nuclear@6: #include "config.h"
nuclear@5: #include "game.h"
nuclear@5: #include "gbasys.h"
nuclear@8: #include "x3d.h"
nuclear@8: #include "sincos.h"
nuclear@8: #include "fixed.h"
nuclear@9: #include "palman.h"
nuclear@13: #include "ggen.h"
nuclear@17: #include "data.h"
nuclear@18: #include "logger.h"
nuclear@9: 
nuclear@14: extern int dbg_fill_dump;
nuclear@14: 
nuclear@18: static void draw_fps_meter(unsigned long msec);
nuclear@9: static void draw_rect(int x, int y, int w, int h, uint16_t color);
nuclear@5: 
nuclear@5: #define X16INT(x)	((x) << 16)
nuclear@12: #define X16FLT(x)	((int32_t)((x) * 65536.0))
nuclear@5: 
nuclear@18: static int32_t cam_theta, cam_phi = 25 << 16;
nuclear@18: static int autorot = 1;
nuclear@8: 
nuclear@13: static struct mesh box;
nuclear@17: static int tex;
nuclear@18: static int fps;
nuclear@19: static short show_fps = 1;
nuclear@13: 
nuclear@8: int game_init(void)
nuclear@8: {
nuclear@8: 	sincos_init();
nuclear@9: #ifdef PALMODE
nuclear@9: 	palman_init();
nuclear@9: #endif
nuclear@8: 
nuclear@17: 	tex = x3d_create_texture_rgb(test_width, test_height, test_pixels);
nuclear@17: 
nuclear@12: 	x3d_projection(45.0, (WIDTH << 16) / HEIGHT, 65536 / 2, 65536 * 500);
nuclear@12: 
nuclear@13: 	init_mesh(&box);
nuclear@13: 	gen_box(&box);
nuclear@13: 
nuclear@8: 	return 0;
nuclear@8: }
nuclear@5: 
nuclear@18: static void update(unsigned long msec)
nuclear@18: {
nuclear@18: 	static unsigned long prev_upd;
nuclear@18: 	unsigned long dt = msec - prev_upd;
nuclear@18: 	int keys = get_key_state(KEY_ALL);
nuclear@18: 	prev_upd = msec;
nuclear@18: 
nuclear@18: 	if(keys & KEY_LEFT) {
nuclear@18: 		cam_theta += dt << 12;
nuclear@18: 	}
nuclear@18: 	if(keys & KEY_RIGHT) {
nuclear@18: 		cam_theta -= dt << 12;
nuclear@18: 	}
nuclear@18: 	if(keys & KEY_UP) {
nuclear@18: 		cam_phi += dt << 12;
nuclear@18: 		if(cam_phi > (90 << 16)) {
nuclear@18: 			cam_phi = 90 << 16;
nuclear@18: 		}
nuclear@18: 	}
nuclear@18: 	if(keys & KEY_DOWN) {
nuclear@18: 		cam_phi -= dt << 12;
nuclear@18: 		if(cam_phi < -(90 << 16)) {
nuclear@18: 			cam_phi = -90 << 16;
nuclear@18: 		}
nuclear@18: 	}
nuclear@18: }
nuclear@9: 
nuclear@5: void game_draw(void)
nuclear@5: {
nuclear@8: 	unsigned long msec = get_millisec();
nuclear@8: 
nuclear@18: 	update(msec);
nuclear@18: 
nuclear@5: 	clear_buffer(back_buffer, 0);
nuclear@5: 
nuclear@8: 	x3d_load_identity();
nuclear@14: 	x3d_translate(0, 0, X16INT(6));
nuclear@13: 	x3d_rotate(cam_phi, 65536, 0, 0);
nuclear@14: 	if(autorot) {
nuclear@14: 		x3d_rotate((msec / 64) << 16, 0, 65536, 0);
nuclear@14: 	} else {
nuclear@14: 		x3d_rotate(cam_theta, 0, 65536, 0);
nuclear@14: 	}
nuclear@6: 
nuclear@9: #ifdef PALMODE
nuclear@9: 	x3d_color_index(255);
nuclear@9: #else
nuclear@8: 	x3d_color(65536, 65536, 65536);
nuclear@9: #endif
nuclear@13: 
nuclear@17: 	x3d_enable_texture(tex);
nuclear@13: 	draw_mesh(&box);
nuclear@17: 	x3d_disable_texture();
nuclear@13: 
nuclear@19: 	if(show_fps) {
nuclear@19: 		draw_fps_meter(msec);
nuclear@19: 	}
nuclear@6: 
nuclear@5: 	flip();
nuclear@5: }
nuclear@5: 
nuclear@18: static void draw_fps_meter(unsigned long msec)
nuclear@18: {
nuclear@18: 	static unsigned long last_msec;
nuclear@18: 	static unsigned long nframes;
nuclear@18: 	unsigned long dt = msec - last_msec;
nuclear@18: 	int bar_height;
nuclear@18: 
nuclear@18: 	++nframes;
nuclear@18: 
nuclear@19: 	if(dt >= 1500) {
nuclear@18: 		last_msec = msec;
nuclear@18: 		fps = 1000 * nframes / dt;
nuclear@18: 		nframes = 0;
nuclear@18: 		logmsg(LOG_DBG, "fps: %d\n", fps);
nuclear@18: 	}
nuclear@18: 
nuclear@18: 	bar_height = fps * 4;
nuclear@18: 	if(bar_height > HEIGHT) bar_height = HEIGHT;
nuclear@18: 
nuclear@19: 	draw_rect(0, HEIGHT - bar_height - 1, 1, bar_height, RGB(0, 255, 0));
nuclear@18: }
nuclear@18: 
nuclear@5: void game_keyb(int key, int pressed)
nuclear@5: {
nuclear@9: 	if(!pressed) return;
nuclear@9: 
nuclear@9: 	switch(key) {
nuclear@9: 	case KEY_A:
nuclear@9: 		autorot = !autorot;
nuclear@9: 		break;
nuclear@9: 
nuclear@14: 	case KEY_SELECT:
nuclear@14: 		dbg_fill_dump = 1;
nuclear@14: 		break;
nuclear@14: 
nuclear@19: 	case KEY_START:
nuclear@19: 		show_fps = !show_fps;
nuclear@19: 		break;
nuclear@19: 
nuclear@9: 	default:
nuclear@9: 		break;
nuclear@9: 	}
nuclear@5: }
nuclear@9: 
nuclear@9: #ifdef PALMODE
nuclear@9: #define ROWADV	(WIDTH / 2)
nuclear@9: #else
nuclear@9: #define ROWADV	WIDTH
nuclear@9: #endif
nuclear@9: 
nuclear@9: static void draw_rect(int x, int y, int w, int h, uint16_t color)
nuclear@9: {
nuclear@9: 	int i, xsz = w, ysz = h;
nuclear@9: 	uint16_t *pixels = back_buffer->pixels;
nuclear@9: 	uint16_t *topleft, *topright, *botleft;
nuclear@9: 
nuclear@9: #ifdef PALMODE
nuclear@9: 	pixels += (y * WIDTH + x) / 2;
nuclear@9: 	topleft = pixels;
nuclear@9: 	topright = (uint16_t*)back_buffer->pixels + (y * WIDTH + x + w - 1) / 2;
nuclear@9: 
nuclear@9: 	color |= color << 8;
nuclear@9: 	xsz /= 2;
nuclear@9: #else
nuclear@9: 	pixels += y * WIDTH + x;
nuclear@9: 	topleft = pixels;
nuclear@9: 	topright = topleft + w - 1;
nuclear@9: #endif
nuclear@9: 	botleft = topleft + (ysz - 1) * ROWADV;
nuclear@9: 
nuclear@9: #ifdef PALMODE
nuclear@9: 	if(x & 1) {
nuclear@9: 		*topleft = (*topleft & 0xff) | (color & 0xff00);
nuclear@9: 		*botleft = (*topleft & 0xff) | (color & 0xff00);
nuclear@9: 		++topleft;
nuclear@9: 		++botleft;
nuclear@9: 		xsz -= 1;
nuclear@9: 	}
nuclear@9: #endif
nuclear@9: 	for(i=0; i<xsz; i++) {
nuclear@9: 		*topleft++ = color;
nuclear@9: 		*botleft++ = color;
nuclear@9: 	}
nuclear@9: 
nuclear@9: 	topleft = pixels;
nuclear@9: 	for(i=0; i<ysz; i++) {
nuclear@9: #ifdef PALMODE
nuclear@9: 		if(x & 1) {
nuclear@9: 			*topleft = (*topleft & 0xff) | (color & 0xff00);
nuclear@9: 		} else {
nuclear@9: 			*topleft = (*topleft & 0xff00) | (color & 0xff);
nuclear@9: 		}
nuclear@9: 
nuclear@9: 		if((x + w - 1) & 1) {
nuclear@9: 			*topright = (*topright & 0xff) | (color & 0xff00);
nuclear@9: 		} else {
nuclear@9: 			*topright = (*topright & 0xff00) | (color & 0xff);
nuclear@9: 		}
nuclear@9: #else
nuclear@9: 		*topleft = color;
nuclear@9: 		*topright = color;
nuclear@9: #endif
nuclear@9: 
nuclear@9: 		topleft += ROWADV;
nuclear@9: 		topright += ROWADV;
nuclear@9: 	}
nuclear@9: }