skycraft: per-object specular color

- common files to a new 'wmc-common' package in common/
- skycraft now puts all serving files into static/

Dockerfile

@@ -0,0 +1,24 @@
+FROM node:23-alpine as skycraft-deps
+
+WORKDIR /workspace/skycraft
+ADD ./skycraft/package.json ./
+ADD ./skycraft/yarn.lock ./
+RUN yarn install
+
+
+FROM skycraft-deps as skycraft-build
+
+ADD . /workspace
+RUN yarn build
+
+
+FROM skycraft-deps as skycraft-dev
+
+ENTRYPOINT ["yarn"]
+CMD ["run", "serve"]
+
+
+FROM scratch as skycraft-export
+
+COPY --from=skycraft-build /workspace/skycraft/app.js /
+COPY --from=skycraft-build /workspace/skycraft/static/* /

Makefile

@@ -0,0 +1,31 @@
+export DOCKER_BUILDKIT=1
+
+skycraft-dev-image := skycraft-dev
+
+.PHONY: skycraft
+skycraft:		## build skycraft
+	docker build \
+		--output=out/skycraft \
+		--target=skycraft-export \
+		.
+
+.PHONY: skycraft-dev-image
+skycraft-dev-image:
+	docker build \
+		-t $(skycraft-dev-image) \
+		--target=skycraft-dev \
+		.
+
+.PHONY: skycraft-dev
+skycraft-dev: skycraft-dev-image
+	docker run -it --rm \
+		-v .:/workspace \
+		-v /workspace/skycraft/node_modules \
+		-p 8000:8000 \
+		$(skycraft-dev-image)
+
+.PHONY: help
+help:           ## Show this help
+	@echo Noteworthy targets:
+	@egrep '^[a-zA-Z_-]+:.*?## .*$$' $(firstword $(MAKEFILE_LIST)) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-20s\033[0m %s\n", $$1, $$2}'
+.DEFAULT_GOAL := help

common/package.json

@@ -0,0 +1,8 @@
+{
+  "name": "wmc-common",
+  "version": "1.0.0",
+  "license": "MIT",
+  "dependencies": {
+    "esbuild": "^0.14.2"
+  }
+}

skycraft/chunk.ts

@@ -1,6 +1,6 @@
-import { makeFace } from '../geometry';
+import { makeFace } from 'wmc-common/geometry';
 import * as linalg from './linalg';
-import {memoize} from '../memoize';
+import {memoize} from 'wmc-common/memoize';
 
 type direction = ('-x' | '+x' | '-y' | '+y' | '-z' | '+z');
 

skycraft/draw.ts

@@ -1,7 +1,7 @@
-import {makeBufferFromFaces } from '../geometry';
+import {makeBufferFromFaces } from 'wmc-common/geometry';
-import { loadTexture, makeProgram } from '../gl';
+import { loadTexture, makeProgram } from 'wmc-common/gl';
 import * as linalg from './linalg';
-import * as se3 from '../se3';
+import * as se3 from 'wmc-common/se3';
 import { makeOrbitObject } from './orbit';
 
 const VSHADER = `
@@ -15,12 +15,14 @@ uniform mat4 uView;
 uniform vec3 uLightDirection;
 uniform float uAmbiantLight;
 uniform vec3 uGlowColor;
+uniform vec3 uSpecularColor;
 
 varying highp vec2 vTextureCoord;
 varying lowp vec3 vLighting;
 varying lowp vec3 vRay;
 varying lowp vec3 vLightDir;
 varying lowp vec3 vNormal;
+varying lowp vec3 vSpecularColor;
 
 highp mat3 transpose(in highp mat3 inmat) {
     highp vec3 x = inmat[0];
@@ -50,6 +52,7 @@ void main() {
     vRay = -normalize((uModel * vec4(aPosition, 1.0)).xyz - camPos);
     vLightDir = -uLightDirection;
     vNormal = normal;
+    vSpecularColor = uSpecularColor;
 }
 `;
 
@@ -61,6 +64,7 @@ varying lowp vec3 vLighting;
 varying lowp vec3 vRay;
 varying lowp vec3 vLightDir;
 varying lowp vec3 vNormal;
+varying lowp vec3 vSpecularColor;
 
 void main() {
     highp vec4 color = texture2D(uSampler, vTextureCoord);
@@ -69,7 +73,7 @@ void main() {
     }
     lowp vec3 specularDir = 2.0 * dot(vLightDir, vNormal) * vNormal - vLightDir;
     lowp float specularAmount = smoothstep(0.92, 1.0, dot(vRay, specularDir));
-    lowp vec3 specular = 0.8 * specularAmount * vec3(1.0, 1.0, 0.8);
+    lowp vec3 specular = specularAmount * vSpecularColor;
     gl_FragColor = vec4(vLighting * color.rgb + specular, color.a);
 }
 `;
@@ -86,6 +90,7 @@ export async function initWorldGl(gl: WebGLRenderingContext) {
     const lightDirectionLoc = gl.getUniformLocation(program, 'uLightDirection');
     const ambiantLoc = gl.getUniformLocation(program, 'uAmbiantLight');
     const glowColorLoc = gl.getUniformLocation(program, 'uGlowColor');
+    const specularColorLoc = gl.getUniformLocation(program, 'uSpecularColor');
 
     const positionLoc = gl.getAttribLocation(program, 'aPosition');
     const normalLoc = gl.getAttribLocation(program, 'aNormal');
@@ -123,12 +128,14 @@ export async function initWorldGl(gl: WebGLRenderingContext) {
             numVertices,
             lightDirection,
             glowColor,
+            specularColor,
         } = objectParams;
 
         gl.uniformMatrix4fv(modelLoc, false, new Float32Array(se3.product(
             se3.translation(...position), orientation)));
         gl.uniform3fv(lightDirectionLoc, lightDirection);
         gl.uniform3fv(glowColorLoc, glowColor);
+        gl.uniform3fv(specularColorLoc, specularColor);
 
         gl.bindBuffer(gl.ARRAY_BUFFER, glBuffer);
 
@@ -240,7 +247,7 @@ export function getOrbitDrawContext(gl: WebGLRenderingContext) {
 function getObjects(context, body, parentPosition = undefined) {
     const objects = [];
     const {gl, glContext, player} = context;
-    const {position, orientation, glowColor} = body;
+    const {position, orientation, glowColor, specularColor} = body;
 
     if (body.glBuffer === undefined) {
         body.glBuffer = makeBufferFromFaces(gl, body.geometry);
@@ -252,6 +259,7 @@ function getObjects(context, body, parentPosition = undefined) {
         position,
         glContext,
         glowColor,
+        specularColor,
     });
     if (parentPosition !== undefined) {
         const orbitObject = makeOrbitObject(gl, context.orbitGlContext, body.orbit, parentPosition);
@@ -268,6 +276,7 @@ function getObjects(context, body, parentPosition = undefined) {
             orientation: shipOrientation,
             position: shipPos,
             glContext,
+            specularColor: [0.8, 0.8, 0.8],
         });
     }
 
@@ -311,7 +320,7 @@ export function draw(context) {
     ].reduce(se3.product));
     let lastGlContext;
 
-    for (const {position, orientation, geometry, glContext, glowColor} of objects) {
+    for (const {position, orientation, geometry, glContext, glowColor, specularColor} of objects) {
         if (glContext !== lastGlContext) {
             glContext.setupScene({
                 projectionMatrix: projMatrix,
@@ -330,6 +339,7 @@ export function draw(context) {
             numVertices: geometry.numVertices,
             lightDirection,
             glowColor: glowColor || [0, 0, 0],
+            specularColor: specularColor || [0, 0, 0],
         });
     }
 }

skycraft/index.ts

@@ -1,8 +1,8 @@
-import { makeFace } from '../geometry';
+import { makeFace } from 'wmc-common/geometry';
 
 import * as linalg from './linalg';
 import { loadObjModel } from './obj';
-import * as se3 from '../se3';
+import * as se3 from 'wmc-common/se3';
 import { computeOrbit, findSoi, getCartesianState, updateBodyPhysics } from './orbit';
 import { getBodyGeometry } from './chunk';
 import { draw, getOrbitDrawContext, initWorldGl } from './draw';

skycraft/orbit.ts

@@ -1,4 +1,4 @@
-import * as se3 from '../se3';
+import * as se3 from 'wmc-common/se3';
 import * as linalg from './linalg';
 import {Vec3} from './linalg';
 

skycraft/package.json

@@ -4,11 +4,12 @@
   "main": "index.ts",
   "license": "MIT",
   "dependencies": {
-    "esbuild": "^0.14.2"
+    "esbuild": "^0.14.2",
+    "wmc-common": "link:../common"
   },
   "scripts": {
-    "watch": "esbuild --outfile=app.js index.ts --bundle --sourcemap=inline --watch",
+    "watch": "esbuild --outfile=static/app.js index.ts --bundle --sourcemap=inline --watch",
-    "serve": "esbuild --outfile=app.js index.ts --bundle --sourcemap=inline --servedir=.",
+    "serve": "esbuild --outfile=static/app.js index.ts --bundle --sourcemap=inline --servedir=static",
     "build": "esbuild --outfile=app.js index.ts --bundle --minify"
   }
 }

skycraft/quat.ts

@@ -1,5 +1,5 @@
 import {Mat4} from './linalg';
-import * as se3 from '../se3';
+import * as se3 from 'wmc-common/se3';
 
 export interface Quat {
     x: number,

skycraft/texture.png

@@ -1 +0,0 @@
-../texture.png

skycraft/yarn.lock

@@ -44,7 +44,7 @@ esbuild-linux-32@0.14.54:
 
 esbuild-linux-64@0.14.54:
   version "0.14.54"
-  resolved "https://registry.yarnpkg.com/esbuild-linux-64/-/esbuild-linux-64-0.14.54.tgz#de5fdba1c95666cf72369f52b40b03be71226652"
+  resolved "https://registry.npmjs.org/esbuild-linux-64/-/esbuild-linux-64-0.14.54.tgz"
   integrity sha512-EgjAgH5HwTbtNsTqQOXWApBaPVdDn7XcK+/PtJwZLT1UmpLoznPd8c5CxqsH2dQK3j05YsB3L17T8vE7cp4cCg==
 
 esbuild-linux-arm64@0.14.54:
@@ -109,7 +109,7 @@ esbuild-windows-arm64@0.14.54:
 
 esbuild@^0.14.2:
   version "0.14.54"
-  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.14.54.tgz#8b44dcf2b0f1a66fc22459943dccf477535e9aa2"
+  resolved "https://registry.npmjs.org/esbuild/-/esbuild-0.14.54.tgz"
   integrity sha512-Cy9llcy8DvET5uznocPyqL3BFRrFXSVqbgpMJ9Wz8oVjZlh/zUSNbPRbov0VX7VxN2JH1Oa0uNxZ7eLRb62pJA==
   optionalDependencies:
     "@esbuild/linux-loong64" "0.14.54"
@@ -133,3 +133,7 @@ esbuild@^0.14.2:
     esbuild-windows-32 "0.14.54"
     esbuild-windows-64 "0.14.54"
     esbuild-windows-arm64 "0.14.54"
+
+"wmc-common@link:../common":
+  version "0.0.0"
+  uid ""