Revision 220
gunner collisions
| ent.c | ||
|---|---|---|
| 5 | 5 |
#include "graph.h" |
| 6 | 6 |
#include "sprite.h" |
| 7 | 7 |
|
| 8 |
#include <math.h> |
|
| 9 |
|
|
| 8 | 10 |
static double scale = 1.0; |
| 9 | 11 |
static int16_t x_origin = 0; |
| 10 | 12 |
static int16_t y_origin = 0; |
| ... | ... | |
| 133 | 135 |
} |
| 134 | 136 |
int16_t (map_get_x_screen)(const map_t *p){ return (-x_origin)*scale; }
|
| 135 | 137 |
int16_t (map_get_y_screen)(const map_t *p){ return (-y_origin)*scale; }
|
| 136 |
int (map_collides)(const map_t *p, double x, double y){
|
|
| 138 |
int (map_collides_point)(const map_t *p, double x, double y){
|
|
| 137 | 139 |
const uint16_t w = sprite_get_w(p->background), h = sprite_get_h(p->background); |
| 138 | 140 |
int16_t x_ = x, y_ = y; |
| 139 | 141 |
if(x_ < 0 || w <= x_ || y_ < 0 || h <= y_) return 0; |
| 140 | 142 |
uint32_t pos = x_ + y_*w; |
| 141 | 143 |
return p->collide[pos]; |
| 142 | 144 |
} |
| 145 |
|
|
| 146 |
int (map_collides_gunner)(const map_t *p, gunner_t *shooter) {
|
|
| 147 |
double radius = sprite_get_w(shooter->dude)/2.0; |
|
| 148 |
double shooter_x = gunner_get_x(shooter); |
|
| 149 |
for (double x = shooter_x - radius; x < shooter_x + radius; x += 1) {
|
|
| 150 |
double y1 = sqrt(1 - x*x); |
|
| 151 |
double y2 = -y1; |
|
| 152 |
if (map_collides_point(p, x, y1) || map_collides_point(p, x, y2)) return 1; |
|
| 153 |
} |
|
| 154 |
return 0; |
|
| 155 |
} |
|
| 156 |
|
|
| 157 |
int (map_collides_bullet)(const map_t *p, bullet_t *bullet) {
|
|
| 158 |
return 0; |
|
| 159 |
} |
|
| 160 |
|
|
| 143 | 161 |
void (map_draw)(map_t *p){
|
| 144 | 162 |
const int16_t x_screen = map_get_x_screen(p); |
| 145 | 163 |
const int16_t y_screen = map_get_y_screen(p); |
Also available in: Unified diff