void CParticle::Init(CRandom& random, const CCamera& camera, const SParicleEmitParameter& param, const CVector3& emitPosition )
{
float halfW = param.w * 0.5f;
float halfH = param.h * 0.5f;
TK_ASSERT(param.uvTableSize <= ARRAYSIZE(param.uvTable), "uvTable size over!!!");
CVector4 uv;
if (param.uvTableSize > 0) {
uv = param.uvTable[random.GetRandInt() % param.uvTableSize];
}
else {
uv = param.uvTable[0];
}
SShapeVertex_PT vb[] = {
{
-halfW, halfH, 0.0f, 1.0f,
uv.x, uv.y
},
{
halfW, halfH, 0.0f, 1.0f,
uv.z, uv.y
},
{
-halfW, -halfH, 0.0f, 1.0f,
uv.x, uv.w
},
{
halfW, -halfH, 0.0f, 1.0f,
uv.z, uv.w
},
};
short index[]{
0,1,2,3
};
primitive.Create(
CPrimitive::eTriangleStrip,
4,
sizeof(SShapeVertex_PT),
scShapeVertex_PT_Element,
vb,
4,
eIndexFormat16,
index
);
texture = ParticleResources().LoadTexture(param.texturePath);
shaderEffect = EffectManager().LoadEffect("Assets/presetShader/ColorTexPrim.fx");
this->camera = &camera;
this->random = &random;
life = param.life;
velocity = param.initVelocity;
//初速度に乱数を加える。
velocity.x += (((float)random.GetRandDouble() - 0.5f) * 2.0f) * param.initVelocityVelocityRandomMargin.x;
velocity.y += (((float)random.GetRandDouble() - 0.5f) * 2.0f) * param.initVelocityVelocityRandomMargin.y;
velocity.z += (((float)random.GetRandDouble() - 0.5f) * 2.0f) * param.initVelocityVelocityRandomMargin.z;
position = emitPosition;
position.x += (((float)random.GetRandDouble() - 0.5f) * 2.0f) * param.initPositionRandomMargin.x;
position.y += (((float)random.GetRandDouble() - 0.5f) * 2.0f) * param.initPositionRandomMargin.y;
position.z += (((float)random.GetRandDouble() - 0.5f) * 2.0f) * param.initPositionRandomMargin.z;
addVelocityRandomMargih = param.addVelocityRandomMargih;
gravity = param.gravity;
isFade = param.isFade;
state = eStateRun;
initAlpha = param.initAlpha;
alpha = initAlpha;
fadeTIme = param.fadeTime;
isBillboard = param.isBillboard;
brightness = param.brightness;
alphaBlendMode = param.alphaBlendMode;
mulColor = param.mulColor;
rotateZ = CMath::PI * 2.0f * (float)random.GetRandDouble();
}
