witchday/Overworld.js

56 lines
1.3 KiB
JavaScript

class Overworld {
constructor(config) {
this.element = config.element;
this.canvas = this.element.querySelector(".game-canvas");
this.ctx = this.canvas.getContext("2d");
this.map = null;
}
startGameLoop() {
const step = () => {
this.ctx.clearRect(0, 0, this.canvas.width, this.canvas.height);
const cameraPerson = this.map.gameObjects.hero;
// update all objects
Object.values(this.map.gameObjects).forEach(object => {
object.update({
arrow: this.directionInput.direction,
map: this.map,
});
})
this.map.drawLowerImage(this.ctx, cameraPerson);
Object.values(this.map.gameObjects).sort((a,b) => {
return a.y - b.y;
}).forEach(object => {
object.sprite.draw(this.ctx, cameraPerson);
})
this.map.drawUpperImage(this.ctx, cameraPerson);
requestAnimationFrame(() => {
step();
})
}
step();
}
init() {
this.map = new OverworldMap(window.OverworldMaps.DemoRoom);
this.map.mountObjects();
this.directionInput = new DirectionInput();
this.directionInput.init();
this.startGameLoop();
this.map.startCutscene([
{ who: "hero", type: "walk", direction: "down" },
{ who: "hero", type: "walk", direction: "down" },
{ who: "hero", type: "walk", direction: "down" },
{ who: "npc1", type: "walk", direction: "right" },
])
}
}