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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2015 Franklin Wei
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* This code draws heavily on
* Jake Gordon's "How to build a racing game" tutorial at
*
* <http://codeincomplete.com/projects/racer/>
*
* and
*
* Louis Gorenfield's "Lou's Pseudo 3d Page" at
*
* <http://www.extentofthejam.com/pseudo/>
*
* Thanks!
*/
#include "plugin.h"
#include "xracer.h"
#include "compat.h"
#include "generator.h"
#include "graphics.h"
#include "map.h"
#include "maps.h"
#include "road.h"
#include "sprite.h"
#include "util.h"
#include "lib/helper.h"
#include "lib/pluginlib_actions.h"
#include "lib/pluginlib_exit.h"
#include "fixedpoint.h" /* only used for FOV computation */
/* can move to audiobuf if too big... */
struct road_segment road[MAX_ROAD_LENGTH];
/* this can be changed to allow for variable-sized maps */
unsigned int road_length=MAX_ROAD_LENGTH;
int camera_height = CAMERA_HEIGHT;
void generate_test_road(void)
{
gen_reset();
add_road(road, road_length, 0, road_length, 0, 0);
for(unsigned int i = 0; i < road_length; ++i)
add_sprite(road + i, &sprites[0]);
}
void do_early_init(void)
{
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
/* GIMME DAT RAW POWAH!!! */
rb->cpu_boost(true);
#endif
/* disable backlight timeout */
backlight_ignore_timeout();
init_alloc();
}
#if LCD_DEPTH < 4
struct _grey_info _grey_info;
#endif
void do_late_init(void)
{
#if (LCD_DEPTH < 4)
/* greylib init */
size_t buf_sz = util_alloc_remaining();
if(!grey_init(util_alloc(buf_sz), buf_sz,
GREY_BUFFERED|GREY_RAWMAPPED|GREY_ON_COP,
LCD_WIDTH, LCD_HEIGHT, NULL))
{
error("grey init failed");
}
grey_show(true);
#endif
}
enum plugin_status do_flythrough(void)
{
struct camera_t camera;
camera.depth = camera_calc_depth(CAMERA_FOV);
LOGF("camera depth: %d", camera.depth);
camera.pos.x = 0;
/* y is automatically calculated */
camera.pos.z = 0;
//generate_test_road();
//road_length = load_map(road, MAX_ROAD_LENGTH, loop_map, ARRAYLEN(loop_map));
road_length = load_external_map(road, MAX_ROAD_LENGTH, "/output.xrm");
if(road_length == (unsigned int)-1)
{
warning("Failed to load map, using random map");
road_length = MAX_ROAD_LENGTH;
generate_random_road(road, road_length, HILLS, CURVES);
}
long last_timestamp = *rb->current_tick;
do_late_init();
while(1)
{
static const struct button_mapping *plugin_contexts[] = { pla_main_ctx };
int button = pluginlib_getaction(0, plugin_contexts, ARRAYLEN(plugin_contexts));
switch(button)
{
case PLA_UP:
case PLA_UP_REPEAT:
camera_height+=MANUAL_SPEED;
break;
case PLA_DOWN:
case PLA_DOWN_REPEAT:
camera_height-=MANUAL_SPEED;
break;
case PLA_LEFT:
case PLA_LEFT_REPEAT:
camera.pos.x-=MANUAL_SPEED;
break;
case PLA_RIGHT:
case PLA_RIGHT_REPEAT:
camera.pos.x+=MANUAL_SPEED;
break;
case PLA_CANCEL:
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
return PLUGIN_OK;
default:
exit_on_usb(button);
break;
}
camera.pos.z += 512;
/* loop the track right before going off the "end" */
camera.pos.z %= (road_length - DRAW_DIST) * SEGMENT_LENGTH;
render(&camera, road, road_length, camera_height);
SET_FOREGROUND(LCD_WHITE);
SET_BACKGROUND(LCD_BLACK);
int dt = *rb->current_tick - last_timestamp;
char buf[16];
//rb->snprintf(buf, sizeof(buf), "FPS: %ld", HZ/(!dt?1:dt));
rb->snprintf(buf, sizeof(buf), "DT: %d", dt);
PUTSXY(0, 0, buf);
LCD_UPDATE();
//rb->sleep((HZ/100)-dt);
rb->yield();
last_timestamp = *rb->current_tick;
}
}
/* plugin_start(): plugin entry point */
/* contains main loop */
enum plugin_status plugin_start(const void *param)
{
(void) param;
do_early_init();
enum plugin_status rc = do_flythrough();
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
return rc;
}
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