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//------------------------------------------------------------------
// Iwa_Particle for Marnie
// based on ParticlesFx by Digital Video
//------------------------------------------------------------------

#include "tfxparam.h"
#include "trop.h"
#include "iwa_particles.h"
#include "iwa_particlesengine.h"
#include "hsvutil.h"
#include "timage_io.h"
#include "tofflinegl.h"

/*-----------------------------------------------------------------*/

void Iwa_Particle::create_Animation(const particles_values &values,
									int first, int last)
{
	switch (values.animation_val) {
	case Iwa_TiledParticlesFx::ANIM_CYCLE:
		__OR Iwa_TiledParticlesFx::ANIM_S_CYCLE : animswing = 0; /*frame <0 perche' c'e' il preroll dialmeno un frame*/
		CASE Iwa_TiledParticlesFx::ANIM_SR_CYCLE : animswing = random.getFloat() > 0.5 ? 1 : 0;
	DEFAULT:
		break;
	}
}

//------------------------------------------------------------------

Iwa_Particle::Iwa_Particle(int g_lifetime,
						   int seed,
							 std::map<int, TTile *> porttiles,
						   const particles_values &values,
						   const particles_ranges &ranges,
						   int howmany,
						   int first,
						   int level,
						   int last,
						   float posx, float posy,
						   bool isUpward,		/*- 初期向き -*/
						   int initSourceFrame) /*- Level内の初期フレーム位置 -*/
{
	double random_s_a_range, random_speed;
	std::map<int, float> imagereferences;
	random = TRandom(seed);
	float randomxreference = 0.0;
	float randomyreference = 0.0;

	/*- ここで、出発時の素材フレームが決定するので、ParticleOriginに渡す -*/
	create_Animation(values, 0, last);
	frame = initSourceFrame;

	this->level = level;

	x = posx;
	y = posy;

	/*- 粒子パラメータに参照画像が使われている場合、
		参照画像のとる値を先にまとめて得ておく -*/
	for (std::map<int, TTile *>::iterator it = porttiles.begin(); it != porttiles.end(); ++it) {
		if ((values.lifetime_ctrl_val == it->first ||
			 values.speed_ctrl_val == it->first ||
			 values.scale_ctrl_val == it->first ||
			 values.rot_ctrl_val == it->first
			 /*- Speed Angleを明るさでコントロールする場合 -*/
			 || (values.speeda_ctrl_val == it->first && !values.speeda_use_gradient_val)) &&
			it->second->getRaster()) {
			float tmpvalue;
			get_image_reference(it->second, values, tmpvalue, Iwa_TiledParticlesFx::GRAY_REF);
			imagereferences[it->first] = tmpvalue;
		}
	}

	/*- 寿命にControlが刺さっている場合は、その値に合わせて寿命を減ずる -*/
	if (values.lifetime_ctrl_val) {
		float lifetimereference = 0.0;
		lifetimereference = imagereferences[values.lifetime_ctrl_val];
		lifetime = g_lifetime * lifetimereference;
	} else
		lifetime = g_lifetime;

	genlifetime = lifetime;

	/*- 粒子の初期速度を得る -*/
	if (values.speed_ctrl_val && (porttiles.find(values.speed_ctrl_val) != porttiles.end())) {
		float speedreference = 0.0;
		speedreference = imagereferences[values.speed_ctrl_val];
		random_speed = values.speed_val.first + (ranges.speed_range) * speedreference;
	} else
		random_speed = values.speed_val.first + (ranges.speed_range) * random.getFloat();

	/*- 粒子の初期移動方向を得る -*/
	if (values.speeda_ctrl_val && (porttiles.find(values.speeda_ctrl_val) != porttiles.end())) {
		if (values.speeda_use_gradient_val) {
			/*- 参照画像のGradientを得る関数を利用して角度を得るモード -*/
			float dir_x, dir_y;
			get_image_gravity(porttiles[values.speeda_ctrl_val], values, dir_x, dir_y);
			if (dir_x == 0.0f && dir_y == 0.0f)
				random_s_a_range = values.speed_val.first;
			else
				random_s_a_range = atan2f(dir_x, -dir_y);
		} else {
			float speedareference = 0.0;
			speedareference = imagereferences[values.speeda_ctrl_val];
			random_s_a_range = values.speeda_val.first + (ranges.speeda_range) * speedareference;
		}
	} else /*- Controlが無ければランダム -*/
		random_s_a_range = values.speeda_val.first + (ranges.speeda_range) * random.getFloat();

	/*- 移動方向から速度のX,Y成分を得る -*/
	vx = random_speed * sin(random_s_a_range);
	vy = -random_speed * cos(random_s_a_range);

	trail = (int)(values.trail_val.first + (ranges.trail_range) * random.getFloat());
	oldx = 0;
	oldy = 0;
	/*- 質量を指定(動きにくさ) -*/
	mass = values.mass_val.first + (ranges.mass_range) * random.getFloat();
	/*- サイズを得る -*/
	if (values.scale_ctrl_val && (porttiles.find(values.scale_ctrl_val) != porttiles.end())) {
		float scalereference = 0.0f;
		scalereference = imagereferences[values.scale_ctrl_val];
		scale = values.scale_val.first + (ranges.scale_range) * scalereference;
	} else {
		/*- ONのとき、かつ、ScaleにControlが無い場合、
			粒子サイズが小さいほど(遠くにあるので)多く分布するようになる。 -*/
		if (values.perspective_distribution_val) {
			scale = (values.scale_val.first * values.scale_val.second) /
					(values.scale_val.second - (ranges.scale_range) * random.getFloat());
		} else
			scale = values.scale_val.first + (ranges.scale_range) * random.getFloat();
	}

	/*- 向きを得る -*/
	if (values.rot_ctrl_val && (porttiles.find(values.rot_ctrl_val) != porttiles.end())) {
		float anglereference = 0.0f;
		anglereference = imagereferences[values.rot_ctrl_val];
		angle = -(values.rot_val.first) - (ranges.rot_range) * anglereference;
	} else
		angle = -(values.rot_val.first) - (ranges.rot_range) * random.getFloat();

	//140212 初期粒子向き
	if (!isUpward)
		angle += 180.0f;

	/*- ランダムな動きのふれはば -*/
	if (values.randomx_ctrl_val)
		randomxreference = imagereferences[values.randomx_ctrl_val];
	if (values.randomy_ctrl_val)
		randomyreference = imagereferences[values.randomy_ctrl_val];
	create_Swing(values, ranges, randomxreference, randomyreference);

	create_Colors(values, ranges, porttiles);

	if (scale < 0.001f)
		scale = 0;

	/*- ひらひらした動き -*/
	if (values.flap_ctrl_val && (porttiles.find(values.flap_ctrl_val) != porttiles.end())) {
		//*- 参照画像のGradientを得る関数を利用して角度を得る -*/
		float dir_x, dir_y;
		float norm;
		norm = get_image_gravity(porttiles[values.flap_ctrl_val], values, dir_x, dir_y);
		if (dir_x == 0.0f && dir_y == 0.0f) {
			flap_theta = 0.0f;
			flap_phi = 0.0f;
		} else {
			flap_theta = atan2f(dir_y, dir_x) * 180.0f / 3.14159f;
			flap_phi = values.iw_flap_velocity_val * norm / mass;
		}
	} else {
		flap_theta = 0.0f;
		flap_phi = 0.0f;
	}

	initial_x = x;
	initial_y = y;
	initial_angle = angle;
	initial_scale = scale;

	curlx = 0.0f;
	curly = 0.0f;
	curlz = random.getFloat();
}

//------------------------------------------------------------------

int Iwa_Particle::check_Swing(const particles_values &values)
{
	return (values.randomx_val.first || values.randomx_val.second ||
			values.randomy_val.first || values.randomy_val.second ||
			values.rotsca_val.first || values.rotsca_val.second);
}

/*-----------------------------------------------------------------*/

void Iwa_Particle::create_Swing(const particles_values &values,
								const particles_ranges &ranges,
								double randomxreference, double randomyreference)
{
	changesignx = (int)(values.swing_val.first + random.getFloat() * (ranges.swing_range));
	changesigny = (int)(values.swing_val.first + random.getFloat() * (ranges.swing_range));
	changesigna = (int)(values.rotswing_val.first + random.getFloat() * (ranges.rotswing_range));
	if (values.swingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
		if (values.randomx_ctrl_val)
			smswingx = abs((int)values.randomx_val.first) + randomxreference * (ranges.randomx_range);
		else
			smswingx = abs((int)values.randomx_val.first) + random.getFloat() * (ranges.randomx_range);
		if (values.randomy_ctrl_val)
			smswingy = abs((int)values.randomy_val.first) + randomyreference * (ranges.randomy_range);
		else
			smswingy = abs((int)values.randomy_val.first) + random.getFloat() * (ranges.randomy_range);
		smperiodx = changesignx;
		smperiody = changesigny;
	}
	if (values.rotswingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
		smswinga = abs((int)(values.rotsca_val.first + random.getFloat() * (ranges.rotsca_range)));
		smperioda = changesigna;
	}
	signx = random.getInt(0, 1) > 0 ? 1 : -1;
	signy = random.getInt(0, 1) > 0 ? 1 : -1;
	signa = random.getInt(0, 1) > 0 ? 1 : -1;
}

/*-----------------------------------------------------------------*/

void Iwa_Particle::create_Colors(const particles_values &values,
								 const particles_ranges &ranges,
								 std::map<int, TTile *> porttiles)
{
	if (values.genfadecol_val) {
		TPixel32 color;
		if (values.gencol_ctrl_val && (porttiles.find(values.gencol_ctrl_val) != porttiles.end()))
			get_image_reference(porttiles[values.gencol_ctrl_val], values, color);
		else
			color = values.gencol_val.getPremultipliedValue(random.getFloat());
		gencol.fadecol = values.genfadecol_val;
		if (values.gencol_spread_val)
			spread_color(color, values.gencol_spread_val);
		gencol.col = color;
	} else {
		gencol.col = TPixel32::Transparent;
		gencol.fadecol = 0;
	}

	if (values.finfadecol_val) {
		TPixel32 color;
		if (values.fincol_ctrl_val && (porttiles.find(values.fincol_ctrl_val) != porttiles.end()))
			get_image_reference(porttiles[values.fincol_ctrl_val], values, color);
		else
			color = values.fincol_val.getPremultipliedValue(random.getFloat());
		fincol.rangecol = (int)values.finrangecol_val;
		fincol.fadecol = values.finfadecol_val;
		if (values.fincol_spread_val)
			spread_color(color, values.fincol_spread_val);
		fincol.col = color;
	} else {
		fincol.col = TPixel32::Transparent;
		fincol.rangecol = 0;
		fincol.fadecol = 0;
	}

	if (values.foutfadecol_val) {
		TPixel32 color;
		if (values.foutcol_ctrl_val && (porttiles.find(values.foutcol_ctrl_val) != porttiles.end()))
			get_image_reference(porttiles[values.foutcol_ctrl_val], values, color);
		else
			color = values.foutcol_val.getPremultipliedValue(random.getFloat());
		;
		foutcol.rangecol = (int)values.foutrangecol_val;
		foutcol.fadecol = values.foutfadecol_val;
		if (values.foutcol_spread_val)
			spread_color(color, values.foutcol_spread_val);
		foutcol.col = color;
	} else {
		foutcol.col = TPixel32::Transparent;
		foutcol.rangecol = 0;
		foutcol.fadecol = 0;
	}
}

/*-----------------------------------------------------------------*/

/*- modify_colors_and_opacityから呼ばれる。
	lifetimeが粒子の現在の年齢。 gencol/fincol/foutcolから色を決める -*/
void Iwa_Particle::modify_colors(TPixel32 &color, double &intensity)
{
	float percent = 0;

	if ((gencol.fadecol || fincol.fadecol) &&
		(genlifetime - lifetime) <= fincol.rangecol) {
		if (fincol.rangecol)
			percent = (genlifetime - lifetime) / (float)(fincol.rangecol);
		color = blend(gencol.col, fincol.col, percent);
		intensity = gencol.fadecol + percent * (fincol.fadecol - gencol.fadecol);
	} else if (foutcol.fadecol && lifetime <= foutcol.rangecol) {
		if (foutcol.rangecol)
			percent = 1 - (lifetime - 1) / (float)(foutcol.rangecol);
		if (fincol.rangecol && fincol.fadecol) {
			color = blend(fincol.col, foutcol.col, percent);
			intensity = fincol.fadecol + percent * (foutcol.fadecol - fincol.fadecol);
		} else {
			color = blend(gencol.col, foutcol.col, percent);
			intensity = gencol.fadecol + percent * (foutcol.fadecol - gencol.fadecol);
		}
	} else {
		if (fincol.fadecol && fincol.rangecol) {
			color = fincol.col;
			intensity = fincol.fadecol;
		} else {
			color = gencol.col;
			intensity = gencol.fadecol;
		}
	}
}

/*-----------------------------------------------------------------*/

/*- do_render から呼ばれる。各粒子の描画の直前に色を決めるところ -*/
void Iwa_Particle::modify_colors_and_opacity(const particles_values &values,
											 float curr_opacity,
											 int dist_frame,
											 TRaster32P raster32)
{
	double intensity = 0;
	TPixel32 col;
	if (gencol.fadecol || fincol.fadecol || foutcol.fadecol) {
		modify_colors(col, intensity);
		int j;
		raster32->lock();
		for (j = 0; j < raster32->getLy(); j++) {
			TPixel32 *pix = raster32->pixels(j);
			TPixel32 *endPix = pix + raster32->getLx();
			while (pix < endPix) {
				double factor = pix->m / 255.0;
				pix->r = (UCHAR)(pix->r + intensity * (factor * col.r - pix->r));
				pix->g = (UCHAR)(pix->g + intensity * (factor * col.g - pix->g));
				pix->b = (UCHAR)(pix->b + intensity * (factor * col.b - pix->b));
				pix->m = (UCHAR)(pix->m + intensity * (factor * col.m - pix->m));
				++pix;
			}
		}
		raster32->unlock();
	}

	if (curr_opacity != 1.0)
		TRop::rgbmScale(raster32, raster32, 1, 1, 1, curr_opacity);
}

/*-----------------------------------------------------------------*/
void Iwa_Particle::update_Animation(const particles_values &values,
									int first, int last, int keep)
{
	switch (values.animation_val) {
	case Iwa_TiledParticlesFx::ANIM_RANDOM:
		frame = (int)(first + random.getFloat() * (last - first));
		CASE Iwa_TiledParticlesFx::ANIM_R_CYCLE : __OR Iwa_TiledParticlesFx::ANIM_CYCLE : if (!keep || frame != keep - 1)
																							  frame = first + (frame + 1) % (last - first);
		CASE Iwa_TiledParticlesFx::ANIM_S_CYCLE : __OR Iwa_TiledParticlesFx::ANIM_SR_CYCLE:
		{
			if (!keep || frame != keep - 1) {
				if (!animswing && frame < last - 1) {
					frame = (frame + 1);
					if (frame == last - 1)
						animswing = 1;
				} else
					frame = (frame - 1);
				if (frame <= first) {
					animswing = 0;
					frame = first;
				}
			}
		}
	}
}

/*-----------------------------------------------------------------*/
void Iwa_Particle::update_Swing(const particles_values &values,
								const particles_ranges &ranges,
								struct pos_dummy &dummy,
								double randomxreference, double randomyreference)
{

	if (values.swingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
		if (smperiodx)
			dummy.x = smswingx * randomxreference * sin((TConsts::pi * changesignx) / smperiodx);
		else
			dummy.x = 0;
		if (smperiody)
			dummy.y = smswingy * randomyreference * sin((TConsts::pi * changesigny) / smperiody);
		else
			dummy.y = 0;
	} else {
		if (values.randomx_ctrl_val)
			dummy.x = (values.randomx_val.first + (ranges.randomx_range) * randomxreference);
		else
			dummy.x = (values.randomx_val.first + (ranges.randomx_range) * random.getFloat());
		if (values.randomy_ctrl_val)
			dummy.y = (values.randomy_val.first + (ranges.randomy_range) * randomyreference);
		else
			dummy.y = (values.randomy_val.first + (ranges.randomy_range) * random.getFloat());
	}

	if (values.rotswingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
		if (smperioda)
			dummy.a = smswinga * sin((TConsts::pi * changesigna) / smperioda);
		else
			dummy.a = 0;
	} else
		dummy.a = (values.rotsca_val.first + (ranges.rotsca_range) * random.getFloat());

	if (!(genlifetime - lifetime)) {
		signx = dummy.x > 0 ? 1 : -1;
		signy = dummy.y > 0 ? 1 : -1;
		signa = dummy.a > 0 ? 1 : -1;
	} else {
		dummy.x = (fabs(dummy.x)) * signx;
		dummy.y = (fabs(dummy.y)) * signy;
		dummy.a = (fabs(dummy.a)) * signa;
	}

	changesignx--;
	changesigny--;
	changesigna--;
	if (changesignx <= 0) {
		//  if(random->getFloat()<0.5);
		signx *= -1;
		changesignx = abs((int)(values.swing_val.first) + (int)(random.getFloat() * (ranges.swing_range)));
		if (values.swingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
			smperiodx = changesignx;
			if (values.randomx_ctrl_val)
				smswingx = values.randomx_val.first + randomxreference * (ranges.randomx_range);
			else
				smswingx = values.randomx_val.first + random.getFloat() * (ranges.randomx_range);
		}
	}
	if (changesigny <= 0) {
		//  if(random->getFloat()<0.5);
		signy *= -1;
		changesigny = abs((int)(values.swing_val.first) + (int)(random.getFloat() * (ranges.swing_range)));
		if (values.swingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
			smperiody = changesigny;
			if (values.randomy_ctrl_val)
				smswingy = values.randomy_val.first + randomyreference * (ranges.randomy_range);
			else
				smswingy = values.randomy_val.first + random.getFloat() * (ranges.randomy_range);
		}
	}
	if (changesigna <= 0) {
		signa *= -1;
		changesigna = abs((int)(values.rotswing_val.first) + (int)(random.getFloat() * (ranges.rotswing_range)));
		if (values.rotswingmode_val == Iwa_TiledParticlesFx::SWING_SMOOTH) {
			smperioda = changesigna;
			smswinga = values.rotsca_val.first + random.getFloat() * (ranges.rotsca_range);
		}
	}
}
/*-----------------------------------------------------------------*/
void Iwa_Particle::update_Scale(const particles_values &values,
								const particles_ranges &ranges, double scalereference,
								double scalestepreference)
{
	double scalestep;

	if (values.scale_ctrl_val && values.scale_ctrl_all_val)
		scale = values.scale_val.first + (ranges.scale_range) * scalereference;
	else {
		if (values.scalestep_ctrl_val)
			scalestep = values.scalestep_val.first + (ranges.scalestep_range) * scalestepreference;
		else
			scalestep = values.scalestep_val.first + (ranges.scalestep_range) * random.getFloat();
		if (scalestep)
			scale += scalestep;
	}
	if (scale < 0.001)
		scale = 0;
}

/*-----------------------------------------------------------------*/
void Iwa_Particle::get_image_reference(TTile *ctrl, const particles_values &values,
									   float &imagereference, int type)
{
	TRaster32P raster32 = ctrl->getRaster();
	TRaster64P raster64 = ctrl->getRaster();
	TPointD tmp(x, y);
	tmp -= ctrl->m_pos;
	imagereference = 0.0;

	if (raster32)
		raster32->lock();
	else if (raster64)
		raster64->lock();

	switch (type) {
	case Iwa_TiledParticlesFx::GRAY_REF:
		if (raster32 &&
			tmp.x >= 0 && tmp.x < raster32->getLx() &&
			tmp.y >= 0 && troundp(tmp.y) < raster32->getLy()) {
			TPixel32 pix = raster32->pixels(troundp(tmp.y))[(int)tmp.x];
			imagereference = TPixelGR8::from(pix).value / (float)TPixelGR8::maxChannelValue;
		} else if (raster64 && tmp.x >= 0 &&
				   tmp.x < raster64->getLx() &&
				   tmp.y >= 0 &&
				   troundp(tmp.y) < raster64->getLy()) {
			TPixel64 pix = raster64->pixels(troundp(tmp.y))[(int)tmp.x];
			imagereference = TPixelGR16::from(pix).value / (float)TPixelGR16::maxChannelValue;
		}

		CASE Iwa_TiledParticlesFx::H_REF : if (raster32 &&
											   tmp.x >= 0 && tmp.x < raster32->getLx() &&
											   tmp.y >= 0 && tround(tmp.y) < raster32->getLy())
		{
			float aux = (float)TPixel32::maxChannelValue;
			double h, s, v;
			TPixel32 pix = raster32->pixels(troundp(tmp.y))[(int)tmp.x];
			OLDRGB2HSV(pix.r / aux, pix.g / aux, pix.b / aux, &h, &s, &v);
			imagereference = (float)h / 360.0f;
		}
		else if (raster64 &&
				 tmp.x >= 0 && tmp.x < raster64->getLx() &&
				 tmp.y >= 0 && tround(tmp.y) < raster64->getLy())
		{
			float aux = (float)TPixel64::maxChannelValue;
			double h, s, v;
			TPixel64 pix = raster64->pixels(troundp(tmp.y))[(int)tmp.x];
			OLDRGB2HSV(pix.r / aux, pix.g / aux, pix.b / aux, &h, &s, &v);
			imagereference = (float)h / 360.0f;
		}
	}

	if (raster32)
		raster32->unlock();
	else if (raster64)
		raster64->unlock();
}

/*-----------------------------------------------------------------*/
/*- ベクタ長を返す -*/
float Iwa_Particle::get_image_gravity(TTile *ctrl1, const particles_values &values,
									  float &gx, float &gy)
{
	TRaster32P raster32 = ctrl1->getRaster();
	TRaster64P raster64 = ctrl1->getRaster();
	TPointD tmp(x, y);
	tmp -= ctrl1->m_pos;
	int radius = 2;
	gx = 0;
	gy = 0;

	float norm = 1.0f;

	if (raster32) {
		raster32->lock();
		if (raster32 &&
			tmp.x >= radius && tmp.x < raster32->getLx() - radius &&
			tmp.y >= radius && tmp.y < raster32->getLy() - radius) {
			TPixel32 *pix = &(raster32->pixels(troundp(tmp.y))[(int)tmp.x]);

			gx += 2 * TPixelGR8::from(*(pix + 1)).value;
			gx += TPixelGR8::from(*(pix + 1 + raster32->getWrap() * 1)).value;
			gx += TPixelGR8::from(*(pix + 1 - raster32->getWrap() * 1)).value;

			gx -= 2 * TPixelGR8::from(*(pix - 1)).value;
			gx -= TPixelGR8::from(*(pix - 1 + raster32->getWrap() * 1)).value;
			gx -= TPixelGR8::from(*(pix - 1 - raster32->getWrap() * 1)).value;

			gy += 2 * TPixelGR8::from(*(pix + raster32->getWrap() * 1)).value;
			gy += TPixelGR8::from(*(pix + raster32->getWrap() * 1 + 1)).value;
			gy += TPixelGR8::from(*(pix + raster32->getWrap() * 1 - 1)).value;

			gy -= 2 * TPixelGR8::from(*(pix - raster32->getWrap() * 1)).value;
			gy -= TPixelGR8::from(*(pix - raster32->getWrap() * 1 + 1)).value;
			gy -= TPixelGR8::from(*(pix - raster32->getWrap() * 1 - 1)).value;

			norm = sqrtf(gx * gx + gy * gy);
			if (norm) {
				float inorm = 0.1f / norm;
				gx = gx * inorm;
				gy = gy * inorm;
			}
		}
		raster32->unlock();

		norm /= (float)(TPixelGR8::maxChannelValue);

	} else if (raster64) {
		raster64->lock();
		if (raster64 &&
			tmp.x >= radius && tmp.x < raster64->getLx() - radius &&
			tmp.y >= radius && tmp.y < raster64->getLy() - radius) {
			TPixel64 *pix = &(raster64->pixels(troundp(tmp.y))[(int)tmp.x]);

			gx += 2 * TPixelGR16::from(*(pix + 1)).value;
			gx += TPixelGR16::from(*(pix + 1 + raster64->getWrap() * 1)).value;
			gx += TPixelGR16::from(*(pix + 1 - raster64->getWrap() * 1)).value;

			gx -= 2 * TPixelGR16::from(*(pix - 1)).value;
			gx -= TPixelGR16::from(*(pix - 1 + raster64->getWrap() * 1)).value;
			gx -= TPixelGR16::from(*(pix - 1 - raster64->getWrap() * 1)).value;

			gy += 2 * TPixelGR16::from(*(pix + raster64->getWrap() * 1)).value;
			gy += TPixelGR16::from(*(pix + raster64->getWrap() * 1 + 1)).value;
			gy += TPixelGR16::from(*(pix + raster64->getWrap() * 1 - 1)).value;

			gy -= 2 * TPixelGR16::from(*(pix - raster64->getWrap() * 1)).value;
			gy -= TPixelGR16::from(*(pix - raster64->getWrap() * 1 + 1)).value;
			gy -= TPixelGR16::from(*(pix - raster64->getWrap() * 1 - 1)).value;

			norm = sqrtf(gx * gx + gy * gy);
			if (norm) {
				float inorm = 0.1 / norm;
				gx = gx * inorm;
				gy = gy * inorm;
			}
		}

		raster64->unlock();
		norm /= (float)(TPixelGR16::maxChannelValue);
	}
	return norm;
}

/*-----------------------------------------------------------------*/

bool Iwa_Particle::get_image_curl(TTile *ctrl1,
								  const particles_values &values,
								  float &cx, float &cy)
{
	TRaster32P raster32 = ctrl1->getRaster();
	TRaster64P raster64 = ctrl1->getRaster();
	TPointD tmp(x, y);
	tmp -= ctrl1->m_pos;
	int radius = 4;
	cx = 0;
	cy = 0;

	bool ret;

	if (raster32) {
		raster32->lock();
		if (raster32 &&
			tmp.x >= radius + 1 && tmp.x < raster32->getLx() - radius - 1 &&
			tmp.y >= radius + 1 && tmp.y < raster32->getLy() - radius - 1) {
			TPixel32 *pix = &(raster32->pixels(troundp(tmp.y))[(int)tmp.x]);

			cx = -TPixelGR8::from(*(pix + radius * raster32->getWrap())).value + TPixelGR8::from(*(pix - radius * raster32->getWrap())).value;
			cy = TPixelGR8::from(*(pix + radius)).value - TPixelGR8::from(*(pix - radius)).value;
			ret = true;
		} else
			ret = false;
		raster32->unlock();
	} else if (raster64) {
		raster64->lock();
		if (raster64 &&
			tmp.x >= radius + 1 && tmp.x < raster64->getLx() - radius - 1 &&
			tmp.y >= radius + 1 && tmp.y < raster64->getLy() - radius - 1) {
			TPixel64 *pix = &(raster64->pixels(troundp(tmp.y))[(int)tmp.x]);

			cx = -TPixelGR16::from(*(pix + radius * raster64->getWrap())).value + TPixelGR16::from(*(pix - radius * raster64->getWrap())).value;
			cy = TPixelGR16::from(*(pix + radius)).value - TPixelGR16::from(*(pix - radius)).value;
			cx /= 256.0f;
			cy /= 256.0f;
			ret = true;
		} else
			ret = false;
		raster64->unlock();
	}
	return ret;
}

/*-----------------------------------------------------------------*/

void Iwa_Particle::get_image_reference(TTile *ctrl1,
									   const particles_values &values,
									   TPixel32 &color)
{
	TRaster32P raster32 = ctrl1->getRaster();
	TRaster64P raster64 = ctrl1->getRaster();

	TPointD tmp(x, y);
	tmp -= ctrl1->m_pos;

	if (raster32 &&
		tmp.x >= 0 && tmp.x < raster32->getLx() &&
		tmp.y >= 0 && troundp(tmp.y) < raster32->getLy()) {
		color = raster32->pixels(troundp(tmp.y))[(int)tmp.x];
	} else if (raster64 &&
			   tmp.x >= 0 && tmp.x < raster64->getLx() &&
			   tmp.y >= 0 && troundp(tmp.y) < raster64->getLy()) {
		TPixel64 pix64 = raster64->pixels(troundp(tmp.y))[(int)tmp.x];
		color = TPixel32((int)pix64.r / 256, (int)pix64.g / 256, (int)pix64.b / 256, (int)pix64.m / 256);
	}
	/*- 参照画像のBBoxの外側で、粒子の色を透明にする -*/
	else
		color = TPixel32::Transparent;
}

/*-----------------------------------------------------------------*/

void Iwa_Particle::get_base_image_texture(TTile *ctrl1,
										  const particles_values &values,
										  TRasterP texRaster,
										  const TRectD &texBBox,
										  const TRenderSettings &ri)
{
	/*- ベースの絵を粒子の初期位置にあわせ移動させる -*/
	TPointD pos(initial_x, initial_y);
	pos = ri.m_affine * pos;
	TRotation rotM(-initial_angle);
	TScale scaleM(1.0);
	TAffine M = TTranslation(-texBBox.getP00()) * scaleM * rotM * TTranslation(-pos + ctrl1->m_pos);

	TRaster32P baseRas32 = ctrl1->getRaster();
	TRaster64P baseRas64 = ctrl1->getRaster();
	if (baseRas32) {
		baseRas32->lock();

		/*- 粒子と同サイズのラスタを用意 -*/
		TRaster32P kirinukiBaseRas(texRaster->getSize());
		kirinukiBaseRas->lock();
		TRaster32P texRas32 = texRaster;
		texRas32->lock();
		/*- そこにquickput -*/
		TRop::quickPut(kirinukiBaseRas, baseRas32, M);

		/*- 粒子のRGBをベース絵で置換していく -*/
		for (int j = 0; j < texRaster->getLy(); j++) {
			TPixel32 *pix = texRas32->pixels(j);
			TPixel32 *endPix = pix + texRas32->getLx();
			TPixel32 *basePix = kirinukiBaseRas->pixels(j);
			while (pix < endPix) {
				double factor = pix->m / 255.0;
				pix->r = (UCHAR)(factor * basePix->r);
				pix->g = (UCHAR)(factor * basePix->g);
				pix->b = (UCHAR)(factor * basePix->b);
				pix->m = (UCHAR)(factor * basePix->m);

				++pix;
				++basePix;
			}
		}

		kirinukiBaseRas->unlock();
		baseRas32->unlock();
		texRas32->unlock();
	} else if (baseRas64) {
		baseRas64->lock();

		/*- 粒子と同サイズのラスタを用意 -*/
		TRaster64P kirinukiBaseRas(texRaster->getSize());
		kirinukiBaseRas->lock();
		TRaster64P texRas64 = texRaster;
		texRas64->lock();
		/*- そこにquickput -*/
		TRop::quickPut(kirinukiBaseRas, baseRas64, M);

		/*- 粒子のRGBをベース絵で置換していく -*/
		for (int j = 0; j < texRaster->getLy(); j++) {
			TPixel64 *pix = texRas64->pixels(j);
			TPixel64 *endPix = pix + texRas64->getLx();
			TPixel64 *basePix = kirinukiBaseRas->pixels(j);
			while (pix < endPix) {
				double factor = (double)pix->m / (double)TPixel64::maxChannelValue;
				pix->r = (TPixel64::Channel)(factor * basePix->r);
				pix->g = (TPixel64::Channel)(factor * basePix->g);
				pix->b = (TPixel64::Channel)(factor * basePix->b);
				pix->m = (TPixel64::Channel)(factor * basePix->m);

				++pix;
				++basePix;
			}
		}

		kirinukiBaseRas->unlock();
		baseRas64->unlock();
		texRas64->unlock();
	}
}

/*-----------------------------------------------------------------*/

void Iwa_Particle::get_base_image_color(TTile *ctrl1,
										const particles_values &values,
										TRasterP texRaster,
										const TRectD &texBBox,
										const TRenderSettings &ri)
{
	/*- まず、色を拾う -*/
	TPixel32 color;
	TRaster32P baseRas32 = ctrl1->getRaster();
	TRaster64P baseRas64 = ctrl1->getRaster();

	TPointD tmp(initial_x, initial_y);

	tmp = ri.m_affine * tmp;

	tmp -= ctrl1->m_pos;
	if (baseRas32 &&
		tmp.x >= 0 && tmp.x < baseRas32->getLx() &&
		tmp.y >= 0 && troundp(tmp.y) < baseRas32->getLy()) {
		color = baseRas32->pixels(troundp(tmp.y))[(int)tmp.x];
	} else if (baseRas64 &&
			   tmp.x >= 0 && tmp.x < baseRas64->getLx() &&
			   tmp.y >= 0 && troundp(tmp.y) < baseRas64->getLy()) {
		TPixel64 pix64 = baseRas64->pixels(troundp(tmp.y))[(int)tmp.x];
		color = TPixel32((int)pix64.r / 256, (int)pix64.g / 256, (int)pix64.b / 256, (int)pix64.m / 256);
	} else
		color = TPixel32::Transparent;

	TRaster32P texRas32 = texRaster;
	TRaster64P texRas64 = texRaster;
	if (texRas32) {
		texRas32->lock();
		for (int j = 0; j < texRas32->getLy(); j++) {
			TPixel32 *pix = texRas32->pixels(j);
			TPixel32 *endPix = pix + texRas32->getLx();
			while (pix < endPix) {
				double factor = pix->m / (double)TPixel32::maxChannelValue;
				pix->r = (UCHAR)(factor * color.r);
				pix->g = (UCHAR)(factor * color.g);
				pix->b = (UCHAR)(factor * color.b);
				pix->m = (UCHAR)(factor * color.m);
				++pix;
			}
		}
		texRas32->unlock();
	} else if (texRas64) {
		texRas64->lock();
		TPixel64 color64(color.r * 256, color.g * 256, color.b * 256, color.m * 256);
		for (int j = 0; j < texRas64->getLy(); j++) {
			TPixel64 *pix = texRas64->pixels(j);
			TPixel64 *endPix = pix + texRas64->getLx();
			while (pix < endPix) {
				double factor = pix->m / (double)TPixel64::maxChannelValue;
				pix->r = (USHORT)(factor * color64.r);
				pix->g = (USHORT)(factor * color64.g);
				pix->b = (USHORT)(factor * color64.b);
				pix->m = (USHORT)(factor * color64.m);
				++pix;
			}
		}
		texRas64->unlock();
	}
}

/*-----------------------------------------------------------------*/
/*- 照明モードのとき、その明るさを色に格納 -*/
void Iwa_Particle::set_illuminated_colors(float illuminant,
										  TRasterP texRaster)
{
	TRaster32P texRas32 = texRaster;
	TRaster64P texRas64 = texRaster;
	if (texRas32) {
		texRas32->lock();
		TPixel32::Channel val = (TPixel32::Channel)(illuminant * TPixel32::maxChannelValue);
		for (int j = 0; j < texRas32->getLy(); j++) {
			TPixel32 *pix = texRas32->pixels(j);
			TPixel32 *endPix = pix + texRas32->getLx();
			while (pix < endPix) {
				double factor = pix->m / (double)TPixel32::maxChannelValue;
				pix->r = (UCHAR)(factor * val);
				pix->g = (UCHAR)(factor * val);
				pix->b = (UCHAR)(factor * val);
				++pix;
			}
		}
		texRas32->unlock();
	} else if (texRas64) {
		texRas64->lock();
		TPixel64::Channel val = (TPixel64::Channel)(illuminant * TPixel64::maxChannelValue);
		for (int j = 0; j < texRas64->getLy(); j++) {
			TPixel64 *pix = texRas64->pixels(j);
			TPixel64 *endPix = pix + texRas64->getLx();
			while (pix < endPix) {
				double factor = pix->m / (double)TPixel64::maxChannelValue;
				pix->r = (USHORT)(factor * val);
				pix->g = (USHORT)(factor * val);
				pix->b = (USHORT)(factor * val);
				++pix;
			}
		}
		texRas64->unlock();
	}
}

/*-----------------------------------------------------------------*/

void Iwa_Particle::spread_color(TPixel32 &color, double range)
{
	int randcol = (int)((random.getFloat() - 0.5) * range);
	int r = color.r + randcol;
	int g = color.g + randcol;
	int b = color.b + randcol;
	color.r = (UCHAR)tcrop<TINT32>(r, (TINT32)0, (TINT32)255);
	color.g = (UCHAR)tcrop<TINT32>(g, (TINT32)0, (TINT32)255);
	color.b = (UCHAR)tcrop<TINT32>(b, (TINT32)0, (TINT32)255);
}

/*-----------------------------------------------------------------*/

/*-----------------------------------------------
 Iwa_Particles_Engine::roll_particles から呼ばれる
 粒子の移動
-----------------------------------------------*/

void Iwa_Particle::move(std::map<int, TTile *> porttiles,
						const particles_values &values,
						const particles_ranges &ranges,
						float windx, float windy,
						float xgravity, float ygravity,
						float dpicorr,
						int lastframe)
{
	struct pos_dummy dummy;
	float frictx, fricty;
	std::map<int, float> imagereferences;
	dummy.x = dummy.y = dummy.a = 0.0;
	frictx = fricty = 0.0;

	float frictreference = 1;
	float scalereference = 0;
	float scalestepreference = 0;
	float randomxreference = 1;
	float randomyreference = 1;

	/*-  移動に用いるパラメータに参照画像が刺さっている場合は、あらかじめ取得しておく -*/
	for (std::map<int, TTile *>::iterator it = porttiles.begin(); it != porttiles.end(); ++it) {
		if ((values.friction_ctrl_val == it->first ||
			 values.scale_ctrl_val == it->first ||
			 values.scalestep_ctrl_val == it->first ||
			 values.randomx_ctrl_val == it->first ||
			 values.randomy_ctrl_val == it->first) &&
			it->second->getRaster()) {
			float tmpvalue;
			get_image_reference(it->second, values, tmpvalue, Iwa_TiledParticlesFx::GRAY_REF);
			imagereferences[it->first] = tmpvalue;
		}
	}

	if (values.randomx_ctrl_val)
		randomxreference = imagereferences[values.randomx_ctrl_val];
	if (values.randomy_ctrl_val)
		randomyreference = imagereferences[values.randomy_ctrl_val];

	if (check_Swing(values))
		update_Swing(values, ranges, dummy, randomxreference, randomyreference);

	if (values.friction_ctrl_val)
		frictreference = imagereferences[values.friction_ctrl_val];

	if (values.scale_ctrl_val)
		scalereference = imagereferences[values.scale_ctrl_val];
	if (values.scalestep_ctrl_val)
		scalestepreference = imagereferences[values.scalestep_ctrl_val];
	lifetime--;
	oldx = x;
	oldy = y;

	if (values.gravity_ctrl_val && (porttiles.find(values.gravity_ctrl_val) != porttiles.end())) {
		get_image_gravity(porttiles[values.gravity_ctrl_val], values, xgravity, ygravity);
		xgravity *= values.gravity_val;
		ygravity *= values.gravity_val;
	}

	if (values.friction_val * frictreference) {
		if (vx) {
			frictx = vx * (1.0f + values.friction_val * frictreference) + (10.0f / vx) * values.friction_val * frictreference;
			if ((frictx / vx) < 0.0f)
				frictx = 0.0f;
			vx = frictx;
		}
		if (!frictx && fabs(values.friction_val * frictreference * 10.0f) > fabs(xgravity)) {
			xgravity = 0.0f;
			dummy.x = 0.0f;
			dummy.a = 0.0f;
			windx = 0.0f;
		}

		if (vy) {
			fricty = vy * (1.0f + values.friction_val * frictreference) + (10.0f / vy) * values.friction_val * frictreference;
			if ((fricty / vy) < 0.0f)
				fricty = 0.0f;
			vy = fricty;
		}
		if (!fricty && fabs(values.friction_val * frictreference * 10.0f) > fabs(ygravity)) {
			ygravity = 0.0f;
			dummy.y = 0.0f;
			dummy.a = 0.0f;
			windy = 0.0f;
		}
	}

	/*- 重力を徐々に付けていく処理を入れる -*/
	if (genlifetime - lifetime < values.iw_gravityBufferFrame_val) {
		float ratio = (float)(genlifetime - lifetime) / (float)values.iw_gravityBufferFrame_val;
		xgravity *= ratio;
		ygravity *= ratio;
	}

	/*- 重力の寄与 -*/
	vx += xgravity * mass;
	vy += ygravity * mass;

	/*- カールノイズ的動き 奥行き持たせる -*/
	if (values.curl_ctrl_1_val &&
		(porttiles.find(values.curl_ctrl_1_val) != porttiles.end())) {
		float tmpCurlx, tmpCurly;
		if (get_image_curl(porttiles[values.curl_ctrl_1_val], values, tmpCurlx, tmpCurly)) {
			if (values.curl_ctrl_2_val && (porttiles.find(values.curl_ctrl_2_val) != porttiles.end())) {
				float tmpCurlx2, tmpCurly2;
				if (get_image_curl(porttiles[values.curl_ctrl_2_val], values, tmpCurlx2, tmpCurly2)) {
					float length1 = sqrtf(tmpCurlx * tmpCurlx + tmpCurly * tmpCurly);
					float length2 = sqrtf(tmpCurlx2 * tmpCurlx2 + tmpCurly2 * tmpCurly2);
					float length = length1 * curlz + length2 * (1.0f - curlz);

					tmpCurlx = tmpCurlx * curlz + tmpCurlx2 * (1.0f - curlz);
					tmpCurly = tmpCurly * curlz + tmpCurly2 * (1.0f - curlz);
					float tmpLen = tmpCurlx * tmpCurlx + tmpCurly * tmpCurly;
					if (tmpLen > 0.0f) {
						tmpLen = sqrtf(tmpLen);
						tmpCurlx *= length / tmpLen;
						tmpCurly *= length / tmpLen;
					}
				}
			}

			tmpCurlx *= values.curl_val * mass;
			tmpCurly *= values.curl_val * mass;

			/*- ローパスフィルタをかます -*/
			curlx = 0.5f * curlx + 0.5f * tmpCurlx;
			curly = 0.5f * curly + 0.5f * tmpCurly;

			vx = vx * 0.5 + curlx;
			vy = vy * 0.5 + curly;
		}
	}

	/*- 現在位置に速度を足す -*/
	if (values.speedscale_val) {
		float scalecorr = scale / dpicorr;
		x += (vx + windx + dummy.x) * scalecorr;
		y += (vy + windy + dummy.y) * scalecorr;
	} else {
		x += vx + windx + dummy.x;
		y += vy + windy + dummy.y;
	}
	/*- 粒子の向きを計算 -*/
	angle -= values.rotspeed_val + dummy.a;

	if (!(lifetime % values.step_val) || (frame < 0)) {
		update_Animation(values, 0, lastframe, 0);
	}

	update_Scale(values, ranges, scalereference, scalestepreference);

	/*-  ひらひら -*/
	if (values.flap_ctrl_val && (porttiles.find(values.flap_ctrl_val) != porttiles.end())) {
		/*- 参照画像のGradientを得る関数を利用して角度を得る -*/
		float dir_x, dir_y;
		double norm;
		norm = get_image_gravity(porttiles[values.flap_ctrl_val], values, dir_x, dir_y);
		if (dir_x == 0.0f && dir_y == 0.0f) {
		} else {
			float newTheta = atan2f(dir_y, dir_x) * 180.0f / 3.14159f;

			/*- Thetaを補間する。右回り/左回りで近いほうを選ぶ -*/
			if (newTheta > flap_theta && newTheta - flap_theta > 180.0f)
				newTheta -= 360.0f;
			else if (newTheta < flap_theta && flap_theta - newTheta > 180.0f)
				newTheta += 360.0f;
			flap_theta = flap_theta * (1.0f - values.iw_flap_dir_sensitivity_val) +
						 newTheta * values.iw_flap_dir_sensitivity_val;
			if (flap_theta < 0.0f)
				flap_theta += 360.0f;
			else if (flap_theta > 360.0f)
				flap_theta -= 360.0f;

			flap_phi += values.iw_flap_velocity_val * norm / mass;

			while (flap_phi > 360.0f)
				flap_phi -= 360.0f;
		}
	}
}

/*-----------------------------------------------------------------*/

double Iwa_Particle::set_Opacity(std::map<int, TTile *> porttiles,
								 const particles_values &values, float opacity_range, double dist_frame)
{
	double opacity = 1.0, trailcorr;

	if (values.fadein_val && (genlifetime - lifetime) < values.fadein_val)
		opacity *= (genlifetime - lifetime - 1) / (values.fadein_val);
	if (values.fadeout_val && lifetime < values.fadeout_val)
		opacity *= (lifetime) / values.fadeout_val;

	if (trail) {
		trailcorr = values.trailopacity_val.first + (values.trailopacity_val.second - values.trailopacity_val.first) * (1 - (dist_frame) / trail);
		opacity *= trailcorr;
	}
	if (values.opacity_ctrl_val && (porttiles.find(values.opacity_ctrl_val) != porttiles.end())) {
		float opacityreference = 0.0f;
		get_image_reference(porttiles[values.opacity_ctrl_val], values, opacityreference, Iwa_TiledParticlesFx::GRAY_REF);
		opacity = values.opacity_val.first + (opacity_range)*opacityreference * opacity;
	} else
		opacity = values.opacity_val.first + opacity_range * opacity;
	return opacity;
}