Created
September 11, 2012 01:22
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| template = require './template' | |
| lighting = require './lighting' | |
| texturing = require './texturing' | |
| blocks = require '../../blocks' | |
| adjacent = vec3.create() | |
| coords = {} | |
| light = {} | |
| neighbors = {} | |
| support = require '../support' | |
| extractFace = (face, i, j, k, type, mesh, neighbors) -> | |
| {vertices} = face | |
| [a, b, c, d] = vertices | |
| texturing face, type, coords | |
| {left, bottom, right, top} = coords | |
| alpha = 1 | |
| lighting face, neighbors, light | |
| {al, bl, cl, dl} = light | |
| mesh.data.push a[0] + i, a[1] + j, a[2] + k | |
| mesh.data.push left, bottom | |
| mesh.data.push al, al, al, alpha | |
| mesh.data.push b[0] + i, b[1] + j, b[2] + k | |
| mesh.data.push right, bottom | |
| mesh.data.push bl, bl, bl, alpha | |
| mesh.data.push c[0] + i, c[1] + j, c[2] + k | |
| mesh.data.push left, top | |
| mesh.data.push cl, cl, cl, alpha | |
| mesh.data.push d[0] + i, d[1] + j, d[2] + k | |
| mesh.data.push right, top | |
| mesh.data.push dl, dl, dl, alpha | |
| mesh.data.push c[0] + i, c[1] + j, c[2] + k | |
| mesh.data.push left, top | |
| mesh.data.push cl, cl, cl, alpha | |
| mesh.data.push b[0] + i, b[1] + j, b[2] + k | |
| mesh.data.push right, bottom | |
| mesh.data.push bl, bl, bl, alpha | |
| mesh.count += 6 | |
| module.exports = extract = (voxel, i, j, k, volume, mesh, extractTemplate) -> | |
| for x in [-1..1] | |
| for y in [-1..1] | |
| for z in [-1..1] | |
| continue if y is 0 and y is 0 and z is 0 | |
| neighbors[support.chunkKey x, y, z] = volume.get i + x, j + y, k + z | |
| temp = template | |
| if extractTemplate? | |
| temp = extractTemplate | |
| for face in temp.faces | |
| # continue unless (vec3.dot face.normal, camera.forward) > 0 | |
| neighbor = volume.get i + face.normal[0], j + face.normal[1], k + face.normal[2] | |
| continue if neighbor? and not neighbor.transparent | |
| extractFace face, i, j, k, voxel, mesh, neighbors |
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