started on the enemy logic

[gbajam22] / src / gamescr.c

diff --git a/src/gamescr.c b/src/gamescr.c
index 18ef9e5..d53943e 100644 (file)
--- a/src/gamescr.c
+++ b/src/gamescr.c
@@ -22,6 +22,8 @@
 #define E_RATE 250
 #define SHOT_TIME      50
 
+#define ENEMY_VIS_RANGE        (2 * FAR / 3)
+
 static int gamescr_start(void);
 static void gamescr_stop(void);
 static void gamescr_frame(void);
@@ -59,7 +61,7 @@ static int hit_px, hit_py;
 #define COLOR_HORIZON  192
 #define COLOR_ZENITH   255
 
-#define MAX_SPR                32
+#define MAX_SPR                40
 static uint16_t oam[4 * MAX_SPR];
 static int dynspr_base, dynspr_count;
 
@@ -74,6 +76,7 @@ static int energy;
 
 static int score;
 static unsigned long total_time, start_time;
+static int running;
 
 #define XFORM_PIXEL_X(x, y)    (xform_ca * (x) - xform_sa * (y) + (120 << 8))
 #define XFORM_PIXEL_Y(x, y)    (xform_sa * (x) + xform_ca * (y) + (80 << 8))
@@ -182,6 +185,7 @@ static int gamescr_start(void)
                }
        }
 endspawn:
+       total_enemies = 1;      /* XXX DBG */
        /* check continuity */
        for(i=0; i<total_enemies; i++) {
                if(enemies[i].anm <= 0) {
@@ -201,13 +205,19 @@ endspawn:
        total_time = 0;
        start_time = timer_msec;
 
+       hitfrm = 0;
+
        vblcount = 0;
        nframes = 0;
+
+       running = 1;
        return 0;
 }
 
 static void gamescr_stop(void)
 {
+       running = 0;
+
        iwram_brk(prev_iwram_top);
 
        wait_vblank();
@@ -340,6 +350,27 @@ static int update(void)
                vox_view(pos[0], pos[1], -40, angle);
        }
 
+       /* enemy logic */
+       enemy = enemies;
+       for(i=0; i<total_enemies; i++) {
+               int32_t dx, dy;
+
+               if(enemy->hp <= 0 || timer_msec - enemy->last_shot < E_RATE) {
+                       enemy++;
+                       continue;
+               }
+
+               dx = enemy->vobj.x - pos[0];
+               dy = enemy->vobj.y - pos[1];
+               if(abs(dx >> 16) < ENEMY_VIS_RANGE && abs(dy >> 16) < ENEMY_VIS_RANGE) {
+                       if(vox_check_vis(enemy->vobj.x, enemy->vobj.y, pos[0], pos[1])) {
+                               enemy->last_shot = timer_msec;
+                               /* TODO shoot */
+                       }
+               }
+               enemy++;
+       }
+
        snum = 0;
        /* turrets number */
        spr_oam(oam, dynspr_base + snum++, numspr[num_kills][0], 200, 144, SPR_VRECT | SPR_256COL);
@@ -436,6 +467,22 @@ static void draw(void)
        vox_render();
        //vox_sky_grad(COLOR_HORIZON, COLOR_ZENITH);
        //vox_sky_solid(COLOR_ZENITH);
+
+       if(score >= 0) {
+               int sec = total_time / 1000;
+
+               fillblock_16byte(framebuf + 8 * 240 / 2, 199 | (199 << 8) | (199 << 16) | (199 << 24), 40 * 240 / 16);
+
+               glyphfb = framebuf;
+               glyphbg = 199;
+               glyphcolor = 197;
+               dbg_drawstr(80, 10, "Victory!");
+               glyphcolor = 200;
+               dbg_drawstr(30, 20, "       Score: %d", score);
+               dbg_drawstr(30, 28, "Completed in: %lum.%lus", sec / 60, sec % 60);
+               glyphcolor = 198;
+               dbg_drawstr(85, 40, "Press start to exit");
+       }
 }
 
 static void victory(void)
@@ -467,6 +514,8 @@ static void gamescr_vblank(void)
        static int bank, bankdir, theta;
        int32_t sa, ca;
 
+       if(!running) return;
+
        vblcount++;
 
        /* TODO: pre-arrange sprite tiles in gba-native format, so that I can just