IsometricWorldGenerator/index.html at master · Auskennfuchs/IsometricWorldGenerator · GitHub

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<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8" />
    <title>Heightmap Generator</title>
    <link rel="stylesheet" href="styles.css" type="text/css" />
    <script src="js/three.js"></script>
    <script src="js/improvednoise.js"></script>
    <script src="js/orbitcontrols.js"></script>
    <script src="js/heightmap.js"></script>
    <script src="js/heightgradient.js"></script>
    <script src="js/watershader.js"></script>
</head>

<body>
    <div id="heightMapContainer" class="heightMapContainer">
        <div id="gradient" class="gradientContainer"></div>
        <canvas id="heightMap" width=512 height=512></canvas>
        <button onclick="recreateHeightMap()">Update</button>
    </div>
    <div id="renderContainer" class="renderContainer"></div>
    <script>
        var lastFrameTimestamp = null;
        var clock = new THREE.Clock();
        var scene = new THREE.Scene();
        var container = document.getElementById('renderContainer');
        var animateSun = false;
        var sunTime = 0;
        var waterLevel = 0;

        var gradient = new HeightGradient();
        document.getElementById('gradient').appendChild(gradient.getGradient());

        //        var camera = new THREE.PerspectiveCamera(75, container.clientWidth / container.clientHeight, 0.1, 1000);
        var camera = new THREE.OrthographicCamera(container.clientWidth / -2, container.clientWidth / 2, container.clientHeight / 2, container.clientHeight / -2, 0.001, 1000);

        var controls = new THREE.OrbitControls(camera);
        var renderer = new THREE.WebGLRenderer({ alpha: true });
        renderer.shadowMap.enabled = true;
        renderer.shadowMap.type = THREE.PCFSoftShadowMap;
        renderer.setSize(container.clientWidth, container.clientHeight);
        container.appendChild(renderer.domElement);

        var heightMap = new HeightMap();
        var heightModel = null;
        var tex = new THREE.CanvasTexture(gradient.getGradient(), THREE.UVMapping);
        tex.wrapS = tex.wrapT = THREE.RepeatWrapping;
        recreateHeightMap();

        var planeGeo = new THREE.PlaneGeometry(1000, 1000, 1, 1);
        var plane = new THREE.Mesh(planeGeo, new THREE.ShadowMaterial({ color: 0x333333 }));
        plane.receiveShadow = true;
        plane.rotation.x = -Math.PI / 2;
        plane.position.set(0, -80, 0);
        scene.add(plane);

        var ambientLight = new THREE.AmbientLight(0x404040); // soft white light
        scene.add(ambientLight);

        var sunLight = new THREE.DirectionalLight(0xffffff, 1);
        sunLight.castShadow = true;
        sunLight.shadow.mapSize.width = 512;  // default
        sunLight.shadow.mapSize.height = 512; // default
        sunLight.shadow.camera.near = 1;       // default
        sunLight.shadow.camera.far = 1000;      // default
        sunLight.shadow.camera.left = -256;      // default
        sunLight.shadow.camera.right = 256;      // default
        sunLight.shadow.camera.top = -256;      // default
        sunLight.shadow.camera.bottom = 256;      // default
        sunLight.shadow.bias = -0.008;
        sunLight.position.set(300, 500, 0);
        sunLight.target.position.set(scene.position);
        scene.add(sunLight);

        var waterPlaneGeo = new THREE.PlaneGeometry(255, 255, 1, 1);
        var waterPlane = new THREE.Mesh(waterPlaneGeo, new THREE.MeshStandardMaterial({ color: 0xa088fc, transparent: true, opacity: 0.5 }));
        waterPlane.rotation.x = -Math.PI / 2;
        waterPlane.position.set(0, waterLevel, 0);
        scene.add(waterPlane);

        /*        var helper = new THREE.CameraHelper(sunLight.shadow.camera);
                scene.add(helper);*/

        camera.position.set(-128, 100, 128);
        camera.lookAt(scene.position);
        camera.zoom = 1.5;
        camera.updateProjectionMatrix();

        var ms_Water = null;

        var sL = sunLight.position.clone();
        sL.negate();
        sL.normalize();

        var animate = function (timestamp) {
            controls.update(clock.getDelta());
            if (!lastFrameTimestamp) {
                lastFrameTimestamp = timestamp - 16;
            }
            var elapsed = clock.getDelta();

            var orbitRadius = 500;
            var time = clock.getElapsedTime() / 4.0;
            if (animateSun) {
                sunLight.position.set(
                    Math.cos(time) * orbitRadius,
                    Math.sin(time) * orbitRadius,
                    0
                );
            }

            if (ms_Water != null) {
                ms_Water.material.uniforms.time.value += elapsed;
                ms_Water.render();
            }
            renderer.render(scene, camera);

            lastFrameTimestamp = timestamp;

            requestAnimationFrame(animate);
        };

        requestAnimationFrame(animate);

        window.addEventListener('keydown', function (e) {
            switch (e.code) {
                case 'KeyS':
                    animateSun = !animateSun;
                    break;
                case 'KeyO':
                    waterPlane.position.y++;
                    break;
                case 'KeyL':
                    waterPlane.position.y--;
                    break;
            }
            /*            switch(e.keyCode) {
                            case 107:
                                sunLight.shadow.bias+=0.0001;
                                console.log(sunLight.shadow.bias);
                            break;
                            case 109:
                                sunLight.shadow.bias-=0.0001;
                                console.log(sunLight.shadow.bias);
                            break;
                        }*/
        });

        function recreateHeightMap() {
            if (heightModel != null) {
                scene.remove(heightModel);
            }
            heightMap.createCanvasTexture(512, 'heightMap');
            heightModel = new THREE.Mesh(heightMap.createMesh(), new THREE.MeshStandardMaterial({ color: 0xffffff, roughness: 0.8, map: tex }));
            heightModel.castShadow = true;
            heightModel.receiveShadow = true;
            scene.add(heightModel);
        }

        function addWaterPlane() {
            new THREE.TextureLoader().load('assets/waternormals.jpg', (waterNormals) => {
                waterNormals.wrapS = waterNormals.wrapT = THREE.RepeatWrapping;
                // Create the water effect
                ms_Water = new THREE.Water(renderer, camera, scene, {
                    textureWidth: 256,
                    textureHeight: 256,
                    waterNormals: tex,
                    alpha: 0.6,
                    sunDirection: sL,
                    sunColor: 0xffffff,
                    waterColor: 0xa088fc,
                    betaVersion: 0,
                    side: THREE.DoubleSide
                });
                var aMeshMirror = new THREE.Mesh(
                    new THREE.PlaneBufferGeometry(255, 255, 10, 10),
                    ms_Water.material
                );
                aMeshMirror.add(ms_Water);
                aMeshMirror.rotation.x = Math.PI * 0.5;

                scene.add(aMeshMirror);
            });
        }
    </script>
</body>

</html>