Initial Prey Game integration support.

2026-08-17 11:00:38 +02:00 · 2026-05-05 15:01:01 -07:00
parent a6c6f1ed26
commit 8d5f678b25
552 changed files with 265551 additions and 209 deletions
@@ -0,0 +1,129 @@
+// Game_JumpZone.cpp
+//
+
+#include "precompiled.h"
+#pragma hdrstop
+
+#include "prey_local.h"
+
+
+const idEventDef EV_ResetSlopeCheck("<resetslopecheck>", "d");
+
+CLASS_DECLARATION(hhTrigger, hhJumpZone)
+	EVENT( EV_Touch,			hhJumpZone::Event_Touch )
+	EVENT( EV_Enable,			hhJumpZone::Event_Enable )
+	EVENT( EV_Disable,			hhJumpZone::Event_Disable )
+	EVENT( EV_ResetSlopeCheck,	hhJumpZone::Event_ResetSlopeCheck )
+END_CLASS
+
+void hhJumpZone::Spawn(void) {
+
+	velocity = spawnArgs.GetVector("velocity");
+	pitchDegrees = spawnArgs.GetFloat("jumpPitch");
+	GetPhysics()->SetContents( CONTENTS_TRIGGER );
+}
+
+void hhJumpZone::Save(idSaveGame *savefile) const {
+	savefile->WriteVec3( velocity );
+	savefile->WriteFloat( pitchDegrees );
+}
+
+void hhJumpZone::Restore( idRestoreGame *savefile ) {
+	savefile->ReadVec3( velocity );
+	savefile->ReadFloat( pitchDegrees );
+}
+
+
+// Given a pitch angle, calculate a speed to get us to destination
+static float JumpBallistics( const idVec3 &start, const idVec3 &end, float pitch, float gravity ) {
+/*
+	speed = sqrt(
+					-0.5f * gravity * ( x / cos(pitch) )^2
+					-----------------------------------------
+					y - x * tan(pitch)
+				);
+*/
+	float pitchRadians = DEG2RAD(pitch);
+	float speed = 0.0f;
+	idVec3 toTarget = end - start;
+	float dist = toTarget.Length();
+	float a = dist / idMath::Cos(pitchRadians);
+	float num = -0.5f * gravity * a*a;
+	float den = toTarget.z - dist * idMath::Tan(pitchRadians);
+	if (den != 0.0f) {
+		speed = idMath::Sqrt( num / den );
+	}
+	return speed;
+}
+
+idVec3 hhJumpZone::CalculateJumpVelocity() {
+	idVec3 destination = GetOrigin() + idVec3(0,0,200);
+	if (targets.Num() == 0 || !targets[0].IsValid()) {
+		// Use explicit velocity
+		return velocity;
+	}
+
+	destination = targets[0]->GetOrigin();
+
+	idVec3 toTarget = destination - GetOrigin();
+
+	// Given the angle, calculate a speed to get us to destination
+	float speed = JumpBallistics(GetOrigin(), destination, pitchDegrees, DEFAULT_GRAVITY);
+	
+	idAngles ang;
+	ang.Set(-pitchDegrees, toTarget.ToYaw(), 0.0f);
+	return ang.ToForward() * speed;
+}
+
+/*
+================
+hhJumpZone::Event_Enable
+================
+*/
+void hhJumpZone::Event_Enable( void ) {
+	GetPhysics()->SetContents( CONTENTS_TRIGGER );
+}
+
+/*
+================
+hhJumpZone::Event_Disable
+================
+*/
+void hhJumpZone::Event_Disable( void ) {
+	GetPhysics()->SetContents( 0 );
+}
+
+
+/*
+================
+hhJumpZone::Event_Touch
+================
+*/
+void hhJumpZone::Event_Touch( idEntity *other, trace_t *trace ) {
+	if (other) {
+		// Enable slope checks on player in case it was turned off by gravity zone.  Need it on to
+		// recognize getting thrown off the ground
+		if (other->IsType( hhPlayer::Type ) && other->GetPhysics()->IsType(hhPhysics_Player::Type) ) {
+			static_cast<hhPhysics_Player*>(other->GetPhysics())->SetSlopeCheck(true);
+			// Post an event to turn it back off?
+			other->PostEventMS(&EV_ResetSlopeCheck, 200, other->entityNumber);
+		}
+		other->GetPhysics()->SetLinearVelocity( CalculateJumpVelocity() );
+	}
+}
+
+void hhJumpZone::Event_ResetSlopeCheck(int entNum) {
+	idEntity *entityList[100];
+
+	// If the player is still encroaching on an inward gravity zone, reset slope check (off)
+	idEntity *player = gameLocal.entities[entNum];
+	if (player && player->IsType(hhPlayer::Type) && player->GetPhysics()->IsType(hhPhysics_Player::Type)) {
+		int num = gameLocal.clip.EntitiesTouchingBounds(player->GetPhysics()->GetAbsBounds(), CONTENTS_TRIGGER, entityList, 100);
+		for (int ix=0; ix<num; ix++) {
+			if (entityList[ix] && entityList[ix]->IsType(hhGravityZoneInward::Type)) {
+				static_cast<hhPhysics_Player*>(player->GetPhysics())->SetSlopeCheck(false);
+				break;
+			}
+		}
+	}
+}