Textdateiankuckdingviech.

[hackover2013-badge-firmware.git] / badge / jumpnrun / jumpnrun.c

diff --git a/badge/jumpnrun/jumpnrun.c b/badge/jumpnrun/jumpnrun.c
index d3fa992..c91aac1 100644 (file)
--- a/badge/jumpnrun/jumpnrun.c
+++ b/badge/jumpnrun/jumpnrun.c
@@ -1,6 +1,10 @@
+#include "game_state.h"

 #include "jumpnrun.h"
 #include "collision.h"
 #include "levels.h"
 #include "jumpnrun.h"
 #include "collision.h"
 #include "levels.h"

+#include "player.h"
+#include "render.h"
+#include "stats.h"

 
 #include "../ui/display.h"
 #include "../ui/event.h"
 
 #include "../ui/display.h"
 #include "../ui/event.h"


@@ -12,73 +16,11 @@
 #include <stddef.h>
 #include <stdio.h>
 
 #include <stddef.h>
 #include <stdio.h>
 

-static vec2d       const gravity      = { FIXED_POINT_I(0,   0), FIXED_POINT_I(0,  56) };
-static vec2d       const move_max     = { FIXED_POINT_I(0, 600), FIXED_POINT_I(1, 300) };
-static fixed_point const accel_horiz  =   FIXED_POINT_I(0,  50);
-static fixed_point const accel_vert   =   FIXED_POINT_I(0, 167);
-static fixed_point const drag_factor  =   FIXED_POINT_I(0, 854);
-static fixed_point const speed_jump_x =   FIXED_POINT_I(0, 600);
-
-vec2d hacker_extents(void) { return (vec2d) { FIXED_INT_I(5), FIXED_INT_I(8) }; }
-static vec2d const shot_spawn_inertia = { FIXED_POINT_I(0, 800), FIXED_POINT_I(0, -800) };
-
-static badge_sprite const anim_hacker[] = {
-  { 5, 8, (uint8_t const *) "\x1c\xff\xfd\x04\x04" },
-  { 5, 8, (uint8_t const *) "\x1c\xff\x3d\xc4\x04" },
-  { 5, 8, (uint8_t const *) "\xdc\x3f\x1d\x24\xc4" },
-  { 5, 8, (uint8_t const *) "\x1c\xff\x3d\xc4\x04" }
-  /*
-    { 5, 8, (uint8_t const *) "\x46\xfc\x73\x8c\x31" },
-    { 5, 8, (uint8_t const *) "\x46\xfc\x73\x8c\x52" },
-    { 5, 8, (uint8_t const *) "\x46\xfc\x73\x94\x8c" },
-    { 5, 8, (uint8_t const *) "\x46\xfc\x73\x8c\x52" }
-  */
-  /*
-    { 6, 8, (uint8_t const *) "\x0c\xe1\x3b\x0e\xc3\x30" },
-    { 6, 8, (uint8_t const *) "\x0c\xe1\x3b\x0e\x43\x51" },
-    { 6, 8, (uint8_t const *) "\x0c\xe1\x3b\x0e\x35\x82" },
-    { 6, 8, (uint8_t const *) "\x0c\xe1\x3b\x0e\x43\x51" }
-  */
-  /*
-    { 6, 8, (uint8_t const *) "\xff\xff\xff\xff\xff\xff" },
-    { 6, 8, (uint8_t const *) "\xff\xff\xff\xff\xff\xff" },
-    { 6, 8, (uint8_t const *) "\xff\xff\xff\xff\xff\xff" },
-    { 6, 8, (uint8_t const *) "\xff\xff\xff\xff\xff\xff" }
-  */
-};
-
-static badge_sprite const anim_sickle[] = {
-  { 3, 3, (uint8_t const *) "\xab\x01" },
-  { 3, 3, (uint8_t const *) "\xee\x00" }
-/*
-  { 3, 3, (uint8_t const *) "\x8a\x01" },
-  { 3, 3, (uint8_t const *) "\x6a" },
-  { 3, 3, (uint8_t const *) "\xa3" },
-  { 3, 3, (uint8_t const *) "\xac" }
-*/
-};
-
-enum {
-  JUMPNRUN_SHOT_EXTENT = 3,
-  JUMPNRUN_SHOT_TICKS_PER_FRAME = 36
-};
-
-static void jumpnrun_shot_spawn(jumpnrun_shot *shot, jumpnrun_game_state const *state) {
-  shot->tick        = 0;
-  shot->inertia     = shot_spawn_inertia;
-
-  if(state->player.anim_direction == BADGE_BLT_MIRRORED) {
-    shot->current_box = rectangle_new((vec2d) { fixed_point_sub(rectangle_left(&state->player.current_box), FIXED_INT(JUMPNRUN_SHOT_EXTENT)), rectangle_top(&state->player.current_box) },
-                                      (vec2d) { FIXED_INT(JUMPNRUN_SHOT_EXTENT), FIXED_INT(JUMPNRUN_SHOT_EXTENT) });
-    shot->inertia.x   = fixed_point_neg(shot->inertia.x);
-  } else {
-    shot->current_box = rectangle_new((vec2d) { rectangle_right(&state->player.current_box), rectangle_top(&state->player.current_box) },
-                                      (vec2d) { FIXED_INT(JUMPNRUN_SHOT_EXTENT), FIXED_INT(JUMPNRUN_SHOT_EXTENT) });
-  }
-
-  shot->old_box = shot->current_box;
-  shot->inertia = vec2d_add(shot->inertia, state->player.inertia);
-}
+static vec2d       gravity     () { return (vec2d) { FIXED_POINT(0,   0), FIXED_POINT(0,  56) }; }
+static vec2d       move_max    () { return (vec2d) { FIXED_POINT(0, 600), FIXED_POINT(1, 300) }; }
+static fixed_point accel_horiz () { return           FIXED_POINT(0,  50); }
+static fixed_point accel_vert  () { return           FIXED_POINT(0, 167); }
+static fixed_point drag_factor () { return           FIXED_POINT(0, 854); }

 
 static inline int imax(int x, int y) {
   return x < y ? y : x;
 
 static inline int imax(int x, int y) {
   return x < y ? y : x;


@@ -86,15 +28,15 @@ static inline int imax(int x, int y) {
 
 static inline fixed_point hacker_left  (vec2d const *pos, jumpnrun_game_state const *state) { (void) state; return pos->x; }
 static inline fixed_point hacker_top   (vec2d const *pos, jumpnrun_game_state const *state) { (void) state; return pos->y; }
 
 static inline fixed_point hacker_left  (vec2d const *pos, jumpnrun_game_state const *state) { (void) state; return pos->x; }
 static inline fixed_point hacker_top   (vec2d const *pos, jumpnrun_game_state const *state) { (void) state; return pos->y; }

-static inline fixed_point hacker_right (vec2d const *pos, jumpnrun_game_state const *state) { return fixed_point_add(hacker_left(pos, state), hacker_extents().x); }
-static inline fixed_point hacker_bottom(vec2d const *pos, jumpnrun_game_state const *state) { return fixed_point_add(hacker_top (pos, state), hacker_extents().y); }
+static inline fixed_point hacker_right (vec2d const *pos, jumpnrun_game_state const *state) { return fixed_point_add(hacker_left(pos, state), jumpnrun_player_extents().x); }
+static inline fixed_point hacker_bottom(vec2d const *pos, jumpnrun_game_state const *state) { return fixed_point_add(hacker_top (pos, state), jumpnrun_player_extents().y); }

 
 int jumpnrun_level_assert_left_side(jumpnrun_game_state const *state) {
   static int const lmargin = 20;
   static int const rmargin = 50;
 
 
 int jumpnrun_level_assert_left_side(jumpnrun_game_state const *state) {
   static int const lmargin = 20;
   static int const rmargin = 50;
 

-  int pos_cur = fixed_point_cast_int(state->player.current_box.pos.x);
-  int pos_rel = pos_cur - state->left;
+  int pos_cur = fixed_point_cast_int(state->player.base.hitbox.pos.x);
+  int pos_rel = pos_cur - state->screen_left;

 
   if(pos_rel < lmargin) {
     return imax(0, pos_cur - lmargin);
 
   if(pos_rel < lmargin) {
     return imax(0, pos_cur - lmargin);


@@ -102,7 +44,7 @@ int jumpnrun_level_assert_left_side(jumpnrun_game_state const *state) {
     return pos_cur - (BADGE_DISPLAY_WIDTH - rmargin);
   }
 
     return pos_cur - (BADGE_DISPLAY_WIDTH - rmargin);
   }
 

-  return state->left;
+  return state->screen_left;

 }
 
 static int jumpnrun_bsearch_tile(jumpnrun_level const *lv, jumpnrun_game_state const *state) {
 }
 
 static int jumpnrun_bsearch_tile(jumpnrun_level const *lv, jumpnrun_game_state const *state) {


@@ -112,7 +54,7 @@ static int jumpnrun_bsearch_tile(jumpnrun_level const *lv, jumpnrun_game_state c
   while(len > 0) {
     int mid = front + len / 2;
 
   while(len > 0) {
     int mid = front + len / 2;
 

-    if(fixed_point_lt(tile_right(&lv->tiles[mid]), FIXED_INT(state->left - JUMPNRUN_MAX_SPAWN_MARGIN))) {
+    if(fixed_point_lt(tile_right(&lv->tiles[mid]), FIXED_INT(state->screen_left - JUMPNRUN_MAX_SPAWN_MARGIN))) {

       front = mid + 1;
       len -= len / 2 + 1;
     } else {
       front = mid + 1;
       len -= len / 2 + 1;
     } else {


@@ -130,19 +72,23 @@ jumpnrun_tile_range jumpnrun_visible_tiles(jumpnrun_level const *lv,
   r.first = jumpnrun_bsearch_tile(lv, state);
 
   for(r.last = r.first;
   r.first = jumpnrun_bsearch_tile(lv, state);
 
   for(r.last = r.first;

-      r.last < lv->header.tile_count && lv->tiles[r.last].pos.x * JUMPNRUN_TILE_PIXEL_WIDTH < state->left + BADGE_DISPLAY_WIDTH + JUMPNRUN_MAX_SPAWN_MARGIN;
+      r.last < lv->header.tile_count && lv->tiles[r.last].pos.x * JUMPNRUN_TILE_PIXEL_WIDTH < state->screen_left + BADGE_DISPLAY_WIDTH + JUMPNRUN_MAX_SPAWN_MARGIN;

       ++r.last)
     ;
 
   return r;
 }
 
       ++r.last)
     ;
 
   return r;
 }
 

+void jumpnrun_apply_gravity(vec2d *inertia) {
+  *inertia = vec2d_add(*inertia, gravity());
+}
+

 void jumpnrun_passive_movement(vec2d *inertia)
 {
 void jumpnrun_passive_movement(vec2d *inertia)
 {

-  *inertia = vec2d_add(*inertia, gravity);
+  jumpnrun_apply_gravity(inertia);

 
 

-  inertia->x = fixed_point_min(fixed_point_max(fixed_point_neg(move_max.x), inertia->x), move_max.x);
-  inertia->y = fixed_point_min(fixed_point_max(fixed_point_neg(move_max.y), inertia->y), move_max.y);
+  inertia->x = fixed_point_min(fixed_point_max(fixed_point_neg(move_max().x), inertia->x), move_max().x);
+  inertia->y = fixed_point_min(fixed_point_max(fixed_point_neg(move_max().y), inertia->y), move_max().y);

 }
 
 static void jumpnrun_apply_movement(jumpnrun_level      const *lv,
 }
 
 static void jumpnrun_apply_movement(jumpnrun_level      const *lv,


@@ -153,49 +99,51 @@ static void jumpnrun_apply_movement(jumpnrun_level      const *lv,
          (BADGE_EVENT_KEY_LEFT |
           BADGE_EVENT_KEY_RIGHT)) {
   case BADGE_EVENT_KEY_LEFT:
          (BADGE_EVENT_KEY_LEFT |
           BADGE_EVENT_KEY_RIGHT)) {
   case BADGE_EVENT_KEY_LEFT:

-    //    state->player.inertia.x = state->player.touching_ground ? fixed_point_sub(state->player.inertia.x, accel_horiz) : fixed_point_neg(speed_jump_x);
-    state->player.inertia.x = fixed_point_sub(state->player.inertia.x, accel_horiz);
-    state->player.anim_direction = BADGE_BLT_MIRRORED;
+    //    state->player.base.inertia.x = state->player.touching_ground ? fixed_point_sub(state->player.base.inertia.x, accel_horiz()) : fixed_point_neg(speed_jump_x());
+    state->player.base.inertia.x = fixed_point_sub(state->player.base.inertia.x, accel_horiz());
+    state->player.base.flags |= JUMPNRUN_MOVEABLE_MIRRORED;

     break;
   case BADGE_EVENT_KEY_RIGHT:
     break;
   case BADGE_EVENT_KEY_RIGHT:

-    //    state->player.inertia.x = state->player.touching_ground ? fixed_point_add(state->player.inertia.x, accel_horiz) : speed_jump_x;
-    state->player.inertia.x = fixed_point_add(state->player.inertia.x, accel_horiz);
-    state->player.anim_direction = 0;
+    //    state->player.base.inertia.x = state->player.touching_ground ? fixed_point_add(state->player.base.inertia.x, accel_horiz()) : speed_jump_x();
+    state->player.base.inertia.x = fixed_point_add(state->player.base.inertia.x, accel_horiz());
+    state->player.base.flags &= ~JUMPNRUN_MOVEABLE_MIRRORED;

     break;
   default:
     break;
   default:

-    if(state->player.touching_ground) {
-      state->player.inertia.x = fixed_point_mul(state->player.inertia.x, drag_factor);
+    if(jumpnrun_moveable_touching_ground(&state->player.base)) {
+      state->player.base.inertia.x = fixed_point_mul(state->player.base.inertia.x, drag_factor());

     } //else {
     } //else {

-      //state->player.inertia.x = FIXED_INT(0);
+      //state->player.base.inertia.x = FIXED_INT(0);

     //}
 
     break;
   }
 
     //}
 
     break;
   }
 

-  if(state->player.jumpable_frames == 0) {
+  if(state->player.base.jumpable_frames == 0) {

     // intentionally left blank.
   } else if(badge_event_current_input_state() & BADGE_EVENT_KEY_BTN_A) {
     // intentionally left blank.
   } else if(badge_event_current_input_state() & BADGE_EVENT_KEY_BTN_A) {

-    state->player.inertia.y = fixed_point_sub(state->player.inertia.y, accel_vert);
-    --state->player.jumpable_frames;
+    state->player.base.inertia.y = fixed_point_sub(state->player.base.inertia.y, accel_vert());
+    --state->player.base.jumpable_frames;

   } else {
   } else {

-    state->player.jumpable_frames = 0;
+    state->player.base.jumpable_frames = 0;

   }
 
   }
 

-  jumpnrun_passive_movement(&state->player.inertia);
+  jumpnrun_passive_movement(&state->player.base.inertia);

 
 

-  vec2d new_pos = vec2d_add(state->player.current_box.pos, state->player.inertia);
+  vec2d new_pos = vec2d_add(state->player.base.hitbox.pos, state->player.base.inertia);

 
 

-  if(fixed_point_lt(new_pos.x, FIXED_INT(state->left))) {
-    new_pos.x = FIXED_INT(state->left);
-    state->player.inertia.x = FIXED_INT(0);
+  if(fixed_point_lt(new_pos.x, FIXED_INT(state->screen_left))) {
+    new_pos.x = FIXED_INT(state->screen_left);
+    state->player.base.inertia.x = FIXED_INT(0);

   }
 
   }
 

-  *inertia_mod = state->player.inertia;
-  bool killed = collisions_tiles_displace(&new_pos, &state->player, lv, tilerange, inertia_mod);
-  state->player.inertia = *inertia_mod;
+  *inertia_mod = state->player.base.inertia;
+  bool killed = collisions_tiles_displace(&new_pos, &state->player.base, lv, tilerange, inertia_mod);
+  state->player.base.inertia = *inertia_mod;

 
 

-  if(killed || fixed_point_gt(state->player.current_box.pos.y, FIXED_INT(BADGE_DISPLAY_HEIGHT))) {
-    state->status = JUMPNRUN_DEAD;
+  if(fixed_point_gt(rectangle_top(&state->player.base.hitbox), FIXED_INT(BADGE_DISPLAY_HEIGHT))) {
+    jumpnrun_player_despawn(&state->player);
+  } else if(killed) {
+    jumpnrun_player_kill   (&state->player);

   }
 }
 
   }
 }
 


@@ -203,153 +151,106 @@ void jumpnrun_level_tick(jumpnrun_level      *lv,
                          jumpnrun_game_state *state)
 {
   jumpnrun_tile_range tilerange = jumpnrun_visible_tiles(lv, state);
                          jumpnrun_game_state *state)
 {
   jumpnrun_tile_range tilerange = jumpnrun_visible_tiles(lv, state);

-  vec2d inertia_mod = state->player.inertia;
+  vec2d inertia_mod = state->player.base.inertia;

 
 

-  jumpnrun_apply_movement(lv, &tilerange, state, &inertia_mod);
-  state->left = jumpnrun_level_assert_left_side(state);
+  if(jumpnrun_player_alive(&state->player)) {
+    jumpnrun_apply_movement(lv, &tilerange, state, &inertia_mod);
+  }

 
 

-  if(state->player.tick_minor == 0) {
-    badge_framebuffer fb;
-    badge_framebuffer_clear(&fb);
+  state->screen_left = jumpnrun_level_assert_left_side(state);

 
 

-    for(size_t tile = tilerange.first; tile < tilerange.last; ++tile) {
-      badge_framebuffer_blt(&fb,
-                            fixed_point_cast_int(tile_left(&lv->tiles[tile])) - state->left,
-                            fixed_point_cast_int(tile_top (&lv->tiles[tile])),
-                            &tile_type(&lv->tiles[tile])->sprite,
-                            0);
+  if(state->tick == 0) {
+    badge_framebuffer fb = { { { 0 } } };
+
+    for(uint16_t tile = tilerange.first; tile < tilerange.last; ++tile) {
+      jumpnrun_render_tile(&fb, state, &lv->tiles[tile]);

     }
 
     }
 

-    for(size_t item = 0; item < lv->header.item_count; ++item) {
+    for(uint16_t item = 0; item < lv->header.item_count; ++item) {

       jumpnrun_item *item_obj = &lv->items[item];
 
       if(item_obj->flags & JUMPNRUN_ITEM_COLLECTED) {
         continue;
       }
 
       jumpnrun_item *item_obj = &lv->items[item];
 
       if(item_obj->flags & JUMPNRUN_ITEM_COLLECTED) {
         continue;
       }
 

-      int screenpos = fixed_point_cast_int(item_obj->pos.x) - state->left;
+      int screenpos = fixed_point_cast_int(item_obj->pos.x) - state->screen_left;

       if(screenpos > -item_obj->type->sprite.width &&
          screenpos < BADGE_DISPLAY_WIDTH) {
         rectangle item_rect = rect_from_item(item_obj);
 
       if(screenpos > -item_obj->type->sprite.width &&
          screenpos < BADGE_DISPLAY_WIDTH) {
         rectangle item_rect = rect_from_item(item_obj);
 

-        if(rectangle_intersect(&state->player.current_box, &item_rect)) {
+        if(rectangle_intersect(&state->player.base.hitbox, &item_rect)) {

           item_obj->type->on_collect(item_obj, state, lv);
         }
 
           item_obj->type->on_collect(item_obj, state, lv);
         }
 

-        badge_framebuffer_blt(&fb,
-                              screenpos,
-                              fixed_point_cast_int(item_obj->pos.y),
-                              &item_obj->type->sprite,
-                              0);
+        jumpnrun_render_item(&fb, state, item_obj);

       }
     }
 
       }
     }
 

-    for(size_t shot_ix = 0; shot_ix < JUMPNRUN_MAX_SHOTS; ++shot_ix) {
+    for(uint16_t shot_ix = 0; shot_ix < JUMPNRUN_MAX_SHOTS; ++shot_ix) {

       jumpnrun_shot *shot = &state->shots[shot_ix];
       jumpnrun_shot *shot = &state->shots[shot_ix];

-
+      jumpnrun_shot_process(shot);

       if(jumpnrun_shot_spawned(shot)) {
       if(jumpnrun_shot_spawned(shot)) {

-        rectangle_move_rel(&shot->current_box, shot->inertia);
-        shot->inertia = vec2d_add(shot->inertia, gravity);
-
-        if(fixed_point_gt(rectangle_top(&shot->current_box), FIXED_INT(BADGE_DISPLAY_HEIGHT))) {
-          jumpnrun_shot_despawn(shot);
-        }
-
-        /* show every position twice, because LCD switching time. This makes the shots more
-         * visible on the nokia lcds.
-         */
-        badge_framebuffer_blt(&fb,
-                              fixed_point_cast_int(shot->old_box.pos.x) - state->left,
-                              fixed_point_cast_int(shot->old_box.pos.y),
-                              &anim_sickle[shot->tick / JUMPNRUN_SHOT_TICKS_PER_FRAME],
-                              fixed_point_lt(shot->inertia.x, FIXED_INT(0)) ? BADGE_BLT_MIRRORED : 0);
-        badge_framebuffer_blt(&fb,
-                              fixed_point_cast_int(shot->current_box.pos.x) - state->left,
-                              fixed_point_cast_int(shot->current_box.pos.y),
-                              &anim_sickle[shot->tick / JUMPNRUN_SHOT_TICKS_PER_FRAME],
-                              fixed_point_lt(shot->inertia.x, FIXED_INT(0)) ? BADGE_BLT_MIRRORED : 0);
-
-        shot->old_box = shot->current_box;
-
-        ++shot->tick;
-        if(shot->tick == ARRAY_SIZE(anim_sickle) * JUMPNRUN_SHOT_TICKS_PER_FRAME) {
-          shot->tick = 0;
-        }
+        jumpnrun_render_shot(&fb, state, shot);

       }
     }
 
       }
     }
 

-    for(size_t enemy_ix = 0; enemy_ix < lv->header.enemy_count; ++enemy_ix) {
+    for(uint16_t enemy_ix = 0; enemy_ix < lv->header.enemy_count; ++enemy_ix) {

       jumpnrun_enemy *enemy = &lv->enemies[enemy_ix];
       jumpnrun_process_enemy(enemy, &fb, state, lv, &tilerange, &inertia_mod);
     }
 
       jumpnrun_enemy *enemy = &lv->enemies[enemy_ix];
       jumpnrun_process_enemy(enemy, &fb, state, lv, &tilerange, &inertia_mod);
     }
 

-    badge_framebuffer_blt(&fb,
-                          fixed_point_cast_int(state->player.current_box.pos.x) - state->left,
-                          fixed_point_cast_int(state->player.current_box.pos.y),
-                          &anim_hacker[state->player.anim_frame],
-                          state->player.anim_direction);
+    if(jumpnrun_player_alive(&state->player)) {
+      jumpnrun_render_player(&fb, state);
+      jumpnrun_player_advance_animation(&state->player);
+    } else if(jumpnrun_moveable_finished_dying(&state->player.base)) {
+      jumpnrun_player_despawn(&state->player);
+    } else if(jumpnrun_moveable_dying(&state->player.base)) {
+      jumpnrun_render_splosion(&fb, state, &state->player.base);
+      state->player.base.tick_minor += JUMPNRUN_STATE_TICKS_PER_FRAME;
+    }

 
     badge_framebuffer_flush(&fb);
 
 
     badge_framebuffer_flush(&fb);
 

-    if(!state->player.touching_ground) {
-      state->player.anim_frame = 2;
-    } else if(fixed_point_gt(fixed_point_abs(state->player.inertia.x), FIXED_POINT(0, 200))) {
-      state->player.anim_frame = (state->player.anim_frame + 1) % ARRAY_SIZE(anim_hacker);
+    if(!jumpnrun_moveable_touching_ground(&state->player.base)) {
+      state->player.base.anim_frame = 2;
+    } else if(fixed_point_gt(fixed_point_abs(state->player.base.inertia.x), FIXED_POINT(0, 200))) {
+      state->player.base.anim_frame = (state->player.base.anim_frame + 1) % JUMPNRUN_PLAYER_FRAMES;

     } else {
     } else {

-      state->player.anim_frame = 0;
+      state->player.base.anim_frame = 0;

     }
   } else {
     }
   } else {

-    for(size_t shot_ix = 0; shot_ix < JUMPNRUN_MAX_SHOTS; ++shot_ix) {
-      jumpnrun_shot *shot = &state->shots[shot_ix];
-
-      if(jumpnrun_shot_spawned(shot)) {
-        rectangle_move_rel(&shot->current_box, shot->inertia);
-        shot->inertia = vec2d_add(shot->inertia, gravity);
-
-        if(fixed_point_gt(rectangle_top(&shot->current_box), FIXED_INT(BADGE_DISPLAY_HEIGHT))) {
-          jumpnrun_shot_despawn(shot);
-        }
-
-        ++shot->tick;
-        if(shot->tick == ARRAY_SIZE(anim_sickle) * JUMPNRUN_SHOT_TICKS_PER_FRAME) {
-          shot->tick = 0;
-        }
-      }
+    for(uint16_t shot_ix = 0; shot_ix < JUMPNRUN_MAX_SHOTS; ++shot_ix) {
+      jumpnrun_shot_process(&state->shots[shot_ix]);

     }
 
     }
 

-    for(size_t enemy_ix = 0; enemy_ix < lv->header.enemy_count; ++enemy_ix) {
+    for(uint16_t enemy_ix = 0; enemy_ix < lv->header.enemy_count; ++enemy_ix) {

       jumpnrun_enemy *enemy = &lv->enemies[enemy_ix];
       jumpnrun_process_enemy(enemy, NULL, state, lv, &tilerange, &inertia_mod);
     }
   }
 
       jumpnrun_enemy *enemy = &lv->enemies[enemy_ix];
       jumpnrun_process_enemy(enemy, NULL, state, lv, &tilerange, &inertia_mod);
     }
   }
 

-  state->player.inertia = inertia_mod;
-  ++state->player.tick_minor;
-  if(state->player.tick_minor == 3) {
-    state->player.tick_minor = 0;
+  state->player.base.inertia = inertia_mod;
+  ++state->tick;
+  if(state->tick == JUMPNRUN_STATE_TICKS_PER_FRAME) {
+    state->tick = 0;

   }
 }
 
   }
 }
 

-uint8_t jumpnrun_play(char const *lvname) {
+uint8_t jumpnrun_play_level(char const *lvname) {

   jumpnrun_level lv;
 
   JUMPNRUN_LEVEL_LOAD(lv, lvname);
 
   jumpnrun_game_state gs;
   jumpnrun_level lv;
 
   JUMPNRUN_LEVEL_LOAD(lv, lvname);
 
   jumpnrun_game_state gs;

-  memset(&gs, 0, sizeof(gs));

 
 

-  for(gs.lives = 3; gs.status != JUMPNRUN_WON && gs.lives != 0; --gs.lives) {
-    gs.status = JUMPNRUN_PLAYING;
-    gs.left = 0;
-    memset(&gs.player, 0, sizeof(gs.player));
-    gs.player.current_box = rectangle_new(lv.start_pos,
-                                          hacker_extents());
+  jumpnrun_game_state_init(&gs, &lv);

 
 

-    for(size_t i = 0; i < lv.header.enemy_count; ++i) {
-      lv.enemies[i].flags = 0;
-    }
+  do {
+    jumpnrun_show_lives_screen(&gs);
+    jumpnrun_game_state_respawn(&gs, &lv);

 
 

-    while(gs.status == JUMPNRUN_PLAYING) {
+    while((gs.player.base.flags & JUMPNRUN_PLAYER_DEAD) == 0 &&
+          (gs.            flags & JUMPNRUN_STATE_WON  ) == 0) {

       badge_event_t ev = badge_event_wait();
 
       switch(badge_event_type(ev)) {
       badge_event_t ev = badge_event_wait();
 
       switch(badge_event_type(ev)) {


@@ -359,8 +260,8 @@ uint8_t jumpnrun_play(char const *lvname) {
         uint8_t new_state = badge_event_new_input_state(ev);
         uint8_t new_buttons = new_state & (old_state ^ new_state);
 
         uint8_t new_state = badge_event_new_input_state(ev);
         uint8_t new_buttons = new_state & (old_state ^ new_state);
 

-        if((new_buttons & BADGE_EVENT_KEY_BTN_A) && gs.player.touching_ground) {
-          gs.player.jumpable_frames = 12;
+        if((new_buttons & BADGE_EVENT_KEY_BTN_A) && jumpnrun_moveable_touching_ground(&gs.player.base)) {
+          gs.player.base.jumpable_frames = 12;

         }
 
         if((new_buttons & BADGE_EVENT_KEY_BTN_B)) {
         }
 
         if((new_buttons & BADGE_EVENT_KEY_BTN_B)) {


@@ -382,7 +283,17 @@ uint8_t jumpnrun_play(char const *lvname) {
       }
       }
     }
       }
       }
     }

+  } while((gs.flags & JUMPNRUN_STATE_WON) == 0 && gs.player.lives-- != 0);
+
+  if(gs.flags & JUMPNRUN_STATE_WON) {
+    jumpnrun_show_you_rock();
+    return JUMPNRUN_WON;
+  }
+
+  if(++gs.player.lives == 0) {
+    jumpnrun_show_game_over();
+    return JUMPNRUN_LOST;

   }
 
   }
 

-  return gs.status;
+  return JUMPNRUN_ERROR;

 }
 }