initial snake game plugin

.bin/build.sh

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+#!/usr/bin/env bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+source "$SCRIPT_DIR/log.sh"
+source "$SCRIPT_DIR/watch_fs.sh"
+
+log "lgrey" "Loaded scripts from the directory $SCRIPT_DIR"
+
+GIT_DIR=$(git rev-parse --show-toplevel)
+SRC_DIR="$GIT_DIR/src"
+INFO_TOML="$GIT_DIR/info.toml"
+PLUGINS_DIR=${PLUGINS_DIR:-$HOME/OpenplanetNext/Plugins}
+ZIP=${ZIP:-"$PROGRAMFILES/7-Zip/7z.exe"}
+
+PLUGIN_PRETTY_NAME="$(cat $INFO_TOML | dos2unix | grep '^name' | cut -f 2 -d '=' | tr -d '\"\r' | sed 's/^[ ]*//')"
+PLUGIN_VERSION="$(cat $INFO_TOML | dos2unix | grep '^version' | cut -f 2 -d '=' | tr -d '\"\r' | sed 's/^[ ]*//')"
+PLUGIN_NAME=$(echo "$PLUGIN_PRETTY_NAME" | tr -d '(),:;'\''"' | tr 'A-Z ' 'a-z-')
+PLUGIN_BUILD_DIR="$GIT_DIR/dist"
+PLUGIN_BUILD_NAME="$PLUGIN_BUILD_DIR/$PLUGIN_NAME-$PLUGIN_VERSION.op"
+PLUGIN_DIRTY_FLAG="$PLUGIN_BUILD_DIR/dirty"
+
+WATCH=false
+CI=false
+POSITIONAL_ARGS=()
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -w|--watch)
+      WATCH=true
+      shift
+      ;;
+    --ci)
+      CI=true
+      shift
+      ;;
+    -*|--*)
+      log "red" "Unknown option $1. Exiting."
+      exit 1
+      ;;
+    *)
+      POSITIONAL_ARGS+=("$1")
+      shift
+      ;;
+  esac
+done
+
+set -- "${POSITIONAL_ARGS[@]}"
+
+function publish() {
+  if ! $CI; then
+    local busy=true
+    log "lgrey" "Waiting to publish when not busy.. Stop/Unload the plugin."
+    while $busy; do
+      cp $PLUGIN_BUILD_NAME $PLUGINS_DIR 2> /dev/null && busy=false
+      sleep 1
+    done
+    log "green" "Copied build to plugins directory: $PLUGINS_DIR"
+  fi
+}
+
+function publish_repeat() {
+  while [[ true ]]; do
+    publish
+    watch_fs $PLUGIN_DIRTY_FLAG
+  done
+}
+
+function build() {
+  log "white" "Running build script for plugin: $PLUGIN_PRETTY_NAME v$PLUGIN_VERSION"
+
+  if ! test -d $PLUGIN_BUILD_DIR; then
+    mkdir $PLUGIN_BUILD_DIR
+  fi
+
+  if test -f $PLUGIN_BUILD_NAME; then
+    rm -f $PLUGIN_BUILD_NAME
+  fi
+
+  "$ZIP" a -mx1 -tzip $PLUGIN_BUILD_NAME $INFO_TOML $SRC_DIR
+  log "lgreen" "Build complete: $PLUGIN_BUILD_NAME"
+  echo "$(date)" > $PLUGIN_DIRTY_FLAG
+}
+
+build
+if $WATCH; then
+  publish_repeat &
+  while [[ true ]]; do
+    watch_fs $SRC_DIR
+    build
+  done
+else
+  publish &
+fi
+
+if ps -p $! > /dev/null; then
+  wait $!
+fi

.bin/log.sh

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+#!/usr/bin/env bash
+
+function log() {
+  if [[ "$#" -eq 0  || "$#" -gt 2 ]]; then return
+  fi
+
+  local color=$1
+  local text=$2
+
+  local esc="\e["
+  local reset="${esc}39m"
+
+  local black="${esc}30m"
+  local red="${esc}31m"
+  local green="${esc}32m"
+  local yellow="${esc}33m"
+  local blue="${esc}34m"
+  local magenta="${esc}35m"
+  local cyan="${esc}36m"
+  local lightgrey="${esc}37m"
+  local darkgrey="${esc}90m"
+  local lightred="${esc}91m"
+  local lightgreen="${esc}92m"
+  local lightyellow="${esc}93m"
+  local lightblue="${esc}94m"
+  local lightmagenta="${esc}95m"
+  local lightcyan="${esc}96m"
+  local white="${esc}97m"
+
+  case ${color} in
+    "black") color=${black}
+      ;;
+    "red") color=${red}
+      ;;
+    "green") color=${green}
+      ;;
+    "yellow") color=${yellow}
+      ;;
+    "blue") color=${blue}
+      ;;
+    "magenta") color=${magenta}
+      ;;
+    "cyan") color=${cyan}
+      ;;
+    "lgrey") color=${lightgrey}
+      ;;
+    "dgrey") color=${darkgrey}
+      ;;
+    "lred") color=${lightred}
+      ;;
+    "lgreen") color=${lightgreen}
+      ;;
+    "lyellow") color=${lightyellow}
+      ;;
+    "lblue") color=${lightblue}
+      ;;
+    "lmagenta") color=${lightmagenta}
+      ;;
+    "lcyan") color=${lightcyan}
+      ;;
+    "white") color=${white}
+      ;;
+    *) echo -ne "${red}Unknown text color:${reset}"
+      ;;
+  esac
+
+  echo -e "${color}${text}${reset}"
+}

.bin/watch_fs.sh

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+#!/usr/bin/env bash
+
+function watch_fs() {
+  if [[ "$#" -eq 0  || "$#" -gt 1 ]]; then return
+  fi
+
+  local dir=$1
+  local chsum1=""
+
+  log "white" "Watching $dir for changes..."
+
+  while [[ true ]]; do
+    chsum2="$(find "$dir" -type f -exec md5sum {} \;)"
+    if [[ $chsum1 != $chsum2 ]] ; then           
+      if [ -n "$chsum1" ]; then
+        return
+      fi
+      chsum1=$chsum2
+    fi
+    sleep 1
+  done
+}

.gitignore

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+*.zip
+*.op
+dist/

LICENSE

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+MIT License
+
+Copyright (c) 2024 Dan Whitacre
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

info.toml

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+[meta]
+name = "Snake"
+author = "DanOnTheMoon"
+category = "Game"
+version = "1.0.0"
+siteid = 510

src/Apple.as

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+class Apple {
+    vec2 position;
+
+    Apple() {
+        this.Respawn();
+    }
+
+    void Respawn() {
+        position = vec2(Math::Rand(0, (Draw::GetWidth() - 1) / g_gridSize), Math::Rand(0, (Draw::GetHeight() - 1)) / g_gridSize);
+    }
+}

src/GameController.as

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+class GameController {
+    bool running;
+    Snake@ snake;
+    Apple@ apple;
+
+    GameController() {
+        running = false;
+        @snake = @Snake();
+        @apple = @Apple();
+    }
+
+    void StartGame() {
+        if (running) return;
+        LogTrace("Game started");
+        running = true;
+        snake = Snake();
+        apple.Respawn();
+    }
+
+    void StopGame() {
+        if (!running) return;
+        LogTrace("Game stopped");
+        running = false;
+        if (S_Snake_LastScore > S_Snake_HighScore) {
+            S_Snake_HighScore = S_Snake_LastScore;
+            NotifySuccess("New high score! " + Text::Format("%d", S_Snake_HighScore));
+        }
+    }
+
+    void Update() {
+        if (!running) return;
+
+        LogTrace("Snake position: " + Text::Format("%f", snake.segments[0].position.x) + "," + Text::Format("%f", snake.segments[0].position.y));
+        LogTrace("Apple position: " + Text::Format("%f", apple.position.x) + "," + Text::Format("%f", apple.position.y));
+
+        snake.Move();
+
+        if (snake.segments[0].position == apple.position) {
+            snake.Grow();
+            apple.Respawn();
+            LogTrace("Got apple! Score: " + Text::Format("%d", S_Snake_LastScore));
+        }
+
+        if (!snake.alive) {
+            NotifyInfo("You died! Score: " + Text::Format("%d", S_Snake_LastScore));
+            StopGame();
+        }
+    }
+
+    void Draw() {
+        if (S_Display_HideWithIFace && !UI::IsGameUIVisible()) return;
+        if (S_Display_HideWithOverlay && !UI::IsOverlayShown()) return;
+        if (!S_Display_Visible) return;
+
+        if (!running) return;
+
+        DrawApple(apple);
+        DrawSnake(snake);
+    }
+
+    void HandleInput(VirtualKey key) {
+        if (!running) {
+            if (key == S_Snake_StartGameKey) StartGame();
+            return;
+        }
+
+        if (key == S_Snake_LeftKey) snake.ChangeDirection(vec2(-1, 0));
+        else if (key == S_Snake_RightKey) snake.ChangeDirection(vec2(1, 0));
+        else if (key == S_Snake_UpKey) snake.ChangeDirection(vec2(0, -1));
+        else if (key == S_Snake_DownKey) snake.ChangeDirection(vec2(0, 1));
+    }
+}

src/Interface.as

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+void DrawSnake(Snake@ snake) {
+    nvg::FillColor(vec4(0, 255, 0, 255));
+
+    for (uint i = 0; i < snake.segments.Length; i++) {
+        auto segment = snake.segments[i];
+        nvg::BeginPath();
+        nvg::Rect(segment.position.x * g_gridSize, segment.position.y * g_gridSize, g_gridSize, g_gridSize);
+        nvg::Fill();
+    }
+}
+
+void DrawApple(Apple@ apple) {
+    nvg::FillColor(vec4(255, 0, 0, 255));
+
+    nvg::BeginPath();
+    nvg::Rect(apple.position.x * g_gridSize, apple.position.y * g_gridSize, g_gridSize, g_gridSize);
+    nvg::Fill();
+}

src/Log.as

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+void LogTrace(const string &in msg) {
+    if (S_Advanced_DevLog) {
+        trace(msg);
+    }
+}
+
+void LogInfo(const string &in msg) {
+    trace(msg);
+}
+
+void LogWarning(const string &in msg) {
+    warn(msg);
+}
+
+void LogError(const string &in msg) {
+    error(msg);
+}