Added asset manager.

ts/asset/AssetManager.ts

@@ -0,0 +1,39 @@
+export interface IAssetOwner {
+
+}
+
+export class AssetManager {
+  private owners:{ [key:string]:IAssetOwner[] };
+  private textures:{ [key:string]:Texture };
+  private shaders:{ [key:string]:Shader };
+
+  constructor() {
+    this.owners = {};
+    this.textures = {};
+    this.shaders = {};
+  }
+
+  private addOwner(name:string, owner:IAssetOwner) {
+    this.owners[name] = this.owners[name] || [];
+    this.owners[name].push(owner);
+  }
+
+  public textureLoad(name:string, owner:IAssetOwner):Texture {
+    this.addOwner(name, owner);
+    if(this.textures[name]) return this.textures[name];
+    this.textures[name] = textureCreate();
+    assetTextureLoad(this.textures[name], name);
+    return this.textures[name];
+  }
+
+  public shaderLoad(vert:string, frag:string, owner:IAssetOwner):Shader {
+    this.addOwner(vert, owner);
+    if(this.shaders[vert]) return this.shaders[vert];
+    this.shaders[vert] = shaderCreate();
+    assetShaderLoad(this.shaders[vert], vert, frag);
+    return this.shaders[vert];
+  }
+
+  public releaseOwner(owner:IAssetOwner) {
+  }
+}