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#include "renderer.h"
#include <cassert>
#include "opengl.h"
#include "vec.h"
using namespace Shared::Graphics;
using namespace Shared::Graphics::Gl;
namespace Glest{ namespace MapEditor{
// ===============================================
// class Renderer
// ===============================================
void Renderer::init(int clientW, int clientH){
assertGl();
glFrontFace(GL_CW);
glEnable(GL_CULL_FACE);
glPolygonMode(GL_FRONT, GL_FILL);
glClearColor(0.5, 0.5, 0.5, 1.0);
assertGl();
}
void Renderer::renderMap(Map *map, int x, int y, int clientW, int clientH, int cellSize){
float alt;
assertGl();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, clientW,0, clientH,1,-1);
glViewport(0, 0, clientW, clientH);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glPushAttrib(GL_CURRENT_BIT);
glTranslatef(static_cast<float>(x), static_cast<float>(y), 0.0f);
glLineWidth(1);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0, 0, 0);
for (int j=0; j<map->getH(); j++){
for (int i=0; i<map->getW(); i++){
if (i*cellSize+x>-cellSize && i*cellSize+x<clientW && clientH-cellSize-j*cellSize+y>-cellSize && clientH-cellSize-j*cellSize+y<clientH){
//surface
alt= map->getHeight(i, j)/20.f;
Vec3f surfColor;
switch (map->getSurface(i, j)){
case 1: surfColor= Vec3f(0.0, 0.8f*alt, 0.f); break;
case 2: surfColor= Vec3f(0.4f*alt, 0.6f*alt, 0.f); break;
case 3: surfColor= Vec3f(0.6f*alt, 0.3f*alt, 0.f); break;
case 4: surfColor= Vec3f(0.7f*alt, 0.7f*alt, 0.7f*alt); break;
case 5: surfColor= Vec3f(1.0f*alt, 0.f, 0.f); break;
}
glColor3fv(surfColor.ptr());
glBegin(GL_TRIANGLE_STRIP);
glVertex2i(i*cellSize, clientH-j*cellSize-cellSize);
glVertex2i(i*cellSize, clientH-j*cellSize);
glVertex2i(i*cellSize+cellSize, clientH-j*cellSize-cellSize);
glVertex2i(i*cellSize+cellSize, clientH-j*cellSize);
glEnd();
//objects
switch(map->getObject(i,j)){
case 0: glColor3f(0.f, 0.f, 0.f); break;
case 1: glColor3f(1.f, 0.f, 0.f); break;
case 2: glColor3f(1.f, 1.f, 1.f); break;
case 3: glColor3f(0.5f, 0.5f, 1.f); break;
case 4: glColor3f(0.f, 0.f, 1.f); break;
case 5: glColor3f(0.5f, 0.5f, 0.5f); break;
case 6: glColor3f(1.f, 0.8f, 0.5f); break;
case 7: glColor3f(0.f, 1.f, 1.f); break;
case 8: glColor3f(0.7f, 0.1f, 0.3f); break;
case 9: glColor3f(0.5f, 1.f, 0.1f); break;
case 10:glColor3f(1.f, 0.2f, 0.8f); break;
}
if(map->getObject(i, j)!=0){
glPointSize(cellSize/2.f);
glBegin(GL_POINTS);
glVertex2i(i*cellSize+cellSize/2, clientH-j*cellSize-cellSize/2);
glEnd();
}
bool found= false;
//height lines
if(!found){
glColor3fv((surfColor*0.5f).ptr());
//left
if(i>0 && map->getHeight(i-1, j)>map->getHeight(i, j)){
glBegin(GL_LINES);
glVertex2i(i*cellSize, clientH-(j+1)*cellSize);
glVertex2i(i*cellSize, clientH-j*cellSize);
glEnd();
}
//down
if(j>0 && map->getHeight(i, j-1)>map->getHeight(i, j)){
glBegin(GL_LINES);
glVertex2i(i*cellSize, clientH-j*cellSize);
glVertex2i((i+1)*cellSize, clientH-j*cellSize);
glEnd();
}
glColor3fv((surfColor*2.f).ptr());
//left
if(i>0 && map->getHeight(i-1, j)<map->getHeight(i, j)){
glBegin(GL_LINES);
glVertex2i(i*cellSize, clientH-(j+1)*cellSize);
glVertex2i(i*cellSize, clientH-j*cellSize);
glEnd();
}
if(j>0 && map->getHeight(i, j-1)<map->getHeight(i, j)){
glBegin(GL_LINES);
glVertex2i(i*cellSize, clientH-j*cellSize);
glVertex2i((i+1)*cellSize, clientH-j*cellSize);
glEnd();
}
}
//resources
switch(map->getResource(i,j)){
case 1: glColor3f(1.f, 1.f, 0.f); break;
case 2: glColor3f(0.5f, 0.5f, 0.5f); break;
case 3: glColor3f(1.f, 0.f, 0.f); break;
case 4: glColor3f(0.f, 0.f, 1.f); break;
case 5: glColor3f(0.5f, 0.5f, 1.f); break;
}
if (map->getResource(i,j)!=0){
glBegin(GL_LINES);
glVertex2i(i*cellSize, clientH-j*cellSize-cellSize);
glVertex2i(i*cellSize+cellSize, clientH-j*cellSize);
glVertex2i(i*cellSize, clientH-j*cellSize);
glVertex2i(i*cellSize+cellSize, clientH-j*cellSize-cellSize);
glEnd();
}
}
}
}
//start locations
glLineWidth(3);
for (int i=0; i<map->getMaxPlayers(); i++){
switch(i){
case 0: glColor3f(1.f, 1.f, 0.f); break;
case 1: glColor3f(0.5f, 0.5f, 0.5f); break;
case 2: glColor3f(1.f, 0.f, 0.f); break;
case 3: glColor3f(0.f, 0.f, 1.f); break;
}
glBegin(GL_LINES);
glVertex2i((map->getStartLocationX(i)-1)*cellSize, clientH- (map->getStartLocationY(i)-1)*cellSize);
glVertex2i((map->getStartLocationX(i)+1)*cellSize+cellSize, clientH- (map->getStartLocationY(i)+1)*cellSize-cellSize);
glVertex2i((map->getStartLocationX(i)-1)*cellSize, clientH- (map->getStartLocationY(i)+1)*cellSize-cellSize);
glVertex2i((map->getStartLocationX(i)+1)*cellSize+cellSize, clientH- (map->getStartLocationY(i)-1)*cellSize);
glEnd();
}
glPopMatrix();
glPopAttrib();
assertGl();
}
}}// end namespace
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