shithub: qk1

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draw: make sure to not underflow

--- a/r_main.c

+++ b/r_main.c

@@ -751,10 +751,12 @@

 	r_drawflags = DRAW_BLEND;

 	R_EdgeDrawing();

 	// FIXME(sigrid): these need to be sorted and drawn back to front

-	for(i = cl_numvisedicts, e = ent_reject; e != nil; e = e->last_reject)

-		cl_visedicts[--i] = e;

-	for(; i < cl_numvisedicts; i++)

-		R_DrawEntity(cl_visedicts[i]);

+	if(cl_numvisedicts > 0){

+		for(i = cl_numvisedicts, e = ent_reject; e != nil && i > 0; e = e->last_reject)

+			cl_visedicts[--i] = e;

+		for(; i < cl_numvisedicts; i++)

+			R_DrawEntity(cl_visedicts[i]);

+	}

 	r_drawflags = 0;

 	if (r_dowarp)