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authorchai <chaifix@163.com>2021-12-13 00:07:19 +0800
committerchai <chaifix@163.com>2021-12-13 00:07:19 +0800
commit60cbbdec07ab7a5636eac5b3c024ae44e937f4d4 (patch)
treeb2c7b0a868f18159dbc43d8954e1bd7668549a88 /Client/ThirdParty/Box2D/testbed/tests/distance_test.cpp
+init
Diffstat (limited to 'Client/ThirdParty/Box2D/testbed/tests/distance_test.cpp')
-rw-r--r--Client/ThirdParty/Box2D/testbed/tests/distance_test.cpp139
1 files changed, 139 insertions, 0 deletions
diff --git a/Client/ThirdParty/Box2D/testbed/tests/distance_test.cpp b/Client/ThirdParty/Box2D/testbed/tests/distance_test.cpp
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+++ b/Client/ThirdParty/Box2D/testbed/tests/distance_test.cpp
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+// MIT License
+
+// Copyright (c) 2019 Erin Catto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#include "test.h"
+#include "box2d/b2_distance.h"
+
+class DistanceTest : public Test
+{
+public:
+ DistanceTest()
+ {
+ {
+ m_transformA.SetIdentity();
+ m_transformA.p.Set(0.0f, -0.2f);
+ m_polygonA.SetAsBox(10.0f, 0.2f);
+ }
+
+ {
+ m_positionB.Set(12.017401f, 0.13678508f);
+ m_angleB = -0.0109265f;
+ m_transformB.Set(m_positionB, m_angleB);
+
+ m_polygonB.SetAsBox(2.0f, 0.1f);
+ }
+ }
+
+ static Test* Create()
+ {
+ return new DistanceTest;
+ }
+
+ void Step(Settings& settings) override
+ {
+ Test::Step(settings);
+
+ b2DistanceInput input;
+ input.proxyA.Set(&m_polygonA, 0);
+ input.proxyB.Set(&m_polygonB, 0);
+ input.transformA = m_transformA;
+ input.transformB = m_transformB;
+ input.useRadii = true;
+ b2SimplexCache cache;
+ cache.count = 0;
+ b2DistanceOutput output;
+ b2Distance(&output, &cache, &input);
+
+ g_debugDraw.DrawString(5, m_textLine, "distance = %g", output.distance);
+ m_textLine += m_textIncrement;
+
+ g_debugDraw.DrawString(5, m_textLine, "iterations = %d", output.iterations);
+ m_textLine += m_textIncrement;
+
+ {
+ b2Color color(0.9f, 0.9f, 0.9f);
+ b2Vec2 v[b2_maxPolygonVertices];
+ for (int32 i = 0; i < m_polygonA.m_count; ++i)
+ {
+ v[i] = b2Mul(m_transformA, m_polygonA.m_vertices[i]);
+ }
+ g_debugDraw.DrawPolygon(v, m_polygonA.m_count, color);
+
+ for (int32 i = 0; i < m_polygonB.m_count; ++i)
+ {
+ v[i] = b2Mul(m_transformB, m_polygonB.m_vertices[i]);
+ }
+ g_debugDraw.DrawPolygon(v, m_polygonB.m_count, color);
+ }
+
+ b2Vec2 x1 = output.pointA;
+ b2Vec2 x2 = output.pointB;
+
+ b2Color c1(1.0f, 0.0f, 0.0f);
+ g_debugDraw.DrawPoint(x1, 4.0f, c1);
+
+ b2Color c2(1.0f, 1.0f, 0.0f);
+ g_debugDraw.DrawPoint(x2, 4.0f, c2);
+ }
+
+ void Keyboard(int key) override
+ {
+ switch (key)
+ {
+ case GLFW_KEY_A:
+ m_positionB.x -= 0.1f;
+ break;
+
+ case GLFW_KEY_D:
+ m_positionB.x += 0.1f;
+ break;
+
+ case GLFW_KEY_S:
+ m_positionB.y -= 0.1f;
+ break;
+
+ case GLFW_KEY_W:
+ m_positionB.y += 0.1f;
+ break;
+
+ case GLFW_KEY_Q:
+ m_angleB += 0.1f * b2_pi;
+ break;
+
+ case GLFW_KEY_E:
+ m_angleB -= 0.1f * b2_pi;
+ break;
+ }
+
+ m_transformB.Set(m_positionB, m_angleB);
+ }
+
+ b2Vec2 m_positionB;
+ float m_angleB;
+
+ b2Transform m_transformA;
+ b2Transform m_transformB;
+ b2PolygonShape m_polygonA;
+ b2PolygonShape m_polygonB;
+};
+
+static int testIndex = RegisterTest("Geometry", "Distance Test", DistanceTest::Create);