55 lines
1.9 KiB
Text
55 lines
1.9 KiB
Text
# ui_keycap.ludic — a key field takes a mouse button as well as a key: listening (and :capturing,
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# which a stylesheet can colour), the next press of the left, right or middle button anywhere is its
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# value (UI_MOUSE_LEFT / RIGHT / MIDDLE), named for what it is, and that press presses nothing else.
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import "ludic.ui"
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program UiKeycap {
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numbers float
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var bind: int = 32
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var pressed: int = 0
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view Keys {
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bind = bind
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pressed = pressed
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on set_bind(v: int) { bind = v }
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on press() { pressed = pressed + 1 }
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}
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const PAGE: string = "<ui><style>.k:capturing { background: #ff0000 }</style><screen name='k'><input type='key' class='k' label='Jump' value='{bind}' on-change='set_bind(event.value)'/><button on-click='press()'>b</button></screen></ui>"
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function frame(x: float, y: float, b: int) -> UiNode {
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let i = new UiInput
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i.x = x
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i.y = y
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i.down = b == 0
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i.down_right = b == 1
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i.down_middle = b == 2
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ui_input(i)
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ui_show("k", view_keys(), 0.0, 0.0, 400.0, 400.0)
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let r: UiNode = ui_nodes("k", view_keys())
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ui_place(r, 0.0, 0.0, 400.0, 400.0)
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return r
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}
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function listen(k: UiNode) -> int {
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frame(k.x + 5.0, k.y + 5.0, 0)
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frame(k.x + 5.0, k.y + 5.0, -1)
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return frame(-1.0, -1.0, -1).children[0].bg
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}
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function take(at: UiNode, b: int) -> string {
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frame(at.x + 5.0, at.y + 5.0, b)
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frame(at.x + 5.0, at.y + 5.0, -1)
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let r = frame(-1.0, -1.0, -1)
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let f = r.children[0]
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return `{bind} {f.children[1].children[0].text} {f.bg}`
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}
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entry {
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ui_backend(new UiBackend)
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ui_load_text(PAGE, "k.xml")
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let r = frame(-1.0, -1.0, -1)
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let k = r.children[0]
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let btn = r.children[1]
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let red = listen(k)
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let right = take(btn, 1)
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listen(k)
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let middle = take(btn, 2)
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listen(k)
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let left = take(btn, 0)
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print(`listening {red} | {right} | {middle} | {left} | pressed {pressed}`)
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}
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}
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