Bot library for Lua (botvars getter/setter, bot functions)

Summary

This branch exposes botvars_t, botcontroller_t and bot functions to Lua. It changes the following:

• Exposes the following variables:
  • botvars_t as part of player_t (as botvars, get/noset):
    • get/set: style, difficulty, diffincrease, rival, rubberband, itemdelay, itemconfirm, turnconfirm, spindashconfirm, respawnconfirm, roulettepriority, roulettetimeout
    • get: valid
  • botcontroller_t as part of sector_t (as botcontroller, get/noset):
    • get: valid, trick, flags, forceangle
• Exposes the following constants:
  • k_bot.h constants: MAXBOTDIFFICULTY, DIFFICULTBOT, BOTTURNCONFIRM, BOTSPINDASHCONFIRM, BOTRESPAWNCONFIRM and BOT_ITEM_DECISION_TIME
  • botStyle_e: BOT_STYLE_NORMAL, BOT_STYLE_STAY and BOT_STYLE__MAX
  • botItemPriority_e: BOT_ITEM_PR__FALLBACK, BOT_ITEM_PR_NEUTRAL, BOT_ITEM_PR_FRONTRUNNER, BOT_ITEM_PR_SPEED, BOT_ITEM_PR__OVERRIDES, BOT_ITEM_PR_RINGDEBT, BOT_ITEM_PR_POWER, BOT_ITEM_PR_SPB and BOT_ITEM_PR__MAX
  • textmapbotcontroller_t: TMBOT_NORUBBERBAND, TMBOT_NOCONTROL, TMBOT_FORCEDIR and TMBOT_FASTFALL
  • textmapbottrick_t: TMBOTTR_NONE, TMBOTTR_LEFT, TMBOTTR_RIGHT, TMBOTTR_UP and TMBOTTR_DOWN
• Exposes the following functions:
  • boolean K_PlayerUsesBotMovement(player_t player)
  • boolean K_BotCanTakeCut(player_t player)
  • botcontroller_t K_GetBotController(mobj_t mobj)
  • fixed_t K_BotMapModifier()
  • fixed_t K_BotRubberband(player_t player)
  • fixed_t K_UpdateRubberband(player_t player)
  • fixed_t K_DistanceOfLineFromPoint(fixed_t v1x, fixed_t v1y, fixed_t v2x, fixed_t v2y, fixed_t cx, fixed_t cy)
  • boolean, player_t K_AddBot(int/string skin, int difficulty, botStyle_e style) (boolean indicates whether the bot was created successfully. If true, the second returned value will be the bot player_t, otherwise it is nil).
  • void K_SetNameForBot(player_t player, string name)
• Creates the following Lua-only function:
  • void K_RemoveBot(player_t player)
• Creates the following hooks:
  • "PlayerUsesBotMovement": function(player_t player). Controls whether the given player will be using bot movement or not. return true for forced bot movement, return false to force remove bot movement. The podium sequence's bot movement cannot be overriden. player is read-only.
  • "BotJoin": function(player_t player). Triggers when a bot joins the game (GP, Match Race, Lua...), as well as when a bot gets replaced during GP.
• Fixes botvars.style not being part of G_PlayerReborn, as well as not being archived and unarchived before.

Testing

Testing environment: ringracers_botVarsLib.exe -console -skipintro -warp RR_TESTRUN +addfile botvars.lua

A script was used, botvars.lua, to test the following additions:

• It will print all exposed constants as described above.
• It includes a HUD hook that displays the values of all the botvars_t values, and if in a sector with a bot controller, then all of the applicable botcontroller_t values (from K_GetBotController), as well as the values from K_PlayerUsesBotMovement, K_BotCanTakeCut, K_BotRubberband and K_UpdateRubberband. Can by controlled by the botvarshuddebug cvar.
• It has a MapLoad that prints the complexity of the level using K_BotMapModifier
• It has a command addbot [skin] [difficulty] [style] [customname] that allows to create a bot with the specified parameters, with customname as an optional parameter.
• It has a command removebot [node] that removes a bot by node.
• It has a command changebotname [node] [name] to change a bot's name.
• It has a command lethargicplay that enables bot movement on the toggling player.
• It has a command setbotvalue [node] [variable] [value] to set a specific value on a bot's botvars variables.
• It has a command setallbotsvalue [variable] [value] to set a value to a variable in all bots' botvars.
• It has a console variable v1finish that disables bot movement on all players at the end of a race. (Note: it's likely just better to set the bot style to BOT_STYLE_STAY here - this is just a demonstration of the "PlayerUsesBotMovement" hook).

Changelog

• Exposed the botvars member from player_t, as well as various functions related to bots.
• Exposed the botcontroller member from sector_t (as well as being used as part of K_GetBotController(mobj_t mobj))
• Created new hook: PlayerUsesBotMovement: function(player_t player). Return true to force bot movement, return false to force disable bot movement.
• Created new hook: BotJoin: function(player_t player). Triggers when a bot joins the game or gets replaced in Grand Prix.
• Fixed a bot's style not being preserved between deaths, as well as not being saved before for netgames.