From 0a1172b75f571685c264a8b9d8ee224bbf11381f Mon Sep 17 00:00:00 2001
From: xolatile
Date: Wed, 6 Aug 2025 22:54:55 +0200
Subject: Please do not hate me, it makes sense...

---
 src/engine/lightning.h | 123 -------------------------------------------------
 1 file changed, 123 deletions(-)
 delete mode 100644 src/engine/lightning.h

(limited to 'src/engine/lightning.h')

diff --git a/src/engine/lightning.h b/src/engine/lightning.h
deleted file mode 100644
index cec993a..0000000
--- a/src/engine/lightning.h
+++ /dev/null
@@ -1,123 +0,0 @@
-#define MAXLIGHTNINGSTEPS 64
-#define LIGHTNINGSTEP 8
-int lnjitterx[2][MAXLIGHTNINGSTEPS], lnjittery[2][MAXLIGHTNINGSTEPS];
-int lnjitterframe = 0, lastlnjitter = 0;
-
-VAR(lnjittermillis, 0, 100, 1000);
-VAR(lnjitterradius, 0, 4, 100);
-FVAR(lnjitterscale, 0, 0.5f, 10);
-VAR(lnscrollmillis, 1, 300, 5000);
-FVAR(lnscrollscale, 0, 0.125f, 10);
-FVAR(lnblendpower, 0, 0.25f, 1000);
-
-static void calclightningjitter(int frame)
-{
-	loopi(MAXLIGHTNINGSTEPS)
-	{
-		lnjitterx[lnjitterframe][i] = -lnjitterradius + rnd(2*lnjitterradius + 1);
-		lnjittery[lnjitterframe][i] = -lnjitterradius + rnd(2*lnjitterradius + 1);
-	}
-}
-
-static void setuplightning()
-{
-	if(!lastlnjitter || lastmillis-lastlnjitter > lnjittermillis)
-	{
-		if(!lastlnjitter) calclightningjitter(lnjitterframe);
-		lastlnjitter = lastmillis - (lastmillis%lnjittermillis);
-		calclightningjitter(lnjitterframe ^= 1);
-	}
-}
-
-static void renderlightning(Texture *tex, const vec &o, const vec &d, float sz)
-{
-	vec step(d);
-	step.sub(o);
-	float len = step.magnitude();
-	int numsteps = clamp(int(ceil(len/LIGHTNINGSTEP)), 2, MAXLIGHTNINGSTEPS);
-	step.div(numsteps+1);
-	int jitteroffset = detrnd(int(d.x+d.y+d.z), MAXLIGHTNINGSTEPS);
-	vec cur(o), up, right;
-	up.orthogonal(step);
-	up.normalize();
-	right.cross(up, step);
-	right.normalize();
-	float scroll = -float(lastmillis%lnscrollmillis)/lnscrollmillis,
-		  scrollscale = lnscrollscale*(LIGHTNINGSTEP*tex->ys)/(sz*tex->xs),
-		  blend = pow(clamp(float(lastmillis - lastlnjitter)/lnjittermillis, 0.0f, 1.0f), lnblendpower),
-		  jitter0 = (1-blend)*lnjitterscale*sz/lnjitterradius, jitter1 = blend*lnjitterscale*sz/lnjitterradius;
-	gle::begin(GL_TRIANGLE_STRIP);
-	loopj(numsteps)
-	{
-		vec next(cur);
-		next.add(step);
-		if(j+1==numsteps) next = d;
-		else
-		{
-			int lj = (j+jitteroffset)%MAXLIGHTNINGSTEPS;
-			next.add(vec(right).mul((jitter1*lnjitterx[lnjitterframe][lj] + jitter0*lnjitterx[lnjitterframe^1][lj])));
-			next.add(vec(up).mul((jitter1*lnjittery[lnjitterframe][lj] + jitter0*lnjittery[lnjitterframe^1][lj])));
-		}
-		vec dir1 = next, dir2 = next, across;
-		dir1.sub(cur);
-		dir2.sub(camera1->o);
-		across.cross(dir2, dir1).normalize().mul(sz);
-		gle::attribf(cur.x-across.x, cur.y-across.y, cur.z-across.z);
-			gle::attribf(scroll, 1);
-		gle::attribf(cur.x+across.x, cur.y+across.y, cur.z+across.z);
-			gle::attribf(scroll, 0);
-		scroll += scrollscale;
-		if(j+1==numsteps)
-		{
-			gle::attribf(next.x-across.x, next.y-across.y, next.z-across.z);
-				gle::attribf(scroll, 1);
-			gle::attribf(next.x+across.x, next.y+across.y, next.z+across.z);
-				gle::attribf(scroll, 0);
-		}
-		cur = next;
-	}
-	gle::end();
-}
-
-struct lightningrenderer : listrenderer
-{
-	lightningrenderer()
-		: listrenderer("packages/particles/lightning.png", 2, PT_LIGHTNING|PT_TRACK|PT_GLARE)
-	{}
-
-	void startrender()
-	{
-		glDisable(GL_CULL_FACE);
-		gle::defattrib(gle::ATTRIB_VERTEX, 3, GL_FLOAT);
-		gle::defattrib(gle::ATTRIB_TEXCOORD0, 2, GL_FLOAT);
-	}
-
-	void endrender()
-	{
-		glEnable(GL_CULL_FACE);
-	}
-
-	void update()
-	{
-		setuplightning();
-	}
-
-	void seedemitter(particleemitter &pe, const vec &o, const vec &d, int fade, float size, int gravity)
-	{
-		pe.maxfade = max(pe.maxfade, fade);
-		pe.extendbb(o, size);
-		pe.extendbb(d, size);
-	}
-
-	void renderpart(listparticle *p, const vec &o, const vec &d, int blend, int ts)
-	{
-		blend = min(blend<<2, 255);
-		if(type&PT_MOD) //multiply alpha into color
-			gle::colorub((p->color.r*blend)>>8, (p->color.g*blend)>>8, (p->color.b*blend)>>8);
-		else
-			gle::color(p->color, blend);
-		renderlightning(tex, o, d, p->size);
-	}
-};
-static lightningrenderer lightnings;
-
-- 
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