mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-06-25 22:18:30 +02:00
Note that level dir listing still uses plenty of STL (including the end product - the `LevelMetaData` struct - which, for the purposes of 2.3, is okay enough (2.4 should remove STL usage entirely)); it's just that the initial act of iterating over the levels directory no longer takes four or SIX(!!!) heap allocations (not counting reallocations and other heap allocations this patch does not remove), and no longer does any data marshalling. Like text splitting, and binary blob extra indice grabbing, the current approach that FILESYSTEM_getLevelDirFileNames() uses is a temporary std::vector of std::strings as a middleman to store all the filenames, and the game iterates over that std::vector to grab each level metadata. Except, it's even worse in this case, because PHYSFS_enumerateFiles() ALREADY does a heap allocation. Oh, and FILESYSTEM_getLevelDirFileNames() gets called two or three times. Yeah, let me explain: 1. FILESYSTEM_getLevelDirFileNames() calls PHYSFS_enumerateFiles(). 2. PHYSFS_enumerateFiles() allocates an array of pointers to arrays of chars on the heap. For each filename, it will: a. Allocate an array of chars for the filename. b. Reallocate the array of pointers to add the pointer to the above char array. (In this step, it also inserts the filename in alphabetically - without any further allocations, as far as I know - but this is a COMPLETELY unnecessary step, because we are going to sort the list of levels by ourselves via the metadata title in the end anyways.) 3. FILESYSTEM_getLevelDirFileNames() iterates over the PhysFS list, and allocates an std::vector on the heap to shove the list into. Then, for each filename, it will: a. Allocate an std::string, initialized to "levels/". b. Append the filename to the std::string above. This will most likely require a re-allocation. c. Duplicate the std::string - which requires allocating more memory again - to put it into the std::vector. (Compared to the PhysFS list above, the std::vector does less reallocations; it however will still end up reallocating a certain amount of times in the end.) 4. FILESYSTEM_getLevelDirFileNames() will free the PhysFS list. 5. Then to get the std::vector<std::string> back to the caller, we end up having to reallocate the std::vector again - reallocating every single std::string inside it, too - to give it back to the caller. And to top it all off, FILESYSTEM_getLevelDirFileNames() is guaranteed to either be called two times, or three times. This is because editorclass::getDirectoryData() will call editorclass::loadZips(), which will unconditionally call FILESYSTEM_getLevelDirFileNames(), then call it AGAIN if a zip was found. Then once the function returns, getDirectoryData() will still unconditionally call FILESYSTEM_getLevelDirFileNames(). This smells like someone bolting something on without regard for the whole picture of the system, but whatever; I can clean up their mess just fine. So, what do I do about this? Well, just like I did with text splitting and binary blob extras, make the final for-loop - the one that does the actual metadata parsing - more immediate. So how do I do that? Well, PhysFS has a function named PHYSFS_enumerate(). PHYSFS_enumerateFiles(), in fact, uses this function internally, and is basically just a wrapper with some allocation and alphabetization. PHYSFS_enumerate() takes in a pointer to a function, which it will call for every single entry that it iterates over. It also lets you pass in another arbitrary pointer that it leaves alone, which I use to pass through a function pointer that is the actual callback. So to clarify, there are two callbacks - one callback is passed through into another callback that gets passed through to PHYSFS_enumerate(). The callback that gets passed to PHYSFS_enumerate() is always the same, but the callback that gets passed through the callback can be different (if you look at the calling code, you can see that one caller passes through a normal level metadata callback; the other passes through a zip file callback). Furthermore, I've also cleaned it up so that if editorclass::loadZips() finds a zip file, it won't iterate over all the files in the levels directory a third time. Instead, the level directory only gets iterated over twice - once to check for zips, and another to load every level plus all zips; the second time is when all the heap allocations happen. And with that, level list loading now uses less STL templated stuff and much less heap allocations. Also, ed.directoryList basically has no reason to exist other than being a temporary std::vector, so I've removed it. This further decreases memory usage, depending on how many levels you have in your levels folder (I know that I usually have a lot and don't really ever clean it up, lol). Lastly, in the callback passed to PhysFS, `builtLocation` is actually no longer hardcoded to just the `levels` directory, since instead we now use the `origdir` variable that PhysFS passes us. So that's good, too.
665 lines
16 KiB
C++
665 lines
16 KiB
C++
#include <SDL.h>
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#include <stdio.h>
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#include "editor.h"
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#include "Enums.h"
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#include "Entity.h"
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#include "Exit.h"
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#include "FileSystemUtils.h"
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#include "Game.h"
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#include "Graphics.h"
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#include "Input.h"
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#include "KeyPoll.h"
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#include "Logic.h"
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#include "Map.h"
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#include "Music.h"
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#include "Network.h"
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#include "preloader.h"
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#include "Render.h"
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#include "RenderFixed.h"
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#include "Screen.h"
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#include "Script.h"
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#include "SoundSystem.h"
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#include "UtilityClass.h"
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scriptclass script;
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#if !defined(NO_CUSTOM_LEVELS)
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std::vector<edentities> edentity;
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editorclass ed;
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#endif
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UtilityClass help;
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Graphics graphics;
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musicclass music;
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Game game;
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KeyPoll key;
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mapclass map;
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entityclass obj;
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Screen gameScreen;
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static bool startinplaytest = false;
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static bool savefileplaytest = false;
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static int savex = 0;
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static int savey = 0;
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static int saverx = 0;
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static int savery = 0;
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static int savegc = 0;
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static int savemusic = 0;
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static std::string playassets;
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static std::string playtestname;
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static volatile Uint32 time_ = 0;
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static volatile Uint32 timePrev = 0;
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static volatile Uint32 accumulator = 0;
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static volatile Uint32 f_time = 0;
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static volatile Uint32 f_timePrev = 0;
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static inline Uint32 get_framerate(const int slowdown)
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{
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switch (slowdown)
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{
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case 30:
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return 34;
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case 24:
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return 41;
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case 18:
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return 55;
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case 12:
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return 83;
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}
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return 34;
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}
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static void inline deltaloop();
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static void inline fixedloop();
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static void cleanup();
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int main(int argc, char *argv[])
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{
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char* baseDir = NULL;
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char* assetsPath = NULL;
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for (int i = 1; i < argc; ++i)
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{
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#define ARG(name) (SDL_strcmp(argv[i], name) == 0)
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#define ARG_INNER(code) \
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if (i + 1 < argc) \
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{ \
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code \
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} \
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else \
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{ \
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printf("%s option requires one argument.\n", argv[i]); \
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VVV_exit(1); \
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}
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if (ARG("-renderer"))
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{
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ARG_INNER({
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i++;
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SDL_SetHintWithPriority(SDL_HINT_RENDER_DRIVER, argv[i], SDL_HINT_OVERRIDE);
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})
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}
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else if (ARG("-basedir"))
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{
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ARG_INNER({
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i++;
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baseDir = argv[i];
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})
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}
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else if (ARG("-assets"))
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{
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ARG_INNER({
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i++;
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assetsPath = argv[i];
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})
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}
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else if (ARG("-playing") || ARG("-p"))
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{
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ARG_INNER({
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i++;
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startinplaytest = true;
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playtestname = std::string("levels/");
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playtestname.append(argv[i]);
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playtestname.append(std::string(".vvvvvv"));
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})
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}
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else if (ARG("-playx") || ARG("-playy") ||
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ARG("-playrx") || ARG("-playry") ||
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ARG("-playgc") || ARG("-playmusic"))
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{
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ARG_INNER({
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savefileplaytest = true;
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int v = help.Int(argv[i+1]);
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if (ARG("-playx")) savex = v;
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else if (ARG("-playy")) savey = v;
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else if (ARG("-playrx")) saverx = v;
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else if (ARG("-playry")) savery = v;
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else if (ARG("-playgc")) savegc = v;
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else if (ARG("-playmusic")) savemusic = v;
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i++;
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})
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}
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else if (ARG("-playassets"))
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{
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ARG_INNER({
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i++;
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// Even if this is a directory, FILESYSTEM_mountassets() expects '.vvvvvv' on the end
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playassets = "levels/" + std::string(argv[i]) + ".vvvvvv";
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})
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}
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#undef ARG_INNER
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#undef ARG
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else
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{
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printf("Error: invalid option: %s\n", argv[i]);
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VVV_exit(1);
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}
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}
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if(!FILESYSTEM_init(argv[0], baseDir, assetsPath))
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{
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puts("Unable to initialize filesystem!");
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VVV_exit(1);
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}
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SDL_Init(
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SDL_INIT_VIDEO |
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SDL_INIT_AUDIO |
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SDL_INIT_JOYSTICK |
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SDL_INIT_GAMECONTROLLER
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);
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if (SDL_IsTextInputActive() == SDL_TRUE)
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{
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SDL_StopTextInput();
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}
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NETWORK_init();
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printf("\t\t\n");
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printf("\t\t\n");
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printf("\t\t VVVVVV\n");
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printf("\t\t\n");
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printf("\t\t\n");
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printf("\t\t 8888888888888888 \n");
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printf("\t\t88888888888888888888\n");
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printf("\t\t888888 8888 88\n");
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printf("\t\t888888 8888 88\n");
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printf("\t\t88888888888888888888\n");
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printf("\t\t88888888888888888888\n");
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printf("\t\t888888 88\n");
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printf("\t\t88888888 8888\n");
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printf("\t\t 8888888888888888 \n");
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printf("\t\t 88888888 \n");
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printf("\t\t 8888888888888888 \n");
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printf("\t\t88888888888888888888\n");
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printf("\t\t88888888888888888888\n");
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printf("\t\t88888888888888888888\n");
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printf("\t\t8888 88888888 8888\n");
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printf("\t\t8888 88888888 8888\n");
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printf("\t\t 888888888888 \n");
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printf("\t\t 8888 8888 \n");
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printf("\t\t 888888 888888 \n");
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printf("\t\t 888888 888888 \n");
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printf("\t\t 888888 888888 \n");
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printf("\t\t\n");
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printf("\t\t\n");
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//Set up screen
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// Load Ini
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graphics.init();
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game.init();
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// This loads music too...
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graphics.reloadresources();
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game.gamestate = PRELOADER;
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game.menustart = false;
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game.mainmenu = 0;
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// Initialize title screen to cyan
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graphics.titlebg.colstate = 10;
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map.nexttowercolour();
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map.ypos = (700-29) * 8;
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graphics.towerbg.bypos = map.ypos / 2;
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graphics.titlebg.bypos = map.ypos / 2;
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{
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// Prioritize unlock.vvv first (2.2 and below),
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// but settings have been migrated to settings.vvv (2.3 and up)
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ScreenSettings screen_settings;
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game.loadstats(&screen_settings);
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game.loadsettings(&screen_settings);
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gameScreen.init(screen_settings);
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}
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graphics.screenbuffer = &gameScreen;
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graphics.create_buffers(gameScreen.GetFormat());
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if (game.skipfakeload)
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game.gamestate = TITLEMODE;
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if (game.slowdown == 0) game.slowdown = 30;
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//Check to see if you've already unlocked some achievements here from before the update
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if (game.swnbestrank > 0){
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if(game.swnbestrank >= 1) game.unlockAchievement("vvvvvvsupgrav5");
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if(game.swnbestrank >= 2) game.unlockAchievement("vvvvvvsupgrav10");
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if(game.swnbestrank >= 3) game.unlockAchievement("vvvvvvsupgrav15");
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if(game.swnbestrank >= 4) game.unlockAchievement("vvvvvvsupgrav20");
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if(game.swnbestrank >= 5) game.unlockAchievement("vvvvvvsupgrav30");
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if(game.swnbestrank >= 6) game.unlockAchievement("vvvvvvsupgrav60");
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}
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if(game.unlock[5]) game.unlockAchievement("vvvvvvgamecomplete");
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if(game.unlock[19]) game.unlockAchievement("vvvvvvgamecompleteflip");
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if(game.unlock[20]) game.unlockAchievement("vvvvvvmaster");
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if (game.bestgamedeaths > -1) {
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if (game.bestgamedeaths <= 500) {
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game.unlockAchievement("vvvvvvcomplete500");
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}
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if (game.bestgamedeaths <= 250) {
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game.unlockAchievement("vvvvvvcomplete250");
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}
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if (game.bestgamedeaths <= 100) {
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game.unlockAchievement("vvvvvvcomplete100");
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}
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if (game.bestgamedeaths <= 50) {
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game.unlockAchievement("vvvvvvcomplete50");
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}
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}
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if(game.bestrank[0]>=3) game.unlockAchievement("vvvvvvtimetrial_station1_fixed");
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if(game.bestrank[1]>=3) game.unlockAchievement("vvvvvvtimetrial_lab_fixed");
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if(game.bestrank[2]>=3) game.unlockAchievement("vvvvvvtimetrial_tower_fixed");
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if(game.bestrank[3]>=3) game.unlockAchievement("vvvvvvtimetrial_station2_fixed");
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if(game.bestrank[4]>=3) game.unlockAchievement("vvvvvvtimetrial_warp_fixed");
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if(game.bestrank[5]>=3) game.unlockAchievement("vvvvvvtimetrial_final_fixed");
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obj.init();
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#if !defined(NO_CUSTOM_LEVELS)
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if (startinplaytest) {
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game.levelpage = 0;
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game.playcustomlevel = 0;
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game.playassets = playassets;
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game.menustart = true;
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LevelMetaData meta;
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if (ed.getLevelMetaData(playtestname, meta)) {
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ed.ListOfMetaData.clear();
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ed.ListOfMetaData.push_back(meta);
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} else {
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ed.loadZips();
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if (ed.getLevelMetaData(playtestname, meta)) {
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ed.ListOfMetaData.clear();
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ed.ListOfMetaData.push_back(meta);
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} else {
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printf("Level not found\n");
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VVV_exit(1);
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}
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}
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game.loadcustomlevelstats();
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game.customleveltitle=ed.ListOfMetaData[game.playcustomlevel].title;
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game.customlevelfilename=ed.ListOfMetaData[game.playcustomlevel].filename;
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if (savefileplaytest) {
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game.playx = savex;
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game.playy = savey;
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game.playrx = saverx;
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game.playry = savery;
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game.playgc = savegc;
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game.playmusic = savemusic;
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game.cliplaytest = true;
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script.startgamemode(23);
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} else {
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script.startgamemode(22);
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}
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graphics.fademode = 0;
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}
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#endif
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key.isActive = true;
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game.gametimer = 0;
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while(!key.quitProgram)
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{
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f_time = SDL_GetTicks();
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const Uint32 f_timetaken = f_time - f_timePrev;
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if (!game.over30mode && f_timetaken < 34)
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{
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const volatile Uint32 f_delay = 34 - f_timetaken;
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SDL_Delay(f_delay);
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f_time = SDL_GetTicks();
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}
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f_timePrev = f_time;
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timePrev = time_;
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time_ = SDL_GetTicks();
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deltaloop();
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}
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cleanup();
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return 0;
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}
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static void cleanup()
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{
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/* Order matters! */
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game.savestatsandsettings();
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gameScreen.destroy();
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graphics.grphx.destroy();
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graphics.destroy_buffers();
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graphics.destroy();
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music.destroy();
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NETWORK_shutdown();
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SDL_Quit();
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FILESYSTEM_deinit();
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}
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void VVV_exit(const int exit_code)
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{
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cleanup();
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exit(exit_code);
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}
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static void inline deltaloop()
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{
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//timestep limit to 30
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const float rawdeltatime = static_cast<float>(time_ - timePrev);
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accumulator += rawdeltatime;
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Uint32 timesteplimit;
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if (game.gamestate == EDITORMODE)
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{
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timesteplimit = 24;
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}
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else if (game.gamestate == GAMEMODE)
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{
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timesteplimit = get_framerate(game.slowdown);
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}
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else
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{
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timesteplimit = 34;
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}
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while (accumulator >= timesteplimit)
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{
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accumulator = SDL_fmodf(accumulator, timesteplimit);
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fixedloop();
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}
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const float alpha = game.over30mode ? static_cast<float>(accumulator) / timesteplimit : 1.0f;
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graphics.alpha = alpha;
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if (key.isActive)
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{
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switch (game.gamestate)
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{
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case PRELOADER:
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preloaderrender();
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break;
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#if !defined(NO_CUSTOM_LEVELS) && !defined(NO_EDITOR)
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case EDITORMODE:
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graphics.flipmode = false;
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editorrender();
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break;
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#endif
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case TITLEMODE:
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titlerender();
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break;
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case GAMEMODE:
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gamerender();
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break;
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case MAPMODE:
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maprender();
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break;
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case TELEPORTERMODE:
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teleporterrender();
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break;
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case GAMECOMPLETE:
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gamecompleterender();
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break;
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case GAMECOMPLETE2:
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gamecompleterender2();
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break;
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case CLICKTOSTART:
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help.updateglow();
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break;
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}
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gameScreen.FlipScreen();
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}
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}
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static void inline fixedloop()
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{
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// Update network per frame.
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NETWORK_update();
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key.Poll();
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if(key.toggleFullscreen)
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{
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gameScreen.toggleFullScreen();
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key.toggleFullscreen = false;
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key.keymap.clear(); //we lost the input due to a new window.
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if (game.glitchrunnermode)
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{
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game.press_left = false;
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game.press_right = false;
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game.press_action = true;
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game.press_map = false;
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}
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}
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if(!key.isActive)
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{
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Mix_Pause(-1);
|
|
Mix_PauseMusic();
|
|
|
|
if (!game.blackout)
|
|
{
|
|
FillRect(graphics.backBuffer, 0x00000000);
|
|
graphics.bprint(5, 110, "Game paused", 196 - help.glow, 255 - help.glow, 196 - help.glow, true);
|
|
graphics.bprint(5, 120, "[click to resume]", 196 - help.glow, 255 - help.glow, 196 - help.glow, true);
|
|
graphics.bprint(5, 220, "Press M to mute in game", 164 - help.glow, 196 - help.glow, 164 - help.glow, true);
|
|
graphics.bprint(5, 230, "Press N to mute music only", 164 - help.glow, 196 - help.glow, 164 - help.glow, true);
|
|
}
|
|
graphics.render();
|
|
gameScreen.FlipScreen();
|
|
//We are minimised, so lets put a bit of a delay to save CPU
|
|
SDL_Delay(100);
|
|
}
|
|
else
|
|
{
|
|
Mix_Resume(-1);
|
|
Mix_ResumeMusic();
|
|
game.gametimer++;
|
|
graphics.cutscenebarstimer();
|
|
|
|
switch(game.gamestate)
|
|
{
|
|
case PRELOADER:
|
|
preloaderinput();
|
|
preloaderrenderfixed();
|
|
break;
|
|
#if !defined(NO_CUSTOM_LEVELS) && !defined(NO_EDITOR)
|
|
case EDITORMODE:
|
|
//Input
|
|
editorinput();
|
|
////Logic
|
|
editorlogic();
|
|
|
|
editorrenderfixed();
|
|
break;
|
|
#endif
|
|
case TITLEMODE:
|
|
//Input
|
|
titleinput();
|
|
////Logic
|
|
titlelogic();
|
|
|
|
titlerenderfixed();
|
|
break;
|
|
case GAMEMODE:
|
|
// WARNING: If updating this code, don't forget to update Map.cpp mapclass::twoframedelayfix()
|
|
|
|
// Ugh, I hate this kludge variable but it's the only way to do it
|
|
if (script.dontrunnextframe)
|
|
{
|
|
script.dontrunnextframe = false;
|
|
}
|
|
else
|
|
{
|
|
script.run();
|
|
}
|
|
|
|
//Update old lerp positions of entities - has to be done BEFORE gameinput!
|
|
for (size_t i = 0; i < obj.entities.size(); i++)
|
|
{
|
|
obj.entities[i].lerpoldxp = obj.entities[i].xp;
|
|
obj.entities[i].lerpoldyp = obj.entities[i].yp;
|
|
}
|
|
|
|
gameinput();
|
|
gamerenderfixed();
|
|
gamelogic();
|
|
|
|
|
|
break;
|
|
case MAPMODE:
|
|
mapinput();
|
|
maplogic();
|
|
maprenderfixed();
|
|
break;
|
|
case TELEPORTERMODE:
|
|
if(game.useteleporter)
|
|
{
|
|
teleporterinput();
|
|
}
|
|
else
|
|
{
|
|
script.run();
|
|
gameinput();
|
|
}
|
|
maplogic();
|
|
maprenderfixed();
|
|
break;
|
|
case GAMECOMPLETE:
|
|
//Input
|
|
gamecompleteinput();
|
|
//Logic
|
|
gamecompletelogic();
|
|
|
|
gamecompleterenderfixed();
|
|
break;
|
|
case GAMECOMPLETE2:
|
|
//Input
|
|
gamecompleteinput2();
|
|
//Logic
|
|
gamecompletelogic2();
|
|
break;
|
|
case CLICKTOSTART:
|
|
break;
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//Screen effects timers
|
|
if (key.isActive && game.flashlight > 0)
|
|
{
|
|
game.flashlight--;
|
|
}
|
|
if (key.isActive && game.screenshake > 0)
|
|
{
|
|
game.screenshake--;
|
|
graphics.updatescreenshake();
|
|
}
|
|
|
|
if (graphics.screenbuffer->badSignalEffect)
|
|
{
|
|
UpdateFilter();
|
|
}
|
|
|
|
//We did editorinput, now it's safe to turn this off
|
|
key.linealreadyemptykludge = false;
|
|
|
|
//Mute button
|
|
if (key.isDown(KEYBOARD_m) && game.mutebutton<=0 && !key.textentry())
|
|
{
|
|
game.mutebutton = 8;
|
|
if (game.muted)
|
|
{
|
|
game.muted = false;
|
|
}
|
|
else
|
|
{
|
|
game.muted = true;
|
|
}
|
|
}
|
|
if(game.mutebutton>0)
|
|
{
|
|
game.mutebutton--;
|
|
}
|
|
|
|
if (key.isDown(KEYBOARD_n) && game.musicmutebutton <= 0 && !key.textentry())
|
|
{
|
|
game.musicmutebutton = 8;
|
|
game.musicmuted = !game.musicmuted;
|
|
}
|
|
if (game.musicmutebutton > 0)
|
|
{
|
|
game.musicmutebutton--;
|
|
}
|
|
|
|
if (game.muted)
|
|
{
|
|
Mix_VolumeMusic(0) ;
|
|
Mix_Volume(-1,0);
|
|
}
|
|
else
|
|
{
|
|
Mix_Volume(-1,MIX_MAX_VOLUME);
|
|
|
|
if (game.musicmuted)
|
|
{
|
|
Mix_VolumeMusic(0);
|
|
}
|
|
else
|
|
{
|
|
Mix_VolumeMusic(music.musicVolume);
|
|
}
|
|
}
|
|
|
|
if (key.resetWindow)
|
|
{
|
|
key.resetWindow = false;
|
|
gameScreen.ResizeScreen(-1, -1);
|
|
}
|
|
|
|
music.processmusic();
|
|
graphics.processfade();
|
|
game.gameclock();
|
|
}
|