125 lines
3.5 KiB
Haxe
125 lines
3.5 KiB
Haxe
package iron.data;
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#if lnx_stream
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import haxe.ds.Vector;
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import iron.data.SceneFormat;
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import iron.data.MaterialData;
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import iron.object.Object;
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import iron.object.MeshObject;
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import iron.object.CameraObject;
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import iron.math.Vec4;
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class SceneStream {
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var checkMax = 64; // Objects checked per frame
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var checkPos = 0;
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var loadMax = 8; // Max objects loaded at once
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var loading = 0; // Objects being loaded
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var loadDistance = -1;
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var unloadDistance = -1;
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var sectors: Array<StreamSector>; // 100x100 groups
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public function sceneTotal(): Int {
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return sectors[0].handles.length;
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}
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public function new() {
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sectors = [new StreamSector()];
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}
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public function remove() {}
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public function add(object_file: String, data_ref: String, sceneName: String, armature: Armature, materials: Vector<MaterialData>, parent: Object, parentObject:TObj, obj: TObj) {
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sectors[0].handles.push({ object_file: object_file, data_ref: data_ref, sceneName: sceneName, armature: armature, materials: materials, parent: parent, parentObject: parentObject, obj: obj, object: null, loading: false });
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}
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function setup(camera: CameraObject) {
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loadDistance = Std.int(camera.data.raw.far_plane * 1.1);
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unloadDistance = Std.int(camera.data.raw.far_plane * 1.5);
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}
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public function update(camera: CameraObject) {
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if (loadDistance == -1) setup(camera);
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if (loading >= loadMax) return; // Busy loading..
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var sec = sectors[0];
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var to = Std.int(Math.min(checkMax, sec.handles.length));
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for (i in 0...to) {
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var h = sec.handles[checkPos];
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checkPos++;
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if (checkPos >= sec.handles.length) checkPos = 0;
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// Check radius in sector
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var camX = camera.transform.worldx();
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var camY = camera.transform.worldy();
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var camZ = camera.transform.worldz();
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var hx = h.obj.transform.values[3];
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var hy = h.obj.transform.values[7];
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var hz = h.obj.transform.values[11];
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var cameraDistance = Vec4.distancef(camX, camY, camZ, hx, hy, hz);
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var dim = h.obj.dimensions;
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if (dim != null) {
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var r = dim[0];
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if (dim[1] > r) r = dim[1];
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if (dim[2] > r) r = dim[2];
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cameraDistance -= r;
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// TODO: handle scale & rot
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}
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if (cameraDistance < loadDistance && h.object == null && !h.loading) { // Load mesh
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// Wait for the parent object to be added to scene
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if (h.parent == null) {
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if (Scene.active.getChild(h.parentObject.name) == null) return;
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h.parent = Scene.active.getChild(h.parentObject.name);
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}
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// Start loading
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h.loading = true;
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loading++;
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iron.Scene.active.returnMeshObject(h.object_file, h.data_ref, h.sceneName, h.armature, h.materials, h.parent, h.parentObject, h.obj, function(object: Object) {
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h.object = cast(object, MeshObject);
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h.loading = false;
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loading--;
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});
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if (loading >= loadMax) return;
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}
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else if (cameraDistance > unloadDistance && h.object != null) { // Unload mesh
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// Remove objects
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h.object.remove();
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if (h.object.data.refcount <= 0) {
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iron.data.Data.deleteMesh(h.object_file + h.data_ref);
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}
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h.object = null;
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// Clear parents
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if (h.parent.name != Scene.active.raw.name) {
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h.parent = null;
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}
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}
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}
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}
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}
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typedef TMeshHandle = {
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var object_file: String;
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var data_ref: String;
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var sceneName: String;
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var armature: Armature;
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var materials: Vector<MaterialData>;
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var parent: Object;
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var parentObject: TObj;
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var obj: TObj;
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var object: MeshObject;
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var loading: Bool;
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}
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class StreamSector {
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public function new() {}
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public var handles: Array<TMeshHandle> = []; // Mesh objects
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}
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#end
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