Add new theme for forest map

src/camera.rs

@@ -1,7 +1,8 @@
 use ::rltk::{Point, Rltk, RGB};
 use ::specs::prelude::*;
 
-use crate::{Hidden, Map, Position, Renderable, TileType};
+use crate::map::tile_glyph;
+use crate::{Hidden, Map, Position, Renderable};
 
 const SHOW_BOUNDARIES: bool = false;
 
@@ -37,7 +38,7 @@ pub fn render_camera(ecs: &World, ctx: &mut Rltk) {
             if tx > 0 && tx < map_width && ty > 0 && ty < map_height {
                 let idx = map.xy_idx(tx, ty);
                 if map.revealed_tiles[idx] {
-                    let (glyph, fg, bg) = get_tile_glyph(idx, &*map);
+                    let (glyph, fg, bg) = tile_glyph(idx, &*map);
                     ctx.set(x, y, fg, bg, glyph);
                 }
             } else if SHOW_BOUNDARIES {
@@ -109,7 +110,7 @@ pub fn render_debug_map(map: &Map, ctx: &mut Rltk) {
             if tx > 0 && tx < map_width && ty > 0 && ty < map_height {
                 let idx = map.xy_idx(tx, ty);
                 if map.revealed_tiles[idx] {
-                    let (glyph, fg, bg) = get_tile_glyph(idx, &*map);
+                    let (glyph, fg, bg) = tile_glyph(idx, &*map);
                     ctx.set(x, y, fg, bg, glyph);
                 }
             } else if SHOW_BOUNDARIES {
@@ -126,83 +127,3 @@ pub fn render_debug_map(map: &Map, ctx: &mut Rltk) {
         y += 1;
     }
 }
-
-fn get_tile_glyph(idx: usize, map: &Map) -> (rltk::FontCharType, RGB, RGB) {
-    let mut bg = RGB::from_f32(0., 0., 0.);
-
-    let (glyph, mut fg) = match map.tiles[idx] {
-        TileType::Floor => (rltk::to_cp437('.'), RGB::from_f32(0., 0.5, 0.5)),
-        TileType::WoodFloor => (rltk::to_cp437('.'), RGB::named(rltk::CHOCOLATE)),
-        TileType::Wall => {
-            let x = idx as i32 % map.width;
-            let y = idx as i32 / map.width;
-            (wall_glyph(&*map, x, y), RGB::from_f32(0., 1.0, 0.))
-        }
-        TileType::DownStairs => (rltk::to_cp437('>'), RGB::from_f32(0., 1.0, 1.0)),
-        TileType::Bridge => (rltk::to_cp437('.'), RGB::named(rltk::CHOCOLATE)),
-        TileType::Road => (rltk::to_cp437('~'), RGB::named(rltk::GRAY)),
-        TileType::Grass => (rltk::to_cp437('"'), RGB::named(rltk::GREEN)),
-        TileType::ShallowWater => (rltk::to_cp437('≈'), RGB::named(rltk::CYAN)),
-        TileType::DeepWater => (rltk::to_cp437('≈'), RGB::named(rltk::NAVY_BLUE)),
-        TileType::Gravel => (rltk::to_cp437(';'), RGB::named(rltk::GRAY)),
-    };
-
-    if map.bloodstains.contains(&idx) {
-        bg = RGB::from_f32(0.75, 0., 0.);
-    }
-
-    if !map.visible_tiles[idx] {
-        fg = fg.to_greyscale();
-
-        // Don't show bloodstains out of visual range
-        bg = RGB::from_f32(0., 0., 0.);
-    }
-
-    (glyph, fg, bg)
-}
-
-fn wall_glyph(map: &Map, x: i32, y: i32) -> rltk::FontCharType {
-    if x < 1 || x > map.width - 2 || y < 1 || y > map.height - 2 {
-        return 35;
-    }
-
-    let mut mask = 0u8;
-
-    if is_revealed_and_wall(map, x, y - 1) {
-        mask += 1;
-    }
-    if is_revealed_and_wall(map, x, y + 1) {
-        mask += 2;
-    }
-    if is_revealed_and_wall(map, x - 1, y) {
-        mask += 4;
-    }
-    if is_revealed_and_wall(map, x + 1, y) {
-        mask += 8;
-    }
-
-    match mask {
-        0 => 9,    // Pillar because we can't see neighbors
-        1 => 186,  // Wall only to the north
-        2 => 186,  // Wall only to the south
-        3 => 186,  // Wall to the north and south
-        4 => 205,  // Wall only to the west
-        5 => 188,  // Wall to the north and west
-        6 => 187,  // Wall to the south and west
-        7 => 185,  // Wall to the north, south, and west
-        8 => 205,  // Wall only to the east
-        9 => 200,  // Wall to the north and east
-        10 => 201, // Wall to the sound and east
-        11 => 204, // Wall to the north, south, and east
-        12 => 205, // Wall to the east and west
-        13 => 202, // Wall to the east, west, and south
-        14 => 203, // Wall to the east, west, and north
-        15 => 206, // ╬ Wall on all sides
-        _ => 35,   // We missed one?
-    }
-}
-
-fn is_revealed_and_wall(map: &Map, x: i32, y: i32) -> bool {
-    let idx = map.xy_idx(x, y);
-    map.tiles[idx] == TileType::Wall && map.revealed_tiles[idx]
-}

src/map.rs

@@ -1,3 +1,4 @@
+mod themes;
 mod tiletype;
 
 use std::collections::HashSet;
@@ -5,6 +6,7 @@ use std::collections::HashSet;
 use ::rltk::{Algorithm2D, BaseMap, Point, SmallVec};
 use ::serde::{Deserialize, Serialize};
 use ::specs::prelude::*;
+pub use themes::*;
 pub use tiletype::{tile_opaque, tile_walkable, TileType};
 
 use crate::map::tiletype::tile_cost;

src/map/themes.rs

@@ -0,0 +1,121 @@
+use ::rltk::{FontCharType, RGB};
+
+use super::{Map, TileType};
+
+pub fn tile_glyph(idx: usize, map: &Map) -> (FontCharType, RGB, RGB) {
+    let (glyph, mut fg, mut bg) = match map.depth {
+        2 => get_forest_glyph(idx, map),
+        _ => get_tile_glyph_default(idx, map),
+    };
+
+    if map.bloodstains.contains(&idx) {
+        bg = RGB::from_f32(0.7, 0., 0.);
+    }
+
+    if !map.visible_tiles[idx] {
+        fg = fg.to_greyscale();
+        bg = RGB::from_f32(0., 0., 0.);
+    }
+
+    (glyph, fg, bg)
+}
+
+fn get_forest_glyph(idx: usize, map: &Map) -> (FontCharType, RGB, RGB) {
+    use rltk::to_cp437;
+
+    let bg = RGB::from_f32(0., 0., 0.);
+
+    let (glyph, fg) = match map.tiles[idx] {
+        TileType::Wall => (to_cp437('♣'), RGB::from_f32(0.0, 0.6, 0.0)),
+        TileType::Bridge => (to_cp437('.'), RGB::named(rltk::CHOCOLATE)),
+        TileType::Road => (to_cp437('≡'), RGB::named(rltk::YELLOW)),
+        TileType::Grass => (to_cp437('"'), RGB::named(rltk::GREEN)),
+        TileType::ShallowWater => (to_cp437('~'), RGB::named(rltk::CYAN)),
+        TileType::DeepWater => (to_cp437('~'), RGB::named(rltk::BLUE)),
+        TileType::Gravel => (to_cp437(';'), RGB::from_f32(0.5, 0.5, 0.5)),
+        TileType::DownStairs => (to_cp437('>'), RGB::from_f32(0., 1.0, 1.0)),
+        _ => (to_cp437('"'), RGB::from_f32(0.0, 0.6, 0.0)),
+    };
+
+    (glyph, fg, bg)
+}
+
+fn get_tile_glyph_default(idx: usize, map: &Map) -> (rltk::FontCharType, RGB, RGB) {
+    let mut bg = RGB::from_f32(0., 0., 0.);
+
+    let (glyph, mut fg) = match map.tiles[idx] {
+        TileType::Floor => (rltk::to_cp437('.'), RGB::from_f32(0., 0.5, 0.5)),
+        TileType::WoodFloor => (rltk::to_cp437('░'), RGB::named(rltk::CHOCOLATE)),
+        TileType::Wall => {
+            let x = idx as i32 % map.width;
+            let y = idx as i32 / map.width;
+            (wall_glyph(&*map, x, y), RGB::from_f32(0., 1.0, 0.))
+        }
+        TileType::DownStairs => (rltk::to_cp437('>'), RGB::from_f32(0., 1.0, 1.0)),
+        TileType::Bridge => (rltk::to_cp437('.'), RGB::named(rltk::CHOCOLATE)),
+        TileType::Road => (rltk::to_cp437('≡'), RGB::named(rltk::GRAY)),
+        TileType::Grass => (rltk::to_cp437('"'), RGB::named(rltk::GREEN)),
+        TileType::ShallowWater => (rltk::to_cp437('~'), RGB::named(rltk::CYAN)),
+        TileType::DeepWater => (rltk::to_cp437('~'), RGB::named(rltk::NAVY_BLUE)),
+        TileType::Gravel => (rltk::to_cp437(';'), RGB::named(rltk::GRAY)),
+    };
+
+    if map.bloodstains.contains(&idx) {
+        bg = RGB::from_f32(0.75, 0., 0.);
+    }
+
+    if !map.visible_tiles[idx] {
+        fg = fg.to_greyscale();
+
+        // Don't show bloodstains out of visual range
+        bg = RGB::from_f32(0., 0., 0.);
+    }
+
+    (glyph, fg, bg)
+}
+
+fn wall_glyph(map: &Map, x: i32, y: i32) -> FontCharType {
+    if x < 1 || x > map.width - 2 || y < 1 || y > map.height - 2 {
+        return 35;
+    }
+
+    let mut mask = 0u8;
+
+    if is_revealed_and_wall(map, x, y - 1) {
+        mask += 1;
+    }
+    if is_revealed_and_wall(map, x, y + 1) {
+        mask += 2;
+    }
+    if is_revealed_and_wall(map, x - 1, y) {
+        mask += 4;
+    }
+    if is_revealed_and_wall(map, x + 1, y) {
+        mask += 8;
+    }
+
+    match mask {
+        0 => 9,    // Pillar because we can't see neighbors
+        1 => 186,  // Wall only to the north
+        2 => 186,  // Wall only to the south
+        3 => 186,  // Wall to the north and south
+        4 => 205,  // Wall only to the west
+        5 => 188,  // Wall to the north and west
+        6 => 187,  // Wall to the south and west
+        7 => 185,  // Wall to the north, south, and west
+        8 => 205,  // Wall only to the east
+        9 => 200,  // Wall to the north and east
+        10 => 201, // Wall to the sound and east
+        11 => 204, // Wall to the north, south, and east
+        12 => 205, // Wall to the east and west
+        13 => 202, // Wall to the east, west, and south
+        14 => 203, // Wall to the east, west, and north
+        15 => 206, // ╬ Wall on all sides
+        _ => 35,   // We missed one?
+    }
+}
+
+fn is_revealed_and_wall(map: &Map, x: i32, y: i32) -> bool {
+    let idx = map.xy_idx(x, y);
+    map.tiles[idx] == TileType::Wall && map.revealed_tiles[idx]
+}

src/map_builders.rs

@@ -8,6 +8,7 @@ mod distant_exit;
 mod dla;
 mod door_placement;
 mod drunkard;
+mod forest;
 mod maze;
 mod prefab_builder;
 mod room_based_spawner;
@@ -39,6 +40,7 @@ use distant_exit::DistantExit;
 use dla::DLABuilder;
 use door_placement::DoorPlacement;
 use drunkard::DrunkardsWalkBuilder;
+use forest::forest_builder;
 use maze::MazeBuilder;
 use prefab_builder::PrefabBuilder;
 use room_based_spawner::RoomBasedSpawner;
@@ -342,6 +344,7 @@ pub fn level_builder(
     rltk::console::log(format!("Depth: {}", new_depth));
     match new_depth {
         1 => town_builder(new_depth, rng, width, height),
+        2 => forest_builder(new_depth, rng, width, height),
         _ => random_builder(new_depth, rng, width, height),
     }
 }

src/map_builders/forest.rs

@@ -0,0 +1,26 @@
+use ::rltk::RandomNumberGenerator;
+
+use super::{
+    AreaStartingPosition, BuilderChain, CellularAutomataBuilder, CullUnreachable, DistantExit,
+    VoronoiSpawning, XStart, YStart,
+};
+
+pub fn forest_builder(
+    new_depth: i32,
+    _rng: &mut RandomNumberGenerator,
+    width: i32,
+    height: i32,
+) -> BuilderChain {
+    let mut chain = BuilderChain::new(new_depth, width, height, "Into the Woods");
+
+    chain
+        .start_with(CellularAutomataBuilder::new())
+        .with(AreaStartingPosition::new(XStart::Center, YStart::Center))
+        .with(CullUnreachable::new())
+        .with(AreaStartingPosition::new(XStart::Left, YStart::Center));
+
+    // Setup an exit and spawn mobs
+    chain.with(VoronoiSpawning::new()).with(DistantExit::new());
+
+    chain
+}

src/map_builders/town.rs

@@ -53,8 +53,10 @@ impl TownBuilder {
         let doors = self.add_doors(rng, build_data, &mut buildings, wall_gap_y);
         self.add_paths(build_data, &doors);
 
-        let exit_idx = build_data.map.xy_idx(build_data.width - 5, wall_gap_y);
+        for y in wall_gap_y - 3..wall_gap_y + 4 {
+            let exit_idx = build_data.map.xy_idx(build_data.width - 2, y);
             build_data.map.tiles[exit_idx] = TileType::DownStairs;
+        }
 
         let building_size = self.sort_buildings(&buildings);
         self.building_factory(rng, build_data, &buildings, &building_size);