mirror of
https://github.com/vitorpamplona/amethyst.git
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Claude
8f6528482b
doomgeneric compiled to wasm32-wasi plus the Freedoom Phase 1 IWAD, packed into one self-contained index.html that publishes as a NIP-5D napplet and runs inside Amethyst's existing sandbox and CSP unchanged. - build.sh: pinned wasi-sdk, Freedoom and doomgeneric; reproducible artifact hash. IWAD=/TITLE= swap in another IWAD. - The page supplies a WASI in-memory file system, the frame buffer, keyboard, touch and gamepad input, Web Audio sound effects, a small MIDI synth for the music, and keeps saves in window.napplet.storage. - doomgeneric.patch makes the screen melt non-blocking and clears the frame buffer before the first melt. - doom.test.mjs plays it in headless Chromium inside the production shell.html, shim.js and CSP: boot, music, gameplay, save and reload through storage, denied and undeclared storage. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NQ76C3uhMzzWRfB6NNxYzf
116 lines
5.1 KiB
Bash
Executable File
116 lines
5.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Builds the Freedoom napplet: doomgeneric compiled to wasm32-wasi with wasi-sdk, plus the
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# Freedoom Phase 1 IWAD, packed into one self-contained index.html.
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#
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# tools/napplet-doom/build.sh # -> tools/napplet-doom/build/index.html
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# IWAD=~/doom1.wad TITLE=Doom tools/napplet-doom/build.sh # another IWAD you may redistribute
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#
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# Every input is pinned (a git commit or a sha256), so the same inputs give the same artifact
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# hash, and anyone can rebuild a published napplet and compare its `x` tag.
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set -euo pipefail
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HERE="$(cd "$(dirname "$0")" && pwd)"
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WORK="${WORK:-$HERE/build}"
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OUT="${OUT:-$WORK/index.html}"
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DOOMGENERIC_REPO=https://github.com/ozkl/doomgeneric
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DOOMGENERIC_COMMIT=e257a09527062bfb986b6e5e0780839b6cbd5b71
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FREEDOOM_VERSION=0.13.0
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FREEDOOM_SHA256=3f9b264f3e3ce503b4fb7f6bdcb1f419d93c7b546f4df3e874dd878db9688f59
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WASI_SDK_VERSION=25
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case "$(uname -s)-$(uname -m)" in
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Linux-x86_64) WASI_SDK_HOST=x86_64-linux WASI_SDK_SHA256=52640dde13599bf127a95499e61d6d640256119456d1af8897ab6725bcf3d89c ;;
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Linux-aarch64 | Linux-arm64) WASI_SDK_HOST=arm64-linux WASI_SDK_SHA256=47fccad8b2498f2239e05e1115c3ffc652bf37e7de2f88fb64b2d663c976ce2d ;;
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Darwin-x86_64) WASI_SDK_HOST=x86_64-macos WASI_SDK_SHA256=55e3ff3fee1a15678a16eeccba0129276c9f6be481bc9c283e7f9f65bf055c11 ;;
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Darwin-arm64) WASI_SDK_HOST=arm64-macos WASI_SDK_SHA256=e1e529ea226b1db0b430327809deae9246b580fa3cae32d31c82dfe770233587 ;;
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*) echo "No pinned wasi-sdk for $(uname -s)-$(uname -m)" >&2; exit 1 ;;
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esac
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sha256() {
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if command -v sha256sum > /dev/null; then sha256sum "$1" | cut -d' ' -f1; else shasum -a 256 "$1" | cut -d' ' -f1; fi
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}
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# fetch URL FILE SHA256: download once, then always verify.
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fetch() {
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if [ ! -f "$2" ]; then
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echo "Downloading $1"
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curl -fsSL -o "$2.part" "$1"
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mv "$2.part" "$2"
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fi
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local actual
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actual="$(sha256 "$2")"
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if [ "$actual" != "$3" ]; then
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echo "sha256 mismatch for $2: expected $3, got $actual" >&2
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exit 1
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fi
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}
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mkdir -p "$WORK"
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cd "$WORK"
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# ---- Toolchain -------------------------------------------------------------------------------
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SDK_DIR="wasi-sdk-$WASI_SDK_VERSION.0-$WASI_SDK_HOST"
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fetch "https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-$WASI_SDK_VERSION/$SDK_DIR.tar.gz" \
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"$SDK_DIR.tar.gz" "$WASI_SDK_SHA256"
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[ -d "$SDK_DIR" ] || tar xzf "$SDK_DIR.tar.gz"
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CC="$WORK/$SDK_DIR/bin/clang"
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SYSROOT="$WORK/$SDK_DIR/share/wasi-sysroot"
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# ---- IWAD ------------------------------------------------------------------------------------
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# Freedoom by default. IWAD=path swaps in another one; whether you may publish it is up to you.
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if [ -n "${IWAD:-}" ]; then
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WAD="$IWAD"
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TITLE="${TITLE:-Doom}"
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else
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fetch "https://github.com/freedoom/freedoom/releases/download/v$FREEDOOM_VERSION/freedoom-$FREEDOOM_VERSION.zip" \
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"freedoom-$FREEDOOM_VERSION.zip" "$FREEDOOM_SHA256"
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unzip -q -o "freedoom-$FREEDOOM_VERSION.zip" "freedoom-$FREEDOOM_VERSION/freedoom1.wad" "freedoom-$FREEDOOM_VERSION/COPYING.txt"
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WAD="$WORK/freedoom-$FREEDOOM_VERSION/freedoom1.wad"
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TITLE="${TITLE:-Freedoom}"
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fi
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# ---- Engine ----------------------------------------------------------------------------------
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if [ ! -d doomgeneric/.git ]; then
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git init -q doomgeneric
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git -C doomgeneric remote add origin "$DOOMGENERIC_REPO"
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fi
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git -C doomgeneric fetch -q --depth 1 origin "$DOOMGENERIC_COMMIT"
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git -C doomgeneric checkout -q --force FETCH_HEAD
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git -C doomgeneric clean -q -fdx
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git -C doomgeneric apply "$HERE/src/doomgeneric.patch"
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SRC="$WORK/doomgeneric/doomgeneric"
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# The engine sources of doomgeneric's Emscripten build, minus its SDL front end and SDL sound.
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ENGINE="dummy am_map doomdef doomstat dstrings d_event d_items d_iwad d_loop d_main d_mode d_net
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f_finale f_wipe g_game hu_lib hu_stuff info i_cdmus i_endoom i_joystick i_scale i_sound i_system
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i_timer memio m_argv m_bbox m_cheat m_config m_controls m_fixed m_menu m_misc m_random p_ceilng
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p_doors p_enemy p_floor p_inter p_lights p_map p_maputl p_mobj p_plats p_pspr p_saveg p_setup
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p_sight p_spec p_switch p_telept p_tick p_user r_bsp r_data r_draw r_main r_plane r_segs r_sky
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r_things sha1 sounds statdump st_lib st_stuff s_sound tables v_video wi_stuff w_checksum w_file
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w_main w_wad z_zone w_file_stdc i_input i_video doomgeneric mus2mid"
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# i_sound.c includes SDL_mixer.h under FEATURE_SOUND without using it.
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mkdir -p stub obj
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: > stub/SDL_mixer.h
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CFLAGS=(--target=wasm32-wasip1 "--sysroot=$SYSROOT" -O2 -w
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-DFEATURE_SOUND -DDOOMGENERIC_RESX=320 -DDOOMGENERIC_RESY=200
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-D_WASI_EMULATED_SIGNAL -D_WASI_EMULATED_PROCESS_CLOCKS
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-I"$WORK/stub" -I"$SRC")
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rm -f obj/*.o
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echo "Compiling doomgeneric ($DOOMGENERIC_COMMIT)"
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for name in $ENGINE; do
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"$CC" "${CFLAGS[@]}" -c "$SRC/$name.c" -o "obj/$name.o"
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done
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"$CC" "${CFLAGS[@]}" -Wall -c "$HERE/src/doomgeneric_napplet.c" -o obj/doomgeneric_napplet.o
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# A reactor: the page calls _initialize, then dg_start and dg_tick, instead of a blocking main().
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"$CC" --target=wasm32-wasip1 "--sysroot=$SYSROOT" -O2 -mexec-model=reactor \
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-lwasi-emulated-signal -lwasi-emulated-process-clocks \
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obj/*.o -o doom.wasm
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python3 "$HERE/assemble.py" "$HERE/src/index.template.html" doom.wasm "$WAD" "$OUT" "$TITLE"
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