Justin Marshall
122 lines
3.9 KiB
C++
122 lines
3.9 KiB
C++
#include "gamelib/effects/weapontracemanager.h"
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idWeaponTraceManager::idWeaponTraceManager()
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: weaponTraces{}
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, currentDeferred(0) {
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Init();
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}
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void idWeaponTraceManager::Init() {
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weaponTraces[0].Clear();
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weaponTraces[1].Clear();
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currentDeferred = 0;
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}
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void idWeaponTraceManager::Update() {
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currentDeferred ^= 1;
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weaponTraces[currentDeferred].Clear();
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}
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void idWeaponTraceManager::AddTrace(const idVec3& start,
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const idVec3& end, const idSpawnId attacker,
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const idDeclDamage* const damage) {
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idStaticList<weaponTrace_t, 6>& traces = weaponTraces[currentDeferred];
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if (traces.Num() >= traces.Max()) {
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return;
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}
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weaponTrace_t* const trace = traces.Alloc();
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trace->start = start;
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trace->end = end;
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trace->impactPoint = end;
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trace->dir.Zero();
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trace->attacker = attacker;
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trace->projectile.Invalidate();
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trace->damageDecl = damage;
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trace->radius = 0.0f;
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trace->weaponTraceType = weaponTrace_t::WEAPON_TRACE_BULLET;
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}
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void idWeaponTraceManager::AddExplosion(const idVec3& origin,
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const float radius, const idSpawnId attacker,
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const idDeclDamage* const damage) {
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idStaticList<weaponTrace_t, 6>& traces = weaponTraces[currentDeferred];
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if (traces.Num() >= traces.Max()) {
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return;
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}
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weaponTrace_t* const trace = traces.Alloc();
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trace->start = origin;
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trace->end = origin;
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trace->impactPoint = origin;
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trace->dir.Zero();
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trace->attacker = attacker;
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trace->projectile.Invalidate();
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trace->damageDecl = damage;
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trace->radius = radius;
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trace->weaponTraceType = weaponTrace_t::WEAPON_TRACE_EXPLOSION;
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}
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void idWeaponTraceManager::AddProjectile(const idVec3& origin,
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const float radius, const idSpawnId attacker,
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const idSpawnId projectile, const idDeclDamage* const damage) {
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idStaticList<weaponTrace_t, 6>& traces = weaponTraces[currentDeferred];
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if (traces.Num() >= traces.Max()) {
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return;
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}
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weaponTrace_t* const trace = traces.Alloc();
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trace->start = origin;
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trace->end = origin;
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trace->impactPoint = origin;
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trace->dir.Zero();
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trace->attacker = attacker;
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trace->projectile = projectile;
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trace->damageDecl = damage;
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trace->radius = radius;
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trace->weaponTraceType = weaponTrace_t::WEAPON_TRACE_PROJECTILE;
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}
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int idWeaponTraceManager::GetCollisions(const idBounds& bounds,
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idList<weaponTrace_t, 5>& outTraces) {
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outTraces.Clear();
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const idStaticList<weaponTrace_t, 6>& traces =
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weaponTraces[currentDeferred ^ 1];
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for (int index = 0; index < traces.Num(); ++index) {
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const weaponTrace_t& source = traces[index];
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weaponTrace_t result = source;
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switch (source.weaponTraceType) {
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case weaponTrace_t::WEAPON_TRACE_BULLET: {
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result.dir = source.end - source.start;
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float scale = 0.0f;
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if (!bounds.RayIntersection(source.start, result.dir, scale) ||
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scale < 0.0f || scale >= 1.0f) {
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continue;
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}
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result.dir.NormalizeFast();
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result.radius = 0.0f;
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break;
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}
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case weaponTrace_t::WEAPON_TRACE_EXPLOSION:
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if (!bounds.SphereIntersection(source.start, source.radius)) {
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continue;
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}
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result.end = (bounds[0] + bounds[1]) * 0.5f;
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result.impactPoint = result.end;
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result.dir = result.end - result.start;
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result.dir.NormalizeFast();
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break;
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case weaponTrace_t::WEAPON_TRACE_PROJECTILE:
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if (!bounds.SphereIntersection(source.start, source.radius)) {
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continue;
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}
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result.end = result.start;
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result.impactPoint = result.start;
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result.dir.Zero();
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break;
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default:
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continue;
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}
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outTraces.Append(result);
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}
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return outTraces.Num();
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}
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