gwj / graphics_tutorial · Commits

Commit e4ed3f7359b6c60440ff2134622bb5cb11e66bc4

Authored by Grzegorz Jabłoński
1 parent 8e77dce9

Added cannon with moving barrel.

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Showing 2 changed files with 46 additions and 0 deletions
01-cannon/cannon.c 0 → 100644
  View file @e4ed3f7
  1 +#include "primlib.h"
  2 +#include <stdlib.h>
  3 +#include <unistd.h>
  4 +
  5 +int main(int argc, char *argv[]) {
  6 + if (gfx_init())
  7 + exit(3);
  8 +
  9 + gfx_filledRect(0, 0, gfx_screenWidth() - 1, gfx_screenHeight() - 1, BLUE);
  10 + gfx_filledCircle(gfx_screenWidth() / 2, gfx_screenHeight(), 100, YELLOW);
  11 + gfx_line(gfx_screenWidth() / 2, gfx_screenHeight() , gfx_screenWidth() / 2, gfx_screenHeight() - 150, YELLOW);
  12 + gfx_updateScreen();
  13 +
  14 + double angle = 90.0 * (M_PI/180.0);
  15 + while(1)
  16 + {
  17 + int x = 150 * cos(angle);
  18 + int y = 150 * sin(angle);
  19 + gfx_filledRect(0, 0, gfx_screenWidth() - 1, gfx_screenHeight() - 1, BLUE);
  20 + gfx_filledCircle(gfx_screenWidth() / 2, gfx_screenHeight(), 100, YELLOW);
  21 + gfx_line(gfx_screenWidth() / 2, gfx_screenHeight() , gfx_screenWidth() / 2 + x, gfx_screenHeight() - y, YELLOW);
  22 + gfx_updateScreen();
  23 + int key=gfx_getkey();
  24 + if (key == SDLK_RIGHT)
  25 + angle -= 1.0 * (M_PI/180.0);
  26 + if (key == SDLK_LEFT)
  27 + angle += 1.0 * (M_PI/180.0);
  28 + };
  29 + return 0;
  30 +}
... ...
01-cannon/makefile 0 → 100755
  View file @e4ed3f7
  1 +TARGET=cannon
  2 +
  3 +all: $(TARGET)
  4 +
  5 +%.o:%.c
  6 + gcc -g -I.. -Wall -pedantic `sdl2-config --cflags` -c $< -o $@
  7 +
  8 +%: %.c ../primlib.o %.c
  9 + gcc -g -I.. -Wall -pedantic `sdl2-config --cflags` ../primlib.o $< -o $@ -lSDL2_gfx `sdl2-config --libs` -lm
  10 +
  11 +../primlib.o: ../primlib.c ../primlib.h
  12 +
  13 +$(TARGET): $(TARGET).c ../primlib.h
  14 +
  15 +clean:
  16 + -rm $(TARGET)
0 17 \ No newline at end of file
... ...