mirror of
https://github.com/ioquake/jedi-academy.git
synced 2024-11-26 06:01:04 +00:00
444 lines
14 KiB
C
444 lines
14 KiB
C
#include "g_headers.h"
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#include "bg_vehicles.h"
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#include "b_local.h"
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#include "../ghoul2/G2.h"
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extern void G_SetEnemy( gentity_t *self, gentity_t *enemy );
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extern void WP_CalcVehMuzzle(gentity_t *ent, int muzzleNum);
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extern gentity_t *WP_FireVehicleWeapon( gentity_t *ent, vec3_t start, vec3_t dir, vehWeaponInfo_t *vehWeapon, qboolean alt_fire, qboolean isTurretWeap );
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extern void G_VehMuzzleFireFX( gentity_t *ent, gentity_t *broadcaster, int muzzlesFired );
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//-----------------------------------------------------
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void VEH_TurretCheckFire( Vehicle_t *pVeh,
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gentity_t *parent,
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//gentity_t *turretEnemy,
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turretStats_t *turretStats,
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vehWeaponInfo_t *vehWeapon,
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int turretNum, int curMuzzle )
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{
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// if it's time to fire and we have an enemy, then gun 'em down! pushDebounce time controls next fire time
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if ( pVeh->m_iMuzzleTag[curMuzzle] == -1 )
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{//invalid muzzle?
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return;
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}
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if ( pVeh->m_iMuzzleWait[curMuzzle] >= level.time )
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{//can't fire yet
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return;
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}
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if ( pVeh->turretStatus[turretNum].ammo < vehWeapon->iAmmoPerShot )
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{//no ammo, can't fire
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return;
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}
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//if ( turretEnemy )
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{
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//FIXME: check to see if I'm aiming generally where I want to
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int nextMuzzle = 0, muzzlesFired = (1<<curMuzzle);
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gentity_t *missile;
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WP_CalcVehMuzzle( parent, curMuzzle );
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//FIXME: some variation in fire dir
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missile = WP_FireVehicleWeapon( parent, pVeh->m_vMuzzlePos[curMuzzle], pVeh->m_vMuzzleDir[curMuzzle], vehWeapon, (turretNum!=0), qtrue );
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//play the weapon's muzzle effect if we have one
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G_VehMuzzleFireFX(parent, missile, muzzlesFired );
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//take the ammo away
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pVeh->turretStatus[turretNum].ammo -= vehWeapon->iAmmoPerShot;
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//toggle to the next muzzle on this turret, if there is one
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nextMuzzle = ((curMuzzle+1)==pVeh->m_pVehicleInfo->turret[turretNum].iMuzzle[0])?pVeh->m_pVehicleInfo->turret[turretNum].iMuzzle[1]:pVeh->m_pVehicleInfo->turret[turretNum].iMuzzle[0];
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if ( nextMuzzle )
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{//a valid muzzle to toggle to
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pVeh->turretStatus[turretNum].nextMuzzle = nextMuzzle-1;//-1 because you type muzzles 1-10 in the .veh file
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}
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//add delay to the next muzzle so it doesn't fire right away on the next frame
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pVeh->m_iMuzzleWait[pVeh->turretStatus[turretNum].nextMuzzle] = level.time + turretStats->iDelay;
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}
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}
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void VEH_TurretAnglesToEnemy( Vehicle_t *pVeh, int curMuzzle, float fSpeed, gentity_t *turretEnemy, qboolean bAILead, vec3_t desiredAngles )
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{
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vec3_t enemyDir, org;
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VectorCopy( turretEnemy->r.currentOrigin, org );
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if ( bAILead )
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{//we want to lead them a bit
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vec3_t diff, velocity;
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float dist;
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VectorSubtract( org, pVeh->m_vMuzzlePos[curMuzzle], diff );
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dist = VectorNormalize( diff );
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if ( turretEnemy->client )
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{
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VectorCopy( turretEnemy->client->ps.velocity, velocity );
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}
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else
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{
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VectorCopy( turretEnemy->s.pos.trDelta, velocity );
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}
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VectorMA( org, (dist/fSpeed), velocity, org );
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}
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//FIXME: this isn't quite right, it's aiming from the muzzle, not the center of the turret...
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VectorSubtract( org, pVeh->m_vMuzzlePos[curMuzzle], enemyDir );
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//Get the desired absolute, world angles to our target
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vectoangles( enemyDir, desiredAngles );
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}
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//-----------------------------------------------------
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qboolean VEH_TurretAim( Vehicle_t *pVeh,
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gentity_t *parent,
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gentity_t *turretEnemy,
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turretStats_t *turretStats,
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vehWeaponInfo_t *vehWeapon,
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int turretNum, int curMuzzle, vec3_t desiredAngles )
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//-----------------------------------------------------
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{
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vec3_t curAngles, addAngles, newAngles, yawAngles, pitchAngles;
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float aimCorrect = qfalse;
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WP_CalcVehMuzzle( parent, curMuzzle );
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//get the current absolute angles of the turret right now
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vectoangles( pVeh->m_vMuzzleDir[curMuzzle], curAngles );
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//subtract out the vehicle's angles to get the relative alignment
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AnglesSubtract( curAngles, pVeh->m_vOrientation, curAngles );
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if ( turretEnemy )
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{
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aimCorrect = qtrue;
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// ...then we'll calculate what new aim adjustments we should attempt to make this frame
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// Aim at enemy
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VEH_TurretAnglesToEnemy( pVeh, curMuzzle, vehWeapon->fSpeed, turretEnemy, turretStats->bAILead, desiredAngles );
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}
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//subtract out the vehicle's angles to get the relative desired alignment
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AnglesSubtract( desiredAngles, pVeh->m_vOrientation, desiredAngles );
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//Now clamp the desired relative angles
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//clamp yaw
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desiredAngles[YAW] = AngleNormalize180( desiredAngles[YAW] );
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if ( pVeh->m_pVehicleInfo->turret[turretNum].yawClampLeft
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&& desiredAngles[YAW] > pVeh->m_pVehicleInfo->turret[turretNum].yawClampLeft )
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{
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aimCorrect = qfalse;
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desiredAngles[YAW] = pVeh->m_pVehicleInfo->turret[turretNum].yawClampLeft;
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}
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if ( pVeh->m_pVehicleInfo->turret[turretNum].yawClampRight
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&& desiredAngles[YAW] < pVeh->m_pVehicleInfo->turret[turretNum].yawClampRight )
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{
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aimCorrect = qfalse;
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desiredAngles[YAW] = pVeh->m_pVehicleInfo->turret[turretNum].yawClampRight;
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}
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//clamp pitch
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desiredAngles[PITCH] = AngleNormalize180( desiredAngles[PITCH] );
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if ( pVeh->m_pVehicleInfo->turret[turretNum].pitchClampDown
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&& desiredAngles[PITCH] > pVeh->m_pVehicleInfo->turret[turretNum].pitchClampDown )
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{
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aimCorrect = qfalse;
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desiredAngles[PITCH] = pVeh->m_pVehicleInfo->turret[turretNum].pitchClampDown;
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}
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if ( pVeh->m_pVehicleInfo->turret[turretNum].pitchClampUp
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&& desiredAngles[PITCH] < pVeh->m_pVehicleInfo->turret[turretNum].pitchClampUp )
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{
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aimCorrect = qfalse;
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desiredAngles[PITCH] = pVeh->m_pVehicleInfo->turret[turretNum].pitchClampUp;
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}
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//Now get the offset we want from our current relative angles
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AnglesSubtract( desiredAngles, curAngles, addAngles );
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//Now cap the addAngles for our fTurnSpeed
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if ( addAngles[PITCH] > turretStats->fTurnSpeed )
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{
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//aimCorrect = qfalse;//???
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addAngles[PITCH] = turretStats->fTurnSpeed;
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}
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else if ( addAngles[PITCH] < -turretStats->fTurnSpeed )
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{
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//aimCorrect = qfalse;//???
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addAngles[PITCH] = -turretStats->fTurnSpeed;
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}
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if ( addAngles[YAW] > turretStats->fTurnSpeed )
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{
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//aimCorrect = qfalse;//???
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addAngles[YAW] = turretStats->fTurnSpeed;
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}
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else if ( addAngles[YAW] < -turretStats->fTurnSpeed )
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{
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//aimCorrect = qfalse;//???
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addAngles[YAW] = -turretStats->fTurnSpeed;
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}
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//Now add the additional angles back in to our current relative angles
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//FIXME: add some AI aim error randomness...?
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newAngles[PITCH] = AngleNormalize180( curAngles[PITCH]+addAngles[PITCH] );
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newAngles[YAW] = AngleNormalize180( curAngles[YAW]+addAngles[YAW] );
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//Now set the bone angles to the new angles
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//set yaw
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if ( turretStats->yawBone )
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{
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VectorClear( yawAngles );
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yawAngles[turretStats->yawAxis] = newAngles[YAW];
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NPC_SetBoneAngles( parent, turretStats->yawBone, yawAngles );
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}
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//set pitch
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if ( turretStats->pitchBone )
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{
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VectorClear( pitchAngles );
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pitchAngles[turretStats->pitchAxis] = newAngles[PITCH];
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NPC_SetBoneAngles( parent, turretStats->pitchBone, pitchAngles );
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}
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//force muzzle to recalc next check
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pVeh->m_iMuzzleTime[curMuzzle] = 0;
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return aimCorrect;
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}
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//-----------------------------------------------------
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static qboolean VEH_TurretFindEnemies( Vehicle_t *pVeh,
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gentity_t *parent,
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turretStats_t *turretStats,
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int turretNum, int curMuzzle )
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//-----------------------------------------------------
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{
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qboolean found = qfalse;
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int i, count;
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float bestDist = turretStats->fAIRange * turretStats->fAIRange;
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float enemyDist;
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vec3_t enemyDir, org, org2;
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qboolean foundClient = qfalse;
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gentity_t *entity_list[MAX_GENTITIES], *target, *bestTarget = NULL;
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WP_CalcVehMuzzle( parent, curMuzzle );
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VectorCopy( pVeh->m_vMuzzlePos[curMuzzle], org2 );
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count = G_RadiusList( org2, turretStats->fAIRange, parent, qtrue, entity_list );
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for ( i = 0; i < count; i++ )
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{
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trace_t tr;
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target = entity_list[i];
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if ( target == parent
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|| !target->takedamage
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|| target->health <= 0
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|| ( target->flags & FL_NOTARGET ))
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{
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continue;
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}
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if ( !target->client )
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{// only attack clients
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if ( !(target->flags&FL_BBRUSH)//not a breakable brush
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|| !target->takedamage//is a bbrush, but invincible
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|| (target->NPC_targetname&&parent->targetname&&Q_stricmp(target->NPC_targetname,parent->targetname)!=0) )//not in invicible bbrush, but can only be broken by an NPC that is not me
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{
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if ( target->s.weapon == WP_TURRET
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&& target->classname
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&& Q_strncmp( "misc_turret", target->classname, 11 ) == 0 )
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{//these guys we want to shoot at
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}
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else
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{
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continue;
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}
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}
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//else: we will shoot at bbrushes!
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}
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else if ( target->client->sess.sessionTeam == TEAM_SPECTATOR )
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{
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continue;
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}
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if ( target == ((gentity_t*)pVeh->m_pPilot)
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|| target->r.ownerNum == parent->s.number )
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{//don't get angry at my pilot or passengers?
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continue;
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}
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if ( parent->client
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&& parent->client->sess.sessionTeam )
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{
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if ( target->client )
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{
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if ( target->client->sess.sessionTeam == parent->client->sess.sessionTeam )
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{
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// A bot/client/NPC we don't want to shoot
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continue;
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}
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}
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else if ( target->teamnodmg == parent->client->sess.sessionTeam )
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{//some other entity that's allied with us
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continue;
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}
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}
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if ( !trap_InPVS( org2, target->r.currentOrigin ))
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{
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continue;
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}
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VectorCopy( target->r.currentOrigin, org );
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trap_Trace( &tr, org2, NULL, NULL, org, parent->s.number, MASK_SHOT );
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if ( tr.entityNum == target->s.number
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|| (!tr.allsolid && !tr.startsolid && tr.fraction == 1.0 ) )
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{
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// Only acquire if have a clear shot, Is it in range and closer than our best?
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VectorSubtract( target->r.currentOrigin, org2, enemyDir );
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enemyDist = VectorLengthSquared( enemyDir );
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if ( enemyDist < bestDist || (target->client && !foundClient))// all things equal, keep current
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{
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bestTarget = target;
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bestDist = enemyDist;
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found = qtrue;
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if ( target->client )
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{//prefer clients over non-clients
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foundClient = qtrue;
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}
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}
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}
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}
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if ( found )
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{
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pVeh->turretStatus[turretNum].enemyEntNum = bestTarget->s.number;
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}
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return found;
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}
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void VEH_TurretObeyPassengerControl( Vehicle_t *pVeh, gentity_t *parent, int turretNum )
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{
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turretStats_t *turretStats = &pVeh->m_pVehicleInfo->turret[turretNum];
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gentity_t *passenger = (gentity_t *)pVeh->m_ppPassengers[turretStats->passengerNum-1];
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if ( passenger && passenger->client && passenger->health > 0 )
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{//a valid, living passenger client
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vehWeaponInfo_t *vehWeapon = &g_vehWeaponInfo[turretStats->iWeapon];
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int curMuzzle = pVeh->turretStatus[turretNum].nextMuzzle;
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vec3_t aimAngles;
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VectorCopy( passenger->client->ps.viewangles, aimAngles );
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VEH_TurretAim( pVeh, parent, NULL, turretStats, vehWeapon, turretNum, curMuzzle, aimAngles );
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if ( (passenger->client->pers.cmd.buttons&(BUTTON_ATTACK|BUTTON_ALT_ATTACK)) )
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{//he's pressing an attack button, so fire!
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VEH_TurretCheckFire( pVeh, parent, turretStats, vehWeapon, turretNum, curMuzzle );
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}
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}
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}
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void VEH_TurretThink( Vehicle_t *pVeh, gentity_t *parent, int turretNum )
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//-----------------------------------------------------
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{
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qboolean doAim = qfalse;
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float enemyDist, rangeSq;
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vec3_t enemyDir;
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turretStats_t *turretStats = &pVeh->m_pVehicleInfo->turret[turretNum];
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vehWeaponInfo_t *vehWeapon = NULL;
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gentity_t *turretEnemy = NULL;
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int curMuzzle = 0;//?
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if ( !turretStats || !turretStats->iAmmoMax )
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{//not a valid turret
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return;
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}
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if ( turretStats->passengerNum
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&& pVeh->m_iNumPassengers >= turretStats->passengerNum )
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{//the passenger that has control of this turret is on the ship
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VEH_TurretObeyPassengerControl( pVeh, parent, turretNum );
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return;
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}
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else if ( !turretStats->bAI )//try AI
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{//this turret does not think on its own.
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return;
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}
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//okay, so it has AI, but still don't think if there's no pilot!
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if ( !pVeh->m_pPilot )
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{
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return;
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}
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vehWeapon = &g_vehWeaponInfo[turretStats->iWeapon];
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rangeSq = (turretStats->fAIRange*turretStats->fAIRange);
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curMuzzle = pVeh->turretStatus[turretNum].nextMuzzle;
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if ( pVeh->turretStatus[turretNum].enemyEntNum < ENTITYNUM_WORLD )
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{
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turretEnemy = &g_entities[pVeh->turretStatus[turretNum].enemyEntNum];
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if ( turretEnemy->health < 0
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|| !turretEnemy->inuse
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|| turretEnemy == ((gentity_t*)pVeh->m_pPilot)//enemy became my pilot///?
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|| turretEnemy == parent
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|| turretEnemy->r.ownerNum == parent->s.number // a passenger?
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|| ( turretEnemy->client && turretEnemy->client->sess.sessionTeam == TEAM_SPECTATOR ) )
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{//don't keep going after spectators, pilot, self, dead people, etc.
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turretEnemy = NULL;
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pVeh->turretStatus[turretNum].enemyEntNum = ENTITYNUM_NONE;
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}
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}
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if ( pVeh->turretStatus[turretNum].enemyHoldTime < level.time )
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{
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if ( VEH_TurretFindEnemies( pVeh, parent, turretStats, turretNum, curMuzzle ) )
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{
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turretEnemy = &g_entities[pVeh->turretStatus[turretNum].enemyEntNum];
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doAim = qtrue;
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}
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else if ( parent->enemy && parent->enemy->s.number < ENTITYNUM_WORLD )
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{
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if ( g_gametype.integer < GT_TEAM
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|| !OnSameTeam( parent->enemy, parent ) )
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{//either not in a team game or the enemy isn't on the same team
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turretEnemy = parent->enemy;
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doAim = qtrue;
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}
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}
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if ( turretEnemy )
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{//found one
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if ( turretEnemy->client )
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{//hold on to clients for a min of 3 seconds
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pVeh->turretStatus[turretNum].enemyHoldTime = level.time + 3000;
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}
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else
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{//hold less
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pVeh->turretStatus[turretNum].enemyHoldTime = level.time + 500;
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}
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}
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}
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if ( turretEnemy != NULL )
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{
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if ( turretEnemy->health > 0 )
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{
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// enemy is alive
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WP_CalcVehMuzzle( parent, curMuzzle );
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VectorSubtract( turretEnemy->r.currentOrigin, pVeh->m_vMuzzlePos[curMuzzle], enemyDir );
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enemyDist = VectorLengthSquared( enemyDir );
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if ( enemyDist < rangeSq )
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{
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// was in valid radius
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if ( trap_InPVS( pVeh->m_vMuzzlePos[curMuzzle], turretEnemy->r.currentOrigin ) )
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{
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// Every now and again, check to see if we can even trace to the enemy
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trace_t tr;
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vec3_t start, end;
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VectorCopy( pVeh->m_vMuzzlePos[curMuzzle], start );
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VectorCopy( turretEnemy->r.currentOrigin, end );
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trap_Trace( &tr, start, NULL, NULL, end, parent->s.number, MASK_SHOT );
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if ( tr.entityNum == turretEnemy->s.number
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|| (!tr.allsolid && !tr.startsolid ) )
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{
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doAim = qtrue; // Can see our enemy
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}
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}
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}
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}
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}
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if ( doAim )
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{
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vec3_t aimAngles;
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if ( VEH_TurretAim( pVeh, parent, turretEnemy, turretStats, vehWeapon, turretNum, curMuzzle, aimAngles ) )
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{
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VEH_TurretCheckFire( pVeh, parent, /*turretEnemy,*/ turretStats, vehWeapon, turretNum, curMuzzle );
|
|
}
|
|
}
|
|
}
|