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Drawing ships: SHIP_THARGON

[BBC Micro disc version, Ship blueprints C]

Name: SHIP_THARGON [Show more] Type: Variable Category: Drawing ships Summary: Ship blueprint for a Thargon Deep dive: Ship blueprints
Context: See this variable in context in the source code Variations: See code variations for this variable in the different versions References: This variable is used as follows: * XX21 uses SHIP_THARGON

The ship blueprint for the Thargon reuses the edges data from the cargo canister, so the edges data offset is negative.
.SHIP_THARGON EQUB 0 + (15 << 4) \ Max. canisters on demise = 0 \ Market item when scooped = 15 + 1 = 16 (alien items) EQUW 40 * 40 \ Targetable area = 40 * 40 EQUB LO(SHIP_CANISTER_EDGES - SHIP_THARGON) \ Edges from canister EQUB LO(SHIP_THARGON_FACES - SHIP_THARGON) \ Faces data offset (low) EQUB 65 \ Max. edge count = (65 - 1) / 4 = 16 EQUB 0 \ Gun vertex = 0 EQUB 18 \ Explosion count = 3, as (4 * n) + 6 = 18 EQUB 60 \ Number of vertices = 60 / 6 = 10 EQUB 15 \ Number of edges = 15 EQUW 50 \ Bounty = 50 EQUB 28 \ Number of faces = 28 / 4 = 7 EQUB 20 \ Visibility distance = 20 EQUB 20 \ Max. energy = 20 EQUB 30 \ Max. speed = 30 EQUB HI(SHIP_CANISTER_EDGES - SHIP_THARGON) \ Edges from canister EQUB HI(SHIP_THARGON_FACES - SHIP_THARGON) \ Faces data offset (high) EQUB 2 \ Normals are scaled by = 2^2 = 4 EQUB %00010000 \ Laser power = 2 \ Missiles = 0 .SHIP_THARGON_VERTICES \ x, y, z, face1, face2, face3, face4, visibility VERTEX -9, 0, 40, 1, 0, 5, 5, 31 \ Vertex 0 VERTEX -9, -38, 12, 1, 0, 2, 2, 31 \ Vertex 1 VERTEX -9, -24, -32, 2, 0, 3, 3, 31 \ Vertex 2 VERTEX -9, 24, -32, 3, 0, 4, 4, 31 \ Vertex 3 VERTEX -9, 38, 12, 4, 0, 5, 5, 31 \ Vertex 4 VERTEX 9, 0, -8, 5, 1, 6, 6, 31 \ Vertex 5 VERTEX 9, -10, -15, 2, 1, 6, 6, 31 \ Vertex 6 VERTEX 9, -6, -26, 3, 2, 6, 6, 31 \ Vertex 7 VERTEX 9, 6, -26, 4, 3, 6, 6, 31 \ Vertex 8 VERTEX 9, 10, -15, 5, 4, 6, 6, 31 \ Vertex 9 .SHIP_THARGON_FACES \ normal_x, normal_y, normal_z, visibility FACE -36, 0, 0, 31 \ Face 0 FACE 20, -5, 7, 31 \ Face 1 FACE 46, -42, -14, 31 \ Face 2 FACE 36, 0, -104, 31 \ Face 3 FACE 46, 42, -14, 31 \ Face 4 FACE 20, 5, 7, 31 \ Face 5 FACE 36, 0, 0, 31 \ Face 6