General These functions allow general control of the Xpilot client xpilot void char* args a string of xpilot command-line arguments Sets the arguments to use when launching xpilot. Use prior to calling AI.xpilot.launch. ; joins server on localhost:1338 with name "jim" (xpilot "-name jim -join localhost -port 1338") AI.xpilot.launch AI.xpilot.setargs AI.xpilot.setargs void char* args a string of xpilot command-line arguments Sets the arguments to use when launching xpilot. Use prior to calling AI.xpilot.launch. ; joins server on localhost:1338 with name "jim" (AI.xpilot.setargs "-name jim -join localhost -port 1338") (AI.xpilot.launch) AI.xpilot.launch AI.xpilot.launch int 1 if successful, program crashes if not void Launches xpilot client ; loads up xpilot with the name "jim" (AI.xpilot.setargs "-name jim") (AI.xpilot.launch) AI.xpilot.setargs AI.setmaxturn void int maxturn maximum turn degrees per frame Sets the maximum turn for self in degrees per frame. AI.teamplay? int 1 if teamplay enabled, 0 if not void Sees if teamplay is enabled. AIself.team? AIship.team? AI.pressKey void int key key number to press Simulates a key press. Usually AI.releaseKey must be called after to complete the key-stroke. Below is a complete list of all the possible keys to press. ; A ship that tries to fire a laser every ; frame (if lasers are enabled by server (define AImain (lambda () (AI.pressKey KEY_FIRE_LASER) (AI.releaseKey KEY_FIRE_LASER))) AI.releaseKey KEY_DUMMY, ; 0 KEY_LOCK_NEXT, KEY_LOCK_PREV, KEY_LOCK_CLOSE, KEY_CHANGE_HOME, KEY_SHIELD, ; 5 KEY_FIRE_SHOT, KEY_FIRE_MISSILE, KEY_FIRE_TORPEDO, KEY_TOGGLE_NUCLEAR, KEY_FIRE_HEAT, ; 10 KEY_DROP_MINE, KEY_DETACH_MINE, KEY_TURN_LEFT, KEY_TURN_RIGHT, KEY_SELF_DESTRUCT, KEY_LOSE_ITEM, KEY_PAUSE, KEY_TANK_DETACH, KEY_TANK_NEXT, KEY_TANK_PREV, ; 20 KEY_TOGGLE_VELOCITY, KEY_TOGGLE_CLUSTER, KEY_SWAP_SETTINGS, KEY_REFUEL, KEY_CONNECTOR, KEY_INCREASE_POWER, KEY_DECREASE_POWER, KEY_INCREASE_TURNSPEED, KEY_DECREASE_TURNSPEED, KEY_THRUST, ; 30 KEY_CLOAK, KEY_ECM, KEY_DROP_BALL, KEY_TRANSPORTER, KEY_TALK, KEY_FIRE_LASER, KEY_LOCK_NEXT_CLOSE, KEY_TOGGLE_COMPASS, KEY_TOGGLE_MINI, KEY_TOGGLE_SPREAD, ; 40 KEY_TOGGLE_POWER, KEY_TOGGLE_AUTOPILOT, KEY_TOGGLE_LASER, KEY_EMERGENCY_THRUST, KEY_TRACTOR_BEAM, KEY_PRESSOR_BEAM, KEY_CLEAR_MODIFIERS, KEY_LOAD_MODIFIERS_1, KEY_LOAD_MODIFIERS_2, KEY_LOAD_MODIFIERS_3, ; 50 KEY_LOAD_MODIFIERS_4, KEY_SELECT_ITEM, KEY_PHASING, KEY_REPAIR, KEY_TOGGLE_IMPLOSION, KEY_REPROGRAM, KEY_LOAD_LOCK_1, KEY_LOAD_LOCK_2, KEY_LOAD_LOCK_3, KEY_LOAD_LOCK_4, ; 60 KEY_EMERGENCY_SHIELD, KEY_HYPERJUMP, KEY_DETONATE_MINES, KEY_DEFLECTOR, KEY_UNUSED_65, KEY_UNUSED_66, KEY_UNUSED_67, KEY_UNUSED_68, KEY_UNUSED_69, KEY_UNUSED_70, ; 70 KEY_UNUSED_71, NUM_KEYS, KEY_MSG_1, ; talk macros KEY_MSG_2, KEY_MSG_3, KEY_MSG_4, KEY_MSG_5, KEY_MSG_6, KEY_MSG_7, KEY_MSG_8, KEY_MSG_9, KEY_MSG_10, KEY_MSG_11, KEY_MSG_12, KEY_MSG_13, KEY_MSG_14, KEY_MSG_15, KEY_MSG_16, KEY_MSG_17, KEY_MSG_18, KEY_MSG_19, KEY_MSG_20, KEY_ID_MODE, KEY_TOGGLE_OWNED_ITEMS, KEY_TOGGLE_MESSAGES, KEY_POINTER_CONTROL, KEY_TOGGLE_RECORD, KEY_PRINT_MSGS_STDOUT, KEY_TALK_CURSOR_LEFT, KEY_TALK_CURSOR_RIGHT, KEY_TALK_CURSOR_UP, KEY_TALK_CURSOR_DOWN, KEY_SWAP_SCALEFACTOR, AI.releaseKey void int key key number to release Simulates a key release. Call to release a key pressed by AI.pressKey. See AI.pressKey for a complete list of keys. ; A ship that tries to fire a laser every ; frame (if lasers are enabled by server (define AImain (lambda () (AI.pressKey KEY_FIRE_LASER) (AI.releaseKey KEY_FIRE_LASER))) AI.pressKey Self Control Functions to control the ship AIself.thrust void int thrust 1 to thrust, 0 to not thrust. Controls the ship's thrust. 1 to thrust, 0 to not thrust. Resets to not-thrust after every frame. ; a ship that thrusts every frame (define AImain (lambda () (AIself.thrust 1))) AIself.turn AIself.shoot AIself.shield AIself.turn void int turn degrees to turn Turns the ship turn degrees (out of 360). Negative degrees are counter-clockwise, positive clockwise. ; a ship that turns 15 degrees clockwise every frame (define AImain (lambda () (AIself.turn 15))) AI.setmaxturn AIself.thrust AIself.shoot anglediff angleadd AIself.shield AIself.shoot void int shoot 1 to shoot, 0 to not shoot. Makes the ship shoot. 1 to shoot, 0 to not shoot. Servers limit the shot rate and the number of shots, so AIself.shoot(1) will not always cause a shot to be fired. Use AIself.reload? to check the number of frames remaining before it is possible to shoot again. ; a ship that waits until "reload" ; says it can shoot and then shoots (define AImain (lambda () (if (= (AIself.reload?) 0) (AIself.shoot 1)))) AIself.reload? AIself.turn AIself.thrust AIself.shield AIself.shield void int shield 1 to enable, 0 to disable. Turns on or off the ship's shield. Use AIself.shield? to see the status of the shield. ; a ship whose shield is always on (define AImain (lambda () (AIself.shield 1))) AIself.shield? AIself.turn AIself.thrust AIself.shoot AIself.destruct void void Start or stop the self-destruct sequence. Self Variables Functions that return values of variables concerning the self ship. AIself.id? int self's id void The id of self's ship, according to the server. AIship.id? AIself.alive? int 1 if self is alive, else 0 void AIself.x? int self's x position void Self's x position, where bottom left of map is [0, 0]. AIself.y? AIship.x? AIradar.x? AIshot.x? AIself.y? int self's y position void Self's y position, where bottom left of map is [0, 0]. AIself.x? AIship.y? AIradar.y? AIshot.y? AIself.vel? int self's velocity void Self's velocity (number of pixels moved per frame). AIself.track? AIship.vel? AIshot.vel? AIself.heading? int self's heading void Self's heading (direction ship's nose is pointing). 0 degrees is to the right and 90 degrees is straight up. AIself.track? anglediff angleadd AIself.track? int self's track void Self's track (direction of movement). 0 degrees is to the right and 90 degrees is straight up. AIself.heading? anglediff angleadd AIself.mapx? int self's x position void Self's x position on radar map, using radar map units. AIself.mapy? AIself.x? AIself.mapy? int self's y position void Self's y position on radar map, using radar map units. AIself.mapx? AIself.y? AIself.team? int self's team void AI.teamplay? AIship.team? AIself.life? int number of self's remaining lives void AIship.life? AIself.shield? int 1 if shield is on, 0 if off void AIship.shield? AIself.name? char* self's name void AIship.name? AIself.score? float self's total point score void AIself.HUD.score AIself.reload? int remaining reload time void Number of frames remaining before self is able to shoot. When 0, self is able to shoot. AIship.reload? Ships Functions returning information about other ships on screen. The ships are sorted from nearest to furthest. AIship.x? int ship's x position, or -1 if ship not on screen. int which which ship on screen, sorted near to far Ship's x position, where bottom left of map is [0, 0]. AIself.x? AIship.y? AIradar.x? AIshot.x? AIship.y? int ship's y position, or -1 if ship not on screen. int which which ship on screen, sorted near to far Ship's y position, where bottom left of map is [0, 0]. AIself.y? AIship.x? AIradar.y? AIshot.y? AIship.heading? int ship's heading, or -1 if ship not on screen. int which which ship on screen, sorted near to far Ship's heading (angle nose is pointing). 0 degrees is to the right, and 90 straight up. AIship.track? anglediff angleadd AIship.track? int ship's track, or -1 if ship not on screen. int which which ship on screen, sorted near to far Ship's track (direction of velocity). 0 degrees is to the right, and 90 straight up. AIship.heading? anglediff angleadd AIship.vel? int ship's velocity, or -1 if ship not on screen. int which which ship on screen, sorted near to far Ship's velocity in pixels/frame. AIself.vel? AIshot.vel? AIship.dist? int ship's distance from self, or -1 if ship not on screen. int which which ship on screen, sorted near to far Ship's distance from self, in pixels. AIradar.dist? AIshot.dist? AIship.id? int id of ship, or -1 if ship not on screen. int which which ship on screen, sorted near to far server assigned id of ship AIself.id? AIship.xdir? int ship's xdir, or -1 if ship not on screen. int which which ship on screen, sorted near to far Direction of ship from self. 0 degrees is to the right and 90 upright. ; Self always points at nearest on screen ship (define AImain (lambda () (if (not (= (AIship.x? 0) -1)) (AIself.turn (anglediff (AIself.heading?) (AIship.xdir? 0)))))) AIself.heading? anglediff angleadd AIradar.xdir? AIship.shield? int 1 if ship's shield is on, 0 if not, or -1 if ship not on screen. int which which ship on screen, sorted near to far AIself.shield AIship.life? int number of lives remaining for ship, or -1 if ship not on screen. int which which ship on screen, sorted near to far AIself.life? AIship.team? int team of ship, or -1 if ship not on screen. int which which ship on screen, sorted near to far AIself.team? AIship.reload? int reload time of ship, or -1 if ship not on screen. int which which ship on screen, sorted near to far This is the number of frames remaining before the ship can fire again. This number is just an estimate, and may not always be correct. AIself.reload? AIship.name? char* name of ship, or NULL if ship not on screen. int which which ship on screen, sorted near to far AIself.name? AIship.aimdir? int aimdir int which which ship on screen, sorted near to far Calculates the direction that self would need to point to hit the ship, according to self's track and velocity, the enemy ship's track and velocity, and the default bullet's shotspeed. This is a pretty deadly function. Sometimes it can't calculate correctly and returns some negative number. ; bot that aims and shoots at nearest ship (define AImain (lambda () (if (not (= (AIship.x? 0) -1)) (AIself.turn (anglediff (AIself.heading?) (AIship.aimdir? 0))) (AIself.shoot 1)))) AIship.xdir? AIself.heading? anglediff angleadd Radar Functions returning information about other ships on the radar. The ships are sorted from nearest to furthest. AIradar.x? int ship's x position, or -1 if no more ships on radar. int which which ship on radar, sorted near to far Radar ship's x position (approximate), where bottom left of map is [0, 0]. AIself.x? AIship.x? AIradar.y? AIshot.x? AIradar.y? int ship's y position, or -1 if no more ships on radar. int which which ship on radar, sorted near to far Radar ship's y position (approximate), where bottom left of map is [0, 0]. AIself.y? AIship.y? AIradar.x? AIshot.y? AIradar.dist? int ship's distance from self, or -1 if no more ships on radar. int which which ship on radar, sorted near to far Radar ship's distance from self, in pixels (approximate). AIship.dist? AIshot.dist? AIradar.xdir? int ship's xdir, or -1 if no more ships on radar. int which which ship on radar, sorted near to far Direction of radar ship from self. 0 degrees is to the right and 90 upright. ; self always points at second-nearest radar ship (define AImain (lambda () (if (not (= (AIradar.x? 1) -1)) (AIself.turn (anglediff (AIself.heading?) (AIradar.xdir? 1)))))) AIself.heading? AIship.xdir? anglediff angleadd AIradar.enemy? int 1 if enemy, 0 if friend, or -1 if no more ships on radar. int which which ship on radar, sorted near to far AIship.team? Shots Functions returning information about the shots on screen. AIshot.x? int shot's x position, or -1 if shot not on screen. int which which shot on screen, sorted near to far shot's x position, where bottom left of map is [0, 0]. AIself.x? AIshot.y? AIshot.y? int shot's y position, or -1 if shot not on screen. int which which shot on screen, sorted near to far shot's y position, where bottom left of map is [0, 0]. AIself.y? AIshot.x? AIshot.track? int shot's track, or -1 if shot not on screen. int which which shot on screen, sorted near to far shot's track (direction of velocity). 0 degrees is to the right, and 90 straight up. AIshot.vel? anglediff angleadd AIshot.vel? int shot's velocity, or -1 if shot not on screen. int which which shot on screen, sorted near to far shot's velocity in pixels/frame. AIship.vel? AIshot.track? AIshot.dist? int shot's distance from self, or -1 if shot not on screen. int which which shot on screen, sorted near to far shot's distance from self, in pixels. AIship.dist? AIradar.dist? AIshot.imaginary? int 1 if shot imaginary, 0 if not, or -1 if shot not on screen. int which which shot on screen, sorted near to far Imaginary shots are calculated for every ship on screen. If a ship were to shoot this frame, imaginary bullets tell that shots attributes. AIshot.x? AIshot.xdir? int shot's xdir, or -1 if shot not on screen. int which which shot on screen, sorted near to far Direction of shot from self. 0 degrees is to the right and 90 upright. AIshot.idir? AIself.heading? anglediff angleadd AIshot.idir? int shot's intercept dir, or -1 if shot not on screen. int which which shot on screen, sorted near to far Direction of the location where the shot will be nearest to self, if both self velocity and bullet velocity remain constant. 0 degrees is to the right and 90 upright. ; self turns away from intercept dir and thrusts (define AImain (lambda () (if (not (= (AIshot.x? 0) -1)) (AIself.turn (anglediff (AIself.heading?) (angleadd (AIshot.idir? 0) 180)))))) AIshot.idist? AIshot.itime? AIself.heading? anglediff angleadd AIshot.idist? int shot's intercept distance, or -1 if shot not on screen. int which which shot on screen, sorted near to far Distance to the location where the shot will be nearest to self, if both self velocity and bullet velocity remain constant, in pixels. AIshot.idir? AIshot.itime? AIself.heading? anglediff angleadd AIshot.itime? int shot's time to intercept, or -1 if shot not on screen. int which which shot on screen, sorted near to far Number of frames until the nearest intercept will occur, if both self velocity and bullet velocity remain constant. AIshot.idir? AIshot.idist? AIself.heading? anglediff angleadd AIshot.alert? int alert value of shot, or -1 if shot not on screen. int which which shot on screen, sorted near to far A value derived from AIshot.idist? and AIshot.itime?. An alert between 0 and 30 means that self will probably be killed by the shot, 30 to 120, that it is a dangerous shot and should be avoided, and above 120, it's not very dangerous. This variable is just for convience, and should probably not be used in more advanced controllers. AIself.reload? Walls and Map Functions to check for walls and to look at map tiles AI.wallbetween int distance to nearest wall between [x1, y1] and [x2, y2]. Or -1 if no wall. int x1 x coordinate of first point int y1 y coordinate of first point int x2 x coordinate of second point int y2 y coordinate of second point This function checks for walls in a straight line starting from point [x1, y1] to point [x2, y2]. If it finds a wall, it returns the distance (in pixels) from [x1, y1] to that point. If gets to [x2, y2] without finding a wall, it returns -1. ; this checks for a wall 200 pixels ; in front of the ships track (define wall_N (lambda () (AI.wallbetween (AIself.x?) (AIself.y?) (+ (AIself.x?) (* 200 (cos (rad (AIself.track?))))) (+ (AIself.y?) (* 200 (sin (rad (AIself.track?)))))))) AI.wallbetween.x AI.wallbetween.y AI.wallbetween.x int x coordinate of nearest wall between [x1, y1] and [x2, y2]. Or -1 if no wall. int x1 x coordinate of first point int y1 y coordinate of first point int x2 x coordinate of second point int y2 y coordinate of second point This function checks for walls in a straight line starting from point [x1, y1] to point [x2, y2]. If it finds a wall, it returns the x coordinate of that wall. If gets to [x2, y2] without finding a wall, it returns -1. AI.wallbetween AI.wallbetween.y AI.wallbetween.y int y coordinate of nearest wall between [x1, y1] and [x2, y2]. Or -1 if no wall. int x1 x coordinate of first point int y1 y coordinate of first point int x2 x coordinate of second point int y2 y coordinate of second point This function checks for walls in a straight line starting from point [x1, y1] to point [x2, y2]. If it finds a wall, it returns the y coordinate of that wall. If gets to [x2, y2] without finding a wall, it returns -1. AI.wallbetween AI.wallbetween.x AImap? unsigned int bit flags for tile at (mapx, mapy) int mapx mapx coordinate int mapy mapy coordinate The map consists of tiles which are 35x35 pixels each. Each tile contains information about that spot on the map, and can have multiple values. For instance, a square block tile may have 5 bit flags set; one for each side, and one to indicate it is a wall tile. The possible flags are listed below. Use the bitwise "and" operator to check the tiles for the flags. To convert a regular game coordinate to a map coordinate, use tomap and frmap. ; checks to see if the map tile to the immediate ; right of the player contains a wall of some sort (if (bitwise-and (AImap? (+ (tomap (AIself.x?)) 1) (+ (tomap (AIself.y?)) + 1)) BLUE_BIT) printf("To the right is a wall tile!\n"); AImap.set tomap frmap SETUP_SPACE 0 SETUP_FILLED 1 SETUP_FILLED_NO_DRAW 2 SETUP_FUEL 3 SETUP_REC_RU 4 SETUP_REC_RD 5 SETUP_REC_LU 6 SETUP_REC_LD 7 SETUP_ACWISE_GRAV 8 SETUP_CWISE_GRAV 9 SETUP_POS_GRAV 10 SETUP_NEG_GRAV 11 SETUP_WORM_NORMAL 12 SETUP_WORM_IN 13 SETUP_WORM_OUT 14 SETUP_CANNON_UP 15 SETUP_CANNON_RIGHT 16 SETUP_CANNON_DOWN 17 SETUP_CANNON_LEFT 18 SETUP_SPACE_DOT 19 SETUP_TREASURE 20 ; + team number (10) SETUP_BASE_LOWEST 30 ; lowest base number SETUP_BASE_UP 30 ; + team number (10) SETUP_BASE_RIGHT 40 ; + team number (10) SETUP_BASE_DOWN 50 ; + team number (10) SETUP_BASE_LEFT 60 ; + team number (10) SETUP_BASE_HIGHEST 69 ; highest base number SETUP_TARGET 70 ; + team number (10) SETUP_CHECK 80 ; + check point number (26) SETUP_ITEM_CONCENTRATOR 110 SETUP_DECOR_FILLED 111 SETUP_DECOR_RU 112 SETUP_DECOR_RD 113 SETUP_DECOR_LU 114 SETUP_DECOR_LD 115 SETUP_DECOR_DOT_FILLED 116 SETUP_DECOR_DOT_RU 117 SETUP_DECOR_DOT_RD 118 SETUP_DECOR_DOT_LU 119 SETUP_DECOR_DOT_LD 120 SETUP_UP_GRAV 121 SETUP_DOWN_GRAV 122 SETUP_RIGHT_GRAV 123 SETUP_LEFT_GRAV 124 SETUP_ASTEROID_CONCENTRATOR 125 BLUE_UP 0x01 BLUE_RIGHT 0x02 BLUE_DOWN 0x04 BLUE_LEFT 0x08 BLUE_OPEN 0x10 ; diagonal botleft -> rightup BLUE_CLOSED 0x20 ; diagonal topleft -> rightdown BLUE_FUEL 0x30 ; when filled block is fuelstation BLUE_BELOW 0x40 ; when triangle is below diagonal BLUE_BIT 0x80 ; set when drawn with blue lines DECOR_LEFT 0x01 DECOR_RIGHT 0x02 DECOR_DOWN 0x04 DECOR_UP 0x08 DECOR_OPEN 0x10 DECOR_CLOSED 0x20 DECOR_BELOW 0x40 AImap.set void int mapx mapx coordinate int mapy mapy coordinate unsigned int value new map tile value The map tiles in Xpilot-AI are 32 bits. Only the lowest order bits are used for Xpilot, so the other bits can be set as desired. ; Sets a bit flag on the map tile underneath self (let ((newtile (AImap? (tomap (AIself.x?)) (tomap (AIself.y?))))) (set! newtile (bitwise-ior newtile 0x1000)) (AImap.set (tomap (AIself.x?)) (tomap (AIself.y?)) newtile)) AImap? tomap frmap tomap int map tile int n game pixel value Converts a gamplay pixel value to a map value. AImap? AImap.set frmap frmap int game pixel int mapn map value Takes a map value and returns the middle of that map tile, in pixels. AImap? AImap.set tomap Messages Write and recieve messages using the player-to-player messaging system in Xpilot AI.talk void char* message Say a message through the player-to-player talk system in Xpilot. Sometimes xpilot servers kick out players that type too much, or send two messages in on frame. Because of this, if AI.talk is called more than once per frame, it will automatically spread sending the messages over several frames. ; Writes a message to everyone (AI.talk "Hello everyone") ; Writes a private message to a player named "Jimmy" (AI.talk "Jimmy: hello I'm at (22, 1004)") ; Change to team 5 (AI.talk "/team 5") AI.msg.to? AI.msg.from? AImsg.body AI.msg.to? char* player's name, or NULL if a public message or no more messages int which which message out of all recieved in frame Look at a private message's "to" field from the player-to-player messaging system. Returns NULL if there is no "to" field either because there is no message or it is a public message. AI.talk AI.msg.from? AImsg.body AI.msg.from? char* player's name, or NULL if no more messages int which which message out of all recieved in frame Look at a message's "from" field from the player-to-player messaging system. Returns NULL if there are no messages. AI.talk AI.msg.to? AImsg.body AImsg.body char* body of message, or NULL if no messages int which which message out of all recieved in frame Look at a message's "body" field from the player-to-player messaging system. Returns NULL if there are no messages. ; cycles through all the messages recieved ; every frame and prints the body (define print-bodies (lambda (n) (if (not (= 0 (AImsg.body n))) (begin (print (AImsg.body n)) (print-bodies (add1 n)))))) ; then call (print-bodies 0) in AImain AI.talk AI.msg.to? AI.msg.from? HUD The HUD is the informative box around the self's ship. These functions access various information from the HUD, like the info about who killed who (Useful for determing kills). AIself.HUD.name char* name on HUD slot, or NULL if no more messages int which HUD slot Look at a HUD slot's name field. Returns "" if there is no name in that slot. AIself.HUD.score AIself.HUD.name AIself.HUD.score float score on HUD slot, or -99999.0 if empty int which HUD slot Look at a HUD slot's score field. It is best to check for empty slots using AIself.HUD.time. AIself.HUD.time AIself.HUD.name AIself.HUD.time int time of HUD slot, or -1 if slot is empty int which HUD slot Number of frames that the HUD message has been on the HUD slot. When a score first appears it will have a value of 0, then increase each frame thereafter until it gets to about 99.AIself.HUD.time. ; check for and print out any names with positive points in HUD (define HUD-positive (lambda (n) (if (not (= (AIself.HUD.time n) -1)) (begin (if (and (= (AIself.HUD.time n) 0) (>= (AIself.HUD.score n) 0.0)) (print "You killed: " (AIself.HUD.name n))) (HUD-positive (add1 n)))))) ; then call (HUD-positive 0) in AImain AIself.HUD.score AIself.HUD.name Math Functions Useful math functions anglediff int difference between angles int angle1 first angle int angle2 second angle Returns the smallest angle which angle1 could add to itself to be equal to angle2. This is useful for turning particular directions. (anglediff 90 70) = -20 (anglediff 350 10) = 20 angleadd rad deg angleadd int addition of two angles int angle1 first angle int angle2 second angle Adds two angles together. (angleadd 90 70) = 160 (angleadd 350 40) = 30 angleadd rad deg rad float radians int deg angle in degrees Converts a degree angle to radian, which is used in sin, cos, and tan. deg angleadd anglediff deg float degrees float rad angle in radians Converts a radian angle to degree, which is used in gameplay. rad angleadd anglediff