From c620b3b66604ecd84c0447b9093217685cbfbfd9 Mon Sep 17 00:00:00 2001
From: Joseph Davies <deledrius@gmail.com>
Date: Mon, 7 Aug 2017 19:43:14 -0700
Subject: [PATCH] Add plAvLadderMod.

Adds modifier panel and export for Uru-style ladders.
---
 korman/properties/modifiers/avatar.py | 62 +++++++++++++++++++++++++++
 korman/ui/modifiers/avatar.py         |  9 ++++
 2 files changed, 71 insertions(+)

diff --git a/korman/properties/modifiers/avatar.py b/korman/properties/modifiers/avatar.py
index 81c0457..1803393 100644
--- a/korman/properties/modifiers/avatar.py
+++ b/korman/properties/modifiers/avatar.py
@@ -15,6 +15,7 @@
 
 import bpy
 from bpy.props import *
+import mathutils
 from PyHSPlasma import *
 
 from .base import PlasmaModifierProperties, PlasmaModifierLogicWiz
@@ -22,6 +23,67 @@ from ...exporter.explosions import ExportError
 from ...helpers import find_modifier
 from ... import idprops
 
+
+class PlasmaLadderModifier(PlasmaModifierProperties):
+    pl_id = "laddermod"
+
+    bl_category = "Avatar"
+    bl_label = "Ladder"
+    bl_description = "Climbable Ladder"
+    bl_icon = "COLLAPSEMENU"
+
+    is_enabled = BoolProperty(name="Enabled",
+                              description="Ladder enabled by default at Age start",
+                              default=True)
+    direction = EnumProperty(name="Direction",
+                             description="Direction of climb",
+                             items=[("UP", "Up", "The avatar will mount the ladder and climb upward"),
+                                    ("DOWN", "Down", "The avatar will mount the ladder and climb downward"),],
+                             default="DOWN")
+    num_loops = IntProperty(name="Loops",
+                            description="How many full animation loops after the first to play before dismounting",
+                            min=0, default=4)
+    facing_object = PointerProperty(name="Facing Object",
+                                    description="Target object the avatar must be facing through this region to trigger climb (optional)",
+                                    type=bpy.types.Object,
+                                    poll=idprops.poll_mesh_objects)
+
+    def export(self, exporter, bo, so):
+        # Create the ladder modifier
+        mod = exporter.mgr.find_create_object(plAvLadderMod, so=so, name=self.key_name)
+        mod.type = plAvLadderMod.kBig
+        mod.loops = self.num_loops
+        mod.enabled = self.is_enabled
+        mod.goingUp = self.direction == "UP"
+
+        # Create vector pointing from the Facing Object to the Detector.
+        # Animation only activates if the avatar is facing it within
+        # engine-defined (45 degree) tolerance
+        if self.facing_object is not None:
+            # Use object if one has been selected
+            ladderVec = self.facing_object.matrix_world.translation - bo.matrix_world.translation
+        else:
+            # Make our own artificial target -1.0 units back on the local Y axis.
+            world = bo.matrix_world.copy()
+            world.invert()
+            target = bo.location - (mathutils.Vector((0.0, 1.0, 0.0)) * world)
+            ladderVec = target - bo.matrix_local.translation
+        mod.ladderView = hsVector3(ladderVec.x, ladderVec.y, 0.0)
+        mod.ladderView.normalize()
+
+        # Generate the detector's physical bounds
+        det_name = "{}_LadderDetector".format(self.id_data.name)
+        bounds = bo.plasma_modifiers.collision.bounds
+        simIface, physical = exporter.physics.generate_physical(bo, so, bounds, det_name)
+        physical.memberGroup = plSimDefs.kGroupDetector
+        physical.reportGroup |= 1 << plSimDefs.kGroupAvatar
+        physical.boundsType = plSimDefs.kHullBounds
+
+    @property
+    def requires_actor(self):
+        return True
+
+
 sitting_approach_flags = [("kApproachFront", "Front", "Approach from the font"),
                           ("kApproachLeft", "Left", "Approach from the left"),
                           ("kApproachRight", "Right", "Approach from the right"),
diff --git a/korman/ui/modifiers/avatar.py b/korman/ui/modifiers/avatar.py
index 31cc508..11db188 100644
--- a/korman/ui/modifiers/avatar.py
+++ b/korman/ui/modifiers/avatar.py
@@ -17,6 +17,15 @@ import bpy
 
 from ...helpers import find_modifier
 
+def laddermod(modifier, layout, context):
+    layout.label(text="Avatar climbs facing negative Y.")
+
+    layout.prop(modifier, "is_enabled")
+    layout.prop(modifier, "num_loops")
+    layout.prop(modifier, "direction")
+
+    layout.prop(modifier, "facing_object", icon="MESH_DATA")
+
 def sittingmod(modifier, layout, context):
     layout.row().prop(modifier, "approach")