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Add chapter 74.
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‎book/src/chapter_74.md‎

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@@ -71,7 +71,313 @@ That makes a not-at-all city like map (just a bsp interiors map) - but it's a go
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## Adding some dark elves
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If we just wanted to put dark elves everywhere, it would be as simple as adding one line to `spawns.json` in the `spawn_table` section:
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```json
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{ "name" : "Dark Elf", "weight": 10, "min_depth": 10, "max_depth": 11 }
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```
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That's boring, so let's not do that. Our dark elves are split between *Clan Arbat*, *Clan Barbo*, and *Clan Cirro* (A, B, C, get it?). Thanks to the Abyssal influence of the Amulet of YALA, they are wrought with terrible infighting and war! We'll worry about differentiating the clans in a moment, for now lets make some entries to provide three groups of dark elves who hate one another.
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In the `factions` section of `spawns.json`, create three new factions:
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```json
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{ "name" : "DarkElfA", "responses" : { "Default" : "attack", "DarkElfA" : "ignore", "DarkElfB" : "attack", "DarkElfC" : "attack" } },
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{ "name" : "DarkElfB", "responses" : { "Default" : "attack", "DarkElfB" : "ignore", "DarkElfA" : "attack", "DarkElfC" : "attack" } },
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{ "name" : "DarkElfC", "responses" : { "Default" : "attack", "DarkElfC" : "ignore", "DarkElfA" : "attack", "DarkElfB" : "attack" } }
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```
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Notice how they ignore their own clan, and attack the others. That's the key to making a warzone! Our factions system already supports warring groups - we've just not used it extensively. Now find the `mobs` section, and duplicate the "Dark Elf" three times - once for each faction:
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```json
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{
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"name" : "Arbat Dark Elf",
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"renderable": {
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"glyph" : "e",
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"fg" : "#FF0000",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Hand Crossbow", "Scimitar", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfA",
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"gold" : "3d6",
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"level" : 6
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},
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{
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"name" : "Barbo Dark Elf",
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"renderable": {
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"glyph" : "e",
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"fg" : "#FF0000",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Hand Crossbow", "Scimitar", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfB",
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"gold" : "3d6",
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"level" : 6
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},
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{
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"name" : "Cirro Dark Elf",
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"renderable": {
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"glyph" : "e",
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"fg" : "#FF0000",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Hand Crossbow", "Scimitar", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfC",
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"gold" : "3d6",
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"level" : 6
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},
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```
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In the spawn table, we want them to appear on level 10:
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```json
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{ "name" : "Arbat Dark Elf", "weight": 10, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Barbo Dark Elf", "weight": 10, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Cirro Dark Elf", "weight": 10, "min_depth": 10, "max_depth": 11 }
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```
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If you `cargo run` now, and cheat your way down to depth 10 (I recommend god mode, and teleport) - you find yourself in the midst of a warzone between three clans. There's combat everywhere, and they only pause killing one another long enough to murder the player. There's a lovely amount of mayhem - the gods of Chaos would be proud.
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## Clan Differentiation
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It's kinda boring having all of the clans be identical. The basic "Dark Elf" can stay the same, but lets add a bit of flavor to make the clans *feel* differentiated.
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### Clan Arbat
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We'll start by making Arbat a different color - a lighter red. Replace the "fg" attribute of their Dark Elves with `#FFAAAA` - a pinkish color. We'll take away their crossbows, also. They are a melee-oriented clan. Replace `Scimitar` with `Scimitar +1`. The modified `Arbat Dark Elf` looks like this:
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```json
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{
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"name" : "Arbat Dark Elf",
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"renderable": {
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"glyph" : "e",
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"fg" : "#FFAAAA",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Scimitar +1", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfA",
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"gold" : "3d6",
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"level" : 6
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},
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```
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Let's also give them leaders - tougher fighters:
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```json
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{
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"name" : "Arbat Dark Elf Leader",
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"renderable": {
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"glyph" : "E",
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"fg" : "#FFAAAA",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Scimitar +2", "Buckler +1", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfA",
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"gold" : "3d6",
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"level" : 7
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},
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```
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They also deserve some orc slaves:
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```json
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{
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"name" : "Arbat Orc Slave",
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"renderable": {
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"glyph" : "o",
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"fg" : "#FFAAAA",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "static",
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"attributes" : {},
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"faction" : "DarkElfA",
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"gold" : "1d8"
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},
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```
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Finally, put these into the spawn table:
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```json
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{ "name" : "Arbat Dark Elf", "weight": 10, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Arbat Dark Elf Leader", "weight": 7, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Arbat Orc Slave", "weight": 14, "min_depth": 10, "max_depth": 11 },
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```
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They are probably going to regret their melee focus, but we aren't too concerned for their health!
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### Clan Barbo
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Conversely, we'll make Barbo quite missile oriented - and a little more scarce, because that's super-dangerous. We'll also give them a dagger instead of a scimitar, and change their color to orange:
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```json
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{
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"name" : "Barbo Dark Elf",
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"renderable": {
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"glyph" : "e",
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"fg" : "#FF9900",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Hand Crossbow +1", "Dagger", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfB",
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"gold" : "3d6",
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"level" : 6
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},
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```
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They also get some slaves - this time goblins, with a missile weapon:
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```json
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{
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"name" : "Barbo Goblin Archer",
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"renderable": {
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"glyph" : "g",
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"fg" : "#FF9900",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "static",
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"attributes" : {},
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"faction" : "Cave Goblins",
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"gold" : "1d6",
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"equipped" : [ "Shortbow", "Leather Armor", "Leather Boots" ]
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},
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```
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Finally, update the spawns table to include them:
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```json
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{ "name" : "Barbo Dark Elf", "weight": 9, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Barbo Goblin Archer", "weight": 13, "min_depth": 10, "max_depth": 11 },
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```
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### Clan Cirro
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We're going to make Cirro powerful and rare. The basic Cirro Dark Elf looks like this:
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```json
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{
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"name" : "Cirro Dark Elf",
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"renderable": {
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"glyph" : "e",
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"fg" : "#FF00FF",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Hand Crossbow", "Scimitar", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfC",
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"gold" : "3d6",
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"level" : 7
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},
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```
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We'll also give them leaders - priestesses who can web you:
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```json
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{
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"name" : "Cirro Dark Priestess",
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"renderable": {
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"glyph" : "E",
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"fg" : "#FF00FF",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 8,
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"movement" : "random_waypoint",
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"attributes" : {},
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"equipped" : [ "Hand Crossbow", "Scimitar", "Buckler", "Drow Chain", "Drow Leggings", "Drow Boots" ],
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"faction" : "DarkElfC",
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"gold" : "3d6",
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"level" : 8,
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"abilities" : [
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{ "spell" : "Web", "chance" : 0.2, "range" : 6.0, "min_range" : 3.0 }
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]
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},
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```
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Instead of slaves, we'll give them spiders:
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```json
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{
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"name" : "Cirro Spider",
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"level" : 3,
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"attributes" : {},
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"renderable": {
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"glyph" : "s",
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"fg" : "#FF00FF",
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"bg" : "#000000",
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"order" : 1
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},
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"blocks_tile" : true,
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"vision_range" : 6,
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"movement" : "static",
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"natural" : {
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"armor_class" : 12,
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"attacks" : [
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{ "name" : "bite", "hit_bonus" : 1, "damage" : "1d12" }
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]
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},
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"abilities" : [
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{ "spell" : "Web", "chance" : 0.2, "range" : 6.0, "min_range" : 3.0 }
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],
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"faction" : "DarkElfC"
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},
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```
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This also requires a spawn table update:
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```json
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{ "name" : "Cirro Dark Elf", "weight": 7, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Cirro Dark Priestess", "weight": 6, "min_depth": 10, "max_depth": 11 },
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{ "name" : "Cirro Spider", "weight": 10, "min_depth": 10, "max_depth": 11 }
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```
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If you `cargo run` the project now, you'll find that the dark elves are murdering one another - and there's a good level of variety present.
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## Wrap-Up
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This has been a short chapter: because most of the pre-requisites were already written. That's a good sign for the engine as a whole: we can now build a very different style of level without much in the way of new code. In the next chapter, we'll advance further into the dark elven city - trying to make more of an open city level. The mayhem will continue!
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---
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