nuclear@1: #include <stdio.h>
nuclear@1: #include <string.h>
nuclear@1: #include "opengl.h"
nuclear@1: #include "level.h"
nuclear@1: #include "tile.h"
nuclear@1: 
nuclear@1: Level::Level()
nuclear@1: {
nuclear@1: 	cell_size = 1.0;
nuclear@1: 
nuclear@1: 	cells = 0;
nuclear@1: 	xsz = ysz = 0;
nuclear@1: }
nuclear@1: 
nuclear@1: Level::~Level()
nuclear@1: {
nuclear@1: 	delete [] cells;
nuclear@1: }
nuclear@1: 
nuclear@1: bool Level::load(const char *fname)
nuclear@1: {
nuclear@1: 	xsz = ysz = 64;
nuclear@1: 
nuclear@1: 	cells = new GridCell*[xsz * ysz];
nuclear@1: 	memset(cells, 0, xsz * ysz * sizeof *cells);
nuclear@1: 
nuclear@1: 	GridCell *g = new GridCell;
nuclear@1: 	g->add_tile(new Tile);
nuclear@1: 	cells[ysz / 2 * xsz + xsz / 2] = g;
nuclear@1: 
nuclear@1: 	return true;
nuclear@1: }
nuclear@1: 
nuclear@1: bool Level::save(const char *fname) const
nuclear@1: {
nuclear@1: 	return false;
nuclear@1: }
nuclear@1: 
nuclear@1: const GridCell *Level::get_cell(int x, int y) const
nuclear@1: {
nuclear@1: 	if(x < 0 || x >= xsz || y < 0 || y >= ysz) {
nuclear@1: 		return 0;
nuclear@1: 	}
nuclear@1: 	return cells[y * xsz + x];
nuclear@1: }
nuclear@1: 
nuclear@1: Vector3 Level::get_cell_pos(int x, int y) const
nuclear@1: {
nuclear@1: 	float posx = (x - xsz / 2) * cell_size;
nuclear@1: 	float posy = (y - ysz / 2) * cell_size;
nuclear@1: 	return Vector3(posx, 0, posy);
nuclear@1: }
nuclear@1: 
nuclear@1: void Level::draw() const
nuclear@1: {
nuclear@1: 	glMatrixMode(GL_MODELVIEW);
nuclear@1: 
nuclear@1: 	draw_grid();
nuclear@1: 
nuclear@1: 	for(int i=0; i<ysz; i++) {
nuclear@1: 		for(int j=0; j<xsz; j++) {
nuclear@1: 			const GridCell *cell = get_cell(j, i);
nuclear@1: 			if(cell) {
nuclear@1: 				Vector3 pos = get_cell_pos(j, i);
nuclear@1: 				glPushMatrix();
nuclear@1: 				glTranslatef(pos.x, pos.y, pos.z);
nuclear@1: 				glScalef(cell_size, cell_size, cell_size);
nuclear@1: 				cell->draw();
nuclear@1: 				glPopMatrix();
nuclear@1: 			}
nuclear@1: 		}
nuclear@1: 	}
nuclear@1: }
nuclear@1: 
nuclear@1: void Level::draw_grid() const
nuclear@1: {
nuclear@1: 	float xlen = xsz * cell_size;
nuclear@1: 	float ylen = ysz * cell_size;
nuclear@1: 
nuclear@1: 	glPushAttrib(GL_ENABLE_BIT);
nuclear@1: 	glDisable(GL_LIGHTING);
nuclear@1: 
nuclear@1: 	glBegin(GL_LINES);
nuclear@1: 	glColor3f(0.4, 0.4, 0.4);
nuclear@1: 
nuclear@1: 	float y = -ylen / 2.0 - cell_size / 2.0;
nuclear@1: 	for(int i=0; i<ysz; i++) {
nuclear@1: 		glVertex3f(-xlen / 2.0, 0, y);
nuclear@1: 		glVertex3f(xlen / 2.0, 0, y);
nuclear@1: 		y += cell_size;
nuclear@1: 	}
nuclear@1: 
nuclear@1: 	float x = -xlen / 2.0 - cell_size / 2.0;
nuclear@1: 	for(int i=0; i<xsz; i++) {
nuclear@1: 		glVertex3f(x, 0, -ylen / 2.0);
nuclear@1: 		glVertex3f(x, 0, ylen / 2.0);
nuclear@1: 		x += cell_size;
nuclear@1: 	}
nuclear@1: 	glEnd();
nuclear@1: 
nuclear@1: 	glPopAttrib();
nuclear@1: }
nuclear@1: 
nuclear@1: void GridCell::add_tile(const Tile *tile)
nuclear@1: {
nuclear@1: 	tiles.push_back(tile);
nuclear@1: }
nuclear@1: 
nuclear@1: void GridCell::draw() const
nuclear@1: {
nuclear@1: 	for(size_t i=0; i<tiles.size(); i++) {
nuclear@1: 		tiles[i]->draw();
nuclear@1: 	}
nuclear@1: }