env_explosion: Get it up to Source Engine standards.
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1 changed files with 137 additions and 46 deletions
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2016-2022 Vera Visions LLC.
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* Copyright (c) 2016-2023 Vera Visions LLC.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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@ -14,17 +14,16 @@
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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enumflags
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enum
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{
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ENVEXPLO_NODAMAGE,
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ENVEXPLO_REPEATABLE,
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ENVEXPLO_NOBALL,
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ENVEXPLO_NOSMOKE,
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ENVEXPLO_NODECAL,
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ENVEXPLO_NOSPARKS
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ENVEXPLO_NODAMAGE = 1,
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ENVEXPLO_REPEATABLE = 2,
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ENVEXPLO_NOSOUND = 64,
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ENVEXPLO_NOTUNDERWATER = 8192,
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ENVEXPLO_GENERICDAMAGE = 16384
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};
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/*!QUAKED env_explosion (1 .5 0) (-8 -8 -8) (8 8 8) ENVEXPLO_NODAMAGE ENVEXPLO_REPEATABLE ENVEXPLO_NOBALL ENVEXPLO_NOSMOKE ENVEXPLO_NODECAL ENVEXPLO_NOSPARKS
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/*!QUAKED env_explosion (1 .5 0) (-8 -8 -8) (8 8 8) NO_DAMAGE REPEATABLE x x x NO_SOUND
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# OVERVIEW
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When triggered, creates an explosion at its location.
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@ -33,14 +32,18 @@ When triggered, creates an explosion at its location.
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- "target" : Target when triggered.
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- "killtarget" : Target to kill when triggered.
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- "iMagnitude" : Magnitude of the explosion.
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- "explosion_custom_effect" : Sets a custom explosion particle effect to appear.
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- "explosion_custom_sound" : Sets a custom explosion sound to play.
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# INPUTS
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- "Explode" : Triggers the explosion effect.
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# SPAWNFLAGS
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- ENVEXPLO_NODAMAGE (1) : Make this explosion purely decorative, without radius damage.
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- ENVEXPLO_REPEATABLE (2) : Makes this explosion triggerable more than once.
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- ENVEXPLO_NOBALL (4) : Spawn no fireball.
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- ENVEXPLO_NOSMOKE (8) : Spawn no smoke.
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- ENVEXPLO_NODECAL (16) : Leave no decal upon explosion.
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- ENVEXPLO_NOSPARKS (32) : Don't spawn any sparks upon exploding.
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- NO_DAMAGE (1) : Make this explosion purely decorative, without radius damage.
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- REPEATABLE (2) : Makes this explosion triggerable more than once.
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- NO_SOUND (64) : Do not play the sound effect.
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- NOTUNDERWATER (8192) : Don't cause damage underwater.
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- GENERIC_DAMAGE (16384) : Act as if damage wasn't caused by an explosion type, making gibbing more difficult - some games may ignore it however.
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# TRIVIA
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This entity was introduced in Half-Life (1998).
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@ -52,23 +55,74 @@ public:
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void env_explosion(void);
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/* overrides */
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virtual void SpawnKey(string,string);
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virtual void Spawned(void);
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virtual void Respawn(void);
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virtual void Save(float);
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virtual void Restore(string,string);
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virtual void Trigger(entity, triggermode_t);
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virtual void SpawnKey(string,string);
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virtual void Respawn(void);
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virtual void Input(entity, string, string);
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/** Returns the radius of the explosion. */
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nonvirtual float GetExplosionRadius(void);
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/** Returns the maximum damage the explosion delivers. */
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nonvirtual int GetExplosionDamage(void);
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private:
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int m_iMagnitude;
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float m_flMaxDelay;
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int m_flRadiusOverride;
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bool m_bEnabled;
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string m_strExplosionParticle;
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string m_strExplosionSound;
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int m_iExplosionParticle;
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};
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void
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env_explosion::env_explosion(void)
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{
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m_iMagnitude = 0;
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m_flMaxDelay = 0.0f;
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m_iMagnitude = 0i;
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m_flRadiusOverride = -1;
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m_bEnabled = true;
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m_strExplosionParticle = "fx_explosion.main";
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m_strExplosionSound = "fx.explosion";
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m_iExplosionParticle = 0i;
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}
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void
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env_explosion::SpawnKey(string strKey, string strValue)
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{
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switch (strKey) {
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case "iMagnitude":
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m_iMagnitude = ReadInt(strValue);
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break;
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case "iRadiusOverride":
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m_flRadiusOverride = ReadFloat(strValue);
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break;
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case "explosion_custom_effect":
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m_strExplosionParticle = ReadString(strValue);
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break;
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case "explosion_custom_sound":
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m_strExplosionSound = ReadString(strValue);
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break;
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default:
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super::SpawnKey(strKey, strValue);
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}
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}
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void
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env_explosion::Spawned(void)
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{
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super::Spawned();
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m_iExplosionParticle = particleeffectnum(m_strExplosionParticle);
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Sound_Precache(m_strExplosionSound);
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}
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void
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env_explosion::Respawn(void)
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{
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InitPointTrigger();
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m_bEnabled = true;
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}
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@ -77,8 +131,11 @@ env_explosion::Save(float handle)
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{
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super::Save(handle);
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SaveInt(handle, "m_iMagnitude", m_iMagnitude);
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SaveFloat(handle, "m_flMaxDelay", m_flMaxDelay);
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SaveBool(handle, "m_bEnabled", m_bEnabled);
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SaveFloat(handle, "m_flRadiusOverride", m_flRadiusOverride);
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SaveString(handle, "m_strExplosionParticle", m_strExplosionParticle);
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SaveString(handle, "m_strExplosionSound", m_strExplosionSound);
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SaveInt(handle, "m_iExplosionParticle", m_iExplosionParticle);
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}
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void
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@ -88,45 +145,79 @@ env_explosion::Restore(string strKey, string strValue)
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case "m_iMagnitude":
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m_iMagnitude = ReadInt(strValue);
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break;
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case "m_flMaxDelay":
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m_flMaxDelay = ReadFloat(strValue);
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break;
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case "m_bEnabled":
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m_bEnabled = ReadBool(strValue);
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break;
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case "m_flRadiusOverride":
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m_flRadiusOverride = ReadFloat(strValue);
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break;
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case "m_strExplosionParticle":
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m_strExplosionParticle = ReadString(strValue);
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break;
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case "m_strExplosionSound":
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m_strExplosionSound = ReadString(strValue);
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break;
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case "m_iExplosionParticle":
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m_iExplosionParticle = ReadInt(strValue);
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break;
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default:
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super::Restore(strKey, strValue);
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}
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}
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void
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env_explosion::SpawnKey(string strKey, string strValue)
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{
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switch (strKey) {
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case "iMagnitude":
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m_iMagnitude = stoi(strValue);
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break;
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default:
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super::SpawnKey(strKey, strValue);
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}
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}
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void
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env_explosion::Respawn(void)
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{
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m_bEnabled = true;
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}
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void
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env_explosion::Trigger(entity act, triggermode_t state)
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{
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pointparticles(particleeffectnum("fx_explosion.main"), origin, [0,0,0], 1);
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bool shouldDamage = true;
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if (!HasSpawnFlags(ENVEXPLO_NODAMAGE)) {
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Damage_Radius(origin, this, m_iMagnitude, m_iMagnitude * 2.5f, TRUE, 0);
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if (HasSpawnFlags(ENVEXPLO_NOTUNDERWATER) == true && WaterLevel() > 0) {
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shouldDamage = false;
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} else if (HasSpawnFlags(ENVEXPLO_NODAMAGE) == true) {
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shouldDamage = false;
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}
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if (!HasSpawnFlags(ENVEXPLO_REPEATABLE)) {
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/* TODO: Should be pass the nearest surface normal? Just an idea. */
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pointparticles(m_iExplosionParticle, GetOrigin(), [0,0,0], 1);
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if (HasSpawnFlags(ENVEXPLO_NOSOUND) == false) {
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StartSoundDef(m_strExplosionSound, CHAN_BODY, true);
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}
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if (shouldDamage == true) {
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damageType_t damageType = DMG_EXPLODE;
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if (HasSpawnFlags(ENVEXPLO_GENERICDAMAGE) == true) {
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damageType = DMG_GENERIC;
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}
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Damage_Radius(GetOrigin(), this, GetExplosionDamage(), GetExplosionRadius(), damageType, 0);
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}
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if (HasSpawnFlags(ENVEXPLO_REPEATABLE) == false) {
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m_bEnabled = false;
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}
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}
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void
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env_explosion::Input(entity entityActivator, string inputName, string dataField)
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{
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switch (inputName) {
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case "Explode":
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Trigger(entityActivator, TRIG_TOGGLE);
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break;
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default:
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super::Input(entityActivator, inputName, dataField);
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}
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}
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float
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env_explosion::GetExplosionRadius(void)
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{
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return (m_flRadiusOverride == -1) ? (float)m_iMagnitude * 2.5f : m_flRadiusOverride;
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}
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int
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env_explosion::GetExplosionDamage(void)
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{
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return (m_iMagnitude);
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}
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