Initial commit

1 files changed, 298 insertions, 0 deletions

diff --git a/player.c b/player.c
new file mode 100644
index 0000000..e05933d
--- /dev/null
+++ b/player.c
@@ -0,0 +1,298 @@
+#include "game.h"
+#include <string.h>
+
+void update_score(void)
+{
+  char buffer[48];
+  struct Player *p1 = &game->players[0], *p2 = &game->players[1];
+
+  sprintf(buffer, "%s: %d - %s: %d", p1->name, p1->score, p2->name, p2->score);
+  set_text(game->score, buffer);
+
+  p1->life = p2->life = 12;
+}
+
+static const float reload_time = 2.0f;
+
+static void player_on_collision(struct Entity *this, struct Entity *other)
+{
+  struct Player *p = (struct Player *)this - offsetof(struct Player, entity);
+
+  if(other->collidable && this->y <= other->y)
+    {
+      p->entity.i = 0;
+      p->on_ground = true;
+      this->d2y = 0.0f;
+    }
+
+  if(!other->collidable)
+    {
+      struct Bullet *b = (struct Bullet *)other;
+
+      if(b->owner == p)
+	return;
+
+      p->life -= b->damage;
+
+      int i;
+
+      if(p->life > 8)
+	{
+	  i = p->life - 8;
+	  p->hearts[2]->src_rect.x = 16 * (4 - i);
+	  p->hearts[1]->src_rect.x = 0;
+	  p->hearts[0]->src_rect.x = 0;
+
+	}
+      else if(p->life > 4)
+	{
+	  i = p->life - 4;
+	  p->hearts[2]->src_rect.x = 64;
+	  p->hearts[1]->src_rect.x = 16 * (4 - i);
+	  p->hearts[0]->src_rect.x = 0;
+	}
+      else
+	{
+	  i = p->life;
+	  p->hearts[2]->src_rect.x = 64;
+	  p->hearts[1]->src_rect.x = 64;
+	  p->hearts[0]->src_rect.x = 16 * (4 - i);
+	}
+
+      if(p->life <= 0)
+	{
+	  b->owner->score ++;
+
+	  p->hearts[2]->src_rect.x = 0;
+	  p->hearts[1]->src_rect.x = 0;
+	  p->hearts[0]->src_rect.x = 0;
+
+	  update_score();
+	}
+    }
+}
+
+void init_player(struct Player *p, struct PlayerKeys *keys,
+		 float x, float y, const char *name)
+{
+  struct Entity *e;
+  p->keys = *keys;
+  e = &p->entity;
+
+  e->texture = load_texture("resources/cowboy.png");
+  e->use_src_rect = true;
+  e->src_rect.x = 0;
+  e->src_rect.y = 0;
+  e->src_rect.w = 43;
+  e->src_rect.h = 51;
+
+  e->i = 0;
+
+  e->x = x;
+  e->y = y;
+
+  e->collidable = true;
+  e->w = 43;
+  e->h = 55;
+  e->on_collision = player_on_collision;
+
+  p->reloading = false;
+  p->on_ground = false;
+  p->current_gun = REVOLVER;
+  p->life = 12;
+  p->counter = 0;
+
+  p->guns[0] = (struct Gun)
+    {
+      .type = REVOLVER,
+      .angle = 0.0f,
+      .projectiles_per_shot = 1,
+      .cooldown = 0.5f,
+      .ready = true,
+      .sound_effect = game->revolver_sound,
+      .bullets = 6,
+      .max_bullets = 6,
+      .damage = 2,
+    };
+
+  p->guns[1] = (struct Gun)
+    {
+      .type = RIFLE,
+      .angle = 0.0f,
+      .projectiles_per_shot = 1,
+      .cooldown = 1.0f,
+      .ready = true,
+      .sound_effect = game->rifle_sound,
+      .bullets = 5,
+      .max_bullets = 5,
+      .damage = 3,
+    };
+
+  p->guns[2] = (struct Gun)
+    {
+      .type = SHOTGUN,
+      .angle = 5.0f,
+      .projectiles_per_shot = 5,
+      .cooldown = 2.0f,
+      .ready = true,
+      .sound_effect = game->rifle_sound,
+      .bullets = 2,
+      .max_bullets = 2,
+      .damage = 1,
+    };
+
+  if(strlen(name) > 16)
+    die("Player's name is too long: %s", name);
+
+  strcpy(p->name, name);
+}
+
+void update_player(struct Player *p)
+{
+  struct PlayerKeys *k = &p->keys;
+  struct Gun *g = &p->guns[p->current_gun];
+  float dt = game->frame_time;
+
+  // Movement related code
+  if(game->keys[k->left])
+    {
+      p->entity.dx = -300.0f;
+      p->entity.mirror = true;
+
+      p->counter ++;
+
+      if(p->counter % 5 == 0 && p->on_ground)
+	{
+	  p->entity.i ++;
+	  p->entity.i %= 5;
+	}
+    }
+  else if(game->keys[k->right])
+    {
+      p->entity.dx = 300.0f;
+      p->entity.mirror = false;
+
+      p->counter ++;
+
+      if(p->counter % 10 == 0 && p->on_ground)
+	{
+	  p->entity.i ++;
+	  p->entity.i %= 5;
+	}
+    }
+  else
+    {
+      p->counter = 0;
+      p->entity.d2x = -18.0f * p->entity.dx;
+
+      if(p->on_ground)
+	{
+	  p->entity.i = 0;
+	}
+    }
+
+  if(p->entity.y < game->height - p->entity.h)
+    {
+      p->entity.d2y = game->gravity;
+    }
+  else
+    {
+      p->on_ground = true;
+      p->entity.d2y = 0;
+      p->entity.dy = 0;
+      p->entity.y = (game->height - p->entity.h);
+
+      if(p->entity.i == 5)
+	p->entity.i = 0;
+    }
+  if(game->keys[k->jump]
+     && p->on_ground)
+    {
+      p->entity.dy = -700.0f;
+      p->on_ground = false;
+      p->entity.i = 5;
+    }
+
+  p->entity.x += p->entity.dx * dt + (0.5f * p->entity.d2x * dt * dt);
+  p->entity.y += p->entity.dy * dt + (0.5f * p->entity.d2y * dt * dt);
+
+  p->entity.dx += p->entity.d2x * dt;
+  p->entity.dy += p->entity.d2y * dt;
+
+  if(p->entity.x + p->entity.w > game->width)
+    p->entity.x = game->width - p->entity.w;
+  else if(p->entity.x < 0)
+    p->entity.x = 0;
+
+  if(p->entity.y < 0)
+    p->entity.y = 0;
+
+  // Guns related code
+  if(game->keys[k->weaponds[0]])
+    {
+      p->current_gun = REVOLVER;
+      p->reloading = false;
+      p->reload_time = 0.0f;
+
+      p->gun->texture = game->guns[0];
+      SDL_QueryTexture(game->guns[0], NULL, NULL, &p->gun->rect.w, &p->gun->rect.h);
+      p->gun->rect.w *= 2;
+      p->gun->rect.h *= 2;
+    }
+  else if(game->keys[k->weaponds[1]])
+    {
+      p->current_gun = RIFLE;
+      p->reloading = false;
+      p->reload_time = 0.0f;
+
+      p->gun->texture = game->guns[1];
+      SDL_QueryTexture(game->guns[1], NULL, NULL, &p->gun->rect.w, &p->gun->rect.h);
+      p->gun->rect.w *= 2;
+      p->gun->rect.h *= 2;
+    }
+  else if(game->keys[k->weaponds[2]])
+    {
+      p->current_gun = SHOTGUN;
+      p->reloading = false;
+      p->reload_time = 0.0f;
+
+      p->gun->texture = game->guns[2];
+      SDL_QueryTexture(game->guns[2], NULL, NULL, &p->gun->rect.w, &p->gun->rect.h);
+      p->gun->rect.w *= 2;
+      p->gun->rect.h *= 2;
+    }
+
+  // Check & Update gun's cooldown
+  if(!g->ready)
+    {
+      g->cooldown_elapsed += game->frame_time;
+
+      if(g->cooldown_elapsed >= g->cooldown)
+	g->ready = true;
+    }
+
+  if(p->reload_time > 0)
+    p->reload_time -= game->frame_time;
+  if(p->reload_time < 0)
+    p->reload_time = 0.0f;
+
+  if(p->reloading && p->reload_time == 0.0f)
+    {
+      g->bullets = g->max_bullets;
+      p->reloading = false;
+    }
+
+  if(game->keys[k->fire])
+    shoot_bullet(p);
+
+  if(game->keys[k->reload])
+    {
+      p->reloading = true;
+      p->reload_time = reload_time;
+    }
+
+  p->entity.src_rect.x = p->entity.i * 43;
+
+  // Add to game's entity list
+  game->entities[game->num_entities ++] = &p->entity;
+}