Off-Mesh link progress (not fully working).

2026-10-06 00:45:35 +00:00 · 2010-01-10 17:21:01 +00:00
parent 5c4f1ed0bd
commit 4ad8dafa40
15 changed files with 5769 additions and 695 deletions
--- a/RecastDemo/Source/OffMeshLinkTool.cpp
+++ b/RecastDemo/Source/OffMeshLinkTool.cpp
@@ -0,0 +1,140 @@
+//
+// Copyright (c) 2009 Mikko Mononen memon@inside.org
+//
+// This software is provided 'as-is', without any express or implied
+// warranty.  In no event will the authors be held liable for any damages
+// arising from the use of this software.
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would be
+//    appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+//
+
+#define _USE_MATH_DEFINES
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+#include <float.h>
+#include "SDL.h"
+#include "SDL_opengl.h"
+#include "imgui.h"
+#include "OffMeshLinkTool.h"
+#include "InputGeom.h"
+#include "Sample.h"
+#include "Recast.h"
+#include "RecastDebugDraw.h"
+#include "DetourDebugDraw.h"
+
+#ifdef WIN32
+#	define snprintf _snprintf
+#endif
+
+OffMeshLinkTool::OffMeshLinkTool() :
+	m_sample(0),
+	m_hitPosSet(0)
+{
+}
+
+OffMeshLinkTool::~OffMeshLinkTool()
+{
+}
+
+void OffMeshLinkTool::init(Sample* sample)
+{
+	m_sample = sample;
+}
+
+void OffMeshLinkTool::reset()
+{
+	m_hitPosSet = false;
+}
+
+void OffMeshLinkTool::handleMenu()
+{
+	if (m_hitPosSet)
+	{
+		imguiValue("Click to set link start.");
+	}
+	else
+	{
+		imguiValue("Click to set link end.");
+	}
+}
+
+void OffMeshLinkTool::handleClick(const float* p, bool shift)
+{
+	if (!m_sample) return;
+	InputGeom* geom = m_sample->getInputGeom();
+	if (!geom) return;
+
+	if (shift)
+	{
+		// Delete
+		// Find nearest link end-point
+		float nearestDist = FLT_MAX;
+		int nearestIndex = -1;
+		const float* verts = geom->getOffMeshLinkVertices();
+		for (int i = 0; i < geom->getOffMeshLinkCount()*2; ++i)
+		{
+			const float* v = &verts[i*3];
+			float d = vdistSqr(p, v);
+			if (d < nearestDist)
+			{
+				nearestDist = d;
+				nearestIndex = i/2; // Each link has two vertices.
+			}
+		}
+		// If end point close enough, delete it.
+		if (nearestIndex != -1 &&
+			sqrtf(nearestDist) < m_sample->getAgentRadius())
+		{
+			geom->deleteOffMeshLink(nearestIndex);
+		}
+	}
+	else
+	{
+		// Create	
+		if (!m_hitPosSet)
+		{
+			vcopy(m_hitPos, p);
+			m_hitPosSet = true;
+		}
+		else
+		{
+			geom->addOffMeshLink(m_hitPos, p);
+			m_hitPosSet = false;
+		}
+	}
+	
+}
+
+void OffMeshLinkTool::handleRender()
+{
+	DebugDrawGL dd;
+	const float s = m_sample->getAgentRadius();
+	
+	if (m_hitPosSet)
+		duDebugDrawCross(&dd, m_hitPos[0],m_hitPos[1]+0.1f,m_hitPos[2], s, duRGBA(0,0,0,128), 2.0f);
+
+	InputGeom* geom = m_sample->getInputGeom();
+	if (geom)
+		geom->drawLinks(&dd, s);
+}
+
+void OffMeshLinkTool::handleRenderOverlay(double* proj, double* model, int* view)
+{
+	GLdouble x, y, z;
+	
+	// Draw start and end point labels
+	if (m_hitPosSet && gluProject((GLdouble)m_hitPos[0], (GLdouble)m_hitPos[1], (GLdouble)m_hitPos[2],
+								model, proj, view, &x, &y, &z))
+	{
+		imguiDrawText((int)x, (int)(y-25), IMGUI_ALIGN_CENTER, "Start", imguiRGBA(0,0,0,220));
+	}
+}