forked from Mirrors/openclonk
107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/**
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Floor Switch
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A switch which is triggered when sufficient mass lies on top of it.
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@author Maikel
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*/
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#include Library_Switch
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local y_position;
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local up_action, down_action;
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public func Initialize()
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{
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y_position = 0;
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AddTimer("CheckObjects", 5);
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return;
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}
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public func CheckObjects()
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{
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// Find all the objects on the switch.
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var obj_on_switch = FindObjects(Find_InRect(-20, -30, 40, 30), Find_AtRect(-20, -10, 40, 8), Find_NoContainer(), Find_Not(Find_Category(C4D_StaticBack)));
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for (var index = GetLength(obj_on_switch) - 1; index >= 0; index--)
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{
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var obj = obj_on_switch[index];
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if (!obj->GetContact(-1, CNAT_Bottom) || obj->Stuck())
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RemoveArrayIndex(obj_on_switch, index);
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}
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// Get the total mass on the switch.
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var total_mass = 0;
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for (var obj in obj_on_switch)
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total_mass += obj->GetMass();
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// Determine desired position.
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var desired_y = 0;
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if (total_mass >= this.SwitchMass)
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desired_y = this.MoveDownDistance;
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// Don't do anything if at desired position.
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if (y_position == desired_y)
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return;
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// Determine movement change and move switch plus object on it.
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var change = BoundBy(desired_y - y_position, -1, 1);
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for (var obj in obj_on_switch)
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obj->SetPosition(obj->GetX(), obj->GetY() + change);
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SetPosition(GetX(), GetY() + change);
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// Do not make objects stuck.
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for (var obj in obj_on_switch)
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if (obj->Stuck())
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obj->SetPosition(obj->GetX(), obj->GetY() - change);
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y_position += change;
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// Do moving of target door or perform user actions.
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if (y_position == desired_y)
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{
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if (desired_y == 0)
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{
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SetSwitchState(false);
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UserAction->EvaluateAction(up_action, this);
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}
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else if (desired_y == this.MoveDownDistance)
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{
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SetSwitchState(true);
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UserAction->EvaluateAction(down_action, this);
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}
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}
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return;
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}
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public func SetActions(new_up_action, new_down_action)
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{
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up_action = new_up_action;
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down_action = new_down_action;
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return true;
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}
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/*-- Saving --*/
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public func SaveScenarioObject(proplist props)
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{
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if (!inherited(props, ...)) return false;
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if (up_action || down_action) props->AddCall("Action", this, "SetActions", up_action, down_action);
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if (this.SwitchMass != GetID().SwitchMass) props->AddSet("SwitchMass", this, "SwitchMass", this.SwitchMass);
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return true;
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}
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/*-- Editor --*/
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public func Definition(proplist def)
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{
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if (!def.EditorProps) def.EditorProps = {};
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def.EditorProps.up_action = new UserAction.Prop { Name="$UpAction$" };
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def.EditorProps.down_action = new UserAction.Prop { Name="$DownAction$" };
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def.EditorProps.SwitchMass = { Type = "int", Name = "$SwitchMassAction$", EditorHelp = "$SwitchMassActionHelp$" };
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return _inherited(def, ...);
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}
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/*-- Properties --*/
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local Name = "$Name$";
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local Description = "$Description$";
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local Plane = 200;
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local SwitchMass = 100;
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local MoveDownDistance = 3;
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