X-Git-Url: https://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fentity.cpp;fp=src%2Fentity.cpp;h=ef9275f41f5f3a05ec975f88d6bdbf9afb7ca46b;hb=cb959294a8271969ddfe411471d7f04e82c4788a;hp=0000000000000000000000000000000000000000;hpb=09b5fd4523246deace5f52eed03623d150b76913;p=blank.git

diff --git a/src/entity.cpp b/src/entity.cpp
new file mode 100644
index 0000000..ef9275f
--- /dev/null
+++ b/src/entity.cpp
@@ -0,0 +1,57 @@
+#include "entity.hpp"
+
+#include <glm/gtx/transform.hpp>
+
+
+namespace blank {
+
+Entity::Entity()
+: velocity()
+, position()
+, rotation(1.0f)
+, transform(1.0f)
+, dirty(false) {
+
+}
+
+
+void Entity::Velocity(const glm::vec3 &vel) {
+	velocity = vel;
+}
+
+void Entity::Position(const glm::vec3 &pos) {
+	position = pos;
+	dirty = true;
+}
+
+void Entity::Move(const glm::vec3 &delta) {
+	position += delta;
+	dirty = true;
+}
+
+void Entity::Rotation(const glm::mat4 &rot) {
+	rotation = rot;
+}
+
+const glm::mat4 &Entity::Transform() const {
+	if (dirty) {
+		transform = glm::translate(position) * rotation;
+		dirty = false;
+	}
+	return transform;
+}
+
+Ray Entity::Aim() const {
+	Transform();
+	glm::vec4 from = transform * glm::vec4(0.0f, 0.0f, 1.0f, 1.0f);
+	from /= from.w;
+	glm::vec4 to = transform * glm::vec4(0.0f, 0.0f, -1.0f, 1.0f);
+	to /= to.w;
+	return Ray{ glm::vec3(from), glm::normalize(glm::vec3(to - from)) };
+}
+
+void Entity::Update(int dt) {
+	Move(velocity * float(dt));
+}
+
+}