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100 lines
2.7 KiB
100 lines
2.7 KiB
3 years ago
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// Gem stone totem socket.
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/*
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The Totem is a type of key-door that holds onto its corresponding
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Gemstone. When a doodad holding the right Gemstone touches the
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totem, the totem takes the gemstone and activates.
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If the Totem is not linked to any other Totems, it immediately
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sends a power(true) signal upon activation.
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If the Totem is linked to other Totems, it waits until all totems
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have been activated before it will emit a power signal. Only one
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such totem needs to be linked to e.g. an Electric Door - no matter
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which totem is solved last, they'll all emit a power signal when
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all of their linked totems are activated.
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*/
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let color = Self.GetTag("color"),
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keyname = "gem-"+color+".doodad",
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activated = false,
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linkedReceiver = false, // is linked to a non-totem which might want power
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totems = {}, // linked totems
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shimmerFreq = 1000;
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function main() {
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// Show the hollow socket on level load (last layer)
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Self.ShowLayer(4);
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// Find any linked totems.
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for (let link of Self.GetLinks()) {
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if (link.Filename.indexOf("gem-totem") > -1) {
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totems[link.ID()] = false;
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} else {
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linkedReceiver = true;
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}
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}
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// Shimmer animation is just like the gemstones: first 4 frames
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// are the filled socket sprites.
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Self.AddAnimation("shimmer", 100, [0, 1, 2, 3, 0]);
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Events.OnCollide((e) => {
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if (activated) return;
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if (e.Actor.IsMobile() && e.Settled) {
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// Do they have our gemstone?
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let hasKey = e.Actor.HasItem(keyname) >= 0;
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if (!hasKey) {
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return;
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}
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// Take the gemstone.
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e.Actor.RemoveItem(keyname, 1);
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Self.ShowLayer(0);
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// Emit to our linked totem neighbors.
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activated = true;
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Message.Publish("gem-totem:activated", Self.ID());
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tryPower();
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}
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});
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Message.Subscribe("gem-totem:activated", (totemId) => {
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totems[totemId] = true;
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tryPower();
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})
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setInterval(() => {
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if (activated) {
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Self.PlayAnimation("shimmer", null);
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}
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}, shimmerFreq);
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}
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// Try to send a power signal for an activated totem.
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function tryPower() {
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// Only emit power if we are linked to something other than a totem.
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if (!linkedReceiver) {
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return;
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}
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// Can't if any of our linked totems aren't activated.
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try {
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for (let totemId of Object.keys(totems)) {
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if (totems[totemId] === false) {
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return;
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}
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}
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} catch(e) {
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console.error("Caught: %s", e);
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}
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// Can't if we aren't powered.
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if (activated === false) {
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return;
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}
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// Emit power!
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Message.Publish("power", true);
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}
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