Add hurt, die animation when taking damage

game/systems/s_entity.c

@@ -5,6 +5,7 @@
 #include "../input.h"
 #include "../pathfinding.h"
 #include "../entity_factory.h"
+#include "../utils.h"
 
 #include <math.h>
 #include <raymath.h>
@@ -144,16 +145,22 @@ void entityUpdateKinematic(ecs_iter_t *it) {
         position[i] = Vector2Add(position[i], Vector2Scale(velocity[i], dt));
     }
 }
-void entityUpdatePhysics(ecs_iter_t *it) {
+void entityUpdate(ecs_iter_t *it) {
     Game *game = ecs_singleton_get_mut(ECS, Game);
     Position *position = ecs_field(it, Position, 1);
     HitBox *hitbox = ecs_field(it, HitBox, 2);
     Velocity *velocity = ecs_field(it, Velocity, 3);
-    SpatialGridID *spatialID = ecs_field(it, SpatialGridID, 4);
+    Unit *unit = ecs_field(it, Unit, 4);
+    Owner *owner = ecs_field(it, Owner, 5);
+    SpatialGridID *spatialID = ecs_field(it, SpatialGridID, 6);
 
     f32 dt = it->delta_time;
 
     for (i32 i = 0; i < it->count; i++) {
+        // Attack thingies
+        unit[i].attackElapsed += dt;
+        bool canAttack = unit[i].attackElapsed > unit[i].attackCooldown;
+
         // Only update "stationary" entities
         bool stationary = Vector2Length(velocity[i]) <= 0.2f;
         Rectangle bounds = entityTransformHitBox(position[i], hitbox[i]);
@@ -173,9 +180,35 @@ void entityUpdatePhysics(ecs_iter_t *it) {
             if (!CheckCollisionRecs(bounds, otherBounds)) {
                 continue;
             }
+
+            // Attack update
+            if (canAttack && ecs_has(ECS, other, Health) && ecs_has(ECS, other, Owner)) {
+                Health *otherHealth = ecs_get_mut(ECS, other, Health);
+                Player otherPlayer = ecs_get(ECS, other, Owner)->player;
+
+                if (otherPlayer != owner[i].player) {
+                    Rectangle collisionRec = GetCollisionRec(bounds, otherBounds);
+                    f32 percentageCovered = (collisionRec.width * collisionRec.height) / (bounds.width * bounds.height);
+
+                    f32 dealDmg = randFloatRange(unit[i].minDamage, unit[i].maxDamage);
+                    f32 multiplier = 1.0f + percentageCovered;
+                    multiplier = Clamp(multiplier, 0.8f, 1.6f);
+
+                    dealDmg *= multiplier;
+
+                    damageEvent(other, (DamageEvent) {
+                        .amount = dealDmg
+                    });
+
+                    canAttack = false;
+                    unit[i].attackElapsed = 0.0f;
+                }
+
+            }
+
+            // Physics update
             slowDown += 0.1f;
             Position dif = Vector2Subtract(otherPos, position[i]);
-            //dif = Vector2Normalize(dif);
             dir = Vector2Add(dir, dif);
         }
 
@@ -270,7 +303,7 @@ void updateBuildingRecruitment(ecs_iter_t *it) {
     }
 }
 
-void renderHealth(ecs_iter_t *it) {
+void renderHealthBar(ecs_iter_t *it) {
     Position *pos = ecs_field(it, Position, 1);
     HitBox *hitbox = ecs_field(it, HitBox, 2);
     Health *health = ecs_field(it, Health, 3);