Add Discord Game SDK support #1217
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| #include "MakeAndPlay.h" | ||
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| #ifndef MAKEANDPLAY | ||
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| #include <stdint.h> | ||
| #include <stdbool.h> | ||
| #include <SDL.h> | ||
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| #include "Vlogging.h" | ||
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| // Library includes | ||
| #include "discord_game_sdk.h" | ||
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| #if defined(_WIN32) | ||
| #define DISCORD_LIBRARY "discord_game_sdk.dll" | ||
| #elif defined(__APPLE__) | ||
| #define DISCORD_LIBRARY "libdiscord_game_sdk.dylib" | ||
| #elif defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__) | ||
| #define DISCORD_LIBRARY "libdiscord_game_sdk.so" | ||
| #else | ||
| #error DISCORD_LIBRARY: Unrecognized platform! | ||
| #endif | ||
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| #define DISCORD_CLIENT_ID 1315544357532729447 | ||
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| // TO TERRY/FLIBIT: You can create your own Discord instance at the Discord Developer Portal. This ID belongs to me, so just be aware that if my account was to get hacked, VVVVVV RPC would too. Use your own! | ||
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| struct DISCORD_application { | ||
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| struct IDiscordCore* core; | ||
| struct IDiscordActivityManager* activityMan; | ||
| } app; | ||
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| static struct DiscordActivity activity; | ||
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| static bool discordDetected = false; | ||
| static bool discordPostInit = false; | ||
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| static void* libHandle = NULL; | ||
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| #define FUNC_LIST \ | ||
| FOREACH_FUNC(enum EDiscordResult, DiscordCreate, (DiscordVersion, struct DiscordCreateParams*, struct IDiscordCore**)) | ||
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| #define FOREACH_FUNC(rettype, name, params) static rettype (*name) params = NULL; | ||
| FUNC_LIST | ||
| #undef FOREACH_FUNC | ||
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| bool DISCORD_REQUIRE(int x) | ||
| { | ||
| if (!discordDetected && discordPostInit) | ||
| { | ||
| return false; | ||
| } | ||
| if (x != DiscordResult_Ok) | ||
| { | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
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| static void ClearPointers(void) | ||
| { | ||
| SDL_UnloadObject(libHandle); | ||
| libHandle = NULL; | ||
| #define FOREACH_FUNC(rettype, name, params) name = NULL; | ||
| FUNC_LIST | ||
| #undef FOREACH_FUNC | ||
| } | ||
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| void DISCORD_shutdown(void) | ||
| { | ||
| if (libHandle != NULL) | ||
| { | ||
| app.core->destroy(app.core); | ||
| ClearPointers(); | ||
| } | ||
| } | ||
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| int32_t DISCORD_init(void) | ||
| { | ||
| #if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__HAIKU__) || defined(__DragonFly__) | ||
|
There was a problem hiding this comment. This should probably be rewritten to check for OSes that Discord does support, rather than ones it doesn't. |
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| return 0; | ||
| #endif | ||
| libHandle = SDL_LoadObject(DISCORD_LIBRARY); | ||
| if (libHandle == NULL) | ||
| { | ||
| vlog_info(DISCORD_LIBRARY " not found!"); | ||
| vlog_debug("Can't load object %s : %s\n", DISCORD_LIBRARY, SDL_GetError()); | ||
| return 0; | ||
| } | ||
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| #define FOREACH_FUNC(rettype, name, params) \ | ||
| name = (rettype (*) params) (intptr_t) SDL_LoadFunction(libHandle, #name); \ | ||
| if (!name) \ | ||
| { \ | ||
| vlog_error(DISCORD_LIBRARY " symbol " #name " not found!"); \ | ||
| ClearPointers(); \ | ||
| return 0; \ | ||
| } | ||
| FUNC_LIST | ||
| #undef FOREACH_FUNC | ||
| SDL_memset(&app, 0, sizeof(app)); | ||
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| struct DiscordCreateParams params; | ||
| params.client_id = DISCORD_CLIENT_ID; | ||
| params.flags = DiscordCreateFlags_NoRequireDiscord; | ||
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| if (!DISCORD_REQUIRE(DiscordCreate(DISCORD_VERSION, ¶ms, &app.core))) | ||
| { // Discord's API couldn't initialise, so just ignore it | ||
| discordPostInit = true; // even if it fails, set post init to true. | ||
| vlog_debug("Discord API failed to initialise!"); | ||
| discordDetected = false; | ||
| return 0; | ||
| } | ||
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| if (app.core == NULL) | ||
| { | ||
| discordPostInit = true; | ||
| vlog_debug("app.core == null. DiscordCreate failed with a positive result?\nCheck DISCORD_REQUIRE for bugs."); | ||
| discordDetected = false; | ||
| return 0; | ||
| } | ||
| discordPostInit = true; | ||
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| // Placeholder, is this really nesaccary | ||
| SDL_strlcpy(activity.assets.large_image, "vvvvvv", sizeof(activity.assets.large_image)); | ||
| SDL_strlcpy(activity.assets.large_text, "Outside Dimension VVVVVV", sizeof(activity.assets.large_text)); | ||
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| app.activityMan = app.core->get_activity_manager(app.core); | ||
| app.activityMan->update_activity(app.activityMan, &activity, NULL, NULL); | ||
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| discordDetected = true; | ||
| return 1; | ||
| } | ||
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| int32_t DISCORD_update(void) | ||
| { | ||
| if (libHandle == NULL) | ||
| { | ||
| // no Discord or just shutdown | ||
| return 0; | ||
| } | ||
| if (app.core == NULL || !discordDetected) | ||
| { | ||
| // No Discord | ||
| return 0; | ||
| } | ||
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| if (!DISCORD_REQUIRE(app.core->run_callbacks(app.core))) | ||
| { | ||
| // Something or other is wrong, but do we care? | ||
| return 0; | ||
| } | ||
| return 1; | ||
| } | ||
| void DISCORD_unlockAchievement(const char* name) | ||
| { | ||
| // No "achievements" in Discord | ||
| } | ||
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| void DISCORD_setRPC(const char* area, const char* roomname) | ||
| { | ||
| if (app.activityMan == NULL) | ||
| { | ||
| vlog_debug("No activityMan! - it\'s fine, we can recreate this" ); | ||
| app.activityMan = app.core->get_activity_manager(app.core); | ||
| } | ||
| if (SDL_strcmp(activity.state, roomname) != 0 || SDL_strcmp(activity.assets.large_text, area) != 0) | ||
| { | ||
| SDL_strlcpy(activity.state, roomname, sizeof(activity.state)); | ||
| SDL_strlcpy(activity.assets.large_image, "vvvvvv", sizeof(activity.assets.large_image)); | ||
| SDL_strlcpy(activity.assets.large_text, area, sizeof(activity.assets.large_text)); | ||
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| app.activityMan->update_activity(app.activityMan, &activity, NULL, NULL); | ||
| } | ||
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|
There was a problem hiding this comment. Newlines in this file seem generally inconsistent. This should probably be cleaned up. |
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| } | ||
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| #endif // MakeAndPlay | ||
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@TerryCavanagh, does this already exist...?
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For reference, the Discord docs do say this:
I wonder whether the reasons to use the ID they already have are good enough reasons to bother lol (maybe so it smoothly takes over the "Playing VVVVVV", "last played 2 days ago", etc that was already showing without rich presence?)
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@Daaaav @flibitijibibo I have sent a message to Discord Support to see if this is true for VVVVVV. Hopefully I get a response before the 15th anniversary of VVVVVV. (I'm hoping this will be released then)
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I'm sure an application already exists for VVVVVV, as it existed on the Discord Game Store back when that existed.
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We'll need to lock this in before we can merge, so whoever can find this number should patch this line ASAP
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The automatically assigned application ID is
491427544134975498, but this doesn't currently work for rich presence. I'm not sure if the Discord Store release had a separate application ID.