Add galactic map, make it possible to other zones on the map.

1 files changed, 164 insertions, 0 deletions

diff --git a/src/client/galaxymapwidget.cc b/src/client/galaxymapwidget.cc
new file mode 100644
index 0000000..508567a
--- /dev/null
+++ b/src/client/galaxymapwidget.cc
@@ -0,0 +1,164 @@
+/*
+   client/galaxymapwidget.cc
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#include "client/galaxymapwidget.h"
+#include "core/application.h"
+#include "ui/paint.h"
+#include "render/render.h"
+#include "render/gl.h"
+#include "ui/ui.h"
+
+namespace client {
+
+GalaxyMapWidget::GalaxyMapWidget(ui::Widget *parent) : ui::Widget(parent)
+{
+	set_label("galaxymapwidget");
+	galaxymapwidget_zone = 0;
+	galaxymapwidget_hover_id = 0;
+	galaxymapwidget_zoom = 1.0f;
+}
+
+GalaxyMapWidget::~GalaxyMapWidget()
+{
+	
+}
+
+void GalaxyMapWidget::set_zoom(const float zoom)
+{
+	galaxymapwidget_zoom = zoom;
+}
+
+void GalaxyMapWidget::set_zone(core::Zone *zone)
+{
+	galaxymapwidget_zone = zone;
+}
+
+bool GalaxyMapWidget::on_keypress(const int key, const unsigned int modifier)
+{
+	if (key == 512 + SDL_BUTTON_LEFT) {
+		if (has_mouse_focus() && hover()) {
+			if (zone() && (zone()->id() == hover())) {
+				emit(ui::Widget::EventDoubleClicked);
+			} else {
+				set_zone(core::Zone::find(hover()));
+				emit(ui::Widget::EventClicked);
+			}
+		}
+		return true;
+
+	}
+	return false;
+}
+
+void GalaxyMapWidget::draw()
+{
+	// size and global location of the map
+	const float map_size = math::min(width(), height());
+	math::Vector2f map_location(global_location());
+	
+	if (map_size < width()) {
+		map_location[0] += (width() - map_size) * 0.5f;
+	}
+	if (map_size < height()) {
+		map_location[1] += (height() - map_size) * 0.5f;
+	}
+
+	// draw background
+	math::Vector2f background_size(map_size, map_size);
+	ui::Paint::draw_material(map_location, background_size, "ui/background");
+	
+	// number of squares in one grid segment
+	const float grid_size = 16.0f;
+	
+	// draw the grid itself
+	gl::color(0, 0, 0.8f);
+	gl::begin(gl::Lines);
+	
+	for (float i = 0; i <= grid_size; i += 1.0f) {
+		gl::vertex(map_location.x(), map_location.y() + map_size / grid_size * i);
+		gl::vertex(map_location.x() + map_size, map_location.y() + map_size / grid_size * i);
+
+		gl::vertex(map_location.x() + map_size / grid_size * i, map_location.y());
+		gl::vertex(map_location.x() + map_size / grid_size * i, map_location.y() + map_size);
+	}
+	gl::end();
+
+	// request required textures
+	const size_t texture_zone = render::Textures::load("bitmaps/icons/entity_default");
+	render::Textures::bind(texture_zone);
+
+	// global mouse cursor location
+	const math::Vector2f cursor(ui::root()->global_mouse_coords());
+	galaxymapwidget_hover_id = 0;
+	
+	// map center
+	//math::Vector2f map_center(map_location[0] + map_size / 2.0f,  map_location[1] + map_size / 2.0f);
+	math::Vector2f icon_location;
+	const float r = 12.0f; 		// radius of map icons	
+	float scale = 1024.0f; 		// galaxy size (in zone location units)
+	math::Color color(1.0f, 1.0f, 1.0f, 1.0f);
+	const core::Zone *zone = 0;
+
+	// draw map icons
+	/*
+	 * Note: the galactic coordinate system differs from the zone coordinate system:
+	 * positive X-axis runs left-to-right on the screen and the positive U-axis runs bottom-to-top on the screen.
+	 * 
+	 * This is because I'm lazy and I just copy the coordinates from the SVG starsystem roadmap as shown in Inkscape.
+	 */
+	gl::enable(GL_TEXTURE_2D);
+	gl::begin(gl::Quads);
+
+
+	for (core::Zone::Registry::iterator it = core::Zone::registry().begin(); it != core::Zone::registry().end(); it++) {
+		zone = (*it).second;
+	
+		bool draw_icon = true;
+		
+		icon_location.assign(map_location);
+		icon_location[0] += map_size / scale * zone->location().x();		
+		icon_location[1] += map_size - map_size / scale * zone->location().y(); // flip vertically
+		
+		if (math::distancesquared(cursor, icon_location) < (r*r)) {
+			galaxymapwidget_hover_id = zone->id();
+		}
+		
+		if (zone == galaxymapwidget_zone) {
+			if (core::application()->time() - floorf(core::application()->time()) < 0.5f) {
+				draw_icon = false;
+			}
+		}
+		// TODO draw a ship icon for current location		
+		if (draw_icon) {
+			gl::begin(gl::Quads);
+
+			gl::color(color);
+			glTexCoord2f(0.0f, 0.0f);
+			gl::vertex(icon_location.x() - r, icon_location.y() - r);
+
+			glTexCoord2f(1.0f, 0.0f);
+			gl::vertex(icon_location.x() + r, icon_location.y() - r);
+
+			glTexCoord2f(1.0f, 1.0f);
+			gl::vertex(icon_location.x() + r, icon_location.y() + r);
+
+			glTexCoord2f(0.0f, 1.0f);
+			gl::vertex(icon_location.x() - r, icon_location.y() + r);
+		}
+
+	}
+	
+	gl::end();
+	gl::disable(GL_TEXTURE_2D);
+	
+	if (has_mouse_focus()) {
+		if (galaxymapwidget_hover_id)
+			ui::root()->set_pointer("target", ui::Palette::Active, true);
+	}
+}
+
+} // namespace client
+