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+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Quake III Arena source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+//
+
+/*****************************************************************************
+ * name: be_ai_move.h
+ *
+ * desc: movement AI
+ *
+ * $Archive: /source/code/botlib/be_ai_move.h $
+ *
+ *****************************************************************************/
+
+//movement types
+#define MOVE_WALK 1
+#define MOVE_CROUCH 2
+#define MOVE_JUMP 4
+#define MOVE_GRAPPLE 8
+#define MOVE_ROCKETJUMP 16
+#define MOVE_BFGJUMP 32
+//move flags
+#define MFL_BARRIERJUMP 1 //bot is performing a barrier jump
+#define MFL_ONGROUND 2 //bot is in the ground
+#define MFL_SWIMMING 4 //bot is swimming
+#define MFL_AGAINSTLADDER 8 //bot is against a ladder
+#define MFL_WATERJUMP 16 //bot is waterjumping
+#define MFL_TELEPORTED 32 //bot is being teleported
+#define MFL_GRAPPLEPULL 64 //bot is being pulled by the grapple
+#define MFL_ACTIVEGRAPPLE 128 //bot is using the grapple hook
+#define MFL_GRAPPLERESET 256 //bot has reset the grapple
+#define MFL_WALK 512 //bot should walk slowly
+// move result flags
+#define MOVERESULT_MOVEMENTVIEW 1 //bot uses view for movement
+#define MOVERESULT_SWIMVIEW 2 //bot uses view for swimming
+#define MOVERESULT_WAITING 4 //bot is waiting for something
+#define MOVERESULT_MOVEMENTVIEWSET 8 //bot has set the view in movement code
+#define MOVERESULT_MOVEMENTWEAPON 16 //bot uses weapon for movement
+#define MOVERESULT_ONTOPOFOBSTACLE 32 //bot is ontop of obstacle
+#define MOVERESULT_ONTOPOF_FUNCBOB 64 //bot is ontop of a func_bobbing
+#define MOVERESULT_ONTOPOF_ELEVATOR 128 //bot is ontop of an elevator (func_plat)
+#define MOVERESULT_BLOCKEDBYAVOIDSPOT 256 //bot is blocked by an avoid spot
+//
+#define MAX_AVOIDREACH 1
+#define MAX_AVOIDSPOTS 32
+// avoid spot types
+#define AVOID_CLEAR 0 //clear all avoid spots
+#define AVOID_ALWAYS 1 //avoid always
+#define AVOID_DONTBLOCK 2 //never totally block
+// restult types
+#define RESULTTYPE_ELEVATORUP 1 //elevator is up
+#define RESULTTYPE_WAITFORFUNCBOBBING 2 //waiting for func bobbing to arrive
+#define RESULTTYPE_BADGRAPPLEPATH 4 //grapple path is obstructed
+#define RESULTTYPE_INSOLIDAREA 8 //stuck in solid area, this is bad
+
+//structure used to initialize the movement state
+//the or_moveflags MFL_ONGROUND, MFL_TELEPORTED and MFL_WATERJUMP come from the playerstate
+typedef struct bot_initmove_s
+{
+ vec3_t origin; //origin of the bot
+ vec3_t velocity; //velocity of the bot
+ vec3_t viewoffset; //view offset
+ int entitynum; //entity number of the bot
+ int client; //client number of the bot
+ float thinktime; //time the bot thinks
+ int presencetype; //presencetype of the bot
+ vec3_t viewangles; //view angles of the bot
+ int or_moveflags; //values ored to the movement flags
+} bot_initmove_t;
+
+//NOTE: the ideal_viewangles are only valid if MFL_MOVEMENTVIEW is set
+typedef struct bot_moveresult_s
+{
+ int failure; //true if movement failed all together
+ int type; //failure or blocked type
+ int blocked; //true if blocked by an entity
+ int blockentity; //entity blocking the bot
+ int traveltype; //last executed travel type
+ int flags; //result flags
+ int weapon; //weapon used for movement
+ vec3_t movedir; //movement direction
+ vec3_t ideal_viewangles; //ideal viewangles for the movement
+} bot_moveresult_t;
+
+#define bot_moveresult_t_cleared(x) bot_moveresult_t (x) = {0, 0, 0, 0, 0, 0, 0, {0, 0, 0}, {0, 0, 0}}
+
+typedef struct bot_avoidspot_s
+{
+ vec3_t origin;
+ float radius;
+ int type;
+} bot_avoidspot_t;
+
+//resets the whole move state
+void BotResetMoveState(int movestate);
+//moves the bot to the given goal
+void BotMoveToGoal(bot_moveresult_t *result, int movestate, bot_goal_t *goal, int travelflags);
+//moves the bot in the specified direction using the specified type of movement
+int BotMoveInDirection(int movestate, vec3_t dir, float speed, int type);
+//reset avoid reachability
+void BotResetAvoidReach(int movestate);
+//resets the last avoid reachability
+void BotResetLastAvoidReach(int movestate);
+//returns a reachability area if the origin is in one
+int BotReachabilityArea(vec3_t origin, int client);
+//view target based on movement
+int BotMovementViewTarget(int movestate, bot_goal_t *goal, int travelflags, float lookahead, vec3_t target);
+//predict the position of a player based on movement towards a goal
+int BotPredictVisiblePosition(vec3_t origin, int areanum, bot_goal_t *goal, int travelflags, vec3_t target);
+//returns the handle of a newly allocated movestate
+int BotAllocMoveState(void);
+//frees the movestate with the given handle
+void BotFreeMoveState(int handle);
+//initialize movement state before performing any movement
+void BotInitMoveState(int handle, bot_initmove_t *initmove);
+//add a spot to avoid (if type == AVOID_CLEAR all spots are removed)
+void BotAddAvoidSpot(int movestate, vec3_t origin, float radius, int type);
+//must be called every map change
+void BotSetBrushModelTypes(void);
+//setup movement AI
+int BotSetupMoveAI(void);
+//shutdown movement AI
+void BotShutdownMoveAI(void);
+