mission: infiltrate - enemies cone of sight

Here it is, the beginning of a working cone of sight, obviously from the screenshot, a future fix will to make it that the guards can't see through walls.

If the player does walk into their cone of sight (or their view/sight range), they are set to the alert mode 'kill' as discussed before.

Still hoping to finish this action/stealth game for Android phones/tablets by the end of this month, but it will be tight.  And then I'll try and optimize it for Linux and Windows PC's because the current basic control system works best on a touch screen, so for PC's I'm thinking of introducing keyboard control.

After this game, my plans continue to be to restart my Android F1 management game and also make a small space shooter game.