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improve boom attack movement

alut-include-path
Maikel de Vries 2017-01-17 21:14:27 +01:00
parent 075f751a89
commit 5b796dd6d0
2 changed files with 35 additions and 15 deletions
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1
planet/Objects.ocd/Goals.ocd/Defense.ocd/DefenseBoomAttack.ocd/DefCore.txt
View File

@ -11,4 +11,5 @@ VertexY=13,-13,-5,-5
VertexCNAT=8,4,1,2
VertexFriction=80,60,60,60
Rotate=1
NoStabilize=1
IncompleteActivity=1

49
planet/Objects.ocd/Goals.ocd/Defense.ocd/DefenseBoomAttack.ocd/Script.c
View File

@ -14,7 +14,7 @@ public func Construction()
GameCallEx("OnCreationRuleNoFF", this);
// Add flight effects.
CreateEffect(FxFlightRotation, 100, 1);
CreateEffect(FxFlight, 100, 10);
CreateEffect(FxFlight, 100, 2);
return;
}
@ -46,6 +46,12 @@ local FxFlight = new Effect
Construction = func()
{
this.target = GetRandomAttackTarget(Target);
if (this.target)
{
var dx = this.target->GetX() - Target->GetX();
var dy = this.target->GetY() + this.target->GetBottom() - Target->GetY();
Target->SetR(Angle(0, 0, dx, dy));
}
this->Timer(0);
},
Timer = func(int time)
@ -61,24 +67,37 @@ local FxFlight = new Effect
}
}
// Adjust angle every 10 frames.
if (!(time % 10))
// Explode if close enough to target.
if (ObjectDistance(Target, this.target) < 12)
{
var dx = this.target->GetX() - Target->GetX();
var dy = this.target->GetY() + this.target->GetBottom() - Target->GetY();
// At this distance, fly horizontally. When getting closer, gradually turn to direct flight into target.
var aim_dist = 600;
var aim_dy = dy * (aim_dist - Abs(dx)) / aim_dist;
var angle = Angle(0, 0, dx, aim_dy);
Target->SetXDir(Sin(angle, Target.FlySpeed), 100);
Target->SetYDir(-Cos(angle, Target.FlySpeed), 100);
Target->SetR(angle);
}
Target->DoFireworks(NO_OWNER);
return FX_Execute_Kill;
}
// Adjust angle to target.
var dx = this.target->GetX() - Target->GetX();
var dy = this.target->GetY() + this.target->GetBottom() - Target->GetY();
// At this distance, fly horizontally. When getting closer, gradually turn to direct flight into target.
var aim_dist = 600;
dy = dy * (aim_dist - Abs(dx)) / aim_dist;
var angle_to_target = Angle(0, 0, dx, dy);
var angle_rocket = Target->GetR();
if (angle_rocket < 0)
angle_rocket += 360;
// Gradually update the angle.
var angle_delta = angle_rocket - angle_to_target;
if (Inside(angle_delta, 0, 180) || Inside(angle_delta, -360, -180))
Target->SetR(Target->GetR() - Min(4, Abs(angle_delta)));
else if (Inside(angle_delta, -180, 0) || Inside(angle_delta, 180, 360))
Target->SetR(Target->GetR() + Min(4, Abs(angle_delta)));
// Update velocity according to angle.
Target->SetXDir(Sin(Target->GetR(), Target.FlySpeed), 100);
Target->SetYDir(-Cos(Target->GetR(), Target.FlySpeed), 100);
// Create exhaust fire.
var x = -Sin(Target->GetR(), 15);
var y = +Cos(Target->GetR(), 15);
var y = +Cos(Target->GetR(), 15);
var xdir = Target->GetXDir() / 2;
var ydir = Target->GetYDir() / 2;
Target->CreateParticle("FireDense", x, y, PV_Random(xdir - 4, xdir + 4), PV_Random(ydir - 4, ydir + 4), PV_Random(16, 38), Particles_Thrust(), 5);