@@ -109,18 +109,34 @@ def Render_Hexagon(p_x, p_y) glTexCoord2f(0.5, 0.5) glVertex3f(tile_x, tile_y, 0.0) -# for num_vertices in (0...6) do - 6.times do |num_vertices| -# x = Math.cos(angle) -# y = Math.sin(angle) - x = $CACHE_SIN[num_vertices] - y = $CACHE_COS[num_vertices] -# angle += HEXAGON_STEP +## for num_vertices in (0...6) do +# 6.times do |num_vertices| +## x = Math.cos(angle) +## y = Math.sin(angle) +# x = $CACHE_SIN[num_vertices] +# y = $CACHE_COS[num_vertices] +# +## angle += HEXAGON_STEP +# +# glTexCoord2f((x+1)/2.0, (y+1)/2.0) +# glVertex3f(tile_x + HEXAGON_RADIUS * x, tile_y + HEXAGON_RADIUS * y, 0.0) +# end + + # Unrolls the loop above + glTexCoord2f(($CACHE_SIN[0]+1)/2.0, ($CACHE_COS[0]+1)/2.0) + glVertex3f(tile_x + HEXAGON_RADIUS * $CACHE_SIN[0], tile_y + HEXAGON_RADIUS * $CACHE_COS[0], 0.0) + glTexCoord2f(($CACHE_SIN[1]+1)/2.0, ($CACHE_COS[1]+1)/2.0) + glVertex3f(tile_x + HEXAGON_RADIUS * $CACHE_SIN[1], tile_y + HEXAGON_RADIUS * $CACHE_COS[1], 0.0) + glTexCoord2f(($CACHE_SIN[2]+1)/2.0, ($CACHE_COS[2]+1)/2.0) + glVertex3f(tile_x + HEXAGON_RADIUS * $CACHE_SIN[2], tile_y + HEXAGON_RADIUS * $CACHE_COS[2], 0.0) + glTexCoord2f(($CACHE_SIN[3]+1)/2.0, ($CACHE_COS[3]+1)/2.0) + glVertex3f(tile_x + HEXAGON_RADIUS * $CACHE_SIN[3], tile_y + HEXAGON_RADIUS * $CACHE_COS[3], 0.0) + glTexCoord2f(($CACHE_SIN[4]+1)/2.0, ($CACHE_COS[4]+1)/2.0) + glVertex3f(tile_x + HEXAGON_RADIUS * $CACHE_SIN[4], tile_y + HEXAGON_RADIUS * $CACHE_COS[4], 0.0) + glTexCoord2f(($CACHE_SIN[5]+1)/2.0, ($CACHE_COS[5]+1)/2.0) + glVertex3f(tile_x + HEXAGON_RADIUS * $CACHE_SIN[5], tile_y + HEXAGON_RADIUS * $CACHE_COS[5], 0.0) - glTexCoord2f((x+1)/2.0, (y+1)/2.0) - glVertex3f(tile_x + HEXAGON_RADIUS * x, tile_y + HEXAGON_RADIUS * y, 0.0) - end # Close the fan if HEXAGON_VERT tile.rb 42ae790669fbb4c39cd06c2f1066f460133aed1b Paul Berens pharaun666@gmail.com http://github.com/pharaun/ruby-tile/commit/c90b5c7bd435e9a7debc46e908864dad8cdc5a62 c90b5c7bd435e9a7debc46e908864dad8cdc5a62 2009-07-02T23:16:29-07:00 2009-07-02T23:16:29-07:00 unrolled the loop in the hexagon function dropped the integer#times function invocation down from 22% to 2.6% 48b18fd7ed381e62d9b86988c0289594aba467a7 Paul Berens pharaun666@gmail.com