From 83f4b908a0edcc84d81388577f8dbdc3b8696ef2 Mon Sep 17 00:00:00 2001 From: Stefan Kinzel Date: Tue, 11 Feb 2014 21:01:10 +0100 Subject: [PATCH] initial kart commit --- games/config.in | 1 + games/games.mk | 4 + games/kart/Makefile | 8 ++ games/kart/kart.c | 197 ++++++++++++++++++++++++++++++++++++++++++++ games/kart/kart.h | 17 ++++ 5 files changed, 227 insertions(+) create mode 100644 games/kart/Makefile create mode 100644 games/kart/kart.c create mode 100644 games/kart/kart.h diff --git a/games/config.in b/games/config.in index 731004d..1612865 100644 --- a/games/config.in +++ b/games/config.in @@ -9,4 +9,5 @@ comment "Games" dep_bool "Space Invaders" GAME_SPACE_INVADERS $JOYSTICK_SUPPORT $RANDOM_SUPPORT dep_bool "Snake" GAME_SNAKE $JOYSTICK_SUPPORT $RANDOM_SUPPORT dep_bool "Breakout" GAME_BREAKOUT $JOYSTICK_SUPPORT $RANDOM_SUPPORT + dep_bool "Kart" GAME_KART $JOYSTICK_SUPPORT $RANDOM_SUPPORT endmenu diff --git a/games/games.mk b/games/games.mk index ff98d4d..2c5003c 100644 --- a/games/games.mk +++ b/games/games.mk @@ -20,3 +20,7 @@ endif ifeq ($(GAME_BREAKOUT),y) SUBDIRS += games/breakout endif + +ifeq ($(GAME_KART),y) + SUBDIRS += games/kart +endif diff --git a/games/kart/Makefile b/games/kart/Makefile new file mode 100644 index 0000000..33bd659 --- /dev/null +++ b/games/kart/Makefile @@ -0,0 +1,8 @@ +TARGET = +TOPDIR = ../.. + +include $(TOPDIR)/defaults.mk + +SRC = kart.c + +include $(TOPDIR)/rules.mk diff --git a/games/kart/kart.c b/games/kart/kart.c new file mode 100644 index 0000000..5fccbbc --- /dev/null +++ b/games/kart/kart.c @@ -0,0 +1,197 @@ +/* + * kart.c + * + * Created on: 07.02.2014 + * Author: Stefan Kinzel + */ + + +#include +#include +#include "../../config.h" +#include "../../compat/pgmspace.h" +#include "../../pixel.h" +#include "../../random/prng.h" +#include "../../util.h" +#include "../../joystick/joystick.h" +#include "../../menu/menu.h" +#include "../../scrolltext/scrolltext.h" +#include "kart.h" + + +#include + + +#if defined MENU_SUPPORT && defined GAME_KART +// icon (TODO: convert to hex) +static const uint8_t icon[8] PROGMEM = + { 0b11100001, + 0b11100001, + 0b11000011, + 0b10000111, + 0b10000111, + 0b11000011, + 0b11000011, + 0b10010111}; + +game_descriptor_t kart_game_descriptor __attribute__((section(".game_descriptors"))) = +{ + &kart_game, + icon, +}; +#endif + +#define WAIT 75 + +#define DRIVEDIV 3 +#define MOVEDIV 1 +#define DECREASE_WIDTH_DIV 120 + +#define CARCOLOR 3 +#define BORDERCOLOR 2 +#define LINECOLOR 1 + +#define CURVE_PROP 30 + +uint8_t borders[NUM_ROWS][2]; + +void kart_game(){ + + // Initialisation + uint8_t carpos = NUM_COLS / 2; + uint32_t cycle = 0; + uint8_t draw_line = 1; + uint8_t width = NUM_COLS -2; + uint8_t middle = NUM_COLS / 2; + char game_over[100] = ""; + + clear_screen(0); + + // init border memory + for(uint8_t row = 0; row < NUM_ROWS; row++){ + borders[row][0] = middle; + borders[row][1] = width; + } + + setpixel((pixel){carpos, NUM_ROWS-1}, CARCOLOR); + + // Wait some seconds to start... + while(1){ + cycle++; + wait(WAIT); + if(cycle >= DRIVEDIV*0){ + break; + } + } + + // main loop + while(1){ + + // DECREASE WIDTH + if(cycle % DECREASE_WIDTH_DIV == 0){ + width--; + } + + // MOVE-STEP + if(cycle % MOVEDIV == 0){ + if (JOYISLEFT){ + carpos++; + setpixel((pixel){carpos, NUM_ROWS-1}, 0); + }else if (JOYISRIGHT){ + carpos--; + setpixel((pixel){carpos, NUM_ROWS-1}, 0); + } + + if(check_collision(carpos)){ + break; + } + } + + // DRIVE-STEP + if(cycle % DRIVEDIV == 0){ + + // generate a route + int rnd = random8(); + if(rnd < CURVE_PROP && middle-(width/2) > 1){ + middle--; + }else if(rnd > 256-CURVE_PROP && middle+(width/2) < NUM_COLS-1){ + middle++; + } + + // shift pixmap down + drive(); + + // save border state + save_borders(middle, width); + + // draw new first line + unsigned int px; + for(px=0; px < NUM_COLS; px++){ + if(px= middle+(width/2)){ + setpixel((pixel){px, 0}, BORDERCOLOR); + } + } + } + + // toggle drawing the middle line + if(cycle % (DRIVEDIV*4) == 0){ + draw_line = 1-draw_line; + } + + // paint middle line + if(width > 4 && draw_line){ + setpixel((pixel){middle, 0}, LINECOLOR); + } + + // Paint car + setpixel((pixel){carpos, NUM_ROWS-1}, CARCOLOR); + + cycle++; + wait(WAIT); + } + + snprintf(game_over, sizeof(game_over), "0; row--){ + pixmap[plane][row][0] = pixmap[plane][row-1][0]; + pixmap[plane][row][1] = pixmap[plane][row-1][1]; + } + pixmap[plane][0][0] = 0x00; + pixmap[plane][0][1] = 0x00; + } + +} + +/** + * Save the border state at the top line, so collision detection can + * work in the last line (where the car is). + */ +void save_borders(uint8_t middle, uint8_t width){ + uint8_t row; + for(row = NUM_ROWS-1; row > 0 ; row--){ + borders[row][0] = borders[row-1][0]; + borders[row][1] = borders[row-1][1]; + } + borders[0][0] = middle; + borders[0][1] = width; +} + +/** + * check if collision occours + */ +uint8_t check_collision(uint8_t carpos){ + uint8_t middle = borders[NUM_ROWS-1][0]; + uint8_t width = borders[NUM_ROWS-1][1]; + + return ( carpos= middle+(width/2) ); +} diff --git a/games/kart/kart.h b/games/kart/kart.h new file mode 100644 index 0000000..f6903c8 --- /dev/null +++ b/games/kart/kart.h @@ -0,0 +1,17 @@ +/* + * kart.h + * + * Created on: 07.02.2014 + * Author: Stefan Kinzel + */ + +#ifndef KART_H_ +#define KART_H_ + +void kart_game(void); + +void drive(void); +void save_borders(uint8_t middle, uint8_t width); +uint8_t check_collision(uint8_t carpos); + +#endif /* KART_H_ */