mw-engine/src/cljc/mw_engine/render.clj

98 lines
3.3 KiB
Clojure

(ns mw-engine.render
"Render a world as HTML.
Adapted (simplified) from mw-ui.render-world; this is for visualisation, not
interaction."
;; TODO: but possibly it would be better if there is to be a newer version of
;; mw-ui, to base it on this.
(:require [hiccup2.core :refer [html]])
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;
;;;; This program is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU General Public License
;;;; as published by the Free Software Foundation; either version 2
;;;; of the License, or (at your option) any later version.
;;;;
;;;; This program is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;;; GNU General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU General Public License
;;;; along with this program; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
;;;; USA.
;;;;
;;;; Copyright (C) 2024 Simon Brooke
;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(def ^:dynamic *state-images-relative-path* "img/tiles/")
(defn format-css-class
"Format this statekey, assumed to be a keyword indicating a state in the
world, into a CSS class"
[statekey]
(name statekey))
(defn format-image-path
"Render this statekey, assumed to be a keyword indicating a state in the
world, into a path which should recover the corresponding image file."
[statekey]
(format "%s%s.png" *state-images-relative-path* (format-css-class statekey)))
(defn format-mouseover [cell]
(str cell))
(defn render-cell
"Render this world cell as a Hiccup table cell."
[cell]
(let [state (:state cell)]
[:td {:class (format-css-class state) :title (format-mouseover cell)}
[:img {:alt (:state cell) :src (format-image-path state)}]]))
(defn render-world-row
"Render this world row as a Hiccup table row."
[row]
(apply vector (cons :tr (map render-cell row))))
(defn render-world-table
"Render this `world` as a complete HTML table in a DIV. If
`state-images-relative-path` is passed, use that to override the default path."
([world]
[:div {:class "world"}
(apply vector
(cons :table
(map render-world-row world)))
[:p
(str "Generation " (:generation (first (flatten world))))]])
([world state-images-relative-path]
(binding [*state-images-relative-path* state-images-relative-path]
(render-world-table world))))
(defn render-world-page
([world]
[:html
[:head
[:title "Rendered world"]
[:style "div.world table, div.world table tr td {
padding: 0;
margin: 0;
border-collapse: collapse;
border: none;}"]]
[:body
(render-world-table world)]])
([world state-images-relative-path]
(binding [*state-images-relative-path* state-images-relative-path]
(render-world-page world))))
(defn world->html-file
([world output-path]
(spit output-path (str (html (render-world-page world)))))
([world output-path state-images-relative-path]
(binding [*state-images-relative-path* state-images-relative-path]
(world->html-file world output-path))))