New effect: CJ101

Author: gromchek

src/gtasa/effects/custom/unsorted/CJ101Effect.cpp

@@ -0,0 +1,92 @@
+#include "util/EffectBase.h"
+#include "util/GenericUtil.h"
+
+#include <extensions/ScriptCommands.h>
+
+using namespace plugin;
+
+class CJ101Effect : public EffectBase
+{
+private:
+    const int MIN_SPAWN_SEC    = 8;
+    const int MAX_SPAWN_SEC    = 13;
+    const int planesId[5]      = {511, 512, 476, 593, 513};
+    int       timer            = 0;
+    int       planeSpawnTimer  = 0;
+
+public:
+    bool
+    CanActivate () override
+    {
+        auto *player = FindPlayerPed ();
+        return player && !player->m_nAreaCode && GameUtil::IsPlayerSafe ();
+    }
+
+    void
+    OnStart (EffectInstance *inst) override
+    {
+        timer           = 0;
+        planeSpawnTimer = inst->Random (MIN_SPAWN_SEC, MAX_SPAWN_SEC) * 1000;
+    }
+
+    void
+    OnTick (EffectInstance *inst) override
+    {
+        if (!CanActivate ()) return;
+        auto *player = FindPlayerPed ();
+
+        timer += int (GenericUtil::CalculateTick ());
+        if (timer >= planeSpawnTimer)
+        {
+            int  id = planesId[inst->Random (0, 10000) % std::size (planesId)];
+            auto playerPos = player->GetPosition ();
+            auto [pos, angle]
+                = GetPositionAndHeading (playerPos, player->GetHeading (),
+                                         inst->Random (0, 1));
+
+            pos.z += inst->Random (0, 5);
+            auto *plane = reinterpret_cast<CPlane *> (
+                GameUtil::CreateVehicle (id, pos, angle, true));
+
+            float force             = inst->Random (0.8f, 1.1f);
+            plane->m_vecMoveSpeed.x = -std::sin (angle) * force;
+            plane->m_vecMoveSpeed.y = std::cos (angle) * force;
+            plane->SetHeading (angle);
+
+            Command<eScriptCommands::COMMAND_PLANE_GOTO_COORDS> (
+                plane, playerPos.x, playerPos.y, playerPos.z, 0.0f, 0.0f);
+
+            if (id == 476) plane->SetGearUp ();
+
+            plane->m_fHealth = 249.0f;
+
+            timer -= inst->Random (MIN_SPAWN_SEC, MAX_SPAWN_SEC) * 1000;
+        }
+    }
+
+    std::pair<CVector, float>
+    GetPositionAndHeading (const CVector &playerPos, float playerAngle,
+                           bool getBehind)
+    {
+        float dirX = 100.0f * -std::sin (playerAngle);
+        float dirY = 100.0f * std::cos (playerAngle);
+
+        if (getBehind)
+        {
+            float posX = playerPos.x - dirX;
+            float posY = playerPos.y - dirY;
+            float posZ = CWorld::FindGroundZForCoord (posX, posY);
+            return {{posX, posY, posZ}, playerAngle};
+        }
+        else
+        {
+            float posX = playerPos.x + dirX;
+            float posY = playerPos.y + dirY;
+            float posZ = CWorld::FindGroundZForCoord (posX, posY);
+            playerAngle -= M_PI;
+            return {{posX, posY, posZ}, playerAngle};
+        }
+    }
+};
+
+DEFINE_EFFECT (CJ101Effect, "effect_cj101", 0);