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https://github.com/TombEngine/TombEngine.git
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82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
#include "framework.h"
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#include "Game/particle/SimpleParticle.h"
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#include "Game/items.h"
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#include "Specific/trmath.h"
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#include "Specific/setup.h"
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#include "Specific/prng.h"
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using namespace TEN::Math::Random;
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namespace TEN::Effects
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{
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std::array<SimpleParticle, 15> simpleParticles;
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SimpleParticle& getFreeSimpleParticle()
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{
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for (auto& p : simpleParticles)
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if (!p.active)
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return p;
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return simpleParticles[0];
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}
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void TriggerSnowmobileSnow(ITEM_INFO* snowMobile)
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{
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float angle = TO_RAD(snowMobile->Position.yRot);
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const float angleVariation = GenerateFloat(-10, 10) * RADIAN;
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float x = std::sin(angle + angleVariation);
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float z = std::cos(angle + angleVariation);
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x = x* -500 + snowMobile->Position.xPos;
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z = z* -500 + snowMobile->Position.zPos;
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SimpleParticle& p = getFreeSimpleParticle();
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p = {};
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p.active = true;
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p.life = GenerateFloat(8, 14);
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p.room = snowMobile->RoomNumber;
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p.ageRate = GenerateFloat(0.9, 1.3);
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float size = GenerateFloat(96, 128);
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p.worldPosition = {x, float(snowMobile->Position.yPos) - size / 2 , z};
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p.sequence = ID_SKIDOO_SNOW_TRAIL_SPRITES;
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p.size = GenerateFloat(256, 512);
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}
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void TriggerSpeedboatFoam(ITEM_INFO* boat)
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{
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for (float i = -0.5; i < 1; i += 1)
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{
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float angle = TO_RAD(boat->Position.yRot);
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float angleVariation = i*2*10 * RADIAN;
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float x = std::sin(angle + angleVariation);
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float z = std::cos(angle + angleVariation);
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x = x * -700 + boat->Position.xPos;
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z = z * -700 + boat->Position.zPos;
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SimpleParticle& p = getFreeSimpleParticle();
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p = {};
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p.active = true;
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p.life = GenerateFloat(5, 9);
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p.room = boat->RoomNumber;
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p.ageRate = GenerateFloat(0.9, 1.3);
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float size = GenerateFloat(96, 128);
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p.worldPosition = { x, float(boat->Position.yPos) - size / 2, z };
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p.sequence = ID_MOTOR_BOAT_FOAM_SPRITES;
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p.size = GenerateFloat(256, 512);
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}
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}
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void updateSimpleParticles()
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{
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for (auto& p : simpleParticles)
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{
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if (!p.active)
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continue;
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p.age+= p.ageRate;
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if (p.life < p.age)
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p.active = false;
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int numSprites = -Objects[p.sequence].nmeshes - 1;
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float normalizedAge = p.age / p.life;
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p.sprite = lerp(0, numSprites, normalizedAge);
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}
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}
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}
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