cacalabs
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libcaca
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* Added nifty rotation to our 80's star.

tags/v0.99.beta14
Jean-Yves Lamoureux jylam 19 年之前
父節點
f62cea48fd
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595a9fcf51
共有 1 個檔案被更改，包括 61 行新增 和 27 行删除
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  1. +61
    -27
      src/cacademo.c

+ 61
- 27
src/cacademo.c 查看文件

@@ -76,6 +76,7 @@ float star[] = {
-0.313000,-0.349000 -0.313000,-0.349000
}; };


float star_rot[sizeof(star)/sizeof(*star)];


/* Global variables */ /* Global variables */
static int frame = 0; static int frame = 0;
@@ -89,8 +90,6 @@ int main(int argc, char **argv)
unsigned int i; unsigned int i;
int transition = cucul_rand(0, TRANSITION_COUNT); int transition = cucul_rand(0, TRANSITION_COUNT);




/* Set up two canvases, a mask, and attach a display to the front one */ /* Set up two canvases, a mask, and attach a display to the front one */
frontcv = cucul_create_canvas(0, 0); frontcv = cucul_create_canvas(0, 0);
backcv = cucul_create_canvas(0, 0); backcv = cucul_create_canvas(0, 0);
@@ -216,51 +215,86 @@ void do_transition(cucul_canvas_t *mask, int transition, float time)
float muly = time*cucul_get_canvas_height(mask); float muly = time*cucul_get_canvas_height(mask);
int w2 = cucul_get_canvas_width(mask) / 2; int w2 = cucul_get_canvas_width(mask) / 2;
int h2 = cucul_get_canvas_height(mask) / 2; int h2 = cucul_get_canvas_height(mask) / 2;

float angle = (time*360)*3.14/180, x,y;
unsigned int i;
switch(transition) switch(transition)
{ {
case TRANSITION_STAR: case TRANSITION_STAR:
/* Compute rotated coordinates */
for(i=0;i<(sizeof(star)/sizeof(*star))/2;i++)
{
x = star[OFFSET_X(i)];
y = star[OFFSET_Y(i)];

star_rot[OFFSET_X(i)] = x*cos(angle) - y*sin(angle);
star_rot[OFFSET_Y(i)] = y*cos(angle) + x*sin(angle);
}

mulx*=1.8; mulx*=1.8;
muly*=1.8; muly*=1.8;
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(0)]*mulx+w2, star[OFFSET_Y(0)]*muly+h2,
star[OFFSET_X(1)]*mulx+w2, star[OFFSET_Y(1)]*muly+h2,
star[OFFSET_X(9)]*mulx+w2, star[OFFSET_Y(9)]*muly+h2,
star_rot[OFFSET_X(0)]*mulx+w2,
star_rot[OFFSET_Y(0)]*muly+h2,
star_rot[OFFSET_X(1)]*mulx+w2,
star_rot[OFFSET_Y(1)]*muly+h2,
star_rot[OFFSET_X(9)]*mulx+w2,
star_rot[OFFSET_Y(9)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(1)]*mulx+w2, star[OFFSET_Y(1)]*muly+h2,
star[OFFSET_X(2)]*mulx+w2, star[OFFSET_Y(2)]*muly+h2,
star[OFFSET_X(3)]*mulx+w2, star[OFFSET_Y(3)]*muly+h2,
star_rot[OFFSET_X(1)]*mulx+w2,
star_rot[OFFSET_Y(1)]*muly+h2,
star_rot[OFFSET_X(2)]*mulx+w2,
star_rot[OFFSET_Y(2)]*muly+h2,
star_rot[OFFSET_X(3)]*mulx+w2,
star_rot[OFFSET_Y(3)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(3)]*mulx+w2, star[OFFSET_Y(3)]*muly+h2,
star[OFFSET_X(4)]*mulx+w2, star[OFFSET_Y(4)]*muly+h2,
star[OFFSET_X(5)]*mulx+w2, star[OFFSET_Y(5)]*muly+h2,
star_rot[OFFSET_X(3)]*mulx+w2,
star_rot[OFFSET_Y(3)]*muly+h2,
star_rot[OFFSET_X(4)]*mulx+w2,
star_rot[OFFSET_Y(4)]*muly+h2,
star_rot[OFFSET_X(5)]*mulx+w2,
star_rot[OFFSET_Y(5)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(5)]*mulx+w2, star[OFFSET_Y(5)]*muly+h2,
star[OFFSET_X(6)]*mulx+w2, star[OFFSET_Y(6)]*muly+h2,
star[OFFSET_X(7)]*mulx+w2, star[OFFSET_Y(7)]*muly+h2,
star_rot[OFFSET_X(5)]*mulx+w2,
star_rot[OFFSET_Y(5)]*muly+h2,
star_rot[OFFSET_X(6)]*mulx+w2,
star_rot[OFFSET_Y(6)]*muly+h2,
star_rot[OFFSET_X(7)]*mulx+w2,
star_rot[OFFSET_Y(7)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(7)]*mulx+w2, star[OFFSET_Y(7)]*muly+h2,
star[OFFSET_X(8)]*mulx+w2, star[OFFSET_Y(8)]*muly+h2,
star[OFFSET_X(9)]*mulx+w2, star[OFFSET_Y(9)]*muly+h2,
star_rot[OFFSET_X(7)]*mulx+w2,
star_rot[OFFSET_Y(7)]*muly+h2,
star_rot[OFFSET_X(8)]*mulx+w2,
star_rot[OFFSET_Y(8)]*muly+h2,
star_rot[OFFSET_X(9)]*mulx+w2,
star_rot[OFFSET_Y(9)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(9)]*mulx+w2, star[OFFSET_Y(9)]*muly+h2,
star[OFFSET_X(1)]*mulx+w2, star[OFFSET_Y(1)]*muly+h2,
star[OFFSET_X(5)]*mulx+w2, star[OFFSET_Y(5)]*muly+h2,
star_rot[OFFSET_X(9)]*mulx+w2,
star_rot[OFFSET_Y(9)]*muly+h2,
star_rot[OFFSET_X(1)]*mulx+w2,
star_rot[OFFSET_Y(1)]*muly+h2,
star_rot[OFFSET_X(5)]*mulx+w2,
star_rot[OFFSET_Y(5)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(9)]*mulx+w2, star[OFFSET_Y(9)]*muly+h2,
star[OFFSET_X(5)]*mulx+w2, star[OFFSET_Y(5)]*muly+h2,
star[OFFSET_X(7)]*mulx+w2, star[OFFSET_Y(7)]*muly+h2,
star_rot[OFFSET_X(9)]*mulx+w2,
star_rot[OFFSET_Y(9)]*muly+h2,
star_rot[OFFSET_X(5)]*mulx+w2,
star_rot[OFFSET_Y(5)]*muly+h2,
star_rot[OFFSET_X(7)]*mulx+w2,
star_rot[OFFSET_Y(7)]*muly+h2,
"#"); "#");
cucul_fill_triangle(mask, cucul_fill_triangle(mask,
star[OFFSET_X(1)]*mulx+w2, star[OFFSET_Y(1)]*muly+h2,
star[OFFSET_X(3)]*mulx+w2, star[OFFSET_Y(3)]*muly+h2,
star[OFFSET_X(5)]*mulx+w2, star[OFFSET_Y(5)]*muly+h2,
star_rot[OFFSET_X(1)]*mulx+w2,
star_rot[OFFSET_Y(1)]*muly+h2,
star_rot[OFFSET_X(3)]*mulx+w2,
star_rot[OFFSET_Y(3)]*muly+h2,
star_rot[OFFSET_X(5)]*mulx+w2,
star_rot[OFFSET_Y(5)]*muly+h2,
"#"); "#");
break; break;




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