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/*
* TopView.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "TopView.h"
#include <Data/Level.h>
#include <Data/Room.h>
#include <Data/Triangle.h>
#include <Gui/RenderArea.h>
#include <GL/gl.h>
#include <cmath>
namespace ZoomEdit {
namespace View {
void TopView::drawGrid(Gui::RenderArea *renderArea) {
float depth = std::log10(renderArea->getScale())-0.75f;
float depth2 = std::floor(depth);
float step = std::pow(0.1f, depth2);
float x1, x2;
float y1, y2;
float width = renderArea->getViewWidth();
float height = renderArea->getViewHeight();
x1 = x2 = renderArea->getXCenter();
y1 = y2 = renderArea->getYCenter();
x1 -= width/2; x2 += width/2;
y1 -= height/2; y2 += height/2;
glLineWidth(1.0f);
glBegin(GL_LINES);
for(int i = 0; 0.4f*(depth-depth2+i-1) < 0.5f; i++) {
float f = std::min(0.4f*(depth-depth2+i), 0.5f);
glColor3f(f, f, f);
for(f = x1 - std::fmod(x1, step); f <= x2; f+=step) {
glVertex2f(f, y1);
glVertex2f(f, y2);
}
for(f = y1 - std::fmod(y1, step); f <= y2; f+=step) {
glVertex2f(x1, f);
glVertex2f(x2, f);
}
step *= 10;
}
glEnd();
}
void TopView::renderRoom(Data::Room *room) {
const std::list<Data::Triangle*> &floor = room->getFloorTriangles();
glColor4f(0.0f, 0.7f, 1.0f, 0.3f);
glBegin(GL_TRIANGLES);
for(std::list<Data::Triangle*>::const_iterator t = floor.begin(); t != floor.end(); ++t) {
for(int i = 0; i < 3; ++i) {
const Data::Vertex &v = (*t)->getVertex(i);
glVertex2f(v.getX(), v.getZ());
}
}
glEnd();
}
void TopView::render(Gui::RenderArea *renderArea) {
drawGrid(renderArea);
if(!level)
return;
const std::list<Data::Room*> &rooms = level->getRooms();
for(std::list<Data::Room*>::const_iterator room = rooms.begin(); room != rooms.end(); ++room)
renderRoom(*room);
}
}
}
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