435 lines
9.7 KiB
C++
435 lines
9.7 KiB
C++
/*
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* "Ballfield"
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*
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* (C) David Olofson <david@olofson.net>, 2002, 2003
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*
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* This software is released under the terms of the GPL.
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*
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* Contact author for permission if you want to use this
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* software, or work derived from it, under other terms.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <android/log.h>
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#include <wchar.h>
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#include <SDL/SDL.h>
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#include <SDL/SDL_image.h>
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#include <SDL/SDL_screenkeyboard.h>
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#define fprintf(X, ...) __android_log_print(ANDROID_LOG_INFO, "Ballfield", __VA_ARGS__)
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#define printf(...) __android_log_print(ANDROID_LOG_INFO, "Ballfield", __VA_ARGS__)
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/*----------------------------------------------------------
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Definitions...
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----------------------------------------------------------*/
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#define SCREEN_W 1280
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#define SCREEN_H 800
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/*----------------------------------------------------------
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General tool functions
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----------------------------------------------------------*/
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/*
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* Bump areas of low and high alpha to 0% or 100%
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* respectively, just in case the graphics contains
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* "alpha noise".
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*/
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SDL_Surface *clean_alpha(SDL_Surface *s)
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{
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SDL_Surface *work;
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SDL_Rect r;
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Uint32 *pixels;
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int pp;
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int x, y;
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work = SDL_CreateRGBSurface(SDL_SWSURFACE, s->w, s->h,
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32, 0xff000000, 0x00ff0000, 0x0000ff00,
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0x000000ff);
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if(!work)
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return NULL;
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r.x = r.y = 0;
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r.w = s->w;
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r.h = s->h;
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if(SDL_BlitSurface(s, &r, work, NULL) < 0)
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{
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SDL_FreeSurface(work);
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return NULL;
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}
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SDL_LockSurface(work);
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pixels = (Uint32 *)work->pixels;
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pp = work->pitch / sizeof(Uint32);
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for(y = 0; y < work->h; ++y)
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for(x = 0; x < work->w; ++x)
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{
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Uint32 pix = pixels[y*pp + x];
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switch((pix & 0xff) >> 4)
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{
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case 0:
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pix = 0x00000000;
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break;
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default:
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break;
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case 15:
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pix |= 0xff;
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break;
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}
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pixels[y*pp + x] = pix;
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}
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SDL_UnlockSurface(work);
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return work;
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}
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/*
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* Load and convert an antialiazed, zoomed set of sprites.
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*/
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SDL_Surface *load_zoomed(char *name, int alpha)
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{
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SDL_Surface *sprites;
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SDL_Surface *temp = IMG_Load(name);
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if(!temp)
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return NULL;
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/*
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sprites = temp;
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SDL_SetAlpha(sprites, 0, 255);
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temp = clean_alpha(sprites);
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SDL_FreeSurface(sprites);
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*/
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if(!temp)
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{
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fprintf(stderr, "Could not clean alpha!\n");
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return NULL;
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}
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if(alpha)
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{
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SDL_SetAlpha(temp, 0, SDL_ALPHA_OPAQUE);
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sprites = SDL_DisplayFormatAlpha(temp);
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}
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else
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{
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SDL_SetColorKey(temp, SDL_SRCCOLORKEY,
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SDL_MapRGB(temp->format, 0, 0, 0));
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sprites = SDL_DisplayFormat(temp);
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}
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SDL_FreeSurface(temp);
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return sprites;
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}
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void print_num(SDL_Surface *dst, SDL_Surface *font, int x, int y, float value)
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{
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char buf[16];
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int val = (int)(value * 10.0);
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int pos, p = 0;
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SDL_Rect from;
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/* Sign */
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if(val < 0)
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{
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buf[p++] = 10;
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val = -val;
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}
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/* Integer part */
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pos = 10000000;
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while(pos > 1)
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{
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int num = val / pos;
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val -= num * pos;
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pos /= 10;
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if(p || num)
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buf[p++] = num;
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}
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/* Decimals */
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if(val / pos)
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{
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buf[p++] = 11;
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while(pos > 0)
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{
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int num = val / pos;
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val -= num * pos;
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pos /= 10;
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buf[p++] = num;
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}
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}
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/* Render! */
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from.y = 0;
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from.w = 7;
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from.h = 10;
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for(pos = 0; pos < p; ++pos)
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{
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SDL_Rect to;
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to.x = x + pos * 7;
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to.y = y;
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from.x = buf[pos] * 7;
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SDL_BlitSurface(font, &from, dst, &to);
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}
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}
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/*
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* Draw tiled background image with offset.
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*/
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void tiled_back(SDL_Surface *back, SDL_Surface *screen, int xo, int yo)
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{
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SDL_Rect r;
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xo %= back->w/8;
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yo %= back->h/8;
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r.x = xo - back->w/2 + screen->w/2;
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r.y = yo - back->h/2 + screen->h/2;
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r.w = back->w;
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r.h = back->h;
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SDL_BlitSurface(back, NULL, screen, &r);
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}
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void print_num_hex(SDL_Surface *dst, SDL_Surface *font, int x, int y, unsigned val)
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{
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char buf[8];
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int pos, p = 0;
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SDL_Rect from;
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//val = htonl(val); // Big-endian
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/* Render! */
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from.y = 0;
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from.w = 7;
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from.h = 10;
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for(pos = 0; pos < 8; ++pos)
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{
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SDL_Rect to;
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to.x = 8 * 7 - (x + pos * 7); // Little-endian number wrapped backwards
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to.y = y;
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from.x = ( ( val >> (pos * 4) ) & 0xf ) * 7;
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SDL_BlitSurface(font, &from, dst, &to);
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}
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}
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/*----------------------------------------------------------
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main()
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----------------------------------------------------------*/
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int main(int argc, char* argv[])
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{
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SDL_Surface *screen;
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SDL_Surface *temp_image;
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SDL_Surface *back, *logo, *font, *font_hex;
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SDL_Event event;
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int bpp = 16,
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flags = SDL_HWSURFACE,
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alpha = 1;
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int x_offs = 0, y_offs = 0;
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long tick,
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last_tick,
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last_avg_tick;
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double t = 0;
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float dt;
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int i;
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float fps = 0.0;
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int fps_count = 0;
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int fps_start = 0;
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float x_speed, y_speed, z_speed;
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enum { MAX_POINTERS = 16 };
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// some random colors
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int colors[MAX_POINTERS] = { 0xaaaaaa, 0xffffff, 0x888888, 0xcccccc, 0x666666, 0x999999, 0xdddddd, 0xeeeeee, 0xaaaaaa, 0xffffff, 0x888888, 0xcccccc, 0x666666, 0x999999, 0xdddddd, 0xeeeeee };
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struct TouchPointer_t { int x; int y; int pressure; int pressed; } touchPointers[MAX_POINTERS];
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int accel[5], screenjoy[4], gamepads[4][8];
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SDL_Surface *mouse[4];
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int screenKeyboardShown = 0;
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SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK);
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SDL_EnableUNICODE(1);
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SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
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SDL_Joystick * joysticks[6];
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for( i = 0; i < 6; i++ )
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joysticks[i] = SDL_JoystickOpen(i);
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atexit(SDL_Quit);
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screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, bpp, flags);
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if(!screen)
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{
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fprintf(stderr, "Failed to open screen!\n");
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exit(-1);
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}
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SDL_WM_SetCaption("Ballfield", "Ballfield");
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if(flags & SDL_FULLSCREEN)
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SDL_ShowCursor(0);
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/*
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* Load background image
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*/
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temp_image = IMG_Load("maxresdefault.jpg");
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if(!temp_image)
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{
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fprintf(stderr, "Could not load background!\n");
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exit(-1);
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}
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back = SDL_DisplayFormat(temp_image);
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SDL_FreeSurface(temp_image);
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/*
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* Load logo
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*/
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temp_image = SDL_LoadBMP("logo.bmp");
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if(!temp_image)
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{
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fprintf(stderr, "Could not load logo!\n");
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exit(-1);
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}
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SDL_SetColorKey(temp_image, SDL_SRCCOLORKEY,
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SDL_MapRGB(temp_image->format, 255, 0, 255));
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logo = SDL_DisplayFormat(temp_image);
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SDL_FreeSurface(temp_image);
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/*
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* Load font
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*/
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temp_image = SDL_LoadBMP("font7x10.bmp");
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if(!temp_image)
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{
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fprintf(stderr, "Could not load font!\n");
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exit(-1);
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}
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SDL_SetColorKey(temp_image, SDL_SRCCOLORKEY,
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SDL_MapRGB(temp_image->format, 255, 0, 255));
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font = SDL_DisplayFormat(temp_image);
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SDL_FreeSurface(temp_image);
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temp_image = SDL_LoadBMP("font7x10-hex.bmp");
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if(!temp_image)
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{
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fprintf(stderr, "Could not load hex font!\n");
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exit(-1);
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}
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SDL_SetColorKey(temp_image, SDL_SRCCOLORKEY,
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SDL_MapRGB(temp_image->format, 255, 0, 255));
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font_hex = SDL_DisplayFormat(temp_image);
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SDL_FreeSurface(temp_image);
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for(i = 0; i < 4; i++)
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{
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char name[32];
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sprintf(name, "mouse%d.png", i);
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temp_image = IMG_Load(name);
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if(!temp_image)
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{
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fprintf(stderr, "Could not load %s!\n", name);
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exit(-1);
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}
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//mouse[i] = SDL_DisplayFormat(temp_image);
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//SDL_FreeSurface(temp_image);
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mouse[i] = temp_image; // Keep alpha
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}
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last_avg_tick = last_tick = SDL_GetTicks();
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float gyroX = SCREEN_W/2, gyroY = SCREEN_H/2;
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while(1)
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{
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SDL_Rect r;
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/* Timing */
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tick = SDL_GetTicks();
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dt = (tick - last_tick) * 0.001f;
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last_tick = tick;
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if( bpp == 32 )
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SDL_FillRect(screen, NULL, 0); // Clear alpha channel
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/* Background image */
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tiled_back(back, screen, x_offs>>11, y_offs>>11);
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/* FPS counter */
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if(tick > fps_start + 1000)
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{
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fps = (float)fps_count * 1000.0 / (tick - fps_start);
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fps_count = 0;
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fps_start = tick;
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}
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print_num(screen, font, screen->w-37, screen->h-12, fps);
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++fps_count;
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r.x = gyroX;
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r.y = gyroY;
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r.w = mouse[0]->w;
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r.h = mouse[0]->h;
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r.x -= r.w/2;
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r.y -= r.h/2;
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SDL_BlitSurface(mouse[0], NULL, screen, &r);
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SDL_Flip(SDL_GetVideoSurface());
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SDL_Event evt;
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while( SDL_PollEvent(&evt) )
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{
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if(evt.type == SDL_KEYUP || evt.type == SDL_KEYDOWN)
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{
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__android_log_print(ANDROID_LOG_INFO, "Ballfield", "SDL key event: evt %s state %s key %4d %12s scancode %4d mod %2d unicode %d", evt.type == SDL_KEYUP ? "UP " : "DOWN" , evt.key.state == SDL_PRESSED ? "PRESSED " : "RELEASED", (int)evt.key.keysym.sym, SDL_GetKeyName(evt.key.keysym.sym), (int)evt.key.keysym.scancode, (int)evt.key.keysym.mod, (int)evt.key.keysym.unicode);
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if(evt.key.keysym.sym == SDLK_ESCAPE)
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return 0;
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}
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if(evt.type == SDL_MOUSEBUTTONUP || evt.type == SDL_MOUSEBUTTONDOWN)
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{
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__android_log_print(ANDROID_LOG_INFO, "Ballfield", "SDL mouse button event: evt %s state %s button %d coords %d:%d", evt.type == SDL_MOUSEBUTTONUP ? "UP " : "DOWN" , evt.button.state == SDL_PRESSED ? "PRESSED " : "RELEASED", (int)evt.button.button, (int)evt.button.x, (int)evt.button.y);
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gyroX = SCREEN_W/2;
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gyroY = SCREEN_H/2;
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}
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if(evt.type == SDL_VIDEORESIZE)
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__android_log_print(ANDROID_LOG_INFO, "Ballfield", "SDL resize event: %d x %d", evt.resize.w, evt.resize.h);
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if(evt.type == SDL_ACTIVEEVENT)
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__android_log_print(ANDROID_LOG_INFO, "Ballfield", "======= SDL active event: gain %d state %d", evt.active.gain, evt.active.state);
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// Android-specific events - accelerometer, multitoush, and on-screen joystick
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if( evt.type == SDL_JOYAXISMOTION )
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{
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if(evt.jaxis.which == 1 && evt.jaxis.axis == 2)
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gyroX += evt.jaxis.value / 50.0f;
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if(evt.jaxis.which == 1 && evt.jaxis.axis == 3)
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gyroY -= evt.jaxis.value / 50.0f;
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if(gyroX < 0)
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gyroX = 0;
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if(gyroX > SCREEN_W)
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gyroX = SCREEN_W;
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if(gyroY < 0)
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gyroY = 0;
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if(gyroY > SCREEN_H)
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gyroY = SCREEN_H;
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}
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}
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/* Animate */
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/*
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x_speed = 500.0 * sin(t * 0.37);
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y_speed = 500.0 * sin(t * 0.53);
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z_speed = 400.0 * sin(t * 0.21);
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x_offs -= x_speed;
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y_offs -= y_speed;
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*/
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t += dt;
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}
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SDL_FreeSurface(back);
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SDL_FreeSurface(logo);
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SDL_FreeSurface(font);
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return 0;
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}
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