Created
November 27, 2011 00:17
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example of dungeon model as of section 8.5 of the Jax guides: http://guides.jaxgl.com/getting_started.html#drawing-the-scene
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| parse = (str) -> | |
| vec = str.split /,\s*/ | |
| return [ parseFloat(vec[0]), 0.0, parseFloat(vec[1]) ] | |
| Jax.getGlobal()['Dungeon'] = Jax.Model.create | |
| addTorches: (world) -> | |
| if @map | |
| for z in [0...@map.length] | |
| row = @map[z] | |
| for x in [0...row.length] | |
| # each apostrophe (') represents a light source | |
| if row[x] == "'" | |
| torch = LightSource.find "torch" | |
| torch.camera.setPosition x, 0, z | |
| world.addLightSource torch | |
| after_initialize: -> | |
| if map = @map | |
| @mesh = new Jax.Mesh | |
| material: "dungeon" | |
| init: (vertices, colors, texcoords, normals, indices) -> | |
| ofs = 0.5 # offset from center of each grid node | |
| row = null | |
| drawSideWall = (x, z, side) -> | |
| x += ofs * side | |
| # triangle 1 triangle 2 | |
| vertices.push x,-ofs,z-ofs, x,-ofs,z+ofs, x,ofs,z-ofs, x,ofs,z-ofs, x,-ofs,z+ofs, x,ofs,z+ofs | |
| colors.push 1,0,0,1, 1,0,0,1, 1,0,0,1, 1,0,0,1, 1,0,0,1, 1,0,0,1 | |
| texcoords.push 0,0, 1,0, 0,1, 0,1, 1,0, 1,1 | |
| normals.push -side,0,0, -side,0,0, -side,0,0, -side,0,0, -side,0,0, -side,0,0 | |
| drawFrontWall = (x, z, side) -> | |
| z -= ofs*side | |
| # triangle 1 triangle 2 | |
| vertices.push x-ofs,-ofs,z, x+ofs,-ofs,z, x-ofs,ofs,z, x-ofs,ofs,z, x+ofs,-ofs,z, x+ofs,ofs,z | |
| colors.push 0,0,1,1, 0,0,1,1, 0,0,1,1, 0,0,1,1, 0,0,1,1, 0,0,1,1 | |
| texcoords.push 0,0, 1,0, 0,1, 0,1, 1,0, 1,1 | |
| normals.push 0,0,side, 0,0,side, 0,0,side, 0,0,side, 0,0,side, 0,0,side | |
| for y in [0...map.length] | |
| row = map[y] | |
| for x in [0...row.length] | |
| ch = row[x] | |
| if ch != 'X' | |
| # walls | |
| if x == 0 || row[x-1] == 'X' then drawSideWall x, y, -1 # left | |
| if y == 0 || map[y-1][x] == 'X' then drawFrontWall x, y, 1 # front | |
| if x == row.length-1 || row[x+1] == 'X' then drawSideWall x, y, 1 # right | |
| if y == map.length-1 || map[y+1][x] == 'X' then drawFrontWall x, y, -1 # back | |
| # floor | |
| vertices.push x-0.5,-0.5,y+0.5, x-0.5,-0.5,y-0.5, x+0.5,-0.5,y-0.5 # tri 1 | |
| vertices.push x-0.5,-0.5,y+0.5, x+0.5,-0.5,y-0.5, x+0.5,-0.5,y+0.5 # tri 2 | |
| colors.push 1,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1, 1,1,1,1 | |
| texcoords.push 0,1, 0,0, 1,0, 0,1, 1,0, 1,1 | |
| normals.push 0,1,0, 0,1,0, 0,1,0, 0,1,0, 0,1,0, 0,1,0 | |
| # ceiling | |
| vertices.push x-0.5,0.5,y+0.5, x-0.5,0.5,y-0.5, x+0.5,0.5,y-0.5 # tri 1 | |
| vertices.push x-0.5,0.5,y+0.5, x+0.5,0.5,y-0.5, x+0.5,0.5,y+0.5 # tri 2 | |
| colors.push 1,1,0,1, 1,1,0,1, 1,1,0,1, 1,1,0,1, 1,1,0,1, 1,1,0,1 | |
| texcoords.push 0,1, 0,0, 1,0, 0,1, 1,0, 1,1 | |
| normals.push 0,-1,0, 0,-1,0, 0,-1,0, 0,-1,0, 0,-1,0, 0,-1,0 | |
| if @starting | |
| @starting.position = parse @starting.position | |
| @starting.direction = parse @starting.direction |
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