Disable old ent code

2026-05-21 10:18:20 -05:00
parent 6502822583
commit efd31237be
30 changed files with 104 additions and 124 deletions
@@ -0,0 +1,96 @@
+/**
+ * Copyright (c) 2026 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "entity/entitymanager.h"
+#include "entity/entity.h"
+#include "entity/component/display/entityposition.h"
+#include "display/framebuffer/framebuffer.h"
+#include "display/screen/screen.h"
+
+void entityCameraInit(const entityid_t ent, const componentid_t comp) {
+  entitycamera_t *cam = (entitycamera_t *)componentGetData(
+    ent, comp, COMPONENT_TYPE_CAMERA
+  );
+  cam->nearClip = 0.1f;
+  cam->farClip = 100.0f;
+  cam->projType = ENTITY_CAMERA_PROJECTION_TYPE_PERSPECTIVE;
+  cam->perspective.fov = glm_rad(45.0f);
+}
+
+void entityCameraGetProjection(
+  const entityid_t ent,
+  const componentid_t comp,
+  mat4 out
+) {
+  entitycamera_t *cam = (entitycamera_t *)componentGetData(
+    ent, comp, COMPONENT_TYPE_CAMERA
+  );
+
+  if(
+    cam->projType == ENTITY_CAMERA_PROJECTION_TYPE_PERSPECTIVE ||
+    cam->projType == ENTITY_CAMERA_PROJECTION_TYPE_PERSPECTIVE_FLIPPED
+  ) {
+    glm_mat4_identity(out);
+    glm_perspective(
+      cam->perspective.fov,
+      SCREEN.aspect,
+      cam->nearClip,
+      cam->farClip,
+      out
+    );
+
+    if(cam->projType == ENTITY_CAMERA_PROJECTION_TYPE_PERSPECTIVE_FLIPPED) {
+      out[1][1] *= -1.0f;
+    }
+  } else if(cam->projType == ENTITY_CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC) {
+    glm_mat4_identity(out);
+    glm_ortho(
+      cam->orthographic.left,
+      cam->orthographic.right,
+      cam->orthographic.top,
+      cam->orthographic.bottom,
+      cam->nearClip,
+      cam->farClip,
+      out
+    );
+  }
+}
+
+entityid_t entityCameraGetCurrent(void) {
+  entityid_t camEnts[ENTITY_COUNT_MAX];
+  componentid_t camComps[ENTITY_COUNT_MAX];
+  entityid_t count = componentGetEntitiesWithComponent(
+    COMPONENT_TYPE_CAMERA, camEnts, camComps
+  );
+  if(count == 0) return ENTITY_COUNT_MAX;
+  return camEnts[0];
+}
+
+void entityCameraGetForward(const entityid_t entityId, vec2 out) {
+  componentid_t posComp = entityGetComponent(entityId, COMPONENT_TYPE_POSITION);
+  entityposition_t *pos = entityPositionGet(entityId, posComp);
+  // View matrix column layout: M[col][row],
+  // forward = {-M[0][2], -M[1][2], -M[2][2]}
+  float_t fx = -pos->worldTransform[0][2];
+  float_t fz = -pos->worldTransform[2][2];
+  float_t len = sqrtf(fx * fx + fz * fz);
+  if(len > 1e-6f) { fx /= len; fz /= len; }
+  out[0] = fx;
+  out[1] = fz;
+}
+
+void entityCameraGetRight(const entityid_t entityId, vec2 out) {
+  componentid_t posComp = entityGetComponent(entityId, COMPONENT_TYPE_POSITION);
+  entityposition_t *pos = entityPositionGet(entityId, posComp);
+  // View matrix column layout: right = {M[0][0], M[1][0], M[2][0]}
+  float_t rx = pos->worldTransform[0][0];
+  float_t rz = pos->worldTransform[2][0];
+  float_t len = sqrtf(rx * rx + rz * rz);
+  if(len > 1e-6f) { rx /= len; rz /= len; }
+  out[0] = rx;
+  out[1] = rz;
+}