Method EmitWaterPolys

client/src/main/java/jake2/client/render/fast/Warp.java:277–312

EmitWaterPolys Does a water warp on the pre-fragmented glpoly_t chain

(msurface_t fa)

	 * Does a water warp on the pre-fragmented glpoly_t chain
	 */
	void EmitWaterPolys(msurface_t fa)
	{
		float rdt = r_newrefdef.time;

		float scroll;
		if ((fa.texinfo.flags & Defines.SURF_FLOWING) != 0)
			scroll = -64 * ( (r_newrefdef.time*0.5f) - (int)(r_newrefdef.time*0.5f) );
		else
			scroll = 0;
		
		int i;
		float s, t, os, ot;
		glpoly_t p, bp;
        for (bp = fa.polys; bp != null; bp = bp.next) {
            p = bp;

            gl.glBegin(GL_TRIANGLE_FAN);
            for (i = 0; i < p.numverts; i++) {
                os = p.s1(i);
                ot = p.t1(i);

                s = os
                        + Warp.SIN[(int) ((ot * 0.125f + r_newrefdef.time) * TURBSCALE) & 255];
                s += scroll;
                s *= (1.0f / 64);

                t = ot
                        + Warp.SIN[(int) ((os * 0.125f + rdt) * TURBSCALE) & 255];
                t *= (1.0f / 64);

                gl.glTexCoord2f(s, t);
                gl.glVertex3f(p.x(i), p.y(i), p.z(i));
            }
            gl.glEnd();
        }
	}

//	  ===================================================================