From 912f83701f20ea612bd70282c2760c965c11f520 Mon Sep 17 00:00:00 2001
From: YoanWithY <yoatc@yahoo.de>
Date: Sun, 13 Oct 2024 23:03:53 +0200
Subject: [PATCH] change preset and basic walk mode control

---
 frontend/src/ts/math/mat4.ts             |  4 ++
 frontend/src/ts/project/Config.ts        |  2 +-
 frontend/src/ts/ui/panes/ViewportPane.ts | 77 +++++++++++++++++++++---
 3 files changed, 73 insertions(+), 10 deletions(-)

diff --git a/frontend/src/ts/math/mat4.ts b/frontend/src/ts/math/mat4.ts
index 3a9e330..2f1cdd7 100644
--- a/frontend/src/ts/math/mat4.ts
+++ b/frontend/src/ts/math/mat4.ts
@@ -69,6 +69,10 @@ export default class mat4 {
 		return new mat4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
 	}
 
+	public getColumn(c: number) {
+		return new vec4(this[c], this[c + 4], this[c + 8], this[c + 12]);
+	}
+
 	public transpose(): mat4 {
 		return new mat4(this[0], this[4], this[8], this[12], this[1], this[5], this[9], this[13], this[2], this[6], this[10], this[14], this[3], this[7], this[11], this[15]);
 	}
diff --git a/frontend/src/ts/project/Config.ts b/frontend/src/ts/project/Config.ts
index 925e6bc..13d05ca 100644
--- a/frontend/src/ts/project/Config.ts
+++ b/frontend/src/ts/project/Config.ts
@@ -23,7 +23,7 @@ export abstract class OutputRenderConfig {
 
 export class OutputForwardRenderConfig extends OutputRenderConfig {
 	mode: "forward" = "forward";
-	msaa: MSAAOptions = 1;
+	msaa: MSAAOptions = 4;
 }
 
 export class OutputDeferredRenderConfig extends OutputRenderConfig {
diff --git a/frontend/src/ts/ui/panes/ViewportPane.ts b/frontend/src/ts/ui/panes/ViewportPane.ts
index 94ce290..6399234 100644
--- a/frontend/src/ts/ui/panes/ViewportPane.ts
+++ b/frontend/src/ts/ui/panes/ViewportPane.ts
@@ -1,5 +1,6 @@
 import { gpuDevice } from "../../GPUX";
 import ViewportCamera from "../../Viewport/ViewportCamera";
+import mat3 from "../../math/mat3";
 import vec2 from "../../math/vec2";
 import vec3 from "../../math/vec3";
 import { Project } from "../../project/Project";
@@ -49,7 +50,7 @@ export class ViewportPane extends HTMLElement implements Viewport {
 			lookAt.p = lookAt.p.add(lat.mulS(-dx / 256 * lookAt.r).add(lon.mulS(-dy / 256 * lookAt.r)));
 		}
 
-		const move = (e: MouseEvent) => {
+		const orbitMove = (e: MouseEvent) => {
 			if (e.shiftKey)
 				shiftView(e.movementX, e.movementY)
 			else
@@ -57,26 +58,83 @@ export class ViewportPane extends HTMLElement implements Viewport {
 			this.project.renderer.requestAnimationFrameWith(this);
 		}
 
+		const walkLook = (e: MouseEvent) => {
+			const camPos1 = this.camera.getWorldLocation();
+			const dphi = e.movementX / 256;
+			const dtheta = e.movementY / 256;
+			lookAt.phi -= dphi;
+			lookAt.theta -= dtheta;
+			const camPos2 = this.camera.getWorldLocation();
+			lookAt.p = lookAt.p.add(camPos1.sub(camPos2));
+			this.project.renderer.requestAnimationFrameWith(this);
+		}
+
+		let intID: number | undefined = undefined;
+		let keyMap: any = {};
+		let speed = 0.25;
 		const mm = (e: MouseEvent) => {
-			if (e.buttons === 1 && !document.pointerLockElement) {
-				this.requestPointerLock();
-				this.addEventListener("mousemove", move);
-				move(e);
+			if (document.pointerLockElement)
+				return;
+
+			this.requestPointerLock();
+			if (e.buttons === 4) {
+				this.addEventListener("mousemove", orbitMove);
+				orbitMove(e);
+			} else if (e.buttons === 2) {
+				this.addEventListener("mousemove", walkLook);
+				walkLook(e);
+				const walkMove = () => {
+					const mat = this.camera.transformationStack.getTransformationMatrix();
+					if (keyMap["w"]) {
+						lookAt.p = lookAt.p.sub(mat.getColumn(2).xyz.mulS(speed));
+						this.project.renderer.requestAnimationFrameWith(this);
+					}
+
+					if (keyMap["s"]) {
+						lookAt.p = lookAt.p.sub(mat.getColumn(2).xyz.mulS(-speed));
+						this.project.renderer.requestAnimationFrameWith(this);
+					}
+
+					if (keyMap["a"]) {
+						lookAt.p = lookAt.p.sub(mat.getColumn(0).xyz.mulS(speed));
+						this.project.renderer.requestAnimationFrameWith(this);
+					}
+
+					if (keyMap["d"]) {
+						lookAt.p = lookAt.p.sub(mat.getColumn(0).xyz.mulS(-speed));
+						this.project.renderer.requestAnimationFrameWith(this);
+					}
+				}
+				walkMove();
+				clearInterval(intID);
+				intID = setInterval(walkMove, 8);
 			}
 		}
 
-		this.onmousedown = () => {
+		document.body.addEventListener("keydown", e => keyMap[e.key] = true);
+		document.body.addEventListener("keyup", e => delete keyMap[e.key]);
+
+		this.onmousedown = (e) => {
+			e.preventDefault();
 			this.addEventListener("mousemove", mm);
 		}
 
 		this.onmouseup = () => {
-			this.removeEventListener("mousemove", move);
+			this.removeEventListener("mousemove", walkLook);
+			this.removeEventListener("mousemove", orbitMove);
+			clearInterval(intID);
+			intID = undefined;
 			this.removeEventListener("mousemove", mm);
 			document.exitPointerLock();
 		}
 
 		this.addEventListener("wheel", e => {
 			e.preventDefault();
+			if (intID !== undefined) {
+				speed *= 1.0 - e.deltaY / 300;
+				this.project.renderer.requestAnimationFrameWith(this);
+				return;
+			}
 			const val = e.deltaY / window.devicePixelRatio;
 			lookAt.r += lookAt.r * val / 1024;
 			this.project.renderer.requestAnimationFrameWith(this);
@@ -132,8 +190,7 @@ export class ViewportPane extends HTMLElement implements Viewport {
 		});
 	}
 
-
-	useOverlays: boolean = false;
+	useOverlays: boolean = true;
 
 	private viewBuffer = new Float32Array(3 * 16 + 4);
 	private viewTimeBuffer = new Uint32Array(8);
@@ -174,6 +231,8 @@ export class ViewportPane extends HTMLElement implements Viewport {
 
 	static createViewportPane(project: Project) {
 		const p = document.createElement("viewport-pane") as ViewportPane;
+		p.setAttribute("tabindex", "-1");
+		p.focus();
 		p.project = project;
 		p.appendChild(p.canvas);
 		return p;