OK, fine, draw the map

src/colors.ts

@@ -1,5 +1,6 @@
 import {Color} from "./engine/datatypes.ts";
 
-export const BG_OUTER = Color.parseHexCode("#200500");
+export const BG_OUTER = Color.parseHexCode("#143464");
+export const BG_INSET = Color.parseHexCode("#242234");
 export const FG_TEXT = Color.parseHexCode("#c0c0c0")
 export const FG_BOLD = Color.parseHexCode("#ffffff")

src/drawpile.ts

@@ -0,0 +1,21 @@
+export class DrawPile {
+  readonly #draws: {depth: number, op: () => void}[]
+
+  constructor() {
+    this.#draws = []
+  }
+
+  add(depth: number, op: () => void) {
+    this.#draws.push({depth, op});
+  }
+
+  execute() {
+    let draws = [...this.#draws];
+    draws.sort(
+      (d0, d1) => d0.depth - d1.depth
+    );
+    for (let d of draws.values()) {
+      d.op();
+    }
+  }
+}

src/engine/datatypes.ts

@@ -66,6 +66,10 @@ export class Point {
   negate() {
     return new Point(-this.x, -this.y);
   }
+
+  equals(other: Point): boolean {
+    return this.x == other.x && this.y == other.y;
+  }
 }
 
 export class Size {
@@ -79,17 +83,19 @@ export class Size {
 }
 
 export class Grid<T> {
-  data: T[][];
+  readonly size: Size;
+  #data: T[][];
 
-  constructor({size, cbDefault}: {size: Size, cbDefault: (xy: Point) => T}) {
-    this.data = [];
+  constructor(size: Size, cbDefault: (xy: Point) => T) {
+    this.size = size;
+    this.#data = [];
 
     for (let y = 0; y < size.h; y++) {
       let row = [];
       for (let x = 0; x < size.w; x++) {
         row.push(cbDefault(new Point(x, y)))
       }
-      this.data.push(row);
+      this.#data.push(row);
     }
   }
 
@@ -105,12 +111,12 @@ export class Grid<T> {
       w = w1;
     }
 
-    return new Grid({
-      size: new Size(w, h),
-      cbDefault: (xy) => {
+    return new Grid(
+      new Size(w, h),
+      (xy) => {
         return ary[xy.y].charAt(xy.x);
       }
-    })
+    )
   }
 
   static createGridFromJaggedArray<T>(ary: Array<Array<T>>): Grid<T> {
@@ -125,12 +131,35 @@ export class Grid<T> {
       w = w1;
     }
 
-    return new Grid({
-      size: new Size(w, h),
-      cbDefault: (xy) => {
+    return new Grid(
+      new Size(w, h),
+      (xy) => {
         return ary[xy.y][xy.x];
       }
-    })
+    )
+  }
+
+  map<T2>(cbCell: (content: T, position: Point) => T2) {
+    return new Grid(this.size, (xy) => cbCell(this.get(xy), xy));
+  }
+
+  #checkPosition(position: Point) {
+    if (
+      (position.x < 0 || position.x >= this.size.w || Math.floor(position.x) != position.x) ||
+      (position.y < 0 || position.y >= this.size.h || Math.floor(position.y) != position.y)
+    ) {
+      throw `invalid position for ${this.size}: ${position}`
+    }
+  }
+
+  get(position: Point): T {
+    this.#checkPosition(position);
+    return this.#data[position.y][position.x];
+  }
+
+  set(position: Point, value: T) {
+    this.#checkPosition(position);
+    this.#data[position.y][position.x] = value;
   }
 }
 

src/engine/internal/sprite.ts

@@ -41,7 +41,6 @@ export class Sprite {
     let srcCy = Math.floor(ix / this.cellsPerSheet.w);
     let srcPx = srcCx * this.pixelsPerSubimage.w;
     let srcPy = srcCy * this.pixelsPerSubimage.h;
-    console.log(`src px and py ${srcPx} ${srcPy}`)
     ctx.drawImage(me, srcPx, srcPy, this.pixelsPerSubimage.w, this.pixelsPerSubimage.h, 0, 0, this.pixelsPerSubimage.w, this.pixelsPerSubimage.h);
   }
 }

src/game.ts

@@ -1,13 +1,15 @@
 import {desiredHeight, desiredWidth, getScreen} from "./engine/internal/screen.ts";
-import {BG_OUTER, FG_TEXT} from "./colors.ts";
+import {BG_INSET, BG_OUTER, FG_TEXT} from "./colors.ts";
 import {checkGrid, ConceptualCell, maps, mapSzX, mapSzY} from "./maps.ts";
 import {D, I} from "./engine/public.ts";
-import {IGame, Point, Size} from "./engine/datatypes.ts";
+import {Grid, IGame, Point, Size} from "./engine/datatypes.ts";
+import {sprRaccoonWalking, sprStatPickup} from "./sprites.ts";
+import {DrawPile} from "./drawpile.ts";
 
 class MenuCamera {
   // measured in whole screens
   position: Point;
-  target: Point
+  target: Point;
 
   constructor({position, target}: {position: Point, target: Point}) {
     this.position = position;
@@ -43,6 +45,7 @@ export class Game implements IGame {
   camera: MenuCamera;
   state: GameState;
   huntMode: HuntMode;
+  frame: number;
 
   constructor() {
     this.camera = new MenuCamera({
@@ -52,9 +55,11 @@ export class Game implements IGame {
     this.state = "Gameplay";
 
     this.huntMode = HuntMode.generate({depth: 1});
+    this.frame = 0;
   }
 
   update() {
+    this.frame += 1;
     if (I.isKeyPressed("w")) {
       this.state = "Gameplay"
     }
@@ -125,8 +130,89 @@ export class Game implements IGame {
   drawGameplay() {
     let region = this.getPaneRegionForGameState("Gameplay")
     // TODO: Draw
+    let oldCamera = D.camera;
+    D.camera = D.camera.offset(region.small.position.negate());
 
-    D.drawText("hello", region.small.position, FG_TEXT);
+    let drawpile = new DrawPile();
+
+    let globalOffset =
+      new Point(this.huntMode.player.x * 32, this.huntMode.player.y * 32).offset(
+        new Point(-192, -128)
+      )
+
+
+    for (let y = 0; y < mapSzY; y += 1) {
+      for (let x = 0; x < mapSzX; x += 1) {
+        let cellOffset = new Point(x * 32, y * 32).offset(globalOffset.negate());
+        let cellData = this.huntMode.cells.get(new Point(x, y))
+
+        this.#drawMapCell(drawpile, cellOffset, new Point(x, y), cellData);
+      }
+    }
+    this.#drawPlayer(drawpile, globalOffset);
+
+    drawpile.execute();
+
+    D.drawText("hello", new Point(0, 0), FG_TEXT);
+
+    D.camera = oldCamera;
+  }
+
+  #drawMapCell(
+    drawpile: DrawPile,
+    cellOffset: Point,
+    mapPosition: Point,
+    cellData: MapCell,
+  ) {
+    const OFFSET_FLOOR = -256;
+    const OFFSET_AIR = 0;
+    const depth = cellOffset.y;
+    const onFloor = OFFSET_FLOOR + depth;
+    const inAir = OFFSET_AIR + depth;
+
+    if (cellData.content.type == "block") {
+      return;
+    }
+    /*
+    if (!cellData.revealed) {
+      return;
+    }
+     */
+
+    // draw inset zone
+    drawpile.add(onFloor, () =>
+      D.fillRect(cellOffset.offset(new Size(-16, -26)), new Size(32, 32), BG_INSET)
+    );
+
+    /*
+    if (!cellData.revealed) {
+      // TODO: draw some kind of question mark
+      D.drawText("?", cellOffset.offset(new Point(12, 8)), FG_TEXT);
+      return
+    }
+     */
+    if (cellData.content.type == "statPickup") {
+      let content = cellData.content;
+      let extraXOffset = 0; // Math.cos(this.frame / 80 + mapPosition.x + mapPosition.y) * 1;
+      let extraYOffset = 0; // Math.sin(this.frame / 50 + mapPosition.x * 2+ mapPosition.y * 0.75) * 6 - 3;
+      drawpile.add(inAir, () => {
+        D.drawSprite(
+          sprStatPickup,
+          cellOffset.offset(new Point(extraXOffset, extraYOffset)),
+          ALL_STATS.indexOf(content.stat)
+        )
+      });
+    }
+  }
+
+  #drawPlayer(drawpile: DrawPile, globalOffset: Point) {
+    let cellOffset = new Point(this.huntMode.player.x * 32, this.huntMode.player.y * 32).offset(globalOffset.negate())
+    drawpile.add(this.huntMode.player.y, () => {
+      D.drawSprite(
+        sprRaccoonWalking,
+        cellOffset
+      )
+    });
   }
 }
 
@@ -135,19 +221,21 @@ const ALL_STATS: Array<Stat> = ["AGI", "INT", "CHA", "PSI"];
 type MapCellContent =
   {type: "statPickup", stat: Stat} |
   {type: "stairs"} |
+  {type: "empty"} |
   {type: "block"}
 
 type MapCell = {
   content: MapCellContent,
+  isValidSpawn: boolean,
   revealed: boolean
 }
 
 class HuntMode {
   depth: number
-  cells: Array<Array<MapCell>>
-  player: Point | null
+  cells: Grid<MapCell>
+  player: Point
 
-  constructor({depth, cells, player}: {depth: number, cells: Array<Array<MapCell>>, player: Point | null}) {
+  constructor({depth, cells, player}: {depth: number, cells: Grid<MapCell>, player: Point }) {
     this.depth = depth;
     this.cells = cells;
     this.player = player;
@@ -160,44 +248,55 @@ class HuntMode {
     let mapName = mapNames[Math.floor(Math.random() * mapNames.length)];
     let map = maps[mapName];
 
-    let rows = [];
-    for (let y = 0; y < mapSzY; y++) {
-      let row = [];
-      for (let x = 0; x < mapSzX; x++) {
-        let src = map[y][x];
-        row.push(HuntMode.#generateCell(src))
+    let cells = map.map((ccell, _xy) => {
+      return this.#generateCell(ccell);
+    })
+
+    let validSpawns = [];
+    for (let x = 0; x < cells.size.w; x++) {
+      for (let y = 0; y < cells.size.h; y++) {
+        let position = new Point(x, y);
+        if (cells.get(position).isValidSpawn)  {
+          validSpawns.push(position);
+        }
       }
-      rows.push(row);
     }
+    let player = choose(validSpawns);
+    cells.get(player).content = {type: "empty"};
 
     if (Math.random() < 0.75) {
       while (true) {
         let x = Math.floor(Math.random() * mapSzX);
         let y = Math.floor(Math.random() * mapSzY);
+        let xy = new Point(x, y);
 
-        let item = rows[y][x];
-        if (item.content.type != "block") {
-          item.content = {type: "stairs"}
-          break;
+        let item = cells.get(new Point(x, y));
+        if (player.equals(xy)) {
+          continue;
         }
+        if (item.content.type == "block") {
+          continue;
+        }
+        item.content = {type: "stairs"}
+        break;
       }
     }
 
-    return new HuntMode({depth, cells: rows, player: null})
+    return new HuntMode({depth, cells, player})
   }
 
   static #generateCell(conceptual: ConceptualCell): MapCell {
     switch (conceptual) {
       case "X":
-        return { content: {type: "block"}, revealed: true};
+        return { content: {type: "block"}, revealed: true, isValidSpawn: false};
       case " ":
-        return { content: HuntMode.#generateContent(true), revealed: true };
+        return { content: HuntMode.#generateContent(), revealed: false, isValidSpawn: false };
       case ".":
-        return { content: HuntMode.#generateContent(false), revealed: true };
+        return { content: HuntMode.#generateContent(), revealed: false, isValidSpawn: true };
     }
   }
 
-  static #generateContent(_revealed: boolean): MapCellContent {
+  static #generateContent(): MapCellContent {
     // stat pickup
     let gsp = (): MapCellContent => {
       return {type: "statPickup", stat: choose(ALL_STATS)}

src/maps.ts

@@ -1,43 +1,30 @@
+import {Grid} from "./engine/datatypes.ts";
+
 export const mapSzX = 12;
 export const mapSzY= 9;
 
-export function checkGrid<T>(cells: Array<Array<T>>): Array<Array<T>> {
-  if (cells.length != mapSzY) {
-    throw `map must be ${mapSzX}x${mapSzY}`
+export function checkGrid<T>(grid: Grid<T>): Grid<T> {
+  if (grid.size.w != mapSzX || grid.size.h != mapSzY) {
+    throw `map must be ${mapSzX}x${mapSzY}, not ${grid.size}`
   }
-
-  for (let row of cells.values()) {
-    if (row.length != mapSzX) {
-      throw `map must be ${mapSzX}x${mapSzY}`;
-    }
-  }
-  return cells;
+  return grid;
 }
 
 export type ConceptualCell = "X" | "." | " ";
 
-function loadMap(map: Array<string>): Array<Array<ConceptualCell>> {
-  let newRows: Array<Array<ConceptualCell>> = [];
-  for (let oldRow of map.values()) {
-    let newRow: Array<ConceptualCell> = []
-    for (let i = 0; i < oldRow.length; i++) {
-      let char = oldRow.charAt(i);
-      let cell: ConceptualCell
-      switch(char) {
-        case "X": cell = "X"; break;
-        case ".": cell = "."; break;
-        case " ": cell = " "; break;
-        default:
-          throw `map element not valid: ${char}`
-      }
-      newRow.push(cell);
-    }
-    newRows.push(newRow);
-  }
-  return checkGrid(newRows);
+function loadMap(map: Array<string>): Grid<ConceptualCell> {
+  let src = Grid.createGridFromStringArray(map);
+  return src.map((char: string): ConceptualCell => {
+    switch(char) {
+      case "X": return "X";
+      case ".": return ".";
+      case " ": return " ";
+      default:
+        throw `map element not valid: ${char}`
+  }});
 }
 
-export let maps: Record<string, Array<Array<ConceptualCell>>> = {
+export let maps: Record<string, Grid<ConceptualCell>> = {
   map0: loadMap([
     "XX        XX",
     "X.        .X",

src/sprites.ts

@@ -1,14 +1,34 @@
 import {Sprite} from "./engine/internal/sprite.ts";
+/*
 import imgBat from "./art/characters/bat.png";
 import imgKobold from "./art/characters/kobold.png";
-import imgRaccoon from "./art/characters/raccoon.png";
-import imgRaccoonWalking from "./art/characters/raccoon_walking.png";
 import imgRobot from "./art/characters/robot.png";
 import imgSnake from "./art/characters/snake.png";
+ */
+import imgRaccoon from "./art/characters/raccoon.png";
+import imgRaccoonWalking from "./art/characters/raccoon_walking.png";
+import imgStatPickup from "./art/pickups/stats.png";
+import {Point, Size} from "./engine/datatypes.ts";
 
+/*
 export let sprBat = new Sprite(imgBat, 64, 64, 32, 32, 1, 1, 1);
 export let sprKobold = new Sprite(imgKobold, 64, 64, 32, 32, 1, 1, 1);
-export let sprRaccoon = new Sprite(imgRaccoon, 64, 64, 32, 32, 1, 1, 1);
-export let sprRaccoonWalking = new Sprite(imgRaccoonWalking, 64, 64, 32, 32, 8, 1, 8);
 export let sprRobot = new Sprite(imgRobot, 64, 64, 32, 32, 1, 1, 1);
 export let sprSnake = new Sprite(imgSnake, 64, 64, 32, 32, 1, 1, 1);
+ */
+
+export let sprRaccoon = new Sprite(
+  imgRaccoon,
+  new Size(64, 64), new Point(32, 32), new Size(1, 1),
+  1
+);
+export let sprRaccoonWalking = new Sprite(
+  imgRaccoonWalking,
+  new Size(64, 64), new Point(32, 32), new Size(8, 1),
+  8
+);
+
+export let sprStatPickup = new Sprite(
+  imgStatPickup, new Size(32, 32), new Point(16, 26),
+  new Size(4, 1), 4
+);