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ani-test.html
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html" charset="utf-8"/>
<title>tileMap</title>
<script src="https://cdn.babylonjs.com/babylon.worker.js"></script>
<style>
html, body {
overflow: hidden;
width : 100%;
height : 100%;
margin : 0;
padding : 0;
font-size:16px;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
body *{
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
*:before, *:after{
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
#renderCanvas {
width : 100%;
height : 100%;
touch-action: none;
}
</style>
</head>
<body>
<canvas id="renderCanvas"></canvas>
<script>
TM = function(target, args){
this.canvas = document.getElementById(target) || target;
args = args || {};
this.tileScale = args.tileScale || 1.0;
this.tileSize = args.tileSize || 16.0;
this.offset = args.offset || new BABYLON.Vector2.Zero();
this.layers = [];
this.time = 0;
this.init(args);
return this;
};
TM.prototype = {
init : function(args){
this._loadingBuild(args);
this._asycBuffer();
this._startScene();
this._buildShader();
//this._startRender();
},
_loadingBuild : function(){
this._tasks = 1;
this._ready = false;
this._ls = document.createElement('div');
this._ls.setAttribute('style', 'position:absolute;display:block;left:50%;top:50%;transform:translate(-50% , -50%);');
this._ls.innerHTML = 'LOADING!';
document.body.appendChild(this._ls);
},
_asycBuffer : function(){
this._ready = true;
if(!this._atlas){this._ready=false;}
if(this._tasks>0){this._ready=false;}
for(i=0; i<this.layers.length; i++){
var l = this.layers[i];
if(!l._atlasSet || !l._tilesSet){this._ready=false;}
}
if(this._ready){
this._ls.remove();
this._startRender();
this._resize();
//console.log('READY!');
}else{
//console.log('NOT READY!');
var self = this;
setTimeout(function(){self._asycBuffer();}, 1000/30);
}
},
_startScene : function(){
var canvas = this.canvas;
var engine = new BABYLON.Engine(canvas, true);
var scene = new BABYLON.Scene(engine);
scene.clearColor = new BABYLON.Color3(0, 0, 0);
var camera = new BABYLON.FreeCamera("camera1", new BABYLON.Vector3(0, 0, -10), scene);
camera.setTarget(BABYLON.Vector3.Zero());
var light = new BABYLON.HemisphericLight("light1", new BABYLON.Vector3(0, 1, 0), scene);
light.intensity = .5;
this.engine = engine;
this.scene = scene;
},
_buildShader : function(){
var _vs =
`
precision highp float;
// Attributes
attribute vec3 position;
attribute vec3 normal;
attribute vec2 uv;
// Uniforms
uniform mat4 worldViewProjection;
uniform float time;
uniform vec2 viewOffset;
uniform vec2 viewportSize;
uniform vec2 inverseTileTextureSize;
uniform float layerHeight;
uniform float tileSize;
// Varying
varying vec3 vPosition;
varying vec2 vUV;
varying vec2 pixelCoord;
varying vec2 texCoord;
void main() {
vec4 p = vec4( position, 1. );
vPosition = position;
gl_Position = worldViewProjection * p;
vUV = uv;
vUV.y = vUV.y * -1.;
pixelCoord = (vUV * viewportSize) + viewOffset;
pixelCoord.y = pixelCoord.y + (viewportSize.y*0.5) + ((layerHeight*tileSize)/2.0);
texCoord = pixelCoord * inverseTileTextureSize * (1.0/tileSize);
}
`;
var _fs =
`
precision highp float;
uniform float time;
uniform float fps;
uniform sampler2D tiles;
uniform sampler2D animationMap;
uniform sampler2D sprites;
uniform vec2 viewportSize;
uniform float tileSize;
uniform vec2 inverseSpriteTextureSize;
uniform vec2 inverseTileTextureSize;
uniform vec3 globalLight;
varying vec3 vPosition;
varying vec2 vUV;
varying vec2 pixelCoord;
varying vec2 texCoord;
void main()
{
vec4 tile = texture2D(tiles, texCoord);
if(tile.x == 1.0 && tile.y == 1.0 || tile.a == 0.0) { discard; }
vec4 aTile = texture2D(animationMap, tile.xy);
if(aTile.a != 0.0){
int _t = int(mod(time*2.0, 4.));
if(_t==1){tile.x = tile.x+tile.x;}
}
vec2 spriteOffset = (floor((tile.xy) * 256.0) * tileSize);
vec2 spriteCoord = mod(pixelCoord, tileSize);
vec4 tSample = texture2D(sprites, (spriteOffset + spriteCoord) * inverseSpriteTextureSize);
vec3 color = tSample.xyz;
float alpha = tSample.a;
color = color * globalLight;
gl_FragColor = vec4(color, alpha);
}
`;
BABYLON.Effect.ShadersStore["basicVertexShader"] = _vs;
BABYLON.Effect.ShadersStore["basicFragmentShader"] = _fs;
this._tasks--;
var self = this;
this.scene.registerBeforeRender(()=>{
self._update();
});
},
_startRender : function(){
var self = this;
self.engine.runRenderLoop(function () {
self.scene.render();
self.time+=0.01;
});
window.addEventListener("resize", function () {
self.engine.resize();
self._resize();
});
},
setAtlas : function(url){
var self = this;
this._tasks++;
this._atlas = new BABYLON.Texture(url, this.scene, true, false, 1, ()=>{
self.inverseSpriteTextureSize = new BABYLON.Vector2(1/self._atlas._texture._width, 1/self._atlas._texture._height);
console.log("inverseSpriteTextureSize", self.inverseSpriteTextureSize);
self._tasks--;
});
},
setAnimations : function(url){
var self = this;
this._tasks++;
this._atlasAnimationSheet = new BABYLON.Texture(url, this.scene, true, false, 1, ()=>{
self._tasks--;
});
},
addLayer : function(url, args){
this._tasks++;
var layer = new TM.LAYER(url, args || {}, this);
this.layers.push(layer);
return layer;
},
_resize : function(){
console.log('RESIZE!');
for(var i=0; i<this.layers.length; i++){
var l = this.layers[i];
l.viewportSize = new BABYLON.Vector2(this.canvas.width, this.canvas.height);
l.viewportScaled = new BABYLON.Vector2(this.canvas.width/(this.tileScale+l.scale), this.canvas.height/(this.tileScale+l.scale));
l._build();
}
},
_update : function(){
for(var i=0; i<this.layers.length; i++){
var l = this.layers[i];
l.shader.setVector2('viewOffset', this.offset.multiply(l.scrollSpeed));
l.shader.setFloat('time' ,this.time);
}
}
};
TM.LAYER = function(url, args, parent){
this.parent = parent;
this.repeat = args.repeat || false;
this.scale = args.scale || 0;
this.scrollSpeed = args.scrollSpeed || new BABYLON.Vector2(1.0,1.0);
this.viewportSize = new BABYLON.Vector2(this.parent.canvas.width, this.parent.canvas.height);
this.viewportScaled = new BABYLON.Vector2(this.parent.canvas.width/(this.parent.tileScale+this.scale), this.parent.canvas.height/(this.parent.tileScale+this.scale));
this._atlasSet = false;
this._animationsSet = false;
this._tilesSet = false;
var self = this;
this._tiles = new BABYLON.Texture(url, this.scene, true, true, 1, ()=>{
self.inverseTextureSize = new BABYLON.Vector2(1/self._tiles._texture._width, 1/self._tiles._texture._height);
console.log("inverseTextureSize", self.inverseTextureSize);
self._setShader();
self.parent._tasks--;
});
if(!this.repeat){
this._tiles.wrapU = BABYLON.Texture.CLAMP_ADDRESSMODE;
this._tiles.wrapV = BABYLON.Texture.CLAMP_ADDRESSMODE;
}
};
TM.LAYER.prototype = {
_build : function(){
this._setShader();
this._createPlane();
},
_createPlane : function(){
if(this.plane)this.plane.dispose();
var scene = this.parent.scene;
var engine = this.parent.engine;
var c = scene.activeCamera;
var fov = c.fov;
var aspectRatio = engine.getAspectRatio(c);
var d = c.position.length();
var y = 2 * d * Math.tan(fov / 2);
var x = y * aspectRatio;
this.plane = BABYLON.MeshBuilder.CreatePlane("plane", {width: x, height:y}, scene);
this.plane.material = this.shader;
},
_setShader : function(){
if(!this.shader){
this.shader = new BABYLON.ShaderMaterial("basicShader", this.parent.scene, {
vertex: "basic",
fragment: "basic",
},{
attributes: ["position", "normal", "uv"],
uniforms: ["world",
"worldView",
"worldViewProjection",
"view", "viewOffset",
"viewportSize",
"inverseTileTextureSize",
"inverseSpriteTextureSize","layerHeight",
"tileSize", "time", "projection",
"globalLight", "fps"]
});
}
if(!this._atlasSet){
this.shader.setTexture("sprites", this.parent._atlas);
this._atlasSet = true;
}
if(!this._animationsSet){
this.shader.setTexture('animationMap', this.parent._atlasAnimationSheet);
this._animationsSet = true;
}
if(!this._tilesSet){
this.shader.setTexture("tiles", this._tiles);
this._tilesSet = true;
}
this.shader.setVector2('viewportSize', this.viewportScaled);
this.shader.setVector2('inverseTileTextureSize', this.inverseTextureSize);
this.shader.setVector2('inverseSpriteTextureSize', this.parent.inverseSpriteTextureSize);
this.shader.setVector3('globalLight', new BABYLON.Vector3(1.0, 1.0, 1.0));
this.shader.setFloat('tileSize', this.parent.tileSize);
this.shader.setFloat('layerHeight', this._tiles._texture._baseHeight);
this.shader.setFloat('fps', 60);
},
};
document.addEventListener("DOMContentLoaded", () => {
tm = new TM('renderCanvas', {tileScale:1, tileSize:32});
tm.setAtlas('./imgs/test.png');
tm.setAnimations('./imgs/ani-map-test.png');
//tm.addLayer('layer0.png', {repeat:true, scale:-0.5, scrollSpeed:new BABYLON.Vector2(0.8, 0.8)});
var l1 = tm.addLayer('./imgs/layer1.png', {repeat:false});
},false);
</script>
</body>
</html>