Implement command-line playtesting (#163)

desktop_version/src/FileSystemUtils.cpp

@@ -7,6 +7,10 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <iterator>
+#include <algorithm>
+#include <iostream>
+
 #include <SDL.h>
 #include <physfs.h>
 
@@ -144,6 +148,28 @@ char *FILESYSTEM_getUserLevelDirectory()
 void FILESYSTEM_loadFileToMemory(const char *name, unsigned char **mem,
                                  size_t *len, bool addnull)
 {
+	if (strcmp(name, "levels/special/stdin.vvvvvv") == 0) {
+		// this isn't *technically* necessary when piping directly from a file, but checking for that is annoying
+		static std::vector<char> STDIN_BUFFER;
+		static bool STDIN_LOADED = false;
+		if (!STDIN_LOADED) {
+			std::istreambuf_iterator<char> begin(std::cin), end;
+			STDIN_BUFFER.assign(begin, end);
+			STDIN_BUFFER.push_back(0); // there's no observable change in behavior if addnull is always true, but not vice versa
+			STDIN_LOADED = true;
+		}
+
+		size_t length = STDIN_BUFFER.size() - 1;
+		if (len != NULL) {
+			*len = length;
+		}
+
+		++length;
+		*mem = static_cast<unsigned char*>(malloc(length)); // STDIN_BUFFER.data() causes double-free
+		std::copy(STDIN_BUFFER.begin(), STDIN_BUFFER.end(), reinterpret_cast<char*>(*mem));
+		return;
+	}
+
 	PHYSFS_File *handle = PHYSFS_openRead(name);
 	if (handle == NULL)
 	{

desktop_version/src/Game.cpp

@@ -373,6 +373,13 @@ void Game::init(void)
 
     skipfakeload = false;
 
+    cliplaytest = false;
+    playx = 0;
+    playy = 0;
+    playrx = 0;
+    playry = 0;
+    playgc = 0;
+
     /* Terry's Patrons... */
     superpatrons.push_back("Anders Ekermo");
     superpatrons.push_back("Andreas K|mper");
@@ -5154,6 +5161,15 @@ void Game::loadquick()
 
 void Game::customloadquick(std::string savfile)
 {
+    if (cliplaytest) {
+        savex = playx;
+        savey = savey;
+        saverx = playrx;
+        savery = playry;
+        savegc = playgc;
+        return;
+    }
+
     std::string levelfile = savfile.substr(7);
     TiXmlDocument doc;
     if (!FILESYSTEM_loadTiXmlDocument(("saves/"+levelfile+".vvv").c_str(), &doc)) return;

desktop_version/src/Game.h

@@ -314,6 +314,13 @@ public:
     std::vector<SDL_GameControllerButton> controllerButton_esc;
 
     bool skipfakeload;
+
+    bool cliplaytest;
+    int playx;
+    int playy;
+    int playrx;
+    int playry;
+    int playgc;
 };
 
 extern Game game;

desktop_version/src/main.cpp

@@ -44,6 +44,17 @@ KeyPoll key;
 mapclass map;
 entityclass obj;
 
+bool startinplaytest = false;
+bool savefileplaytest = false;
+int savex = 0;
+int savey = 0;
+int saverx = 0;
+int savery = 0;
+int savegc = 0;
+int savemusic = 0;
+
+std::string playtestname;
+
 int main(int argc, char *argv[])
 {
     char* baseDir = NULL;
@@ -59,6 +70,40 @@ int main(int argc, char *argv[])
         } else if (strcmp(argv[i], "-assets") == 0) {
             ++i;
             assetsPath = argv[i];
+        } else if (strcmp(argv[i], "-playing") == 0 || strcmp(argv[i], "-p") == 0) {
+            if (i + 1 < argc) {
+                startinplaytest = true;
+                i++;
+                playtestname = std::string("levels/");
+                playtestname.append(argv[i]);
+                playtestname.append(std::string(".vvvvvv"));
+            } else {
+                printf("-playing option requires one argument.\n");
+                return 1;
+            }
+        } else if (strcmp(argv[i], "-playx") == 0 ||
+                strcmp(argv[i], "-playy") == 0 ||
+                strcmp(argv[i], "-playrx") == 0 ||
+                strcmp(argv[i], "-playry") == 0 ||
+                strcmp(argv[i], "-playgc") == 0 ||
+                strcmp(argv[i], "-playmusic") == 0) {
+            if (i + 1 < argc) {
+                savefileplaytest = true;
+                int v = std::atoi(argv[i+1]);
+                if (strcmp(argv[i], "-playx") == 0) savex = v;
+                else if (strcmp(argv[i], "-playy") == 0) savey = v;
+                else if (strcmp(argv[i], "-playrx") == 0) saverx = v;
+                else if (strcmp(argv[i], "-playry") == 0) savery = v;
+                else if (strcmp(argv[i], "-playgc") == 0) savegc = v;
+                else if (strcmp(argv[i], "-playmusic") == 0) savemusic = v;
+                i++;
+            } else {
+                printf("-playing option requires one argument.\n");
+                return 1;
+            }
+        }
+        if (std::string(argv[i]) == "-renderer") {
+            SDL_SetHintWithPriority(SDL_HINT_RENDER_DRIVER, argv[2], SDL_HINT_OVERRIDE);
         }
     }
 
@@ -152,7 +197,6 @@ int main(int argc, char *argv[])
     FillRect(graphics.footerbuffer, SDL_MapRGB(fmt, 0, 0, 0));
     graphics.Makebfont();
 
-
     graphics.foregroundBuffer =  SDL_CreateRGBSurface(SDL_SWSURFACE ,320 ,240 ,fmt->BitsPerPixel,fmt->Rmask,fmt->Gmask,fmt->Bmask,fmt->Amask  );
     SDL_SetSurfaceBlendMode(graphics.foregroundBuffer, SDL_BLENDMODE_NONE);
 
@@ -229,6 +273,41 @@ int main(int argc, char *argv[])
 
     obj.init();
 
+    if (startinplaytest) {
+        game.levelpage = 0;
+        game.playcustomlevel = 0;
+
+        ed.directoryList.clear();
+        ed.directoryList.push_back(playtestname);
+
+        LevelMetaData meta;
+        if (ed.getLevelMetaData(playtestname, meta)) {
+            ed.ListOfMetaData.clear();
+            ed.ListOfMetaData.push_back(meta);
+        } else {
+            printf("Level not found\n");
+            return 1;
+        }
+
+        game.loadcustomlevelstats();
+        game.customleveltitle=ed.ListOfMetaData[game.playcustomlevel].title;
+        game.customlevelfilename=ed.ListOfMetaData[game.playcustomlevel].filename;
+        if (savefileplaytest) {
+            game.playx = savex;
+            game.playy = savey;
+            game.playrx = saverx;
+            game.playry = savery;
+            game.playgc = savegc;
+            game.cliplaytest = true;
+            music.play(savemusic);
+            script.startgamemode(23);
+        } else {
+            script.startgamemode(22);
+        }
+
+        graphics.fademode = 0;
+    }
+
     volatile Uint32 time, timePrev = 0;
     game.infocus = true;
     key.isActive = true;