Health and dying

1 files changed, 64 insertions, 9 deletions

diff --git a/src/player.odin b/src/player.odin
index 4747e65..592552d 100644
--- a/src/player.odin
+++ b/src/player.odin
@@ -12,17 +12,15 @@ Player_State :: enum {
   Dash,
   Wall_Slide,
   Wall_Jump,
+  Dead,
 }
 
 // there will only ever be one player, so just make it a global :)
 player: struct {
-  body: phys.Body_Handle,
-  sprite: Sprite,
-  gun: struct {
-    sprite: Sprite,
-    kickback: f32,
-  },
-  scarf: Tail(7),
+  health: i16,
+  max_health: i16,
+
+  hit_timestamp: f32,
   jump_buffer: f32,
   coyote_time: f32,
   dash_cooldown: f32,
@@ -33,6 +31,14 @@ player: struct {
   outside_room: bool,
   has_double_jumped: bool,
   fall_height: f32,
+  body: phys.Body_Handle,
+
+  sprite: Sprite,
+  scarf: Tail(7),
+  gun: struct {
+    sprite: Sprite,
+    kickback: f32,
+  },
 
   owns_double_jump: bool,
   owns_dash: bool,
@@ -44,6 +50,7 @@ init_player :: proc() {
     layers = {.Player},
     mask = {.Hard}
   )
+
   player.body = body
 
   init_sprite(&player.sprite, .Player)
@@ -62,6 +69,9 @@ init_player :: proc() {
     color_start = Color {0.18, 0.13, 0.18, 1} * 0.5,
     color_end = {0.18, 0.13, 0.18, 1},
   }
+
+  player.max_health = 10
+  player.health = 10
 }
 
 deinit_player :: proc() {
@@ -211,8 +221,12 @@ _default_state :: proc(dt: f32) {
   if .Down in new_collisions && .Down not_in collisions {
     // just landed
     height := phys.get_position(player.body).y
-    if height - player.fall_height > 16 * 16 {
-      log.info("DEAD")
+
+    distance_fallen := height - player.fall_height
+    if distance_fallen > MAX_SAFE_FALL_HEIGHT {
+      distance_fallen -= MAX_SAFE_FALL_HEIGHT
+      damage := (distance_fallen / MAX_FALL_HEIGHT) * PLAYER_MAX_FALL_DAMAGE
+      player_take_damage(damage, {0, 0})
     }
   }
 
@@ -383,6 +397,7 @@ update_player :: proc(dt: f32) {
   case .Dash:    _dash_state(dt)
   case .Wall_Slide: _wall_slide_state(dt)
   case .Wall_Jump: _wall_jump_state(dt)
+  case .Dead:
   }
 
   pos := phys.get_position(player.body)
@@ -423,6 +438,46 @@ draw_player :: proc() {
   if player.state != .Dash {
     draw_sprite(player.gun.sprite)
   }
+
+  health_bar_size := Vec2{16, 2}
+
+  pos := player.sprite.pos
+  pos.x -= health_bar_size.x / 2
+  pos.y -= 24
+
+  fw.draw_rect(
+    pos - {1, 1},
+    health_bar_size + {2, 2},
+    color = fw.WHITE,
+  )
+
+  fw.draw_progress_bar(
+    pos,
+    health_bar_size,
+    fw.RED,
+    fw.BLACK,
+    f32(player.health) / f32(player.max_health),
+  )
+}
+
+player_take_damage :: proc(#any_int amt: i16, kb_dir: Vec2) {
+  current_time := f32(fw.get_time())
+
+  if current_time - player.hit_timestamp < 0.2 {
+    return
+  }
+
+  player.hit_timestamp = current_time
+
+  player.health -= amt
+  player.health = math.clamp(player.health, 0, player.max_health)
+
+  if player.health == 0 {
+    player.state = .Dead
+  }
+
+  vel := phys.get_velocity(player.body) + kb_dir
+  phys.set_velocity(player.body, vel)
 }
 
 draw_player_fg :: proc() {