from vectors import Vector2d, Vector3d, Vector4d
from matrix import Matrix3x3
from triangle import Triangle

class Engine:
	def __init__(self, width, height):
		self._width = width
		self._height = height
		
	@property
	def width(self):
		return self._width
	
	@width.setter
	def width(self, width):
		raise ValueError("Not allowed")
		
class Mesh:
	def __init__(self):
		self.triangles = []
		self.vertices = []
		
	def load_obj_file(self, path):
		lines = []
		
		with open(path, 'r') as reader:
			lines = reader.readlines()
		
		for line in lines:
			if line[0] == 'v':
				tmp = line.split(' ')
				x = float(tmp[1])
				y = float(tmp[2])
				z = float(tmp[3])
				self.vertices.append(Vector3d(x, y, z))
				
			if line[0] == 'f':
				tmp = line.split(' ')
				x = tmp[1].split('//')[0]
				y = tmp[2].split('//')[0]
				z = tmp[3].split('//')[0]
				# Subtract one because the obj file isn't zero indexed.				
				row1 = self.vertices[int(x) - 1]
				row2 = self.vertices[int(y) - 1]
				row3 = self.vertices[int(z) - 1]

				self.triangles.append(Triangle(Matrix3x3(row1, row2, row3)))
				
	def load_csv(self, path):
		values = []
		x = 0
		y = -2
		
		with open(path, 'r') as reader:
			values = reader.readlines()
		
		for i in range(0, 60, 3):
			tmp = values[i].split(',')
			row1 = Vector3d(x, y, float(tmp[6]))
			tmp = values[i + 1].split(',')
			row2 = Vector3d(x + 0.5, y, float(tmp[6]))
			tmp = values[i + 2].split(',')
			row3 = Vector3d(x, y + 0.5, float(tmp[6]))
			self.triangles.append(Triangle(Matrix3x3(row1, row2, row3)))
			self.triangles.append(Triangle(Matrix3x3(row2, row3, Vector3d(x + 0.5, y + 0.5, float(tmp[6])))))#, row2, row3)))
			x += 0.5
			#y -= 0.5
			
	def __getitem__(self, key):
		return self.triangles[key]
		
	def __len__(self):
		return len(self.triangles)