bd09b243c2
Since I started altering the testbed for better maintainability, I prefered to drop this (tested) large change with a single commit. Some changes below: Put some globals in their correct place, Now Testbed uses the MVC pattern (Model-View Controller). This way it becomes better to maintain than using no pattern in my opinion. Fixed some bugs in the debug draw interface. Of course, updated almost all tests because of the differences. Update script.
144 lines
3.3 KiB
C++
144 lines
3.3 KiB
C++
/*
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* Copyright (c) 2016-2016 Irlan Robson http://www.irlan.net
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef TENSION_MAPPING_H
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#define TENSION_MAPPING_H
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// Hot/Cold color map
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// See http://paulbourke.net/miscellaneous/colourspace/
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static inline b3Color Color(float32 x, float32 a, float32 b)
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{
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x = b3Clamp(x, a, b);
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float32 d = b - a;
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b3Color c(1.0f, 1.0f, 1.0f);
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if (x < a + 0.25f * d)
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{
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c.r = 0.0f;
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c.g = 4.0f * (x - a) / d;
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return c;
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}
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if (x < a + 0.5f * d)
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{
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c.r = 0.0f;
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c.b = 1.0f + 4.0f * (a + 0.25f * d - x) / d;
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return c;
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}
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if (x < a + 0.75f * d)
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{
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c.r = 4.0f * (x - a - 0.5f * d) / d;
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c.b = 0.0f;
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return c;
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}
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c.g = 1.0f + 4.0f * (a + 0.75f * d - x) / d;
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c.b = 0.0f;
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return c;
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}
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class TensionMapping : public SpringClothTest
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{
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public:
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TensionMapping()
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{
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b3SpringClothDef def;
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def.allocator = &m_clothAllocator;
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def.mesh = &m_clothMesh;
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def.density = 0.2f;
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def.ks = 100000.0f;
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def.gravity.Set(0.0f, -10.0f, 0.0f);
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m_cloth.Initialize(def);
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b3AABB3 aabb;
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aabb.m_lower.Set(-5.0f, -1.0f, -6.0f);
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aabb.m_upper.Set(5.0f, 1.0f, -4.0f);
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for (u32 i = 0; i < def.mesh->vertexCount; ++i)
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{
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if (aabb.Contains(def.mesh->vertices[i]))
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{
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m_cloth.SetType(i, b3MassType::e_staticMass);
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}
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}
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}
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void Step()
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{
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float32 dt = g_settings->inv_hertz;
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m_cloth.Step(dt);
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m_cloth.Apply();
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b3StackArray<b3Vec3, 100> T;
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m_cloth.GetTension(T);
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for (u32 i = 0; i < m_clothMesh.triangleCount; ++i)
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{
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b3Triangle* t = m_clothMesh.triangles + i;
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const float32 kMaxT = 100000.0f;
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b3Vec3 f1 = T[t->v1];
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float32 L1 = b3Length(f1);
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b3Color c1 = Color(L1, 0.0f, kMaxT);
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b3Vec3 f2 = T[t->v2];
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float32 L2 = b3Length(f2);
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b3Color c2 = Color(L2, 0.0f, kMaxT);
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b3Vec3 f3 = T[t->v3];
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float32 L3 = b3Length(f3);
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b3Color c3 = Color(L3, 0.0f, kMaxT);
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b3Vec3 v1 = m_clothMesh.vertices[t->v1];
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b3Vec3 v2 = m_clothMesh.vertices[t->v2];
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b3Vec3 v3 = m_clothMesh.vertices[t->v3];
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b3Vec3 n1 = b3Cross(v2 - v1, v3 - v1);
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n1.Normalize();
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b3Vec3 n2 = -n1;
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g_debugDraw->DrawSolidTriangle(n1, v1, c1, v2, c2, v3, c3);
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g_debugDraw->DrawSolidTriangle(n2, v1, c1, v3, c3, v2, c2);
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}
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b3SpringClothStep step = m_cloth.GetStep();
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g_debugDraw->DrawString(b3Color_white, "Iterations = %u", step.iterations);
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if (m_clothDragger.IsSelected() == true)
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{
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g_debugDraw->DrawSegment(m_clothDragger.GetPointA(), m_clothDragger.GetPointB(), b3Color_white);
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}
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}
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static Test* Create()
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{
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return new TensionMapping();
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}
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b3GridMesh<10, 10> m_clothMesh;
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};
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#endif |