118 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Haxe
		
	
	
	
	
	
			
		
		
	
	
			118 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Haxe
		
	
	
	
	
	
| package iron.object;
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| 
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| import iron.Scene;
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| import iron.data.Data;
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| import iron.data.SceneFormat;
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| import iron.system.Time;
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| 
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| @:allow(iron.Scene)
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| class Tilesheet {
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| 
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| 	public var tileX = 0.0; // Tile offset on tilesheet texture 0-1
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| 	public var tileY = 0.0;
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| 
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| 	public var raw: TTilesheetData;
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| 	public var action: TTilesheetAction = null;
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| 	var ready: Bool;
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| 
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| 	public var paused = false;
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| 	public var frame = 0;
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| 	var time = 0.0;
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| 	var onActionComplete: Void->Void = null;
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| 
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| 	public function new(sceneName: String, tilesheet_ref: String, tilesheet_action_ref: String) {
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| 		ready = false;
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| 		Data.getSceneRaw(sceneName, function(format: TSceneFormat) {
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| 			for (ts in format.tilesheet_datas) {
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| 				if (ts.name == tilesheet_ref) {
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| 					raw = ts;
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| 					Scene.active.tilesheets.push(this);
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| 					play(tilesheet_action_ref);
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| 					ready = true;
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| 					break;
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| 				}
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| 			}
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| 		});
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| 	}
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| 
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| 	public function play(action_ref: String, onActionComplete: Void->Void = null) {
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| 		this.onActionComplete = onActionComplete;
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| 		for (a in raw.actions) {
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| 			if (a.name == action_ref) {
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| 				action = a;
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| 				break;
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| 			}
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| 		}
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| 		setFrame(action.start);
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| 		paused = false;
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| 		time = 0.0;
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| 	}
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| 
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| 	public function pause() {
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| 		paused = true;
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| 	}
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| 
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| 	public function resume() {
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| 		paused = false;
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| 	}
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| 
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| 	public function remove() {
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| 		Scene.active.tilesheets.remove(this);
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| 	}
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| 
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| 	/**
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| 	 * Set the frame of the current active tilesheet action. Automatically un-pauses action.
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| 	 * @param frame Frame offset with 0 as the first frame of the active action.
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| 	 **/
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| 	public function setFrameOffset(frame: Int) {
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| 		setFrame(action.start + frame);
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| 		paused = false;
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| 	}
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| 
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| 	/**
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| 	 * Returns the current frame.
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| 	 * @return Frame offset with 0 as the first frame of the active action.
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| 	 */
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| 	public function getFrameOffset(): Int {
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| 		return frame - action.start;
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| 	}
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| 
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| 	function update() {
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| 		if (!ready || paused || action.start >= action.end) return;
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| 
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| 		time += Time.renderDelta;
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| 
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| 		var frameTime = 1 / raw.framerate;
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| 		var framesToAdvance = 0;
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| 
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| 		// Check how many animation frames passed during the last render frame
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| 		// and catch up if required. The remaining `time` that couldn't fit in
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| 		// another animation frame will be used in the next `update()`.
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| 		while (time >= frameTime) {
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| 			time -= frameTime;
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| 			framesToAdvance++;
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| 		}
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| 
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| 		if (framesToAdvance != 0) {
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| 			setFrame(frame + framesToAdvance);
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| 		}
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| 	}
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| 
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| 	function setFrame(f: Int) {
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| 		frame = f;
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| 
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| 		// Action end
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| 		if (frame > action.end && action.start < action.end) {
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| 			if (onActionComplete != null) onActionComplete();
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| 			if (action.loop) setFrame(action.start);
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| 			else paused = true;
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| 			return;
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| 		}
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| 
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| 		var tx = frame % raw.tilesx;
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| 		var ty = Std.int(frame / raw.tilesx);
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| 		tileX = tx * (1 / raw.tilesx);
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| 		tileY = ty * (1 / raw.tilesy);
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| 	}
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| }
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