Forest

Build a few trees

Use list of tuples Using list of tuples, we can put trees at selected locations with varying height and width (x,z,h,w):

data = [(-10,-20, 10,3), (-2,-18, 8,4), (15,-15, 20, 6), (20, -25, 12, 3)]

for i in data:
    tree( i[0], i[1], i[2], i[3])

Build a line of trees with for loop

Another example to build 10 trees along x-axis:

for i in range(-40, 40, 10):
    tree( i, -30, 20, 4 )

Put random material blocks at random locations

Remember in previous lesson, using randint() to generate random integers, we can put 10 blocks of different materials at random (x,y,z) locations?

Remind yourself:

# 10 different material blocks at various (x,y,z) locations
for i in range(10):
    block(randint(1,20), randint(1,20), randint(-20, -10), randint(1,64))

Many Trees together is a Forest

Build random size trees at random locations

Similarly, we can use randint() in tree() to generate a lot of trees at random locations, with random height and width.

This program is to generate 20 random sized trees at random locations:

# Forest

for n in range(1,20):
    tree(randint(-20,40), randint(-40, -10), randint(10,20), randint(2,4))

Every time we run the program Forest, we get a different looking forest,

(see pic 4-03-5)

A Fantasy Forest:

Call treeColor with colorful materials such as from 67 to 76, you can build a fantasy forest:

(pic, forestcolor)

# color forest
for n in range(1,20):
  treeColor(randint(-40,40), randint(-40, 30), randint(10,20), randint(2,4), 22, randint(67,76))

The world is getting better!