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https://git.do.srb2.org/STJr/SRB2.git
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Initial commit
This commit is contained in:
lachwright
parent
ff8c43664a
commit
00697caa6e
1 changed files with 277 additions and 37 deletions
308
src/b_bot.c
308
src/b_bot.c
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@ -24,12 +24,36 @@ static boolean lastForward = false;
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static boolean lastBlocked = false;
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static boolean lastBlocked = false;
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static boolean blocked = false;
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static boolean blocked = false;
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static boolean jump_last = false;
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static boolean spin_last = false;
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static UINT8 anxiety = 0;
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static boolean panic = false;
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static UINT8 flymode = 0;
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static boolean spinmode = false;
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static boolean thinkfly = false;
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static mobj_t *overlay;
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static inline void B_BuildTailsTiccmd(mobj_t *sonic, mobj_t *tails, ticcmd_t *cmd)
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static inline void B_BuildTailsTiccmd(mobj_t *sonic, mobj_t *tails, ticcmd_t *cmd)
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{
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{
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boolean forward=false, backward=false, left=false, right=false, jump=false, spin=false;
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boolean forward=false, backward=false, left=false, right=false, jump=false, spin=false;
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angle_t angle;
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INT16 rangle;
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player_t *player = sonic->player, *bot = tails->player;
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fixed_t dist;
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ticcmd_t *pcmd = &player->cmd;
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boolean water = tails->eflags & MFE_UNDERWATER;
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boolean flip = P_MobjFlip(tails);
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boolean _2d = (tails->flags2 & MF2_TWOD) || twodlevel;
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fixed_t scale = tails->scale;
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fixed_t dist = P_AproxDistance(sonic->x - tails->x, sonic->y - tails->y);
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fixed_t zdist = flip * (sonic->z - tails->z);
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angle_t ang = R_PointToAngle2(tails->x, tails->y, sonic->x, sonic->y);
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fixed_t pmom = P_AproxDistance(sonic->momx, sonic->momy);
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fixed_t bmom = P_AproxDistance(tails->momx, tails->momy);
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fixed_t followmax = 128 * 8 *scale;
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fixed_t followthres = 92 * scale;
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fixed_t followmin = 32 * scale;
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fixed_t comfortheight = 96 * scale;
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fixed_t touchdist = 24 * scale;
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// We can't follow Sonic if he's not around!
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// We can't follow Sonic if he's not around!
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if (!sonic || sonic->health <= 0)
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if (!sonic || sonic->health <= 0)
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@ -58,46 +82,255 @@ static inline void B_BuildTailsTiccmd(mobj_t *sonic, mobj_t *tails, ticcmd_t *cm
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return;
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return;
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}
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}
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// Gather data about the environment
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// Adapted from CobaltBW's tails_AI.wad
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dist = P_AproxDistance(tails->x-sonic->x, tails->y-sonic->y);
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if (tails->player->pflags & PF_STARTDASH)
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// Check water
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angle = sonic->angle;
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if (water)
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{
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followmin = 0;
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followthres = 16*scale;
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followmax >>= 1;
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thinkfly = false;
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}
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// Check anxiety
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if (spinmode)
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{
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anxiety = 0;
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panic = false;
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}
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else if (dist > followmax || zdist > comfortheight)
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{
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anxiety = min(anxiety + 2, 70);
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if (anxiety >= 70)
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panic = true;
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}
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else
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else
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angle = R_PointToAngle2(tails->x, tails->y, sonic->x, sonic->y);
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{
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anxiety = max(anxiety - 1, 0);
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// Decide which direction to turn
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panic = false;
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angle = (tails->angle - angle);
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if (angle < ANGLE_180) {
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right = true; // We need to turn right
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rangle = AngleFixed(angle)>>FRACBITS;
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} else {
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left = true; // We need to turn left
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rangle = 360-(AngleFixed(angle)>>FRACBITS);
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}
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}
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// Decide to move forward if you're finished turning
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// Orientation
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if (abs(rangle) < 10) { // We're facing the right way?
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if ((bot->pflags & (PF_SPINNING|PF_STARTDASH)) || flymode == 2)
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left = right = false; // Stop turning
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{
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forward = true; // and walk forward instead.
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tails->angle = sonic->angle;
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}
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else
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{
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tails->angle = ang;
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}
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}
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if (dist < (sonic->radius+tails->radius)*3) // We're close enough?
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forward = false; // Stop walking.
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// Decide when to jump
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// ********
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if (!(tails->player->pflags & (PF_JUMPED|PF_JUMPDOWN))) { // We're not jumping yet...
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// FLY MODE
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if (forward && lastForward && blocked && lastBlocked) // We've been stopped by a wall or something
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// spinmode check
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jump = true; // Try to jump up
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if (spinmode)
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} else if ((tails->player->pflags & (PF_JUMPDOWN|PF_JUMPED)) == (PF_JUMPDOWN|PF_JUMPED)) { // When we're already jumping...
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thinkfly = false;
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if (lastForward && blocked) // We're still stuck on something?
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else
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{
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// Activate co-op flight
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if (thinkfly && player->pflags & PF_JUMPED)
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{
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if (!jump_last)
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{
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jump = true;
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if (bot->pflags & PF_JUMPED)
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{
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flymode = 1;
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thinkfly = false;
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}
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}
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}
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// Check positioning
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// Thinker for co-op flight
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if (!(water || pmom || bmom)
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&& (dist < touchdist)
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&& !(pcmd->forwardmove || pcmd->sidemove || player->dashspeed)
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&& P_IsObjectOnGround(sonic) && P_IsObjectOnGround(tails)
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&& !(player->pflags & PF_STASIS))
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thinkfly = true;
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else
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thinkfly = false;
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// Ready for takeoff
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if (flymode == 1)
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{
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thinkfly = false;
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if (zdist < -64*scale || (flip * tails->momz) > scale) // Make sure we're not too high up
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spin = true;
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else if (!jump_last)
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jump = true;
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// Abort if the player moves away or spins
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if (dist > followthres || player->dashspeed)
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flymode = 0;
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// Set carried state
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if (bot->pflags & PF_THOKKED && flymode == 1
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&& !P_IsObjectOnGround(sonic)
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&& dist < touchdist
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&& zdist < 32*scale
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&& flip * sonic->momz < 0)
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{
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P_SetTarget(&sonic->tracer, tails);
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player->powers[pw_carry] = CR_PLAYER;
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flymode = 2;
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player->pflags &= ~PF_JUMPED;
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}
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}
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// Read player inputs
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else if (flymode == 2)
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{
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cmd->forwardmove = pcmd->forwardmove;
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cmd->sidemove = pcmd->sidemove;
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if (pcmd->buttons & BT_USE)
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{
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spin = true;
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jump = false;
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}
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else if (!jump_last)
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jump = true;
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// End flymode
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if (player->pflags & PF_JUMPED
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|| player->powers[pw_carry] != CR_PLAYER
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|| P_IsObjectOnGround(sonic))
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{
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player->powers[pw_carry] = CR_NONE;
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P_SetTarget(&sonic->tracer, NULL);
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flymode = 0;
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}
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}
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}
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if (flymode && P_IsObjectOnGround(tails) && !(pcmd->buttons & BT_JUMP))
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flymode = 0;
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// ********
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// SPINNING
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if (panic || flymode || !(player->pflags & PF_SPINNING) || (player->pflags & PF_JUMPED))
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spinmode = false;
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else
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{
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if (!_2d)
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{
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// Spindash
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if (player->dashspeed)
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{
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if (dist < followthres && dist > touchdist) // Do positioning
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{
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tails->angle = ang;
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cmd->forwardmove = 50;
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spinmode = true;
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}
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else if (dist < touchdist && !bmom
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&& (!(bot->pflags & PF_SPINNING) || (bot->dashspeed && bot->pflags & PF_SPINNING)))
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{
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tails->angle = sonic->angle;
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spin = true;
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spinmode = true;
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}
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else
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spinmode = 0;
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}
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// Spin
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else if (player->dashspeed == bot->dashspeed && player->pflags & PF_SPINNING)
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{
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if (bot->pflags & PF_SPINNING || !spin_last)
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{
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spin = true;
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tails->angle = sonic->angle;
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cmd->forwardmove = MAXPLMOVE;
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spinmode = true;
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}
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else
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spinmode = false;
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}
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}
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// 2D mode
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else
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{
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if ((player->dashspeed && !bmom) || (player->dashspeed == bot->dashspeed && player->pflags & PF_SPINNING))
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{
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spin = true;
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spinmode = true;
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}
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}
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}
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// ********
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// FOLLOW
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if (!(flymode || spinmode))
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{
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// Too far
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if (panic || dist > followthres)
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{
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if (!_2d)
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cmd->forwardmove = MAXPLMOVE;
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else if (sonic->x > tails->x)
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cmd->sidemove = MAXPLMOVE;
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else
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cmd->sidemove = -MAXPLMOVE;
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}
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// Within threshold
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else if (!panic && dist > followmin && abs(zdist) < 192*scale)
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{
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if (!_2d)
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cmd->forwardmove = FixedHypot(pcmd->forwardmove, pcmd->sidemove);
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else
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cmd->sidemove = pcmd->sidemove;
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}
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// Below min
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else if (dist < followmin)
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{
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// Copy inputs
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tails->angle = sonic->angle;
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bot->drawangle = player->drawangle;
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cmd->forwardmove = 8 * pcmd->forwardmove / 10;
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cmd->sidemove = 8 * pcmd->sidemove / 10;
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}
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}
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// ********
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// JUMP
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if (!(flymode || spinmode))
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{
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// Flying catch-up
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if (bot->pflags & PF_THOKKED)
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{
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cmd->forwardmove = min(50, dist/scale/8);
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if (zdist < -64*scale)
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spin = true;
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else if (zdist > 0 && !jump_last)
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jump = true;
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}
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// Just landed
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if (tails->eflags & MFE_JUSTHITFLOOR)
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jump = false;
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// Start jump
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else if (!jump_last && !(bot->pflags & PF_JUMPED) && !(player->pflags & PF_SPINNING)
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&& ((zdist > 32*scale && player->pflags & PF_JUMPED) // Following
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|| (zdist > 64*scale && panic) // Vertical catch-up
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|| (bmom < scale>>3 && dist > followthres && !(bot->powers[pw_carry])) // Stopped & not in carry state
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|| (bot->pflags & PF_SPINNING && !(bot->pflags & PF_JUMPED)))) // Spinning
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jump = true;
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// Hold jump
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else if (bot->pflags & PF_JUMPED && jump_last && tails->momz*flip > 0 && (zdist > 0 || panic))
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jump = true;
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jump = true;
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if (sonic->floorz > tails->floorz) // He's still above us? Jump HIGHER, then!
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// Start flying
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else if (bot->pflags & PF_JUMPED && panic && !jump_last)
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jump = true;
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jump = true;
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}
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}
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// Decide when to spin
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// ********
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if (sonic->player->pflags & PF_STARTDASH
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// HISTORY
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&& (tails->player->pflags & PF_STARTDASH || (P_AproxDistance(tails->momx, tails->momy) < 2*FRACUNIT && !forward)))
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jump_last = jump;
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spin = true;
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spin_last = spin;
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// ********
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// Thinkfly overlay
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// doing this later :P
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// Turn the virtual keypresses into ticcmd_t.
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// Turn the virtual keypresses into ticcmd_t.
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B_KeysToTiccmd(tails, cmd, forward, backward, left, right, false, false, jump, spin);
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B_KeysToTiccmd(tails, cmd, forward, backward, left, right, false, false, jump, spin);
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@ -188,6 +421,13 @@ void B_KeysToTiccmd(mobj_t *mo, ticcmd_t *cmd, boolean forward, boolean backward
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cmd->sidemove -= MAXPLMOVE<<FRACBITS>>16;
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cmd->sidemove -= MAXPLMOVE<<FRACBITS>>16;
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if (straferight)
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if (straferight)
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cmd->sidemove += MAXPLMOVE<<FRACBITS>>16;
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cmd->sidemove += MAXPLMOVE<<FRACBITS>>16;
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// cap inputs so the bot can't accelerate faster diagonally
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angle_t angle = R_PointToAngle2(0, 0, cmd->sidemove << FRACBITS, cmd->forwardmove << FRACBITS);
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INT32 maxforward = abs(P_ReturnThrustY(NULL, angle, MAXPLMOVE));
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INT32 maxside = abs(P_ReturnThrustX(NULL, angle, MAXPLMOVE));
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cmd->forwardmove = max(min(cmd->forwardmove, maxforward), -maxforward);
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cmd->sidemove = max(min(cmd->sidemove, maxside), -maxside);
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}
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}
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if (jump)
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if (jump)
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cmd->buttons |= BT_JUMP;
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cmd->buttons |= BT_JUMP;
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