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https://github.com/scratchfoundation/scratch-vm.git
synced 2024-12-24 06:52:40 -05:00
Update looks implementation
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parent
43d061227c
commit
14600d7893
3 changed files with 96 additions and 23 deletions
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@ -21,10 +21,11 @@ class Scratch3LooksBlocks {
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this._onTargetMoved = this._onTargetMoved.bind(this);
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this._onResetBubbles = this._onResetBubbles.bind(this);
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this._onTargetWillExit = this._onTargetWillExit.bind(this);
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// Reset all bubbles on start/stop
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this.runtime.on('PROJECT_RUN_START', this._onResetBubbles);
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this.runtime.on('PROJECT_RUN_STOP', this._onResetBubbles);
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this.runtime.on('PROJECT_STOP_ALL', this._onResetBubbles);
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this.runtime.on('targetWasRemoved', this._onTargetWillExit);
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}
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/**
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@ -74,29 +75,54 @@ class Scratch3LooksBlocks {
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}
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/**
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* Handle a target which has moved. This only fires when the bubble is visible.
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* Handle a target which has moved.
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* @param {RenderedTarget} target - the target which has moved.
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* @private
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*/
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_onTargetMoved (target) {
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const bubbleState = this._getBubbleState(target);
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if (bubbleState.drawableId) {
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if (bubbleState.drawableId && bubbleState.visible) {
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this._checkBubbleBounds(target);
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this._positionBubble(target);
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}
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}
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_onResetBubbles () {
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// for (let n = 0; n < this.runtime.targets.length; n++) {
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// const target = this.runtime.targets[n];
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// const bubbleState = this._getBubbleState(target);
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// if (bubbleState.drawableId) {
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// this._clearBubble(target);
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// }
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// }
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/**
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* Handle a target which has moved.
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* @param {RenderedTarget} target - the target which has moved.
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* @private
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*/
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_onTargetWillExit (target) {
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const bubbleState = this._getBubbleState(target);
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if (bubbleState.drawableId) {
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this.runtime.renderer.destroyDrawable(bubbleState.drawableId);
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}
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if (bubbleState.skinId) {
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this.runtime.renderer.destroySkin(bubbleState.skinId);
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}
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}
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/**
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* Handle project start/stop by clearing all visible bubbles.
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* @private
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*/
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_onResetBubbles () {
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for (let n = 0; n < this.runtime.targets.length; n++) {
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const target = this.runtime.targets[n];
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const bubbleState = this._getBubbleState(target);
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if (bubbleState.drawableId) {
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this._clearBubble(target);
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}
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}
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}
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/**
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* Position the bubble of a target.
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* @param {!Target} target Target whose bubble needs positioning.
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* @private
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*/
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_positionBubble (target) {
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const bubbleState = this._getBubbleState(target);
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const [bubbleWidth, bubbleHeight] = this.runtime.renderer.getSkinSize(bubbleState.drawableId);
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@ -113,6 +139,12 @@ class Scratch3LooksBlocks {
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this.runtime.requestRedraw();
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}
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/**
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* Check whether a bubble needs to be flipped. If so, flip the `onSpriteRight` state
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* and call the bubble render again.
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* @param {!Target} target Target whose bubble needs positioning.
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* @private
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*/
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_checkBubbleBounds (target) {
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const bubbleState = this._getBubbleState(target);
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const [bubbleWidth, _] = this.runtime.renderer.getSkinSize(bubbleState.drawableId);
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@ -127,6 +159,13 @@ class Scratch3LooksBlocks {
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}
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}
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/**
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* Create a visible bubble for a target. If a bubble exists for the target,
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* just set it to visible and update the type/text. Otherwise create a new
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* bubble and update the relevant custom state.
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* @param {!Target} target Target who needs a bubble.
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* @private
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*/
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_renderBubble (target) {
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const bubbleState = this._getBubbleState(target);
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const {type, text, onSpriteRight} = bubbleState;
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@ -163,29 +202,38 @@ class Scratch3LooksBlocks {
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this._positionBubble(target);
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}
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/**
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* The entry point for say/think blocks. Clears existing bubble if the text is empty.
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* Set the bubble custom state and then call _renderBubble.
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* @param {!Target} target Target that say/think blocks are being called on.
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* @param {!string} type Either "say" or "think"
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* @param {!string} text The text for the bubble, empty string clears the bubble.
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* @private
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*/
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_updateBubble (target, type, text) {
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// Say/think empty string should clear any bubble
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if (text === '') {
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this._clearBubble(target);
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} else {
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const bubbleState = this._getBubbleState(target);
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bubbleState.type = type;
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bubbleState.text = text;
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this._renderBubble(target);
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}
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}
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/**
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* Hide the bubble for a given target.
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* @param {!Target} target Target that say/think blocks are being called on.
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* @private
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*/
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_clearBubble (target) {
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const bubbleState = this._getBubbleState(target);
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bubbleState.visible = false;
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this.runtime.renderer.updateDrawableProperties(bubbleState.drawableId, {
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visible: bubbleState.visible
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});
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// @TODO is this safe? It could have been already removed?
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target.removeListener(RenderedTarget.EVENT_TARGET_MOVED, this._onTargetMoved);
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if (bubbleState.drawableId) {
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this.runtime.renderer.updateDrawableProperties(bubbleState.drawableId, {
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visible: bubbleState.visible
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});
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}
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this.runtime.requestRedraw();
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}
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@ -280,7 +280,8 @@ class Runtime extends EventEmitter {
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}
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/**
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* Event name for glowing the green flag
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* Event name when threads start running.
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* Used by the UI to indicate running status.
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* @const {string}
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*/
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static get PROJECT_RUN_START () {
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@ -288,13 +289,23 @@ class Runtime extends EventEmitter {
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}
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/**
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* Event name for unglowing the green flag
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* Event name when threads stop running
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* Used by the UI to indicate not-running status.
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* @const {string}
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*/
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static get PROJECT_RUN_STOP () {
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return 'PROJECT_RUN_STOP';
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}
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/**
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* Event name for project being stopped or restarted by the user.
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* Used by blocks that need to reset state.
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* @const {string}
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*/
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static get PROJECT_STOP_ALL () {
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return 'PROJECT_STOP_ALL';
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}
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/**
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* Event name for visual value report.
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* @const {string}
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@ -905,6 +916,9 @@ class Runtime extends EventEmitter {
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* Stop "everything."
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*/
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stopAll () {
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// Emit stop event to allow blocks to clean up any state.
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this.emit(Runtime.PROJECT_STOP_ALL);
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// Dispose all clones.
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const newTargets = [];
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for (let i = 0; i < this.targets.length; i++) {
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@ -1227,6 +1241,16 @@ class Runtime extends EventEmitter {
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this.emit('targetWasCreated', newTarget, sourceTarget);
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}
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/**
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* Report that a new target has been created, possibly by cloning an existing target.
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* @param {Target} newTarget - the newly created target.
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* @param {Target} [sourceTarget] - the target used as a source for the new clone, if any.
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* @fires Runtime#targetWasCreated
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*/
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fireTargetWasRemoved (newTarget, sourceTarget) {
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this.emit('targetWasRemoved', newTarget, sourceTarget);
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}
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/**
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* Get a target representing the Scratch stage, if one exists.
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* @return {?Target} The target, if found.
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@ -71,6 +71,7 @@ class Sprite {
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* @param {!RenderedTarget} clone - the clone to be removed.
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*/
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removeClone (clone) {
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this.runtime.fireTargetWasRemoved(clone);
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const cloneIndex = this.clones.indexOf(clone);
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if (cloneIndex >= 0) {
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this.clones.splice(cloneIndex, 1);
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