| 115 | const downClientPos = new Vec2(downEvent.clientX, downEvent.clientY); |
| 116 | |
| 117 | function onPointerMove(moveEvent: PointerEvent) { |
| 118 | if (moveEvent.pointerId !== downEvent.pointerId) { |
| 119 | return; |
| 120 | } |
| 121 | |
| 122 | options.move?.(moveEvent, downEvent); |
| 123 | |
| 124 | if (options.dragStartDistance != null) { |
| 125 | if (!dragging) { |
| 126 | const moveClientPos = new Vec2(moveEvent.clientX, moveEvent.clientY); |
| 127 | |
| 128 | const distance = downClientPos.dist(moveClientPos); |
| 129 | |
| 130 | if (options.dragStartDelay != null) { |
| 131 | if (distance > options.dragStartDistance) { |
| 132 | cancel(false); |
| 133 | } |
| 134 | } else { |
| 135 | if (distance > options.dragStartDistance) { |
| 136 | dragging = true; |
| 137 | |
| 138 | options.dragStart?.(moveEvent, downEvent); |
| 139 | } |
| 140 | } |
| 141 | } else { |
| 142 | options.dragUpdate?.(moveEvent, downEvent); |
| 143 | } |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | function onPointerUp(upEvent: PointerEvent) { |
| 148 | if (upEvent.pointerId !== downEvent.pointerId) { |