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hexmap.impl.cpp
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hexmap.impl.cpp
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#include <ctime>
#include <cmath>
#include <cairomm/context.h>
#include <glibmm/main.h>
#define HEXRADIUS 30
HexMap::HexMap(Model& model_in)
: m_radius(100), m_line_width(3), highlighted(-1)
{
model = &(model_in); // Point the hexmap to the model
Glib::signal_timeout().connect( sigc::mem_fun(*this, &HexMap::on_timeout), 100 );
}
HexMap::~HexMap()
{
}
void draw_hexagon(const Cairo::RefPtr<Cairo::Context>& cr, float hex_center_x, float hex_center_y){
const float hex_radius=HEXRADIUS;
const float sin60 = 0.8660254;
cr->set_line_width(1);
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0); // black
cr->move_to(hex_center_x + 0.0f, hex_center_y + hex_radius); // Start at top (bottom?)
cr->rel_line_to(hex_radius*sin60, -hex_radius*0.5f);
cr->rel_line_to(0.0f,-hex_radius);
cr->rel_line_to(-hex_radius*sin60, -hex_radius*0.5f);
cr->rel_line_to(-hex_radius*sin60, hex_radius*0.5f);
cr->rel_line_to(0.0f,hex_radius);
cr->rel_line_to(hex_radius*sin60, hex_radius*0.5f);
// cr->stroke_preserve();
}
void draw_hexline(const Cairo::RefPtr<Cairo::Context>& cr, float hex_center_x, float hex_center_y, Direction direction){
const float hex_radius=HEXRADIUS-1;
const float sin60 = 0.8660254;
const int linewidth = 2;
cr->set_line_width(linewidth);
cr->set_source_rgba(0.5, 0.1, 0.6, 0.4); // purple
cr->move_to(hex_center_x + 0.0f, hex_center_y + hex_radius); // Start at top (bottom?)
if (direction==SE) cr->rel_line_to(hex_radius*sin60, -hex_radius*0.5f);
else cr->rel_move_to(hex_radius*sin60, -hex_radius*0.5f);
if (direction==E) cr->rel_line_to(0.0f,-hex_radius);
else cr->rel_move_to(0.0f,-hex_radius);
if (direction==NE) cr->rel_line_to(-hex_radius*sin60, -hex_radius*0.5f);
else cr->rel_move_to(-hex_radius*sin60, -hex_radius*0.5f);
if (direction==NW) cr->rel_line_to(-hex_radius*sin60, hex_radius*0.5f);
else cr->rel_move_to(-hex_radius*sin60, hex_radius*0.5f);
if (direction==W) cr->rel_line_to(0.0f,hex_radius);
else cr->rel_move_to(0.0f,hex_radius);
if (direction==SW) cr->rel_line_to(hex_radius*sin60, hex_radius*0.5f);
else cr->rel_move_to(hex_radius*sin60, hex_radius*0.5f);
cr->stroke();
}
void draw_one_mtn(const Cairo::RefPtr<Cairo::Context>& cr, float start_x, float start_y, float height){
cr->set_source_rgba(103.0f/256, 95.0f/256, 82.0f/256, 1.0); // Brown
cr->move_to(start_x, start_y); // Start at lower left
cr->rel_line_to(height/2, -height);
cr->rel_line_to(height/2, height);
cr->stroke_preserve();
cr->set_source_rgba(206.0f/256, 191.0f/256, 164.0f/256, 1.0);
cr->fill();
}
void draw_mountains(const Cairo::RefPtr<Cairo::Context>& cr, float hex_center_x, float hex_center_y, Model& model, int itile){
const float hex_radius=HEXRADIUS;
cr->set_line_width(3);
// Border linking mountains
int neighbor_tile = model.nature.neighbor(itile,NW);
int neighbor_tile2 = model.nature.neighbor(itile,NE);
// N mountain
if (neighbor_tile>=0 && neighbor_tile2>=0)
if (model.nature.map[neighbor_tile].terrain==MOUNTAIN && model.nature.map[neighbor_tile2].terrain==MOUNTAIN)
draw_one_mtn(cr,hex_center_x - hex_radius*0.35, hex_center_y - hex_radius*0.4, hex_radius*0.8f);
// NW mountain
if (neighbor_tile>=0)
if (model.nature.map[neighbor_tile].terrain==MOUNTAIN)
draw_one_mtn(cr,hex_center_x - hex_radius*0.85, hex_center_y - hex_radius*0.2, hex_radius*0.8f);
// NE mountain
if (neighbor_tile2>=0)
if (model.nature.map[neighbor_tile2].terrain==MOUNTAIN){
draw_one_mtn(cr,hex_center_x + hex_radius*0.3, hex_center_y - hex_radius*0.5, hex_radius*0.8f);
draw_one_mtn(cr,hex_center_x + hex_radius*0.05, hex_center_y - hex_radius*0.2, hex_radius*0.8f);
}
// W mountain
neighbor_tile = model.nature.neighbor(itile,W);
if (neighbor_tile>=0)
if (model.nature.map[neighbor_tile].terrain==MOUNTAIN)
draw_one_mtn(cr,hex_center_x - hex_radius*1.00, hex_center_y + hex_radius*0.35, hex_radius*0.8f);
// 3 mountains, from back to front
draw_one_mtn(cr,hex_center_x - hex_radius*0.4, hex_center_y + hex_radius*0.3, hex_radius*0.8f);
draw_one_mtn(cr,hex_center_x - hex_radius*0.1, hex_center_y + hex_radius*0.4, hex_radius*0.8f);
draw_one_mtn(cr,hex_center_x - hex_radius*0.7, hex_center_y + hex_radius*0.5, hex_radius*0.8f);
}
void draw_waves(const Cairo::RefPtr<Cairo::Context>& cr, float hex_center_x, float hex_center_y){
const float hex_radius=HEXRADIUS;
cr->set_line_width(3);
cr->set_source_rgba(88.0f/256, 110.0f/256, 119.0f/256, 0.3); // Blue
cr->move_to(hex_center_x - hex_radius*0.5, hex_center_y + hex_radius*0.5); // Start at lower left
cr->rel_curve_to(0.25*hex_radius, -0.15*hex_radius, 0.25*hex_radius, 0.1*hex_radius, 0.5*hex_radius, -0.05*hex_radius);
cr->move_to(hex_center_x + hex_radius*0.1, hex_center_y - hex_radius*0.25); // Start at upper right
cr->rel_curve_to(0.25*hex_radius, -0.15*hex_radius, 0.25*hex_radius, 0.1*hex_radius, 0.5*hex_radius, -0.05*hex_radius);
cr->stroke();
}
void draw_hexmap(const Cairo::RefPtr<Cairo::Context>& cr, Model& model, int highlighted){
const float hex_radius=HEXRADIUS;
const float sin60 = 0.8660254;
const float hex_width = hex_radius*sin60*2;
// Determine # ppl/tile
vector<int> tilepop(model.nature.map.size(),0);
for (int i=0;i<model.p.person.size();i++){
//if (group_focus==-1){
tilepop[model.p.person[i].home]+=1;
//} else { // Count only members of group_focus
// if (p.person[i].is_member(group_focus)) tilepop[p.person[i].home]+=1;
//}
}
Cairo::TextExtents extents; // for centering text
for (int j = 0; j < model.nature.nrow; j++){
float offset = (j%2==0 ? 0 : hex_width/2);
for (int i = 0; i < model.nature.ncol; i++){
int itile = j*model.nature.ncol + i;
float tile_center_x = 50.0f + hex_width*i + offset;
float tile_center_y = 50.0f + 1.5*hex_radius*j;
draw_hexagon(cr, tile_center_x, tile_center_y);
// Fill with correct background color
if(model.nature.map[itile].terrain==GRASS) cr->set_source_rgba(167.0f/256, 206.0f/256, 164.0f/256, 1.0); // Green
if(model.nature.map[itile].terrain==WATER) cr->set_source_rgba(177.0f/256, 219.0f/256, 238.0f/256, 1.0); // Blue
if(model.nature.map[itile].terrain==MOUNTAIN) cr->set_source_rgba(167.0f/256, 206.0f/256, 164.0f/256, 1.0); // Green
//if(model.nature.map[itile].terrain==MOUNTAIN) cr->set_source_rgba(206.0f/256, 191.0f/256, 164.0f/256, 1.0); // Brown
cr->fill();
// Draw mountains or waves
if(model.nature.map[itile].terrain==MOUNTAIN) draw_mountains(cr,tile_center_x, tile_center_y, model, itile);
if(model.nature.map[itile].terrain==WATER) draw_waves(cr,tile_center_x, tile_center_y);
// Write population
if(model.nature.map[itile].terrain==GRASS && tilepop[itile]>0){
//cr->select_font_face("Purisa", Cairo::FONT_SLANT_NORMAL, Cairo::FONT_WEIGHT_BOLD);
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0);
cr->set_font_size(13);
string pop_str = std::to_string(tilepop[itile]);
cr->get_text_extents(pop_str, extents);
cr->move_to(tile_center_x - extents.width/2, tile_center_y+hex_radius*0.6f);
cr->show_text(pop_str.c_str());
}
/*
// Draw population
for (int i_pop = 0; i_pop < tilepop[itile]; i_pop++){
// Choose a random point inside hexagon (the square part for now)
float rand_x = (rand_f1()-0.5f)*hex_radius;
float rand_y = (rand_f1()-0.5f)*hex_radius;
cr->set_line_width(5);
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0); // black
// cr->move_to(tile_center_x + rand_x, tile_center_y + rand_y); // Start at top (bottom?)
// cr->rel_line_to(hex_radius*0.01, 0);
cr->arc(tile_center_x+rand_x, tile_center_y+rand_y, 1.0, 0, 2 * M_PI);
cr->fill();
}*/
}
}
for (int j = 0; j < model.nature.nrow; j++){
float offset = (j%2==0 ? 0 : hex_width/2);
for (int i = 0; i < model.nature.ncol; i++){
int itile = j*model.nature.ncol + i;
float tile_center_x = 50.0f + hex_width*i + offset;
float tile_center_y = 50.0f + 1.5*hex_radius*j;
// Add borders
int gid = model.nature.map[itile].owner;
if (gid>=0){
bool ul = true;
int neighbor_tile = model.nature.neighbor(itile,W);
if (neighbor_tile>=0){
if (model.nature.map[neighbor_tile].owner!=gid) {if(model.nature.map[neighbor_tile].terrain==GRASS) draw_hexline(cr,tile_center_x, tile_center_y,W);}
else ul = false;
} else draw_hexline(cr,tile_center_x, tile_center_y,W);
neighbor_tile = model.nature.neighbor(itile,NW);
if (neighbor_tile>=0){
if (model.nature.map[neighbor_tile].owner!=gid) {if(model.nature.map[neighbor_tile].terrain==GRASS) draw_hexline(cr,tile_center_x, tile_center_y,NW);}
else ul = false;
} else draw_hexline(cr,tile_center_x, tile_center_y,NW);
neighbor_tile = model.nature.neighbor(itile,NE);
if (neighbor_tile>=0){
if (model.nature.map[neighbor_tile].owner!=gid) {if(model.nature.map[neighbor_tile].terrain==GRASS) draw_hexline(cr,tile_center_x, tile_center_y,NE);}
else ul = false;
} else draw_hexline(cr,tile_center_x, tile_center_y,NE);
neighbor_tile = model.nature.neighbor(itile,E);
if (neighbor_tile>=0){
if (model.nature.map[neighbor_tile].owner!=gid) {if(model.nature.map[neighbor_tile].terrain==GRASS) draw_hexline(cr,tile_center_x, tile_center_y,E);}
} else draw_hexline(cr,tile_center_x, tile_center_y,E);
neighbor_tile = model.nature.neighbor(itile,SE);
if (neighbor_tile>=0){
if (model.nature.map[neighbor_tile].owner!=gid) {if(model.nature.map[neighbor_tile].terrain==GRASS) draw_hexline(cr,tile_center_x, tile_center_y,SE);}
} else draw_hexline(cr,tile_center_x, tile_center_y,SE);
neighbor_tile = model.nature.neighbor(itile,SW);
if (neighbor_tile>=0){
if (model.nature.map[neighbor_tile].owner!=gid) {if(model.nature.map[neighbor_tile].terrain==GRASS) draw_hexline(cr,tile_center_x, tile_center_y,SW);}
} else draw_hexline(cr,tile_center_x, tile_center_y,SW);
if (ul){ // Quick way to clean up names - only put name in upper left corner tile
cr->set_source_rgba(0.0, 0.0, 0.0, 1.0);
cr->set_font_size(13);
string group_name = gnames[model.p.groups[gid].name];
cr->get_text_extents(group_name, extents);
cr->move_to(tile_center_x - extents.width/2, tile_center_y+hex_radius*0.0f);
cr->show_text(group_name.c_str());
}
}
}
}
if(highlighted>=0){
int i = highlighted%model.nature.ncol;
int j = highlighted/model.nature.ncol;
float offset = (j%2==0 ? 0 : hex_width/2);
float tile_center_x = 50.0f + hex_width*i + offset;
float tile_center_y = 50.0f + 1.5*hex_radius*j;
draw_hexagon(cr, tile_center_x, tile_center_y);
cr->set_source_rgba(0.3,0.0,0.0,0.2);//167.0f/256, 206.0f/256, 0.0f/256, 1.0);
cr->fill();
}
}
bool HexMap::on_draw(const Cairo::RefPtr<Cairo::Context>& cr)
{
Gtk::Allocation allocation = get_allocation();
const int width = 200;
const int height = 200; //allocation.get_height()/2;
// scale to unit square and translate (0, 0) to be (0.5, 0.5), i.e.
// the center of the window
// cr->scale(width, height);
// cr->translate(0.5, 0.5);
// cr->fill_preserve();
// cr->restore();
// cr->stroke_preserve();
// cr->clip();
draw_hexmap(cr, *model, highlighted);
return true;
}
bool HexMap::on_timeout()
{
// force our program to redraw the entire clock.
queue_draw();
/* auto win = get_window();
if (win)
{
Gdk::Rectangle r(0, 0, get_allocation().get_width(),
get_allocation().get_height());
win->invalidate_rect(r, false);
}
*/
return true;
}