impl: change_brush_transparency, set_brush_tranparency

asdf
dalkak2 · Dec 26, 2023 · d70ea86 · d70ea86
1 parent b3fc678
commit d70ea86
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Showing 2 changed files with 21 additions and 0 deletions.
diff --git a/src/Entry.ts b/src/Entry.ts
@@ -462,6 +462,15 @@ export class Entry {
     set_thickness(n: number, obj: EntryContainer) {
         obj.strokeThickness = n
     }
+    change_brush_transparency(n: number, obj: EntryContainer) {
+        obj.brushTransparency += n
+    }
+    /**
+     * "TRAN-PARENCY!"
+     */
+    set_brush_tranparency(n: number, obj: EntryContainer) {
+        obj.brushTransparency = n
+    }
     brush_erase_all(obj: EntryContainer) {
         obj._brushGraphics?.destroy()
         delete obj._brushGraphics

diff --git a/src/obj/EntryContainer.ts b/src/obj/EntryContainer.ts
@@ -44,6 +44,7 @@ export abstract class EntryContainer extends EventEmitter {
             this._brushGraphics = new Graphics()
             this.strokeColor = this.strokeColor
             this.strokeThickness = this.strokeThickness
+            this.brushTransparency = this.brushTransparency
 
             this._lineListener = () => {
                 this._brushGraphics!.lineTo(
@@ -84,6 +85,17 @@ export abstract class EntryContainer extends EventEmitter {
             this._brushGraphics.strokeStyle.width = n
         }
     }
+
+    _brushTransparency?: number
+    get brushTransparency() {
+        return this._brushTransparency || 0
+    }
+    set brushTransparency(n: number) {
+        this._brushTransparency = n
+        if (this._brushGraphics) {
+            this._brushGraphics.alpha = 1 - n / 100
+        }
+    }
 
     abstract pixiSprite: Container