import random
import numpy
import cv2

img_path = "noise.png"
img = cv2.imread(img_path, 0)


with open("generatedTerrain.obj", 'w') as f:
	increment = 450/110
	for i in range(111):
		for j in range(111):
			height = (img[i][j] - 50)/3
			line = "v " + str(-250 + i * increment) + " " + str(height) + " " + str(-250 + j * increment)
			f.write(line + "\n")
	incrementTx = 1/110
	for i in range(111):
		for j in range(111):
			line = "vt " + str(0 + i * incrementTx) + " " + str(0 + j * incrementTx) + "\n"
			f.write(line)
	#f.write("vt 0.0 0.0\nvt 1.0 1.0\nvt 0.0 1.0\nvt 1.0 1.0\n")
	f.write("s off\n")
	f.write("vn 1.0 1.0 1.0\nvn 1.0 1.0 0.0\n\
vn 1.0 1.0 -1.0\nvn 0.0 1.0 1.0\nvn 0.0 1.0 0.0\nvn 0.0 1.0 -1.0\n")
	textureIdx = 0
	normalIdx = 0
	for i in range(111*110):
		j = i + 1
		if (j) % 111 == 0:
			pass
		else:
			lineA = "f " + str(j) + "/" + str(j) + "/" + str((normalIdx % 6) + 1) + " "
			textureIdx += 1
			lineB = str(j + 1) + "/" + str(j + 1) + "/" + str((normalIdx % 6) + 1) + " "
			textureIdx += 1
			lineC = str(j + 1 + 111) + "/" + str(j + 1 + 111) + "/" + str((normalIdx % 6) + 1) + " "
			textureIdx += 1
			lineD = str(j + 111) + "/" + str(j + 111) + "/" + str((normalIdx % 6) + 1) + "\n"
			textureIdx += 2
			normalIdx += 1
			line = lineA + lineB + lineC + lineD
#			print(line)
			f.write(line)
#			print(lineA, lineB, lineC, lineD)