Version analysis of SHIP_ROCK_HERMIT

This code appears in the following versions (click to see it in the source code):

6502 Second Processor and Master

Code variations between these versions are shown below.

       Name: SHIP_ROCK_HERMIT
       Type: Variable
   Category: Drawing ships
    Summary: Ship blueprint for a rock hermit (asteroid)
  Deep dive: Ship blueprints
             Comparing ship specifications

Code variation 1 of 4A variation in the comments only

This variation is blank in the 6502 Second Processor version.

Master
 The ship blueprint for the rock hermit reuses the edges and faces data from
 the asteroid, so the edges and faces data offsets are negative.


.SHIP_ROCK_HERMIT

 EQUB 7                 \ Max. canisters on demise = 7
 EQUW 80 * 80           \ Targetable area          = 80 * 80

Code variation 2 of 4Specific to an individual platform

Tap on a block to expand it, and tap it again to revert.

Master
6502SP
 EQUB LO(SHIP_ASTEROID_EDGES - SHIP_ROCK_HERMIT)   \ Edges from asteroid
 EQUB LO(SHIP_ASTEROID_FACES - SHIP_ROCK_HERMIT)   \ Faces from asteroid
 EQUB LO(SHIP_ROCK_HERMIT_EDGES - SHIP_ROCK_HERMIT)   \ Edges data offset (low)
 EQUB LO(SHIP_ROCK_HERMIT_FACES - SHIP_ROCK_HERMIT)   \ Faces data offset (low)

 EQUB 69                \ Max. edge count          = (69 - 1) / 4 = 17
 EQUB 0                 \ Gun vertex               = 0
 EQUB 50                \ Explosion count          = 11, as (4 * n) + 6 = 50
 EQUB 54                \ Number of vertices       = 54 / 6 = 9
 EQUB 21                \ Number of edges          = 21
 EQUW 0                 \ Bounty                   = 0
 EQUB 56                \ Number of faces          = 56 / 4 = 14
 EQUB 50                \ Visibility distance      = 50
 EQUB 180               \ Max. energy              = 180
 EQUB 30                \ Max. speed               = 30

Code variation 3 of 4Specific to an individual platform

Tap on a block to expand it, and tap it again to revert.

Master
6502SP
 EQUB HI(SHIP_ASTEROID_EDGES - SHIP_ROCK_HERMIT)   \ Edges from asteroid
 EQUB HI(SHIP_ASTEROID_FACES - SHIP_ROCK_HERMIT)   \ Faces from asteroid
 EQUB HI(SHIP_ROCK_HERMIT_EDGES - SHIP_ROCK_HERMIT)   \ Edges data offset (high)
 EQUB HI(SHIP_ROCK_HERMIT_FACES - SHIP_ROCK_HERMIT)   \ Faces data offset (high)

 EQUB 1                 \ Normals are scaled by    = 2^1 = 2
 EQUB %00000010         \ Laser power              = 0
                        \ Missiles                 = 2

.SHIP_ROCK_HERMIT_VERTICES

      \    x,    y,    z, face1, face2, face3, face4, visibility
 VERTEX    0,   80,    0,    15,     15,   15,    15,         31    \ Vertex 0
 VERTEX  -80,  -10,    0,    15,     15,   15,    15,         31    \ Vertex 1
 VERTEX    0,  -80,    0,    15,     15,   15,    15,         31    \ Vertex 2
 VERTEX   70,  -40,    0,    15,     15,   15,    15,         31    \ Vertex 3
 VERTEX   60,   50,    0,     5,      6,   12,    13,         31    \ Vertex 4
 VERTEX   50,    0,   60,    15,     15,   15,    15,         31    \ Vertex 5
 VERTEX  -40,    0,   70,     0,      1,    2,     3,         31    \ Vertex 6
 VERTEX    0,   30,  -75,    15,     15,   15,    15,         31    \ Vertex 7
 VERTEX    0,  -50,  -60,     8,      9,   10,    11,         31    \ Vertex 8

Code variation 4 of 4Specific to an individual platform

This variation is blank in the Master version.

6502SP
.SHIP_ROCK_HERMIT_EDGES

    \ vertex1, vertex2, face1, face2, visibility
 EDGE       0,       1,     2,     7,         31    \ Edge 0
 EDGE       0,       4,     6,    13,         31    \ Edge 1
 EDGE       3,       4,     5,    12,         31    \ Edge 2
 EDGE       2,       3,     4,    11,         31    \ Edge 3
 EDGE       1,       2,     3,    10,         31    \ Edge 4
 EDGE       1,       6,     2,     3,         31    \ Edge 5
 EDGE       2,       6,     1,     3,         31    \ Edge 6
 EDGE       2,       5,     1,     4,         31    \ Edge 7
 EDGE       5,       6,     0,     1,         31    \ Edge 8
 EDGE       0,       5,     0,     6,         31    \ Edge 9
 EDGE       3,       5,     4,     5,         31    \ Edge 10
 EDGE       0,       6,     0,     2,         31    \ Edge 11
 EDGE       4,       5,     5,     6,         31    \ Edge 12
 EDGE       1,       8,     8,    10,         31    \ Edge 13
 EDGE       1,       7,     7,     8,         31    \ Edge 14
 EDGE       0,       7,     7,    13,         31    \ Edge 15
 EDGE       4,       7,    12,    13,         31    \ Edge 16
 EDGE       3,       7,     9,    12,         31    \ Edge 17
 EDGE       3,       8,     9,    11,         31    \ Edge 18
 EDGE       2,       8,    10,    11,         31    \ Edge 19
 EDGE       7,       8,     8,     9,         31    \ Edge 20

.SHIP_ROCK_HERMIT_FACES

    \ normal_x, normal_y, normal_z, visibility
 FACE        9,       66,       81,         31      \ Face 0
 FACE        9,      -66,       81,         31      \ Face 1
 FACE      -72,       64,       31,         31      \ Face 2
 FACE      -64,      -73,       47,         31      \ Face 3
 FACE       45,      -79,       65,         31      \ Face 4
 FACE      135,       15,       35,         31      \ Face 5
 FACE       38,       76,       70,         31      \ Face 6
 FACE      -66,       59,      -39,         31      \ Face 7
 FACE      -67,      -15,      -80,         31      \ Face 8
 FACE       66,      -14,      -75,         31      \ Face 9
 FACE      -70,      -80,      -40,         31      \ Face 10
 FACE       58,     -102,      -51,         31      \ Face 11
 FACE       81,        9,      -67,         31      \ Face 12
 FACE       47,       94,      -63,         31      \ Face 13