animation playback (no branches or anything yet)

This commit is contained in:
Lily Tsuru 2024-07-09 23:21:24 -04:00
parent 57b272becf
commit 438489c43f
2 changed files with 57 additions and 4 deletions

View file

@ -1,6 +1,6 @@
import { BufferStream, SeekDir } from './buffer.js';
import { AcsData } from './character.js';
import { AcsAnimationFrameInfo } from './structs/animation.js';
import { AcsAnimation, AcsAnimationFrameInfo } from './structs/animation.js';
import { AcsImageEntry } from './structs/image.js';
// probably should be in a utility module
@ -13,10 +13,47 @@ function dwAlign(off: number): number {
return ul;
}
class AgentAnimationState {
char: Agent;
anim: AcsAnimation;
frameIndex = 0;
interval = 0;
constructor(char: Agent, anim: AcsAnimation) {
this.char = char;
this.anim = anim;
}
// start playing the animation
play() {
this.nextFrame();
}
nextFrame() {
this.char.renderFrame(this.anim.frameInfo[this.frameIndex]);
this.frameIndex++;
if(this.frameIndex >= this.anim.frameInfo.length) {
console.log("animation finished!");
this.char.animationFinished();
return;
}
this.interval = setTimeout(() => {
this.nextFrame();
}, this.anim.frameInfo[this.frameIndex].frameDuration * 10)
}
}
export class Agent {
private data: AcsData;
private cnv: HTMLCanvasElement;
private ctx: CanvasRenderingContext2D;
private animState: AgentAnimationState | null = null;
constructor(data: AcsData) {
this.data = data;
this.cnv = document.createElement('canvas');
@ -25,10 +62,9 @@ export class Agent {
this.cnv.height = data.characterInfo.charHeight;
this.cnv.style.position = 'fixed';
this.hide();
this.renderFrame(this.data.animInfo[0].animationData.frameInfo[0]);
}
private renderFrame(frame: AcsAnimationFrameInfo) {
renderFrame(frame: AcsAnimationFrameInfo) {
this.ctx.clearRect(0, 0, this.cnv.width, this.cnv.height);
for (const mimg of frame.images) {
this.drawImage(this.data.images[mimg.imageIndex], mimg.xOffset, mimg.yOffset);
@ -73,6 +109,21 @@ export class Agent {
parent.appendChild(this.cnv);
}
playAnimation(index: number) {
if(this.animState != null)
throw new Error('Cannot play multiple animations at once.');
let animInfo = this.data.animInfo[index];
console.log("playing animation", animInfo.name);
this.animState = new AgentAnimationState(this, animInfo.animationData);
this.animState.play();
}
animationFinished() {
this.animState = null;
}
show() {
this.cnv.style.display = 'block';
// TODO: play the show animation

View file

@ -13,6 +13,8 @@ input.addEventListener("change", async () => {
agent.addToDom(document.body);
agent.show();
agent.playAnimation(0);
console.log("parsed character");
})