Comment 9 for bug 587251

This is implemented in r6070 and in trunk now. It works the following way: when you start dismantling a building, all buildcosts you invested into the buildings (also with former enhancements) is summed up and divided by 2 (rounding upwards). The time it takes to dismantle a building is now the sum of all wares you will get back * 45 seconds. 45 seconds is 150 % of the time it needs to consume an item in a constructionsite.

the only known issue with the dismantle site is that it will always appear as base graphic when seen in the fog of war (the same bug that we had for constructionsites). The solution that was implemented for constructionsites is not flexible enough to easily accomodate for the dismantleside. I opened bug 886664 for this.