stdexcept>
#include <string>
#include <vector>
#include <iostream>
#include <Magick++.h>
#include <sstream>
#include "common.h"

class PaletteSet {
public:
  PaletteSet(BufferView m3) : m3_(m3) {
    for (int i=0; i<16; i++
generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-10-08 09:49:22 +0000
pan class="n">GetPointer(0) + (i << 5)); } } const Palette& GetPalette(int spriteindex, int palnum = -1) { int a = GetPointer(spriteindex); if ((spriteindex > 0xFF) && (spriteindex < 0x26C)) { specialPals_[spriteindex] = Palette(m3_, a); return specialPals_[spriteindex]; } else { if (palnum == -1) { palnum = static_cast<unsigned char>(m3_.ReadByte(0x1433D7C + 1 + ((spriteindex + 1) * 12))) & 0xF; } return defaultPals_.at(palnum); } } private: int GetPointer(int spriteindex) { const int ADDR = 0x1A41548; int index = 0; if ((spriteindex > 0xFF) && (spriteindex < 0x26C)) { // These sprites use the (spriteindex - 0xFF)th entry index = spriteindex - 0xff; } int a = m3_.ReadFourBytes(ADDR + 4 + (index << 2)); if (a == -1) return -1; return ADDR + a; } BufferView m3_; std::vector<Palette> defaultPals_; std::map<int, Palette> specialPals_; }; struct Subsprite { int x; int y; int tile; bool flipH; bool flipV; int objSize; int objShape; int Width() const { return WIDTHS[objShape][objSize]; } int Height() const { return HEIGHTS[objShape][objSize]; } private: static constexpr int WIDTHS[3][4] = { { 8, 16, 32, 64 }, { 16, 32, 32, 64 }, { 8, 8, 16, 32 } }; static constexpr int HEIGHTS[3][4] = { { 8, 16, 32, 64 }, { 8, 8, 16, 32 }, { 16, 32, 32, 64 } }; }; struct FrameOutput { Magick::Image image; int width; int height; int centerX; int centerY; }; struct Sprite { std::vector<Subsprite> subsprites; FrameOutput render(BufferView m3, const Palette& palette, const int gfxPtr) const { FrameOutput output; if (subsprites.empty()) return output; int minX = subsprites[0].x; int minY = subsprites[0].y; int maxX = minX + subsprites[0].Width(); int maxY = minY + subsprites[0].Height(); for (int j=1; j<subsprites.size(); j++) { const Subsprite& o = subsprites[j]; if (o.x < minX) minX = o.x; if (o.y < minY) minY = o.y; if ((o.x + o.Width()) > maxX) maxX = o.x + o.Width(); if ((o.y + o.Height()) > maxY) maxY = o.y + o.Height(); } int width = maxX - minX; int height = maxY - minY; int centerX = -minX; int centerY = -minY; output.width = width; output.height = height; output.centerX = centerX; output.centerY = centerY; output.image = Magick::Image(Magick::Geometry(width, height), "transparent"); output.image.modifyImage(); Magick::Pixels view(output.image); for (const Subsprite& o : subsprites) { int tilePointer = o.tile << 5; for (int y=0; y<o.Height(); y += 8) { int actualY = o.flipV ? (o.Height() - y - 8) : y; for (int x=0; x<o.Width(); x += 8) { int tileData[8][8]; int tileSrcOffset = gfxPtr + tilePointer; for (int ty=0; ty<8; ty++) { for (int tx=0; tx<4; tx++) { unsigned char ch = m3.ReadByte(tileSrcOffset++); tileData[tx*2][ty] = static_cast<unsigned char>(ch & 0xF); tileData[tx*2+1][ty] = static_cast<unsigned char>((ch >> 4) & 0xF); } } tilePointer += 0x20; int actualX = o.flipH ? (o.Width() - x - 8) : x; int destX = o.x + centerX + actualX; int destY = o.y + centerY + actualY; Magick::PixelPacket* pixels = view.get(destX,destY,8,8); for (int ty=0; ty<8; ty++) { int actualTy = o.flipV ? (7-ty) : ty; for (int tx=0; tx<8; tx++) { int actualTx = o.flipH ? (7-tx) : tx; if (tileData[actualTx][actualTy] != 0) { //auto& c = palette.Colors().at(tileData[actualTx][actualTy]); //std::cout << c.redQuantum() << "," << c.greenQuantum() << "," << c.blueQuantum() << std::endl; *pixels = palette.Colors().at(tileData[actualTx][actualTy]); //std::cout << tileData[actualTx][actualTy] << std::endl; } pixels++; } } view.sync(); } } } return output; } }; struct SpriteSheet { int spriteindex = 0; int gfxPtr; std::vector<Sprite> sprites; void render(BufferView m3, PaletteSet& palettes, std::vector<FrameOutput>& frames) const { const Palette& palette = palettes.GetPalette(spriteindex); for (int i=0; i<sprites.size(); i++) { FrameOutput f = sprites[i].render(m3, palette, gfxPtr); frames.push_back(std::move(f)); } } }; class Bank { public: Bank(BufferView m3, const int baseAddr, const int gfxAddr) : baseAddr_(baseAddr), gfxAddr_(gfxAddr) { int numEntries = m3.ReadFourBytes(baseAddr); std::cout << numEntries << std::endl; for (int i = 0; i < numEntries; i++) { int sheetAddr = GetPointerToSheet(m3, i); if (sheetAddr == -1) continue; SpriteSheet ss; ss.spriteindex = i; ss.gfxPtr = GetGfxPointer(m3, i); m3.Seek(sheetAddr); m3.SeekAdd(8); unsigned short spriteCount = m3.ReadNextTwoBytes(); //std::cout << i << ":" << spriteCount << " at " << std::hex << sheetAddr << std::endl; for (int j=0; j<spriteCount; j++) { Sprite sprite; unsigned short subspriteCount = m3.ReadNextTwoBytes(); for (int k=0; k<subspriteCount; k++) { Subsprite subsprite; subsprite.y = static_cast<char>(m3.ReadNextByte()); subsprite.x = static_cast<char>(m3.ReadNextByte()); unsigned short ch = m3.ReadNextTwoBytes(); subsprite.tile = static_cast<unsigned short>(ch & 0x3FF); subsprite.flipH = (ch & 0x400) != 0; subsprite.flipV = (ch & 0x800) != 0; subsprite.objSize = static_cast<unsigned char>((ch >> 12) & 3); subsprite.objShape = static_cast<unsigned char>((ch >> 14) & 3); /*std::cout << subsprite.y << std::endl; std::cout << subsprite.x << std::endl; std::cout << subsprite.flipH << "," << subsprite.flipV << std::endl;*/ sprite.subsprites.push_back(std::move(subsprite)); } m3.SeekAdd(2); ss.sprites.push_back(std::move(sprite)); } spritesheets_[i] = std::move(ss); //if (i == 15) return; } } const std::map<int, SpriteSheet>& SpriteSheets() const { return spritesheets_; } private: int GetPointerToSheet(BufferView m3, int index) { int readAt = baseAddr_ + 4 + (index << 2); int a = m3.ReadFourBytes(readAt); //std::cout << readAt << " :: " << a << std::hex << std::endl; if (a == 0) return -1; return a + baseAddr_; } int GetGfxPointer(BufferView m3, int index) { return m3.ReadFourBytes(gfxAddr_ + 4 + (index << 2)) + gfxAddr_; } int baseAddr_; int gfxAddr_; std::map<int, SpriteSheet> spritesheets_; }; int main(int argc, char** argv) { if (argc < 3) { std::cout << "Usage: ./sprite_dumper [path to rom] {sheet IDs}" << std::endl; std::cout << "sheet IDs should be space separated references to the sheets to concatenate" << std::endl; std::cout << "the format of the ID is BankNum.SheetNum" << std::endl; return -1; } Magick::InitializeMagick(nullptr); Rom m3(argv[1]); PaletteSet palettes(m3.buffer()); Bank b1(m3.buffer(), 0x1A442A4, 0x14383E4); Bank b2(m3.buffer(), 0x1AE0638, 0x194BC30); Bank b3(m3.buffer(), 0x1AEE4C4, 0x1A012B8); Bank b4(m3.buffer(), 0x1AF1ED0, 0x1A36AA0); std::vector<FrameOutput> frames; for (int i=2; i<argc; i++) { std::stringstream argfmt; argfmt << argv[i]; int bankNum; char ch; int sheetNum; argfmt >> bankNum; argfmt >> ch; //. argfmt >> sheetNum; const Bank& bankToRead = [&](){ switch (bankNum) { case 0: return b1; case 1: return b2; case 2: return b3; case 3: return b4; default: throw std::invalid_argument("Invalid bank num: " + std::to_string(bankNum)); } }(); bankToRead.SpriteSheets().at(sheetNum).render(m3.buffer(), palettes, frames); } int maxWidth = 0; int maxHeight = 0; for (const FrameOutput& f : frames) { if (f.width > maxWidth) maxWidth = f.width; if (f.height > maxHeight) maxHeight = f.height; } const int FRAMES_PER_ROW = 10; int sheetWidth; int sheetHeight; std::ofstream datafile("out.txt"); datafile << maxWidth << "," << maxHeight << " cell size" << std::endl; datafile << FRAMES_PER_ROW << " frames per row" << std::endl; datafile << frames.size() << " frames" << std::endl; datafile << std::endl; if (frames.size() < FRAMES_PER_ROW) { sheetWidth = frames.size() * maxWidth; sheetHeight = maxHeight; } else { sheetWidth = FRAMES_PER_ROW * maxWidth; sheetHeight = (frames.size() / FRAMES_PER_ROW + 1) * maxHeight; } Magick::Image sheet(Magick::Geometry(sheetWidth, sheetHeight), "transparent"); for (int i=0; i<frames.size(); i++) { const FrameOutput& f = frames.at(i); sheet.composite(f.image, (i%FRAMES_PER_ROW)*maxWidth, (i/FRAMES_PER_ROW)*maxHeight, Magick::OverCompositeOp); datafile << f.width << "," << f.height << "," << f.centerX << "," << f.centerY << std::endl; } //Magick::Image im = b2.SpriteSheets().at(3).render(m3, palettes); sheet.magick("png"); sheet.write("out.png"); return 0; }