| 12 |
12 |
uint16_t w, h;
|
| 13 |
13 |
int16_t u0, v0;
|
| 14 |
14 |
double theta;
|
|
15 |
double scale;
|
| 15 |
16 |
uint8_t *map;
|
| 16 |
17 |
};
|
| 17 |
18 |
|
| ... | ... | |
| 32 |
33 |
ret->u0 = u0;
|
| 33 |
34 |
ret->v0 = u0;
|
| 34 |
35 |
ret->theta = 0;
|
|
36 |
ret->scale = 1;
|
| 35 |
37 |
return ret;
|
| 36 |
38 |
}
|
| 37 |
39 |
void (sprite_dtor)(sprite_t *p){
|
| ... | ... | |
| 40 |
42 |
free(p);
|
| 41 |
43 |
}
|
| 42 |
44 |
|
| 43 |
|
void (sprite_set_pos) (sprite_t *p, int16_t x, int16_t y) {
|
| 44 |
|
p->x = max(0, x); p->y = max(0, y);
|
| 45 |
|
p->x = min(p->x, graph_get_XRes() - 1); p->y = min(p->y, graph_get_YRes() - 1);
|
| 46 |
|
}
|
| 47 |
|
void (sprite_set_angle) (sprite_t *p, double angle){ p->theta = angle; }
|
|
45 |
void (sprite_set_pos) (sprite_t *p, int16_t x , int16_t y ){ p->x = x; p->y = y; }
|
| 48 |
46 |
void (sprite_set_center)(sprite_t *p, int16_t u0, int16_t v0){ p->u0 = u0; p->v0 = v0; }
|
| 49 |
|
|
|
47 |
void (sprite_set_angle) (sprite_t *p, double angle ){ p->theta = angle; }
|
|
48 |
void (sprite_set_scale) (sprite_t *p, double scale ){ p->scale = scale; }
|
| 50 |
49 |
int16_t (sprite_get_x)(const sprite_t *p){ return p->x; }
|
| 51 |
50 |
int16_t (sprite_get_y)(const sprite_t *p){ return p->y; }
|
| 52 |
51 |
uint16_t (sprite_get_w)(const sprite_t *p){ return p->w; }
|
| 53 |
52 |
uint16_t (sprite_get_h)(const sprite_t *p){ return p->h; }
|
| 54 |
53 |
|
| 55 |
54 |
void (sprite_src2pic)(const sprite_t *p, int16_t x, int16_t y, int16_t *u, int16_t *v){
|
| 56 |
|
int16_t dx = x - p->x;
|
| 57 |
|
int16_t dy = y - p->y;
|
| 58 |
55 |
double s = fm_sin(p->theta);
|
| 59 |
56 |
double c = fm_cos(p->theta);
|
| 60 |
|
*u = dx*c - dy*s + p->u0;
|
| 61 |
|
*v = dx*s + dy*c + p->v0;
|
|
57 |
double dx = (x - p->x)/p->scale;
|
|
58 |
double dy = (y - p->y)/p->scale;
|
|
59 |
int16_t du = dx*c - dy*s + 0.5;
|
|
60 |
int16_t dv = dx*s + dy*c + 0.5;
|
|
61 |
*u = du + p->u0;
|
|
62 |
*v = dv + p->v0;
|
| 62 |
63 |
}
|
| 63 |
64 |
|
|
65 |
void (sprite_pic2src)(const sprite_t *p, int16_t u, int16_t v, int16_t *x, int16_t *y){
|
|
66 |
double s = fm_sin(p->theta);
|
|
67 |
double c = fm_cos(p->theta);
|
|
68 |
int16_t du = u - p->u0;
|
|
69 |
int16_t dv = v - p->v0;
|
|
70 |
double dx = du*c + dv*s;
|
|
71 |
double dy = -du*s + dv*c;
|
|
72 |
*x = dx*p->scale + 0.5 + p->x;
|
|
73 |
*y = dy*p->scale + 0.5 + p->y;
|
|
74 |
}
|
|
75 |
|
| 64 |
76 |
void (sprite_draw)(const sprite_t *p){
|
| 65 |
|
const int16_t diag = sqrt(p->w*p->w + p->h*p->h)+2;
|
|
77 |
int16_t xmin, xmax, ymin, ymax; {
|
|
78 |
int16_t x, y;
|
|
79 |
sprite_pic2src(p, 0 , 0 , &x, &y);
|
|
80 |
xmin = x; xmax = x; ymin = y; ymax = y;
|
|
81 |
sprite_pic2src(p, p->w, 0 , &x, &y);
|
|
82 |
xmin = min(x, xmin); xmax = max(x, xmax); ymin = min(y, ymin); ymax = max(y, ymax);
|
|
83 |
sprite_pic2src(p, 0 , p->h, &x, &y);
|
|
84 |
xmin = min(x, xmin); xmax = max(x, xmax); ymin = min(y, ymin); ymax = max(y, ymax);
|
|
85 |
sprite_pic2src(p, p->w, p->h, &x, &y);
|
|
86 |
xmin = min(x, xmin); xmax = max(x, xmax); ymin = min(y, ymin); ymax = max(y, ymax);
|
|
87 |
xmin = max(xmin-2, 0); xmax = min(xmax+2, graph_get_XRes());
|
|
88 |
ymin = max(ymin-2, 0); ymax = min(ymax+2, graph_get_YRes());
|
|
89 |
}
|
| 66 |
90 |
int16_t u, v;
|
| 67 |
|
for(int16_t y = max(0,p->y-diag); y < min(p->y+diag,graph_get_YRes()); ++y){
|
| 68 |
|
for(int16_t x = max(0,p->x-diag); x < min(p->x+diag,graph_get_XRes()); ++x){
|
|
91 |
for(int16_t y = ymin; y < ymax; ++y){
|
|
92 |
for(int16_t x = xmin; x < xmax; ++x){
|
|
93 |
//const int16_t diag = p->scale*sqrt(p->w*p->w + p->h*p->h)+2;
|
|
94 |
//for(int16_t y = max(0,p->y-diag); y < min(p->y+diag,graph_get_YRes()); ++y){
|
|
95 |
// for(int16_t x = max(0,p->x-diag); x < min(p->x+diag,graph_get_XRes()); ++x){
|
| 69 |
96 |
sprite_src2pic(p, x, y, &u, &v);
|
| 70 |
97 |
if(0 <= u && u < p->w && 0 <= v && v < p->h){
|
| 71 |
98 |
uint32_t c = *(uint32_t*)(p->map + (v*p->w + u)*4);
|