Exercise 2 (javascript code) a. Make a function that can draw a tree at a specific x, y location i. (It doesn’t have to be fancy, say 64X64 pixels). b. Make a function that can draw a square brick wall (64X64). (again doesn’t have to be fancy) c. Using a 2D array create a mock-up level of mountains, trees and a background. i. Before careful of draw order here. ii. Use numbers 1 = wall, 2 equals tree, break the level up into a 64X64 pixel grid. iii. Background can be a single color, however the trees and walls must stand out on it. (Background cannot be white)