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/*
* Copyright (c) 2006-2013 Erin Catto http://www.box2d.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.
*/
#include "DebugDraw.h"
#if defined(__APPLE_CC__)
#include <OpenGL/gl3.h>
#else
#include "glew/glew.h"
#endif
#include "glfw/glfw3.h"
#include <stdio.h>
#include <stdarg.h>
#include "imgui/imgui.h"
#define BUFFER_OFFSET(x) ((const void*) (x))
DebugDraw g_debugDraw;
Camera g_camera;
//
b2Vec2 Camera::ConvertScreenToWorld(const b2Vec2& ps)
{
float32 w = float32(m_width);
float32 h = float32(m_height);
float32 u = ps.x / w;
float32 v = (h - ps.y) / h;
float32 ratio = w / h;
b2Vec2 extents(ratio * 25.0f, 25.0f);
extents *= m_zoom;
b2Vec2 lower = m_center - extents;
b2Vec2 upper = m_center + extents;
b2Vec2 pw;
pw.x = (1.0f - u) * lower.x + u * upper.x;
pw.y = (1.0f - v) * lower.y + v * upper.y;
return pw;
}
//
b2Vec2 Camera::ConvertWorldToScreen(const b2Vec2& pw)
{
float32 w = float32(m_width);
float32 h = float32(m_height);
float32 ratio = w / h;
b2Vec2 extents(ratio * 25.0f, 25.0f);
extents *= m_zoom;
b2Vec2 lower = m_center - extents;
b2Vec2 upper = m_center + extents;
float32 u = (pw.x - lower.x) / (upper.x - lower.x);
float32 v = (pw.y - lower.y) / (upper.y - lower.y);
b2Vec2 ps;
ps.x = u * w;
ps.y = (1.0f - v) * h;
return ps;
}
// Convert from world coordinates to normalized device coordinates.
// http://www.songho.ca/opengl/gl_projectionmatrix.html
void Camera::BuildProjectionMatrix(float32* m, float32 zBias)
{
float32 w = float32(m_width);
float32 h = float32(m_height);
float32 ratio = w / h;
b2Vec2 extents(ratio * 25.0f, 25.0f);
extents *= m_zoom;
b2Vec2 lower = m_center - extents;
b2Vec2 upper = m_center + extents;
m[0] = 2.0f / (upper.x - lower.x);
m[1] = 0.0f;
m[2] = 0.0f;
m[3] = 0.0f;
m[4] = 0.0f;
m[5] = 2.0f / (upper.y - lower.y);
m[6] = 0.0f;
m[7] = 0.0f;
m[8] = 0.0f;
m[9] = 0.0f;
m[10] = 1.0f;
m[11] = 0.0f;
m[12] = -(upper.x + lower.x) / (upper.x - lower.x);
m[13] = -(upper.y + lower.y) / (upper.y - lower.y);
m[14] = zBias;
m[15] = 1.0f;
}
//
static void sCheckGLError()
{
GLenum errCode = glGetError();
if (errCode != GL_NO_ERROR)
{
fprintf(stderr, "OpenGL error = %d\n", errCode);
assert(false);
}
}
// Prints shader compilation errors
static void sPrintLog(GLuint object)
{
GLint log_length = 0;
if (glIsShader(object))
glGetShaderiv(object, GL_INFO_LOG_LENGTH, &log_length);
else if (glIsProgram(object))
glGetProgramiv(object, GL_INFO_LOG_LENGTH, &log_length);
else
{
fprintf(stderr, "printlog: Not a shader or a program\n");
return;
}
char* log = (char*)malloc(log_length);
if (glIsShader(object))
glGetShaderInfoLog(object, log_length, NULL, log);
else if (glIsProgram(object))
glGetProgramInfoLog(object, log_length, NULL, log);
fprintf(stderr, "%s", log);
free(log);
}
//
static GLuint sCreateShaderFromString(const char* source, GLenum type)
{
GLuint res = glCreateShader(type);
const char* sources[] = { source };
glShaderSource(res, 1, sources, NULL);
glCompileShader(res);
GLint compile_ok = GL_FALSE;
glGetShaderiv(res, GL_COMPILE_STATUS, &compile_ok);
if (compile_ok == GL_FALSE)
{
fprintf(stderr, "Error compiling shader of type %d!\n", type);
sPrintLog(res);
glDeleteShader(res);
return 0;
}
return res;
}
//
static GLuint sCreateShaderProgram(const char* vs, const char* fs)
{
GLuint vsId = sCreateShaderFromString(vs, GL_VERTEX_SHADER);
GLuint fsId = sCreateShaderFromString(fs, GL_FRAGMENT_SHADER);
assert(vsId != 0 && fsId != 0);
GLuint programId = glCreateProgram();
glAttachShader(programId, vsId);
glAttachShader(programId, fsId);
glBindFragDataLocation(programId, 0, "color");
glLinkProgram(programId);
glDeleteShader(vsId);
glDeleteShader(fsId);
GLint status = GL_FALSE;
glGetProgramiv(programId, GL_LINK_STATUS, &status);
assert(status != GL_FALSE);
return programId;
}
//
struct GLRenderPoints
{
void Create()
{
const char* vs = \
"#version 330\n"
"uniform mat4 projectionMatrix;\n"
"layout(location = 0) in vec2 v_position;\n"
"layout(location = 1) in vec4 v_color;\n"
"layout(location = 2) in float v_size;\n"
"out vec4 f_color;\n"
"void main(void)\n"
"{\n"
" f_color = v_color;\n"
" gl_Position = projectionMatrix * vec4(v_position, 0.0f, 1.0f);\n"
" gl_PointSize = v_size;\n"
"}\n";
const char* fs = \
"#version 330\n"
"in vec4 f_color;\n"
"out vec4 color;\n"
"void main(void)\n"
"{\n"
" color = f_color;\n"
"}\n";
m_programId = sCreateShaderProgram(vs, fs);
m_projectionUniform = glGetUniformLocation(m_programId, "projectionMatrix");
m_vertexAttribute = 0;
m_colorAttribute = 1;
m_sizeAttribute = 2;
// Generate
glGenVertexArrays(1, &m_vaoId);
glGenBuffers(3, m_vboIds);
glBindVertexArray(m_vaoId);
glEnableVertexAttribArray(m_vertexAttribute);
glEnableVertexAttribArray(m_colorAttribute);
glEnableVertexAttribArray(m_sizeAttribute);
// Vertex buffer
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[0]);
glVertexAttribPointer(m_vertexAttribute, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_vertices), m_vertices, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[1]);
glVertexAttribPointer(m_colorAttribute, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_colors), m_colors, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[2]);
glVertexAttribPointer(m_sizeAttribute, 1, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_sizes), m_sizes, GL_DYNAMIC_DRAW);
sCheckGLError();
// Cleanup
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
m_count = 0;
}
void Destroy()
{
if (m_vaoId)
{
glDeleteVertexArrays(1, &m_vaoId);
glDeleteBuffers(2, m_vboIds);
m_vaoId = 0;
}
if (m_programId)
{
glDeleteProgram(m_programId);
m_programId = 0;
}
}
void Vertex(const b2Vec2& v, const b2Color& c, float32 size)
{
if (m_count == e_maxVertices)
Flush();
m_vertices[m_count] = v;
m_colors[m_count] = c;
m_sizes[m_count] = size;
++m_count;
}
void Flush()
{
if (m_count == 0)
return;
glUseProgram(m_programId);
float32 proj[16] = { 0.0f };
g_camera.BuildProjectionMatrix(proj, 0.0f);
glUniformMatrix4fv(m_projectionUniform, 1, GL_FALSE, proj);
glBindVertexArray(m_vaoId);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[0]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(b2Vec2), m_vertices);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[1]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(b2Color), m_colors);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[2]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(float32), m_sizes);
glEnable(GL_PROGRAM_POINT_SIZE);
glDrawArrays(GL_POINTS, 0, m_count);
glDisable(GL_PROGRAM_POINT_SIZE);
sCheckGLError();
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glUseProgram(0);
m_count = 0;
}
enum { e_maxVertices = 512 };
b2Vec2 m_vertices[e_maxVertices];
b2Color m_colors[e_maxVertices];
float32 m_sizes[e_maxVertices];
int32 m_count;
GLuint m_vaoId;
GLuint m_vboIds[3];
GLuint m_programId;
GLint m_projectionUniform;
GLint m_vertexAttribute;
GLint m_colorAttribute;
GLint m_sizeAttribute;
};
//
struct GLRenderLines
{
void Create()
{
const char* vs = \
"#version 330\n"
"uniform mat4 projectionMatrix;\n"
"layout(location = 0) in vec2 v_position;\n"
"layout(location = 1) in vec4 v_color;\n"
"out vec4 f_color;\n"
"void main(void)\n"
"{\n"
" f_color = v_color;\n"
" gl_Position = projectionMatrix * vec4(v_position, 0.0f, 1.0f);\n"
"}\n";
const char* fs = \
"#version 330\n"
"in vec4 f_color;\n"
"out vec4 color;\n"
"void main(void)\n"
"{\n"
" color = f_color;\n"
"}\n";
m_programId = sCreateShaderProgram(vs, fs);
m_projectionUniform = glGetUniformLocation(m_programId, "projectionMatrix");
m_vertexAttribute = 0;
m_colorAttribute = 1;
// Generate
glGenVertexArrays(1, &m_vaoId);
glGenBuffers(2, m_vboIds);
glBindVertexArray(m_vaoId);
glEnableVertexAttribArray(m_vertexAttribute);
glEnableVertexAttribArray(m_colorAttribute);
// Vertex buffer
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[0]);
glVertexAttribPointer(m_vertexAttribute, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_vertices), m_vertices, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[1]);
glVertexAttribPointer(m_colorAttribute, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_colors), m_colors, GL_DYNAMIC_DRAW);
sCheckGLError();
// Cleanup
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
m_count = 0;
}
void Destroy()
{
if (m_vaoId)
{
glDeleteVertexArrays(1, &m_vaoId);
glDeleteBuffers(2, m_vboIds);
m_vaoId = 0;
}
if (m_programId)
{
glDeleteProgram(m_programId);
m_programId = 0;
}
}
void Vertex(const b2Vec2& v, const b2Color& c)
{
if (m_count == e_maxVertices)
Flush();
m_vertices[m_count] = v;
m_colors[m_count] = c;
++m_count;
}
void Flush()
{
if (m_count == 0)
return;
glUseProgram(m_programId);
float32 proj[16] = { 0.0f };
g_camera.BuildProjectionMatrix(proj, 0.1f);
glUniformMatrix4fv(m_projectionUniform, 1, GL_FALSE, proj);
glBindVertexArray(m_vaoId);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[0]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(b2Vec2), m_vertices);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[1]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(b2Color), m_colors);
glDrawArrays(GL_LINES, 0, m_count);
sCheckGLError();
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glUseProgram(0);
m_count = 0;
}
enum { e_maxVertices = 2 * 512 };
b2Vec2 m_vertices[e_maxVertices];
b2Color m_colors[e_maxVertices];
int32 m_count;
GLuint m_vaoId;
GLuint m_vboIds[2];
GLuint m_programId;
GLint m_projectionUniform;
GLint m_vertexAttribute;
GLint m_colorAttribute;
};
//
struct GLRenderTriangles
{
void Create()
{
const char* vs = \
"#version 330\n"
"uniform mat4 projectionMatrix;\n"
"layout(location = 0) in vec2 v_position;\n"
"layout(location = 1) in vec4 v_color;\n"
"out vec4 f_color;\n"
"void main(void)\n"
"{\n"
" f_color = v_color;\n"
" gl_Position = projectionMatrix * vec4(v_position, 0.0f, 1.0f);\n"
"}\n";
const char* fs = \
"#version 330\n"
"in vec4 f_color;\n"
"out vec4 color;\n"
"void main(void)\n"
"{\n"
" color = f_color;\n"
"}\n";
m_programId = sCreateShaderProgram(vs, fs);
m_projectionUniform = glGetUniformLocation(m_programId, "projectionMatrix");
m_vertexAttribute = 0;
m_colorAttribute = 1;
// Generate
glGenVertexArrays(1, &m_vaoId);
glGenBuffers(2, m_vboIds);
glBindVertexArray(m_vaoId);
glEnableVertexAttribArray(m_vertexAttribute);
glEnableVertexAttribArray(m_colorAttribute);
// Vertex buffer
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[0]);
glVertexAttribPointer(m_vertexAttribute, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_vertices), m_vertices, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[1]);
glVertexAttribPointer(m_colorAttribute, 4, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET(0));
glBufferData(GL_ARRAY_BUFFER, sizeof(m_colors), m_colors, GL_DYNAMIC_DRAW);
sCheckGLError();
// Cleanup
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
m_count = 0;
}
void Destroy()
{
if (m_vaoId)
{
glDeleteVertexArrays(1, &m_vaoId);
glDeleteBuffers(2, m_vboIds);
m_vaoId = 0;
}
if (m_programId)
{
glDeleteProgram(m_programId);
m_programId = 0;
}
}
void Vertex(const b2Vec2& v, const b2Color& c)
{
if (m_count == e_maxVertices)
Flush();
m_vertices[m_count] = v;
m_colors[m_count] = c;
++m_count;
}
void Flush()
{
if (m_count == 0)
return;
glUseProgram(m_programId);
float32 proj[16] = { 0.0f };
g_camera.BuildProjectionMatrix(proj, 0.2f);
glUniformMatrix4fv(m_projectionUniform, 1, GL_FALSE, proj);
glBindVertexArray(m_vaoId);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[0]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(b2Vec2), m_vertices);
glBindBuffer(GL_ARRAY_BUFFER, m_vboIds[1]);
glBufferSubData(GL_ARRAY_BUFFER, 0, m_count * sizeof(b2Color), m_colors);
glEnable(GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDrawArrays(GL_TRIANGLES, 0, m_count);
glDisable(GL_BLEND);
sCheckGLError();
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glUseProgram(0);
m_count = 0;
}
enum { e_maxVertices = 3 * 512 };
b2Vec2 m_vertices[e_maxVertices];
b2Color m_colors[e_maxVertices];
int32 m_count;
GLuint m_vaoId;
GLuint m_vboIds[2];
GLuint m_programId;
GLint m_projectionUniform;
GLint m_vertexAttribute;
GLint m_colorAttribute;
};
//
DebugDraw::DebugDraw()
{
m_points = NULL;
m_lines = NULL;
m_triangles = NULL;
}
//
DebugDraw::~DebugDraw()
{
b2Assert(m_points == NULL);
b2Assert(m_lines == NULL);
b2Assert(m_triangles == NULL);
}
//
void DebugDraw::Create()
{
m_points = new GLRenderPoints;
m_points->Create();
m_lines = new GLRenderLines;
m_lines->Create();
m_triangles = new GLRenderTriangles;
m_triangles->Create();
}
//
void DebugDraw::Destroy()
{
m_points->Destroy();
delete m_points;
m_points = NULL;
m_lines->Destroy();
delete m_lines;
m_lines = NULL;
m_triangles->Destroy();
delete m_triangles;
m_triangles = NULL;
}
//
void DebugDraw::DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color)
{
b2Vec2 p1 = vertices[vertexCount - 1];
for (int32 i = 0; i < vertexCount; ++i)
{
b2Vec2 p2 = vertices[i];
m_lines->Vertex(p1, color);
m_lines->Vertex(p2, color);
p1 = p2;
}
}
//
void DebugDraw::DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color)
{
b2Color fillColor(0.5f * color.r, 0.5f * color.g, 0.5f * color.b, 0.5f);
for (int32 i = 1; i < vertexCount - 1; ++i)
{
m_triangles->Vertex(vertices[0], fillColor);
m_triangles->Vertex(vertices[i], fillColor);
m_triangles->Vertex(vertices[i+1], fillColor);
}
b2Vec2 p1 = vertices[vertexCount - 1];
for (int32 i = 0; i < vertexCount; ++i)
{
b2Vec2 p2 = vertices[i];
m_lines->Vertex(p1, color);
m_lines->Vertex(p2, color);
p1 = p2;
}
}
//
void DebugDraw::DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color)
{
const float32 k_segments = 16.0f;
const float32 k_increment = 2.0f * b2_pi / k_segments;
float32 sinInc = sinf(k_increment);
float32 cosInc = cosf(k_increment);
b2Vec2 r1(1.0f, 0.0f);
b2Vec2 v1 = center + radius * r1;
for (int32 i = 0; i < k_segments; ++i)
{
// Perform rotation to avoid additional trigonometry.
b2Vec2 r2;
r2.x = cosInc * r1.x - sinInc * r1.y;
r2.y = sinInc * r1.x + cosInc * r1.y;
b2Vec2 v2 = center + radius * r2;
m_lines->Vertex(v1, color);
m_lines->Vertex(v2, color);
r1 = r2;
v1 = v2;
}
}
//
void DebugDraw::DrawSolidCircle(const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color)
{
const float32 k_segments = 16.0f;
const float32 k_increment = 2.0f * b2_pi / k_segments;
float32 sinInc = sinf(k_increment);
float32 cosInc = cosf(k_increment);
b2Vec2 v0 = center;
b2Vec2 r1(cosInc, sinInc);
b2Vec2 v1 = center + radius * r1;
b2Color fillColor(0.5f * color.r, 0.5f * color.g, 0.5f * color.b, 0.5f);
for (int32 i = 0; i < k_segments; ++i)
{
// Perform rotation to avoid additional trigonometry.
b2Vec2 r2;
r2.x = cosInc * r1.x - sinInc * r1.y;
r2.y = sinInc * r1.x + cosInc * r1.y;
b2Vec2 v2 = center + radius * r2;
m_triangles->Vertex(v0, fillColor);
m_triangles->Vertex(v1, fillColor);
m_triangles->Vertex(v2, fillColor);
r1 = r2;
v1 = v2;
}
r1.Set(1.0f, 0.0f);
v1 = center + radius * r1;
for (int32 i = 0; i < k_segments; ++i)
{
b2Vec2 r2;
r2.x = cosInc * r1.x - sinInc * r1.y;
r2.y = sinInc * r1.x + cosInc * r1.y;
b2Vec2 v2 = center + radius * r2;
m_lines->Vertex(v1, color);
m_lines->Vertex(v2, color);
r1 = r2;
v1 = v2;
}
// Draw a line fixed in the circle to animate rotation.
b2Vec2 p = center + radius * axis;
m_lines->Vertex(center, color);
m_lines->Vertex(p, color);
}
//
void DebugDraw::DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color)
{
m_lines->Vertex(p1, color);
m_lines->Vertex(p2, color);
}
//
void DebugDraw::DrawTransform(const b2Transform& xf)
{
const float32 k_axisScale = 0.4f;
b2Color red(1.0f, 0.0f, 0.0f);
b2Color green(0.0f, 1.0f, 0.0f);
b2Vec2 p1 = xf.p, p2;
m_lines->Vertex(p1, red);
p2 = p1 + k_axisScale * xf.q.GetXAxis();
m_lines->Vertex(p2, red);
m_lines->Vertex(p1, green);
p2 = p1 + k_axisScale * xf.q.GetYAxis();
m_lines->Vertex(p2, green);
}
//
void DebugDraw::DrawPoint(const b2Vec2& p, float32 size, const b2Color& color)
{
m_points->Vertex(p, color, size);
}
//
void DebugDraw::DrawString(int x, int y, const char *string, ...)
{
va_list arg;
va_start(arg, string);
ImGui::Begin("Overlay", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoScrollbar);
ImGui::SetCursorPos(b2Vec2(float(x), float(y)));
ImGui::TextColoredV(ImColor(230, 153, 153, 255), string, arg);
ImGui::End();
va_end(arg);
}
//
void DebugDraw::DrawString(const b2Vec2& pw, const char *string, ...)
{
b2Vec2 ps = g_camera.ConvertWorldToScreen(pw);
va_list arg;
va_start(arg, string);
ImGui::Begin("Overlay", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoScrollbar);
ImGui::SetCursorPos(ps);
ImGui::TextColoredV(ImColor(230, 153, 153, 255), string, arg);
ImGui::End();
va_end(arg);
}
//
void DebugDraw::DrawAABB(b2AABB* aabb, const b2Color& c)
{
b2Vec2 p1 = aabb->lowerBound;
b2Vec2 p2 = b2Vec2(aabb->upperBound.x, aabb->lowerBound.y);
b2Vec2 p3 = aabb->upperBound;
b2Vec2 p4 = b2Vec2(aabb->lowerBound.x, aabb->upperBound.y);
m_lines->Vertex(p1, c);
m_lines->Vertex(p2, c);
m_lines->Vertex(p2, c);
m_lines->Vertex(p3, c);
m_lines->Vertex(p3, c);
m_lines->Vertex(p4, c);
m_lines->Vertex(p4, c);
m_lines->Vertex(p1, c);
}
//
void DebugDraw::Flush()
{
m_triangles->Flush();
m_lines->Flush();
m_points->Flush();
}
web/static/doc_controle/tp/Box2D/src/Testbed/Framework/DebugDraw.h deleted 100644 → 0
View file @ f27332b7
/*
* Copyright (c) 2006-2013 Erin Catto http://www.box2d.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.
*/
#ifndef DEBUGDRAW_H
#define DEBUGDRAW_H
#include "Box2D/Box2D.h"
struct b2AABB;
struct GLRenderPoints;
struct GLRenderLines;
struct GLRenderTriangles;
//
struct Camera
{
Camera()
{
m_center.Set(0.0f, 20.0f);
m_zoom = 1.0f;
m_width = 1280;
m_height = 800;
}
b2Vec2 ConvertScreenToWorld(const b2Vec2& screenPoint);
b2Vec2 ConvertWorldToScreen(const b2Vec2& worldPoint);
void BuildProjectionMatrix(float32* m, float32 zBias);
b2Vec2 m_center;
float32 m_zoom;
int32 m_width;
int32 m_height;
};
// This class implements debug drawing callbacks that are invoked
// inside b2World::Step.
class DebugDraw : public b2Draw
{
public:
DebugDraw();
~DebugDraw();
void Create();
void Destroy();
void DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) override;
void DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) override;
void DrawCircle(const b2Vec2& center, float32 radius, const b2Color& color) override;
void DrawSolidCircle(const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color& color) override;
void DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color) override;
void DrawTransform(const b2Transform& xf) override;
void DrawPoint(const b2Vec2& p, float32 size, const b2Color& color) override;
void DrawString(int x, int y, const char* string, ...);
void DrawString(const b2Vec2& p, const char* string, ...);
void DrawAABB(b2AABB* aabb, const b2Color& color);
void Flush();
private:
GLRenderPoints* m_points;
GLRenderLines* m_lines;
GLRenderTriangles* m_triangles;
};
extern DebugDraw g_debugDraw;
extern Camera g_camera;
#endif
web/static/doc_controle/tp/Box2D/src/Testbed/Framework/Main.cpp deleted 100644 → 0
View file @ f27332b7
/*
* Copyright (c) 2006-2016 Erin Catto http://www.box2d.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.
*/
#if defined(__APPLE__)
#include <OpenGL/gl3.h>
#else
#include <glew/glew.h>
#endif
#include "imgui/imgui.h"
#include "imgui/imgui_impl_glfw_gl3.h"
#include "DebugDraw.h"
#include "Test.h"
#include "glfw/glfw3.h"
#include <stdio.h>
#ifdef _MSC_VER
#define snprintf _snprintf
#endif
// This include was added to support MinGW
#ifdef _WIN32
#include <crtdbg.h>
#endif
//
struct UIState
{
bool showMenu;
};
//
namespace
{
GLFWwindow* mainWindow = NULL;
UIState ui;
int32 testIndex = 0;
int32 testSelection = 0;
int32 testCount = 0;
TestEntry* entry;
Test* test;
Settings settings;
bool rightMouseDown;
b2Vec2 lastp;
}
//
static void sCreateUI(GLFWwindow* window)
{
ui.showMenu = true;
// Init UI
const char* fontPath = "Data/DroidSans.ttf";
ImGui::GetIO().Fonts->AddFontFromFileTTF(fontPath, 15.f);
if (ImGui_ImplGlfwGL3_Init(window, false) == false)
{
fprintf(stderr, "Could not init GUI renderer.\n");
assert(false);
return;
}
ImGuiStyle& style = ImGui::GetStyle();
style.FrameRounding = style.GrabRounding = style.ScrollbarRounding = 2.0f;
style.FramePadding = ImVec2(4, 2);
style.DisplayWindowPadding = ImVec2(0, 0);
style.DisplaySafeAreaPadding = ImVec2(0, 0);
}
//
static void sResizeWindow(GLFWwindow*, int width, int height)
{
g_camera.m_width = width;
g_camera.m_height = height;
}
//
static void sKeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
ImGui_ImplGlfwGL3_KeyCallback(window, key, scancode, action, mods);
bool keys_for_ui = ImGui::GetIO().WantCaptureKeyboard;
if (keys_for_ui)
return;
if (action == GLFW_PRESS)
{
switch (key)
{
case GLFW_KEY_ESCAPE:
// Quit
glfwSetWindowShouldClose(mainWindow, GL_TRUE);
break;
case GLFW_KEY_LEFT:
// Pan left
if (mods == GLFW_MOD_CONTROL)
{
b2Vec2 newOrigin(2.0f, 0.0f);
test->ShiftOrigin(newOrigin);
}
else
{
g_camera.m_center.x -= 0.5f;
}
break;
case GLFW_KEY_RIGHT:
// Pan right
if (mods == GLFW_MOD_CONTROL)
{
b2Vec2 newOrigin(-2.0f, 0.0f);
test->ShiftOrigin(newOrigin);
}
else
{
g_camera.m_center.x += 0.5f;
}
break;
case GLFW_KEY_DOWN:
// Pan down
if (mods == GLFW_MOD_CONTROL)
{
b2Vec2 newOrigin(0.0f, 2.0f);
test->ShiftOrigin(newOrigin);
}
else
{
g_camera.m_center.y -= 0.5f;
}
break;
case GLFW_KEY_UP:
// Pan up
if (mods == GLFW_MOD_CONTROL)
{
b2Vec2 newOrigin(0.0f, -2.0f);
test->ShiftOrigin(newOrigin);
}
else
{
g_camera.m_center.y += 0.5f;
}
break;
case GLFW_KEY_HOME:
// Reset view
g_camera.m_zoom = 1.0f;
g_camera.m_center.Set(0.0f, 20.0f);
break;
case GLFW_KEY_Z:
// Zoom out
g_camera.m_zoom = b2Min(1.1f * g_camera.m_zoom, 20.0f);
break;
case GLFW_KEY_X:
// Zoom in
g_camera.m_zoom = b2Max(0.9f * g_camera.m_zoom, 0.02f);
break;
case GLFW_KEY_R:
// Reset test
delete test;
test = entry->createFcn();
break;
case GLFW_KEY_SPACE:
// Launch a bomb.
if (test)
{
test->LaunchBomb();
}
break;
case GLFW_KEY_O:
settings.singleStep = true;
break;
case GLFW_KEY_P:
settings.pause = !settings.pause;
break;
case GLFW_KEY_LEFT_BRACKET:
// Switch to previous test
--testSelection;
if (testSelection < 0)
{
testSelection = testCount - 1;
}
break;
case GLFW_KEY_RIGHT_BRACKET:
// Switch to next test
++testSelection;
if (testSelection == testCount)
{
testSelection = 0;
}
break;
case GLFW_KEY_TAB:
ui.showMenu = !ui.showMenu;
default:
if (test)
{
test->Keyboard(key);
}
}
}
else if (action == GLFW_RELEASE)
{
test->KeyboardUp(key);
}
// else GLFW_REPEAT
}
//
static void sCharCallback(GLFWwindow* window, unsigned int c)
{
ImGui_ImplGlfwGL3_CharCallback(window, c);
}
//
static void sMouseButton(GLFWwindow* window, int32 button, int32 action, int32 mods)
{
ImGui_ImplGlfwGL3_MouseButtonCallback(window, button, action, mods);
double xd, yd;
glfwGetCursorPos(mainWindow, &xd, &yd);
b2Vec2 ps((float32)xd, (float32)yd);
// Use the mouse to move things around.
if (button == GLFW_MOUSE_BUTTON_1)
{
//<##>
//ps.Set(0, 0);
b2Vec2 pw = g_camera.ConvertScreenToWorld(ps);
if (action == GLFW_PRESS)
{
if (mods == GLFW_MOD_SHIFT)
{
test->ShiftMouseDown(pw);
}
else
{
test->MouseDown(pw);
}
}
if (action == GLFW_RELEASE)
{
test->MouseUp(pw);
}
}
else if (button == GLFW_MOUSE_BUTTON_2)
{
if (action == GLFW_PRESS)
{
lastp = g_camera.ConvertScreenToWorld(ps);
rightMouseDown = true;
}
if (action == GLFW_RELEASE)
{
rightMouseDown = false;
}
}
}
//
static void sMouseMotion(GLFWwindow*, double xd, double yd)
{
b2Vec2 ps((float)xd, (float)yd);
b2Vec2 pw = g_camera.ConvertScreenToWorld(ps);
test->MouseMove(pw);
if (rightMouseDown)
{
b2Vec2 diff = pw - lastp;
g_camera.m_center.x -= diff.x;
g_camera.m_center.y -= diff.y;
lastp = g_camera.ConvertScreenToWorld(ps);
}
}
//
static void sScrollCallback(GLFWwindow* window, double dx, double dy)
{
ImGui_ImplGlfwGL3_ScrollCallback(window, dx, dy);
bool mouse_for_ui = ImGui::GetIO().WantCaptureMouse;
if (!mouse_for_ui)
{
if (dy > 0)
{
g_camera.m_zoom /= 1.1f;
}
else
{
g_camera.m_zoom *= 1.1f;
}
}
}
//
static void sRestart()
{
delete test;
entry = g_testEntries + testIndex;
test = entry->createFcn();
}
//
static void sSimulate()
{
glEnable(GL_DEPTH_TEST);
test->Step(&settings);
test->DrawTitle(entry->name);
glDisable(GL_DEPTH_TEST);
if (testSelection != testIndex)
{
testIndex = testSelection;
delete test;
entry = g_testEntries + testIndex;
test = entry->createFcn();
g_camera.m_zoom = 1.0f;
g_camera.m_center.Set(0.0f, 20.0f);
}
}
//
static bool sTestEntriesGetName(void*, int idx, const char** out_name)
{
*out_name = g_testEntries[idx].name;
return true;
}
//
static void sInterface()
{
int menuWidth = 200;
if (ui.showMenu)
{
ImGui::SetNextWindowPos(ImVec2((float)g_camera.m_width - menuWidth - 10, 10));
ImGui::SetNextWindowSize(ImVec2((float)menuWidth, (float)g_camera.m_height - 20));
ImGui::Begin("Testbed Controls", &ui.showMenu, ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoCollapse);
ImGui::PushAllowKeyboardFocus(false); // Disable TAB
ImGui::PushItemWidth(-1.0f);
ImGui::Text("Test");
if (ImGui::Combo("##Test", &testIndex, sTestEntriesGetName, NULL, testCount, testCount))
{
delete test;
entry = g_testEntries + testIndex;
test = entry->createFcn();
testSelection = testIndex;
}
ImGui::Separator();
ImGui::Text("Vel Iters");
ImGui::SliderInt("##Vel Iters", &settings.velocityIterations, 0, 50);
ImGui::Text("Pos Iters");
ImGui::SliderInt("##Pos Iters", &settings.positionIterations, 0, 50);
ImGui::Text("Hertz");
ImGui::SliderFloat("##Hertz", &settings.hz, 5.0f, 120.0f, "%.0f hz");
ImGui::PopItemWidth();
ImGui::Checkbox("Sleep", &settings.enableSleep);
ImGui::Checkbox("Warm Starting", &settings.enableWarmStarting);
ImGui::Checkbox("Time of Impact", &settings.enableContinuous);
ImGui::Checkbox("Sub-Stepping", &settings.enableSubStepping);
ImGui::Separator();
ImGui::Checkbox("Shapes", &settings.drawShapes);
ImGui::Checkbox("Joints", &settings.drawJoints);
ImGui::Checkbox("AABBs", &settings.drawAABBs);
ImGui::Checkbox("Contact Points", &settings.drawContactPoints);
ImGui::Checkbox("Contact Normals", &settings.drawContactNormals);
ImGui::Checkbox("Contact Impulses", &settings.drawContactImpulse);
ImGui::Checkbox("Friction Impulses", &settings.drawFrictionImpulse);
ImGui::Checkbox("Center of Masses", &settings.drawCOMs);
ImGui::Checkbox("Statistics", &settings.drawStats);
ImGui::Checkbox("Profile", &settings.drawProfile);
ImVec2 button_sz = ImVec2(-1, 0);
if (ImGui::Button("Pause (P)", button_sz))
settings.pause = !settings.pause;
if (ImGui::Button("Single Step (O)", button_sz))
settings.singleStep = !settings.singleStep;
if (ImGui::Button("Restart (R)", button_sz))
sRestart();
if (ImGui::Button("Quit", button_sz))
glfwSetWindowShouldClose(mainWindow, GL_TRUE);
ImGui::PopAllowKeyboardFocus();
ImGui::End();
}
//ImGui::ShowTestWindow(NULL);
}
//
void glfwErrorCallback(int error, const char *description)
{
fprintf(stderr, "GLFW error occured. Code: %d. Description: %s\n", error, description);
}
//
int main(int, char**)
{
#if defined(_WIN32)
// Enable memory-leak reports
_CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF | _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG));
#endif
glfwSetErrorCallback(glfwErrorCallback);
g_camera.m_width = 1024;
g_camera.m_height = 640;
if (glfwInit() == 0)
{
fprintf(stderr, "Failed to initialize GLFW\n");
return -1;
}
char title[64];
sprintf(title, "Box2D Testbed Version %d.%d.%d", b2_version.major, b2_version.minor, b2_version.revision);
#if defined(__APPLE__)
// Without these settings on macOS, OpenGL 2.1 will be used by default which will cause crashes at boot.
// This code is a slightly modified version of the code found here: http://www.glfw.org/faq.html#how-do-i-create-an-opengl-30-context
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#endif
mainWindow = glfwCreateWindow(g_camera.m_width, g_camera.m_height, title, NULL, NULL);
if (mainWindow == NULL)
{
fprintf(stderr, "Failed to open GLFW mainWindow.\n");
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(mainWindow);
printf("OpenGL %s, GLSL %s\n", glGetString(GL_VERSION), glGetString(GL_SHADING_LANGUAGE_VERSION));
glfwSetScrollCallback(mainWindow, sScrollCallback);
glfwSetWindowSizeCallback(mainWindow, sResizeWindow);
glfwSetKeyCallback(mainWindow, sKeyCallback);
glfwSetCharCallback(mainWindow, sCharCallback);
glfwSetMouseButtonCallback(mainWindow, sMouseButton);
glfwSetCursorPosCallback(mainWindow, sMouseMotion);
glfwSetScrollCallback(mainWindow, sScrollCallback);
#if defined(__APPLE__) == FALSE
//glewExperimental = GL_TRUE;
GLenum err = glewInit();
if (GLEW_OK != err)
{
fprintf(stderr, "Error: %s\n", glewGetErrorString(err));
exit(EXIT_FAILURE);
}
#endif
g_debugDraw.Create();
sCreateUI(mainWindow);
testCount = 0;
while (g_testEntries[testCount].createFcn != NULL)
{
++testCount;
}
testIndex = b2Clamp(testIndex, 0, testCount - 1);
testSelection = testIndex;
entry = g_testEntries + testIndex;
test = entry->createFcn();
// Control the frame rate. One draw per monitor refresh.
glfwSwapInterval(1);
double time1 = glfwGetTime();
double frameTime = 0.0;
glClearColor(0.3f, 0.3f, 0.3f, 1.f);
while (!glfwWindowShouldClose(mainWindow))
{
glfwGetWindowSize(mainWindow, &g_camera.m_width, &g_camera.m_height);
int bufferWidth, bufferHeight;
glfwGetFramebufferSize(mainWindow, &bufferWidth, &bufferHeight);
glViewport(0, 0, bufferWidth, bufferHeight);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
ImGui_ImplGlfwGL3_NewFrame();
ImGui::SetNextWindowPos(ImVec2(0,0));
ImGui::SetNextWindowSize(ImVec2((float)g_camera.m_width, (float)g_camera.m_height));
ImGui::Begin("Overlay", NULL, ImVec2(0,0), 0.0f, ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoInputs|ImGuiWindowFlags_AlwaysAutoResize|ImGuiWindowFlags_NoScrollbar);
ImGui::SetCursorPos(ImVec2(5, (float)g_camera.m_height - 20));
ImGui::Text("%.1f ms", 1000.0 * frameTime);
ImGui::End();
sSimulate();
sInterface();
// Measure speed
double time2 = glfwGetTime();
double alpha = 0.9f;
frameTime = alpha * frameTime + (1.0 - alpha) * (time2 - time1);
time1 = time2;
ImGui::Render();
glfwSwapBuffers(mainWindow);
glfwPollEvents();
}
if (test)
{
delete test;
test = NULL;
}
g_debugDraw.Destroy();
ImGui_ImplGlfwGL3_Shutdown();
glfwTerminate();
return 0;
}
web/static/doc_controle/tp/Box2D/src/Testbed/Framework/Test.cpp deleted 100644 → 0
View file @ f27332b7
/*
* Copyright (c) 2006-2009 Erin Catto http://www.box2d.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.
*/
#include "Test.h"
#include <stdio.h>
void DestructionListener::SayGoodbye(b2Joint* joint)
{
if (test->m_mouseJoint == joint)
{
test->m_mouseJoint = NULL;
}
else
{
test->JointDestroyed(joint);
}
}
Test::Test()
{
b2Vec2 gravity;
gravity.Set(0.0f, -10.0f);
m_world = new b2World(gravity);
m_bomb = NULL;
m_textLine = 30;
m_mouseJoint = NULL;
m_pointCount = 0;
m_destructionListener.test = this;
m_world->SetDestructionListener(&m_destructionListener);
m_world->SetContactListener(this);
m_world->SetDebugDraw(&g_debugDraw);
m_bombSpawning = false;
m_stepCount = 0;
b2BodyDef bodyDef;
m_groundBody = m_world->CreateBody(&bodyDef);
memset(&m_maxProfile, 0, sizeof(b2Profile));
memset(&m_totalProfile, 0, sizeof(b2Profile));
}
Test::~Test()
{
// By deleting the world, we delete the bomb, mouse joint, etc.
delete m_world;
m_world = NULL;
}
void Test::PreSolve(b2Contact* contact, const b2Manifold* oldManifold)
{
const b2Manifold* manifold = contact->GetManifold();
if (manifold->pointCount == 0)
{
return;
}
b2Fixture* fixtureA = contact->GetFixtureA();
b2Fixture* fixtureB = contact->GetFixtureB();
b2PointState state1[b2_maxManifoldPoints], state2[b2_maxManifoldPoints];
b2GetPointStates(state1, state2, oldManifold, manifold);
b2WorldManifold worldManifold;
contact->GetWorldManifold(&worldManifold);
for (int32 i = 0; i < manifold->pointCount && m_pointCount < k_maxContactPoints; ++i)
{
ContactPoint* cp = m_points + m_pointCount;
cp->fixtureA = fixtureA;
cp->fixtureB = fixtureB;
cp->position = worldManifold.points[i];
cp->normal = worldManifold.normal;
cp->state = state2[i];
cp->normalImpulse = manifold->points[i].normalImpulse;
cp->tangentImpulse = manifold->points[i].tangentImpulse;
cp->separation = worldManifold.separations[i];
++m_pointCount;
}
}
void Test::DrawTitle(const char *string)
{
g_debugDraw.DrawString(5, DRAW_STRING_NEW_LINE, string);
m_textLine = 3 * DRAW_STRING_NEW_LINE;
}
class QueryCallback : public b2QueryCallback
{
public:
QueryCallback(const b2Vec2& point)
{
m_point = point;
m_fixture = NULL;
}
bool ReportFixture(b2Fixture* fixture) override
{
b2Body* body = fixture->GetBody();
if (body->GetType() == b2_dynamicBody)
{
bool inside = fixture->TestPoint(m_point);
if (inside)
{
m_fixture = fixture;
// We are done, terminate the query.
return false;
}
}
// Continue the query.
return true;
}
b2Vec2 m_point;
b2Fixture* m_fixture;
};
void Test::MouseDown(const b2Vec2& p)
{
m_mouseWorld = p;
if (m_mouseJoint != NULL)
{
return;
}
// Make a small box.
b2AABB aabb;
b2Vec2 d;
d.Set(0.001f, 0.001f);
aabb.lowerBound = p - d;
aabb.upperBound = p + d;
// Query the world for overlapping shapes.
QueryCallback callback(p);
m_world->QueryAABB(&callback, aabb);
if (callback.m_fixture)
{
b2Body* body = callback.m_fixture->GetBody();
b2MouseJointDef md;
md.bodyA = m_groundBody;
md.bodyB = body;
md.target = p;
md.maxForce = 1000.0f * body->GetMass();
m_mouseJoint = (b2MouseJoint*)m_world->CreateJoint(&md);
body->SetAwake(true);
}
}
void Test::SpawnBomb(const b2Vec2& worldPt)
{
m_bombSpawnPoint = worldPt;
m_bombSpawning = true;
}
void Test::CompleteBombSpawn(const b2Vec2& p)
{
if (m_bombSpawning == false)
{
return;
}
const float multiplier = 30.0f;
b2Vec2 vel = m_bombSpawnPoint - p;
vel *= multiplier;
LaunchBomb(m_bombSpawnPoint,vel);
m_bombSpawning = false;
}
void Test::ShiftMouseDown(const b2Vec2& p)
{
m_mouseWorld = p;
if (m_mouseJoint != NULL)
{
return;
}
SpawnBomb(p);
}
void Test::MouseUp(const b2Vec2& p)
{
if (m_mouseJoint)
{
m_world->DestroyJoint(m_mouseJoint);
m_mouseJoint = NULL;
}
if (m_bombSpawning)
{
CompleteBombSpawn(p);
}
}
void Test::MouseMove(const b2Vec2& p)
{
m_mouseWorld = p;
if (m_mouseJoint)
{
m_mouseJoint->SetTarget(p);
}
}
void Test::LaunchBomb()
{
b2Vec2 p(RandomFloat(-15.0f, 15.0f), 30.0f);
b2Vec2 v = -5.0f * p;
LaunchBomb(p, v);
}
void Test::LaunchBomb(const b2Vec2& position, const b2Vec2& velocity)
{
if (m_bomb)
{
m_world->DestroyBody(m_bomb);
m_bomb = NULL;
}
b2BodyDef bd;
bd.type = b2_dynamicBody;
bd.position = position;
bd.bullet = true;
m_bomb = m_world->CreateBody(&bd);
m_bomb->SetLinearVelocity(velocity);
b2CircleShape circle;
circle.m_radius = 0.3f;
b2FixtureDef fd;
fd.shape = &circle;
fd.density = 20.0f;
fd.restitution = 0.0f;
b2Vec2 minV = position - b2Vec2(0.3f,0.3f);
b2Vec2 maxV = position + b2Vec2(0.3f,0.3f);
b2AABB aabb;
aabb.lowerBound = minV;
aabb.upperBound = maxV;
m_bomb->CreateFixture(&fd);
}
void Test::Step(Settings* settings)
{
float32 timeStep = settings->hz > 0.0f ? 1.0f / settings->hz : float32(0.0f);
if (settings->pause)
{
if (settings->singleStep)
{
settings->singleStep = 0;
}
else
{
timeStep = 0.0f;
}
g_debugDraw.DrawString(5, m_textLine, "****PAUSED****");
m_textLine += DRAW_STRING_NEW_LINE;
}
uint32 flags = 0;
flags += settings->drawShapes * b2Draw::e_shapeBit;
flags += settings->drawJoints * b2Draw::e_jointBit;
flags += settings->drawAABBs * b2Draw::e_aabbBit;
flags += settings->drawCOMs * b2Draw::e_centerOfMassBit;
g_debugDraw.SetFlags(flags);
m_world->SetAllowSleeping(settings->enableSleep);
m_world->SetWarmStarting(settings->enableWarmStarting);
m_world->SetContinuousPhysics(settings->enableContinuous);
m_world->SetSubStepping(settings->enableSubStepping);
m_pointCount = 0;
m_world->Step(timeStep, settings->velocityIterations, settings->positionIterations);
m_world->DrawDebugData();
g_debugDraw.Flush();
if (timeStep > 0.0f)
{
++m_stepCount;
}
if (settings->drawStats)
{
int32 bodyCount = m_world->GetBodyCount();
int32 contactCount = m_world->GetContactCount();
int32 jointCount = m_world->GetJointCount();
g_debugDraw.DrawString(5, m_textLine, "bodies/contacts/joints = %d/%d/%d", bodyCount, contactCount, jointCount);
m_textLine += DRAW_STRING_NEW_LINE;
int32 proxyCount = m_world->GetProxyCount();
int32 height = m_world->GetTreeHeight();
int32 balance = m_world->GetTreeBalance();
float32 quality = m_world->GetTreeQuality();
g_debugDraw.DrawString(5, m_textLine, "proxies/height/balance/quality = %d/%d/%d/%g", proxyCount, height, balance, quality);
m_textLine += DRAW_STRING_NEW_LINE;
}
// Track maximum profile times
{
const b2Profile& p = m_world->GetProfile();
m_maxProfile.step = b2Max(m_maxProfile.step, p.step);
m_maxProfile.collide = b2Max(m_maxProfile.collide, p.collide);
m_maxProfile.solve = b2Max(m_maxProfile.solve, p.solve);
m_maxProfile.solveInit = b2Max(m_maxProfile.solveInit, p.solveInit);
m_maxProfile.solveVelocity = b2Max(m_maxProfile.solveVelocity, p.solveVelocity);
m_maxProfile.solvePosition = b2Max(m_maxProfile.solvePosition, p.solvePosition);
m_maxProfile.solveTOI = b2Max(m_maxProfile.solveTOI, p.solveTOI);
m_maxProfile.broadphase = b2Max(m_maxProfile.broadphase, p.broadphase);
m_totalProfile.step += p.step;
m_totalProfile.collide += p.collide;
m_totalProfile.solve += p.solve;
m_totalProfile.solveInit += p.solveInit;
m_totalProfile.solveVelocity += p.solveVelocity;
m_totalProfile.solvePosition += p.solvePosition;
m_totalProfile.solveTOI += p.solveTOI;
m_totalProfile.broadphase += p.broadphase;
}
if (settings->drawProfile)
{
const b2Profile& p = m_world->GetProfile();
b2Profile aveProfile;
memset(&aveProfile, 0, sizeof(b2Profile));
if (m_stepCount > 0)
{
float32 scale = 1.0f / m_stepCount;
aveProfile.step = scale * m_totalProfile.step;
aveProfile.collide = scale * m_totalProfile.collide;
aveProfile.solve = scale * m_totalProfile.solve;
aveProfile.solveInit = scale * m_totalProfile.solveInit;
aveProfile.solveVelocity = scale * m_totalProfile.solveVelocity;
aveProfile.solvePosition = scale * m_totalProfile.solvePosition;
aveProfile.solveTOI = scale * m_totalProfile.solveTOI;
aveProfile.broadphase = scale * m_totalProfile.broadphase;
}
g_debugDraw.DrawString(5, m_textLine, "step [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.step, aveProfile.step, m_maxProfile.step);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "collide [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.collide, aveProfile.collide, m_maxProfile.collide);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "solve [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.solve, aveProfile.solve, m_maxProfile.solve);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "solve init [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.solveInit, aveProfile.solveInit, m_maxProfile.solveInit);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "solve velocity [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.solveVelocity, aveProfile.solveVelocity, m_maxProfile.solveVelocity);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "solve position [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.solvePosition, aveProfile.solvePosition, m_maxProfile.solvePosition);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "solveTOI [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.solveTOI, aveProfile.solveTOI, m_maxProfile.solveTOI);
m_textLine += DRAW_STRING_NEW_LINE;
g_debugDraw.DrawString(5, m_textLine, "broad-phase [ave] (max) = %5.2f [%6.2f] (%6.2f)", p.broadphase, aveProfile.broadphase, m_maxProfile.broadphase);
m_textLine += DRAW_STRING_NEW_LINE;
}
if (m_mouseJoint)
{
b2Vec2 p1 = m_mouseJoint->GetAnchorB();
b2Vec2 p2 = m_mouseJoint->GetTarget();
b2Color c;
c.Set(0.0f, 1.0f, 0.0f);
g_debugDraw.DrawPoint(p1, 4.0f, c);
g_debugDraw.DrawPoint(p2, 4.0f, c);
c.Set(0.8f, 0.8f, 0.8f);
g_debugDraw.DrawSegment(p1, p2, c);
}
if (m_bombSpawning)
{
b2Color c;
c.Set(0.0f, 0.0f, 1.0f);
g_debugDraw.DrawPoint(m_bombSpawnPoint, 4.0f, c);
c.Set(0.8f, 0.8f, 0.8f);
g_debugDraw.DrawSegment(m_mouseWorld, m_bombSpawnPoint, c);
}
if (settings->drawContactPoints)
{
const float32 k_impulseScale = 0.1f;
const float32 k_axisScale = 0.3f;
for (int32 i = 0; i < m_pointCount; ++i)
{
ContactPoint* point = m_points + i;
if (point->state == b2_addState)
{
// Add
g_debugDraw.DrawPoint(point->position, 10.0f, b2Color(0.3f, 0.95f, 0.3f));
}
else if (point->state == b2_persistState)
{
// Persist
g_debugDraw.DrawPoint(point->position, 5.0f, b2Color(0.3f, 0.3f, 0.95f));
}
if (settings->drawContactNormals == 1)
{
b2Vec2 p1 = point->position;
b2Vec2 p2 = p1 + k_axisScale * point->normal;
g_debugDraw.DrawSegment(p1, p2, b2Color(0.9f, 0.9f, 0.9f));
}
else if (settings->drawContactImpulse == 1)
{
b2Vec2 p1 = point->position;
b2Vec2 p2 = p1 + k_impulseScale * point->normalImpulse * point->normal;
g_debugDraw.DrawSegment(p1, p2, b2Color(0.9f, 0.9f, 0.3f));
}
if (settings->drawFrictionImpulse == 1)
{
b2Vec2 tangent = b2Cross(point->normal, 1.0f);
b2Vec2 p1 = point->position;
b2Vec2 p2 = p1 + k_impulseScale * point->tangentImpulse * tangent;
g_debugDraw.DrawSegment(p1, p2, b2Color(0.9f, 0.9f, 0.3f));
}
}
}
}
void Test::ShiftOrigin(const b2Vec2& newOrigin)
{
m_world->ShiftOrigin(newOrigin);
}