Architecture implemented.

js/retro/RetroArchitecture.js

@@ -0,0 +1,126 @@
+import RetroSprite from "./RetroSprite.js";
+import GeometryRect from "../geometry/GeometryRect.js";
+import RetroArchitectureTile from "./RetroArchitectureTile.js";
+
+export default class RetroArchitecture
+{
+    constructor(tilesetSprite, tiles, columns, rows)
+    {
+        this.tileset = tilesetSprite;
+        this.tiles = tiles;
+        this.rows = rows;
+        this.columns = columns;
+        this.matrix = [];
+        this.tileWidth = this.tileset.getWidth() / this.tiles;
+        this.tileHeight = this.tileset.getHeight();
+
+        this.init();
+    }
+
+    init()
+    {
+        for (let y = 0; y < this.rows; y++) {
+            this.matrix.push(Array(this.columns).fill(null));
+        }
+    }
+
+    hasRectCollision(rect)
+    {
+        let posX = Math.floor(rect.position.x / this.tileWidth) - 2;
+        let posY = Math.floor(rect.position.y / this.tileHeight) - 2;
+        let rangeX = parseInt( posX + rect.width / this.tileWidth) + 4;
+        let rangeY = parseInt(posY + rect.height / this.tileHeight) + 4;
+
+        for (let y = Math.max(0, posY); y < rangeY; y++) {
+            for (let x = Math.max(0, posX); x < rangeX; x++) {
+                if (this.matrix[y][x] !== null) {
+                    if (this.matrix[y][x].rect.getRectIntersection(rect) !== null) {
+                        return true;
+                    }
+                }
+            }
+        }
+
+        return false;
+    }
+
+    getTileForPosition(position)
+    {
+        let x = parseInt(position.x / this.tileWidth);
+        let y = parseInt(position.y / this.tileHeight);
+
+        if (x < 0 || x >= this.columns || y < 0 || y >= this.rows) {
+            return null;
+        }
+
+        return {x: x, y: y};
+    }
+
+    getGroundHeight(position)
+    {
+        let tilePosition = this.getTileForPosition(position);
+
+        while (tilePosition !== null && tilePosition.y < this.rows) {
+            if (this.matrix[tilePosition.y][tilePosition.x] !== null) {
+                return tilePosition.y * this.tileHeight
+            }
+
+            tilePosition.y++;
+        }
+
+        return this.tileHeight * this.rows;
+    }
+
+    draw(context)
+    {
+        for (let y = 0; y < this.rows; y++) {
+            for (let x = 0; x < this.columns; x++) {
+                let field = this.matrix[y][x];
+
+                if (field !== null) {
+                    context.drawImage(
+                        this.tileset.canvas,
+                        field.tile * this.tileWidth,
+                        0,
+                        this.tileWidth,
+                        this.tileHeight,
+                        x * this.tileWidth,
+                        y * this.tileHeight,
+                        this.tileWidth,
+                        this.tileHeight
+                    );
+                }
+            }
+        }
+    }
+
+    static createFromJson(json)
+    {
+        let data = JSON.parse(json);
+
+        let tileset = new RetroSprite(data.tileset, data.scale);
+
+        let architecture = new RetroArchitecture(
+            tileset,
+            data.tiles,
+            data.columns,
+            data.rows
+        );
+
+        for (let y = 0; y < data.rows; y++) {
+            for (let x = 0; x < data.columns; x++) {
+                if (data.matrix[y][x] !== null) {
+                    architecture.matrix[y][x] = new RetroArchitectureTile(
+                        data.matrix[y][x],
+                        x * architecture.tileWidth,
+                        y * architecture.tileHeight,
+                        architecture.tileWidth,
+                        architecture.tileHeight
+                    )
+                }
+            }
+        }
+
+        return architecture;
+    }
+}