nuclear@0: #include <assert.h>
nuclear@0: #include "opengl.h"
nuclear@0: #include "game.h"
nuclear@0: #include <stdio.h>
nuclear@0: #include <goatvr.h>
nuclear@0: #include "main.h"
nuclear@0: #include "scene.h"
nuclear@0: #include "timer.h"
nuclear@0: #include "rtarg.h"
nuclear@0: #include "opt.h"
nuclear@0: 
nuclear@0: static bool vr_mode = true;
nuclear@0: static int win_width, win_height;
nuclear@0: static RenderTarget vr_rtarg;
nuclear@0: 
nuclear@0: bool game_init(int argc, char **argv)
nuclear@0: {
nuclear@0: 	if(!parse_args(argc, argv)) {
nuclear@0: 		return false;
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	init_gl();
nuclear@0: 
nuclear@0: 	if(vr_mode) {
nuclear@0: 		if(vr_init() == -1) {
nuclear@0: 			return false;
nuclear@0: 		}
nuclear@0: 
nuclear@0: 		win_width = vr_geti_def(VR_DISPLAY_WIDTH, 1280);
nuclear@0: 		win_height = vr_geti_def(VR_DISPLAY_HEIGHT, 800);
nuclear@0: 		resize_window(win_width, win_height);
nuclear@0: 
nuclear@0: 		int rt_width = vr_geti_def(VR_RENDER_XRES, win_width);
nuclear@0: 		int rt_height = vr_geti_def(VR_RENDER_YRES, win_height);
nuclear@0: 		vr_rtarg.create(rt_width, rt_height);
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	return true;
nuclear@0: }
nuclear@0: 
nuclear@0: void game_shutdown()
nuclear@0: {
nuclear@0: 	vr_shutdown();
nuclear@0: }
nuclear@0: 
nuclear@0: void game_draw()
nuclear@0: {
nuclear@0: 	static unsigned long prev_msec;
nuclear@0: 	unsigned long msec = get_msec();
nuclear@0: 	float dt = (float)(msec - prev_msec) / 1000.0;
nuclear@0: 
nuclear@0: 	update_scene(msec, dt);
nuclear@0: 
nuclear@0: 	if(vr_mode) {
nuclear@0: 		set_render_target(&vr_rtarg);
nuclear@0: 
nuclear@0: 		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@0: 
nuclear@0: 		for(int i=0; i<2; i++) {
nuclear@0: 			vr_begin(i);
nuclear@0: 
nuclear@0: 			glViewport(i == VR_EYE_LEFT ? 0 : vr_rtarg.get_width() / 2, 0, vr_rtarg.get_width() / 2, vr_rtarg.get_height());
nuclear@0: 
nuclear@0: 			glMatrixMode(GL_PROJECTION);
nuclear@0: 			float proj[16];
nuclear@0: 			if(vr_proj_matrix(i, 0.5, 500.0, proj)) {
nuclear@0: 				glLoadMatrixf(proj);
nuclear@0: 			} else {
nuclear@0: 				glLoadIdentity();
nuclear@0: 				gluPerspective(50.0, (float)win_width / 2.0 / (float)win_height, 0.5, 500.0);
nuclear@0: 			}
nuclear@0: 
nuclear@0: 			float view[16];
nuclear@0: 			vr_view_matrix(i, view);
nuclear@0: 
nuclear@0: 			glMatrixMode(GL_MODELVIEW);
nuclear@0: 			glLoadMatrixf(view);
nuclear@0: 			glTranslatef(0, -vr_getf(VR_EYE_HEIGHT), 0);
nuclear@0: 
nuclear@0: 			draw_scene();
nuclear@0: 
nuclear@0: 			vr_end();
nuclear@0: 		}
nuclear@0: 
nuclear@0: 		set_render_target(0);
nuclear@0: 		glViewport(0, 0, win_width, win_height);
nuclear@0: 
nuclear@0: 		vr_swap_buffers();
nuclear@0: 
nuclear@0: 	} else {
nuclear@0: 		glMatrixMode(GL_MODELVIEW);
nuclear@0: 		glLoadIdentity();
nuclear@0: 
nuclear@0: 		draw_scene();
nuclear@0: 
nuclear@0: 		swap_buffers();
nuclear@0: 	}
nuclear@0: 
nuclear@0: 	assert(glGetError() == GL_NO_ERROR);
nuclear@0: }
nuclear@0: 
nuclear@0: void game_reshape(int x, int y)
nuclear@0: {
nuclear@0: 	glViewport(0, 0, x, y);
nuclear@0: 
nuclear@0: 	if(vr_mode) {
nuclear@0: 		vr_rtarg.resize(x, y);
nuclear@0: 
nuclear@0: 		float umax = (float)vr_rtarg.get_width() / (float)vr_rtarg.get_tex_width();
nuclear@0: 		float vmax = (float)vr_rtarg.get_height() / (float)vr_rtarg.get_tex_height();
nuclear@0: 		vr_output_texture(vr_rtarg.get_texture(), 0, 0, umax, vmax);
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: void game_keyboard(int key, bool press)
nuclear@0: {
nuclear@0: 	if(press) {
nuclear@0: 		switch(key) {
nuclear@0: 		case 27:
nuclear@0: 			quit();
nuclear@0: 
nuclear@0: 		case ' ':
nuclear@0: 			if(vr_mode) {
nuclear@0: 				vr_recenter();
nuclear@0: 			}
nuclear@0: 			break;
nuclear@0: 		}
nuclear@0: 	}
nuclear@0: }
nuclear@0: 
nuclear@0: void game_mbutton(int bn, bool press, int x, int y)
nuclear@0: {
nuclear@0: }
nuclear@0: 
nuclear@0: void game_mmotion(int x, int y)
nuclear@0: {
nuclear@0: }