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- added DavidPH's A_JumpIfTargetInLOS extension submission.

Browse source 
SVN r2455 (trunk)
This commit is contained in:
Christoph Oelckers 2010-07-24 06:30:52 +00:00
parent 37f55c6539
commit 2b381babed
3 changed files with 104 additions and 17 deletions
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108
src/thingdef/thingdef_codeptr.cpp
View file

@ -2541,23 +2541,38 @@ DEFINE_ACTION_FUNCTION(AActor, A_ClearTarget)
//==========================================================================
//
// A_JumpIfTargetInLOS (state label, optional fixed fov, optional bool
// projectiletarget)
// A_JumpIfTargetInLOS (state label, optional fixed fov, optional int flags,
// optional fixed dist_max, optional fixed dist_close)
//
// Jumps if the actor can see its target, or if the player has a linetarget.
// ProjectileTarget affects how projectiles are treated. If set, it will use
// the target of the projectile for seekers, and ignore the target for
// normal projectiles. If not set, it will use the missile's owner instead
// (the default).
// (the default). ProjectileTarget is now flag JLOSF_PROJECTILE. dist_max
// sets the maximum distance that actor can see, 0 means forever. dist_close
// uses special behavior if certain flags are set, 0 means no checks.
//
//==========================================================================
enum JLOS_flags
{
JLOSF_PROJECTILE=1,
JLOSF_NOSIGHT=2,
JLOSF_CLOSENOFOV=4,
JLOSF_CLOSENOSIGHT=8,
JLOSF_CLOSENOJUMP=16,
JLOSF_DEADNOJUMP=32,
JLOSF_CHECKMASTER=64,
};
DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfTargetInLOS)
{
ACTION_PARAM_START(3);
ACTION_PARAM_START(5);
ACTION_PARAM_STATE(jump, 0);
ACTION_PARAM_ANGLE(fov, 1);
ACTION_PARAM_BOOL(projtarg, 2);
ACTION_PARAM_INT(flags, 2);
ACTION_PARAM_FIXED(dist_max, 3);
ACTION_PARAM_FIXED(dist_close, 4);
angle_t an;
AActor *target;
@ -2566,7 +2581,11 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfTargetInLOS)
if (!self->player)
{
if (self->flags & MF_MISSILE && projtarg)
if (flags & JLOSF_CHECKMASTER)
{
target = self->master;
}
else if (self->flags & MF_MISSILE && (flags & JLOSF_PROJECTILE))
{
if (self->flags2 & MF2_SEEKERMISSILE)
target = self->tracer;
@ -2580,7 +2599,28 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfTargetInLOS)
if (!target) return; // [KS] Let's not call P_CheckSight unnecessarily in this case.
if (!P_CheckSight (self, target, SF_IGNOREVISIBILITY))
if ((flags & JLOSF_DEADNOJUMP) && (target->health <= 0)) return;
fixed_t distance = P_AproxDistance(target->x - self->x, target->y - self->y);
distance = P_AproxDistance(distance, target->z - self->z);
if (dist_max && (distance > dist_max)) return;
bool doCheckSight = !(flags & JLOSF_NOSIGHT);
if (dist_close && (distance < dist_close))
{
if (flags & JLOSF_CLOSENOJUMP)
return;
if (flags & JLOSF_CLOSENOFOV)
fov = 0;
if (flags & JLOSF_CLOSENOSIGHT)
doCheckSight = false;
}
if (doCheckSight && !P_CheckSight (self, target, SF_IGNOREVISIBILITY))
return;
if (fov && (fov < ANGLE_MAX))
@ -2602,9 +2642,20 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfTargetInLOS)
{
// Does the player aim at something that can be shot?
P_BulletSlope(self, &target);
}
if (!target) return;
if (!target) return;
fixed_t distance = P_AproxDistance(target->x - self->x, target->y - self->y);
distance = P_AproxDistance(distance, target->z - self->z);
if (dist_max && (distance > dist_max)) return;
if (dist_close && (distance < dist_close))
{
if (flags & JLOSF_CLOSENOJUMP)
return;
}
}
ACTION_JUMP(jump);
}
@ -2612,24 +2663,30 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfTargetInLOS)
//==========================================================================
//
// A_JumpIfInTargetLOS (state label, optional fixed fov, optional bool
// projectiletarget)
// A_JumpIfInTargetLOS (state label, optional fixed fov, optional int flags
// optional fixed dist_max, optional fixed dist_close)
//
//==========================================================================
DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfInTargetLOS)
{
ACTION_PARAM_START(3);
ACTION_PARAM_START(5);
ACTION_PARAM_STATE(jump, 0);
ACTION_PARAM_ANGLE(fov, 1);
ACTION_PARAM_BOOL(projtarg, 2);
ACTION_PARAM_INT(flags, 2);
ACTION_PARAM_FIXED(dist_max, 3);
ACTION_PARAM_FIXED(dist_close, 4);
angle_t an;
AActor *target;
ACTION_SET_RESULT(false); // Jumps should never set the result for inventory state chains!
if (self->flags & MF_MISSILE && projtarg)
if (flags & JLOSF_CHECKMASTER)
{
target = self->master;
}
else if (self->flags & MF_MISSILE && (flags & JLOSF_PROJECTILE))
{
if (self->flags2 & MF2_SEEKERMISSILE)
target = self->tracer;
@ -2643,7 +2700,28 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_JumpIfInTargetLOS)
if (!target) return; // [KS] Let's not call P_CheckSight unnecessarily in this case.
if (!P_CheckSight (target, self, SF_IGNOREVISIBILITY))
if ((flags & JLOSF_DEADNOJUMP) && (target->health <= 0)) return;
fixed_t distance = P_AproxDistance(target->x - self->x, target->y - self->y);
distance = P_AproxDistance(distance, target->z - self->z);
if (dist_max && (distance > dist_max)) return;
bool doCheckSight = !(flags & JLOSF_NOSIGHT);
if (dist_close && (distance < dist_close))
{
if (flags & JLOSF_CLOSENOJUMP)
return;
if (flags & JLOSF_CLOSENOFOV)
fov = 0;
if (flags & JLOSF_CLOSENOSIGHT)
doCheckSight = false;
}
if (doCheckSight && !P_CheckSight (target, self, SF_IGNOREVISIBILITY))
return;
if (fov && (fov < ANGLE_MAX))

4
wadsrc/static/actors/actor.txt
View file

@ -246,8 +246,8 @@ ACTOR Actor native //: Thinker
action native A_DeQueueCorpse();
action native A_LookEx(int flags = 0, float minseedist = 0, float maxseedist = 0, float maxheardist = 0, float fov = 0, state label = "");
action native A_ClearTarget();
action native A_JumpIfTargetInLOS (state label, float fov = 0, bool projectiletarget = false);
action native A_JumpIfInTargetLOS (state label, float fov = 0, bool projectiletarget = false);
action native A_JumpIfTargetInLOS (state label, float fov = 0, int flags = 0, float dist_max = 0, float dist_close = 0);
action native A_JumpIfInTargetLOS (state label, float fov = 0, int flags = 0, float dist_max = 0, float dist_close = 0);
action native A_DamageMaster(int amount, name damagetype = "none");
action native A_DamageChildren(int amount, name damagetype = "none");
action native A_DamageSiblings(int amount, name damagetype = "none");

9
wadsrc/static/actors/constants.txt
View file

@ -56,6 +56,15 @@ const int RSF_FOG = 1;
const int RSF_KEEPTARGET = 2;
const int RSF_TELEFRAG = 4;
// Flags for A_JumpIfTargetInLOS and A_JumpIfInTargetLOS
const int JLOSF_PROJECTILE = 1;
const int JLOSF_NOSIGHT = 2;
const int JLOSF_CLOSENOFOV = 4;
const int JLOSF_CLOSENOSIGHT = 8;
const int JLOSF_CLOSENOJUMP = 16;
const int JLOSF_DEADNOJUMP = 32;
const int JLOSF_CHECKMASTER = 64;
// Flags for A_ChangeVelocity
const int CVF_RELATIVE = 1;
const int CVF_REPLACE = 2;