/* ThingDirCanvas::draw
* Draws the control
*******************************************************************/
void ThingDirCanvas::draw()
{
// Setup the viewport
glViewport(0, 0, GetSize().x, GetSize().y);
// Setup the screen projection
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.2, 1.2, 1.2, -1.2, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Clear
glClearColor(col_bg.fr(), col_bg.fg(), col_bg.fb(), 1.0f);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
// Draw angle ring
glLineWidth(1.5f);
glEnable(GL_LINE_SMOOTH);
rgba_t col_faded(col_bg.r * 0.6 + col_fg.r * 0.4,
col_bg.g * 0.6 + col_fg.g * 0.4,
col_bg.b * 0.6 + col_fg.b * 0.4);
Drawing::drawEllipse(fpoint2_t(0, 0), 1, 1, 48, col_faded);
// Draw dir points
for (unsigned a = 0; a < dir_points.size(); a++)
{
Drawing::drawFilledEllipse(dir_points[a], 0.12, 0.12, 8, col_bg);
Drawing::drawEllipse(dir_points[a], 0.12, 0.12, 16, col_fg);
}
// Draw angle arrow
glLineWidth(2.0f);
fpoint2_t tip = MathStuff::rotatePoint(fpoint2_t(0, 0), fpoint2_t(0.8, 0), -angle);
Drawing::drawArrow(tip, fpoint2_t(0, 0), col_fg, false, 1.2, 0.2);
// Draw hover point
glPointSize(8.0f);
glEnable(GL_POINT_SMOOTH);
if (point_hl >= 0 && point_hl < (int)dir_points.size())
{
OpenGL::setColour(col_faded);
glBegin(GL_POINTS);
glVertex2d(dir_points[point_hl].x, dir_points[point_hl].y);
glEnd();
}
// Draw selected point
if (point_sel >= 0 && point_sel < (int)dir_points.size())
{
OpenGL::setColour(col_fg);
glBegin(GL_POINTS);
glVertex2d(dir_points[point_sel].x, dir_points[point_sel].y);
glEnd();
}
// Swap buffers (ie show what was drawn)
SwapBuffers();
}
/* Drawing::textExtents
* Returns the width and height of [text] when drawn with [font]
*******************************************************************/
fpoint2_t Drawing::textExtents(string text, int font)
{
// Get desired font
FTFont* ftgl_font = theFontManager->getFont(font);
// If FTGL font is invalid, return empty
if (!ftgl_font)
return fpoint2_t(0,0);
// Return width and height of text
FTBBox bbox = ftgl_font->BBox(CHR(text), -1);
return fpoint2_t(bbox.Upper().X() - bbox.Lower().X(), ftgl_font->LineHeight());
}
/* ThingDirCanvas::ThingDirCanvas
* ThingDirCanvas class constructor
*******************************************************************/
ThingDirCanvas::ThingDirCanvas(wxWindow* parent) : OGLCanvas(parent, -1, true, 15)
{
// Init variables
angle = 0;
point_hl = -1;
last_check = 0;
point_sel = -1;
// Get system panel background colour
wxColour bgcolwx = Drawing::getPanelBGColour();
col_bg.set(bgcolwx.Red(), bgcolwx.Green(), bgcolwx.Blue());
// Get system text colour
wxColour textcol = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
col_fg.set(textcol.Red(), textcol.Green(), textcol.Blue());
// Setup dir points
double rot = 0;
for (int a = 0; a < 8; a++)
{
dir_points.push_back(fpoint2_t(sin(rot), 0 - cos(rot)));
rot -= (3.1415926535897932384626433832795 * 2) / 8.0;
}
// Bind Events
Bind(wxEVT_MOTION, &ThingDirCanvas::onMouseEvent, this);
Bind(wxEVT_LEAVE_WINDOW, &ThingDirCanvas::onMouseEvent, this);
Bind(wxEVT_LEFT_DOWN, &ThingDirCanvas::onMouseEvent, this);
// Fixed size
SetInitialSize(wxSize(128, 128));
SetMaxSize(wxSize(128, 128));
}
void Polygon2D::updateTextureCoords(double scale_x, double scale_y, double offset_x, double offset_y, double rotation)
{
// Can't do this if there is no texture
if (!texture)
return;
// Check dimensions and scale
double width = texture->getWidth();
double height = texture->getHeight();
if (scale_x == 0) scale_x = 1;
if (scale_y == 0) scale_y = 1;
if (width == 0) width = 1;
if (height == 0) height = 1;
// Get texture info
double owidth = 1.0 / scale_x / width;
double oheight = 1.0 / scale_y / height;
// Set texture coordinates
double x, y;
for (unsigned p = 0; p < subpolys.size(); p++)
{
for (unsigned a = 0; a < subpolys[p]->n_vertices; a++)
{
x = subpolys[p]->vertices[a].x;
y = subpolys[p]->vertices[a].y;
// Apply rotation if any
if (rotation != 0) {
fpoint2_t np = MathStuff::rotatePoint(fpoint2_t(0, 0), fpoint2_t(x, y), rotation);
x = np.x;
y = np.y;
}
x = (scale_x*offset_x) + x;
y = (scale_y*offset_y) - y;
// Set texture coordinate for vertex
subpolys[p]->vertices[a].tx = x * owidth;
subpolys[p]->vertices[a].ty = y * oheight;
}
}
// Update variables
vbo_update = 1;
}
int PolygonSplitter::findNextEdge(int edge, bool ignore_done, bool only_convex, bool ignore_inpoly)
{
edge_t& e = edges[edge];
vertex_t& v2 = vertices[e.v2];
vertex_t& v1 = vertices[e.v1];
// Go through all edges starting from the end of this one
double min_angle = 2*PI;
int next = -1;
for (unsigned a = 0; a < v2.edges_out.size(); a++)
{
edge_t& out = edges[v2.edges_out[a]];
// Ignore 'done' edges
if (ignore_done && edges[v2.edges_out[a]].done)
continue;
// Ignore 'inpoly' edges
if (ignore_inpoly && edges[v2.edges_out[a]].inpoly)
continue;
// Ignore edges on the reverse-side of this
if (out.v1 == e.v2 && out.v2 == e.v1)
continue;
// Ignore invalid edges
if (!out.ok)
continue;
// Determine angle between edges
double angle = MathStuff::angle2DRad(fpoint2_t(v1.x, v1.y), fpoint2_t(v2.x, v2.y), fpoint2_t(vertices[out.v2].x, vertices[out.v2].y));
if (angle < min_angle)
{
min_angle = angle;
next = v2.edges_out[a];
}
}
last_angle = min_angle;
if (only_convex && min_angle > PI)
return -1;
else
return next;
}
/* MathStuff::rotatePoint
* Rotates [point] around [origin] by [angle] and returns the newly
* rotated point
*******************************************************************/
fpoint2_t MathStuff::rotatePoint(fpoint2_t origin, fpoint2_t point, double angle)
{
// Translate to origin
double x = point.x - origin.x;
double y = point.y - origin.y;
// Maths yay
double srot = sin(angle * deg2rad);
double crot = cos(angle * deg2rad);
double nx = crot * x - srot * y;
double ny = srot * x + crot * y;
// Return rotated point
return fpoint2_t(nx + origin.x, ny + origin.y);
}
fpoint2_t MathStuff::rotatePoint(fpoint2_t origin, fpoint2_t point, double angle)
{
// Translate to origin
double x = point.x - origin.x;
double y = point.y - origin.y;
// Maths yay
double rot = (PI * 2.0) * ((360.0 - angle) / 360.0);
double srot = sin(rot);
double crot = cos(rot);
x = crot * x - srot * y;
y = srot * x + crot * y;
// Return rotated point
return fpoint2_t(x + origin.x, y + origin.y);
}
/* MapLine::dirTabPoint
* Calculates and returns the end point of the 'direction tab' for
* the line (used as a front side indicator for 2d map display)
*******************************************************************/
fpoint2_t MapLine::dirTabPoint(double tablen)
{
// Calculate midpoint
fpoint2_t mid(x1() + ((x2() - x1()) * 0.5), y1() + ((y2() - y1()) * 0.5));
// Calculate tab length
if (tablen == 0)
{
tablen = getLength() * 0.1;
if (tablen > 16) tablen = 16;
if (tablen < 2) tablen = 2;
}
// Calculate tab endpoint
if (front_vec.x == 0 && front_vec.y == 0) frontVector();
return fpoint2_t(mid.x - front_vec.x*tablen, mid.y - front_vec.y*tablen);
}
/* MCAVertexSelection::MCAVertexSelection
* MCAVertexSelection class constructor
*******************************************************************/
MCAVertexSelection::MCAVertexSelection(long start, vector<MapVertex*>& verts, double size, bool select) : MCAnimation(start)
{
// Init variables
this->size = size;
this->select = select;
this->fade = 1.0f;
// Setup vertices list
for (unsigned a = 0; a < verts.size(); a++)
{
if (!verts[a]) continue;
vertices.push_back(fpoint2_t(verts[a]->xPos(), verts[a]->yPos()));
}
if (!select)
this->size = size * 1.8f;
}
/* Drawing::textExtents
* Returns the width and height of [text] when drawn with [font]
*******************************************************************/
fpoint2_t Drawing::textExtents(string text, int font)
{
// Setup SFML string
sf::Text sf_str;
sf_str.setString(CHR(text));
// Set font
sf::Font* f = theFontManager->getFont(font);
sf_str.setFont(*f);
if (font == FONT_SMALL)
sf_str.setCharacterSize((gl_font_size * 0.6) + 1);
else
sf_str.setCharacterSize(gl_font_size);
// Return width and height of text
sf::FloatRect rect = sf_str.getGlobalBounds();
return fpoint2_t(rect.width, rect.height);
}
fpoint2_t MathStuff::closestPointOnLine(double x, double y, double x1, double y1, double x2, double y2)
{
// Get line length
double len = sqrt((x2-x1)*(x2-x1) + (y2-y1)*(y2-y1));
// Calculate intersection distance
double u = 0;
if (len > 0)
{
u = ((x-x1)*(x2-x1) + (y-y1)*(y2-y1)) / (len*len);
// Limit intersection distance to the line
double lbound = 1 / len;
if(u < lbound) u = lbound;
if(u > (1.0-lbound)) u = 1.0-lbound;
}
// Return intersection point
return fpoint2_t(x1 + u*(x2 - x1), y1 + u*(y2 - y1));
}
/* MathStuff::closestPointOnLine
* Returns the point on the given line that's closest to the given
* point
*******************************************************************/
fpoint2_t MathStuff::closestPointOnLine(fpoint2_t point, fseg2_t line)
{
// Get line length
double len = line.length();
// Calculate intersection distance
double u = 0;
if (len > 0)
{
u = ((point.x - line.x1()) * line.width() + (point.y-line.y1()) * line.height()) / (len * len);
// Limit intersection distance to the line
double lbound = 1 / len;
if(u < lbound) u = lbound;
if(u > (1.0-lbound)) u = 1.0-lbound;
}
// Return intersection point
return fpoint2_t(line.x1() + u*line.width(), line.y1() + u*line.height());
}
fpoint2_t MathStuff::vectorAngle(double angle_rad)
{
return fpoint2_t(cos(-angle_rad), -sin(-angle_rad));
}
/* MapThing::getPoint
* Returns the object point [point]. Currently for things this is
* always the thing position
*******************************************************************/
fpoint2_t MapThing::getPoint(uint8_t point)
{
return fpoint2_t(x, y);
}