From 61fe986e9ad6d1f26275e2ffd72cae0c2542256c Mon Sep 17 00:00:00 2001
From: Jon Bergli Heier <snakebite@jvnv.net>
Date: Sun, 3 Apr 2011 15:09:13 +0200
Subject: Implemented very ineffective dynamic terrain LOD.

---
 main.cpp | 42 ++++++++++++++++++++++++++++++++++--------
 1 file changed, 34 insertions(+), 8 deletions(-)

(limited to 'main.cpp')

diff --git a/main.cpp b/main.cpp
index ae1b471..5f089e8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -72,13 +72,17 @@ int main(int argc, char **argv) {
 	SDL_Event event;
 	bool running = true;
 	bool grid = false;
+	bool terrain = true;
 	bool gravity = true;
 	SDL_WarpMouse(video::width/2, video::height/2);
 	unsigned int last_time = SDL_GetTicks();
+	unsigned int last_update = SDL_GetTicks();
 	/*boost::timer t;
 	double last_time = 0;*/
 	Vector3 selected;
 	Quadtree::QuadNode *node;
+	Quadtree::QuadNode *last_node = NULL;
+	scene.update();
 	while(running) {
 		unsigned int time = SDL_GetTicks();
 		//double time = t.elapsed();
@@ -86,6 +90,10 @@ int main(int argc, char **argv) {
 		unsigned int steps = time - last_time + 1;
 		//double steps = (time - last_time) * 1000;
 		last_time = time;
+		/*if(time - last_update > 5000) {
+			scene.update();
+			last_update = time;
+		}*/
 		bool do_select = 0;
 		int sx, sy;
 		while(SDL_PollEvent(&event)) {
@@ -101,6 +109,9 @@ int main(int argc, char **argv) {
 						case SDLK_g:
 							grid = !grid;
 							break;
+						case SDLK_t:
+							terrain = !terrain;
+							break;
 						case SDLK_KP_PLUS:
 						case SDLK_PLUS:
 							scene.qt->create_nodes(scene.qt->levels+1);
@@ -127,6 +138,12 @@ int main(int argc, char **argv) {
 						case SDLK_h:
 							gravity = !gravity;
 							break;
+						case SDLK_u:
+							scene.update();
+							break;
+						case SDLK_c:
+							scene.qt->fix_cracks();
+							break;
 						default:
 							break;
 					}
@@ -190,8 +207,9 @@ int main(int argc, char **argv) {
 			scene.pos.y -= 0.002*steps*(keystate[SDLK_LSHIFT]?10:1);
 		if(keystate[SDLK_e])
 			scene.pos.y += 0.002*steps*(keystate[SDLK_LSHIFT]?10:1);
-		if(moved && (forward || right))
+		if(moved && (forward || right)) {
 			scene.move(forward, right, steps*(keystate[SDLK_LSHIFT]?10:1));
+		}
 
 		std::string move_str;
 		Quadtree::QuadNode *node = scene.qt->find(scene.pos.x, scene.pos.z);
@@ -209,18 +227,21 @@ int main(int argc, char **argv) {
 				}
 			}
 			move_str = (boost::format("%s %.2f,%.2f %.2fx%.2f %d") % scene.pos.str() % node->x % node->y % node->width % node->height % node->level).str();
-		}
 
-		scene.update();
+			if(last_node != node) {
+				last_node = node;
+				scene.update();
+			}
+		}
 
 		scene.lookat();
 
-		glEnable(GL_LIGHTING);
+		//glEnable(GL_LIGHTING);
 		const float light_pos[4] = {50, 100, 50, 1};
 		//const float light_pos[4] = {0, 1, 0, 0};
-		glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
+		//glLightfv(GL_LIGHT0, GL_POSITION, light_pos);
 
-		if(!grid) {
+		if(terrain) {
 			program.use();
 			glBindTexture(GL_TEXTURE_2D, grass_texture);
 			glEnable(GL_TEXTURE_2D);
@@ -237,7 +258,12 @@ int main(int argc, char **argv) {
 			glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 			glDisable(GL_TEXTURE_2D);
 			glUseProgram(0);
-		} else {
+		}
+		if(grid) {
+			if(terrain)
+				glColor3f(0, 0, 0);
+			else
+				glColor3f(1, 1, 1);
 			std::queue<Quadtree::QuadNode*> q;
 			q.push(scene.qt->root);
 			while(!q.empty()) {
@@ -251,7 +277,7 @@ int main(int argc, char **argv) {
 			}
 		}
 
-		glDisable(GL_LIGHTING);
+		//glDisable(GL_LIGHTING);
 
 		float px, py, pz;
 		if(do_select && scene.select(sx, sy, px, py, pz)) {
-- 
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