From 995bbe1acd5eb9e5f8188026a0429c22a6575e1c Mon Sep 17 00:00:00 2001
From: Dominic Masters <dominic@domsplace.com>
Date: Fri, 22 Aug 2025 22:42:38 -0500
Subject: [PATCH] Fixed time.

---
 CMakeLists.txt                  |  4 ++--
 src/display/display.c           |  9 ++++++---
 src/display/mesh/meshrenderer.c |  7 +------
 src/display/mesh/quad.c         | 20 ++++++++++++++++++++
 src/display/mesh/quad.h         |  8 ++++++++
 src/scene/test/scenetest.c      | 12 ++----------
 src/time/CMakeLists.txt         | 15 ++++++++++++++-
 src/time/time.c                 | 30 ++++++++++++++----------------
 src/time/time.h                 | 26 +-------------------------
 9 files changed, 68 insertions(+), 63 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b9596f5..ec3a5d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,8 +10,8 @@ set(CMAKE_C_STANDARD_REQUIRED ON)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules)
 
 if(NOT DEFINED DUSK_TARGET_SYSTEM)
-  # set(DUSK_TARGET_SYSTEM "linux")
-  set(DUSK_TARGET_SYSTEM "psp")
+  set(DUSK_TARGET_SYSTEM "linux")
+  # set(DUSK_TARGET_SYSTEM "psp")
 endif()
 
 # Prep cache
diff --git a/src/display/display.c b/src/display/display.c
index 79fb176..fe34194 100644
--- a/src/display/display.c
+++ b/src/display/display.c
@@ -10,6 +10,8 @@
 #include "display/renderer.h"
 #include "ecs/ecssystem.h"
 
+#include "display/mesh/quad.h"
+
 display_t DISPLAY;
 
 errorret_t displayInit(void) {
@@ -55,7 +57,8 @@ errorret_t displayInit(void) {
     glEnableClientState(GL_VERTEX_ARRAY);
   #endif
 
-  // For now, we just return an OK error.
+  quadInit();
+
   errorOk();
 }
 
@@ -73,9 +76,9 @@ errorret_t displayUpdate(void) {
       }
     }
 
-    // Set viewport size.
+    // TODO: move to framebuffer component
     int32_t windowWidth, windowHeight;
-    // SDL_GetWindowSize(DISPLAY.window, &windowWidth, &windowHeight);
+    SDL_GetWindowSize(DISPLAY.window, &windowWidth, &windowHeight);
     glViewport(0, 0, windowWidth, windowHeight);
   #endif
 
diff --git a/src/display/mesh/meshrenderer.c b/src/display/mesh/meshrenderer.c
index 912374c..6b672cd 100644
--- a/src/display/mesh/meshrenderer.c
+++ b/src/display/mesh/meshrenderer.c
@@ -6,7 +6,7 @@
  */
 
 #include "meshrenderer.h"
-#include "scene/node.h"
+#include "time/time.h"
 
 meshrenderer_t MESH_RENDERER_DATA[ECS_ENTITY_COUNT_MAX] = { 0 };
 ecscomponent_t MESH_RENDERER_COMPONENT = ecsComponentInit(
@@ -20,12 +20,7 @@ ecscomponent_t MESH_RENDERER_COMPONENT = ecsComponentInit(
 
 void meshRendererDraw(const ecsid_t id) {
   if(!meshRendererHas(id)) return;
-
   meshrenderer_t *renderer = &MESH_RENDERER_DATA[id];
   if(!renderer->mesh) return;
-
-  node_t *node = nodeGet(id);
-  nodeMatrixUpdate(id);
-
   meshDraw(renderer->mesh, 0, -1);
 }
\ No newline at end of file
diff --git a/src/display/mesh/quad.c b/src/display/mesh/quad.c
index acf02f8..6fef521 100644
--- a/src/display/mesh/quad.c
+++ b/src/display/mesh/quad.c
@@ -8,6 +8,26 @@
 #include "quad.h"
 #include "assert/assert.h"
 
+mesh_t QUAD_MESH_SIMPLE;
+meshvertex_t QUAD_MESH_SIMPLE_VERTICES[QUAD_VERTEX_COUNT] = {
+  { { 0xFF, 0xFF, 0xFF, 0xFF }, { 0.0f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
+  { { 0xFF, 0xFF, 0xFF, 0xFF }, { 1.0f, 0.0f }, { 1.0f, 0.0f, 0.0f } },
+  { { 0xFF, 0xFF, 0xFF, 0xFF }, { 1.0f, 1.0f }, { 1.0f, 1.0f, 0.0f } },
+  
+  { { 0xFF, 0xFF, 0xFF, 0xFF }, { 0.0f, 0.0f }, { 0.0f, 0.0f, 0.0f } },
+  { { 0xFF, 0xFF, 0xFF, 0xFF }, { 1.0f, 1.0f }, { 1.0f, 1.0f, 0.0f } },
+  { { 0xFF, 0xFF, 0xFF, 0xFF }, { 0.0f, 1.0f }, { 0.0f, 1.0f, 0.0f } }
+};
+
+void quadInit() {
+  meshInit(
+    &QUAD_MESH_SIMPLE,
+    QUAD_PRIMITIVE_TYPE,
+    QUAD_VERTEX_COUNT,
+    QUAD_MESH_SIMPLE_VERTICES
+  );
+}
+
 void quadBuffer(
   meshvertex_t *vertices,
   const float_t minX,
diff --git a/src/display/mesh/quad.h b/src/display/mesh/quad.h
index 2bacfb5..860588a 100644
--- a/src/display/mesh/quad.h
+++ b/src/display/mesh/quad.h
@@ -11,6 +11,14 @@
 #define QUAD_VERTEX_COUNT 6
 #define QUAD_PRIMITIVE_TYPE MESH_PRIMITIVE_TRIANGLES
 
+extern mesh_t QUAD_MESH_SIMPLE;
+extern meshvertex_t QUAD_MESH_SIMPLE_VERTICES[QUAD_VERTEX_COUNT];
+
+/**
+ * Initializes the quad mesh.
+ */
+void quadInit();
+
 /**
  * Buffers a quad into the provided vertex array.
  * 
diff --git a/src/scene/test/scenetest.c b/src/scene/test/scenetest.c
index 938e1d0..2f6c47a 100644
--- a/src/scene/test/scenetest.c
+++ b/src/scene/test/scenetest.c
@@ -10,17 +10,9 @@
 #include "display/camera.h"
 #include "display/display.h"
 #include "display/mesh/meshrenderer.h"
-
-mesh_t mesh;
-meshvertex_t triangle[3] = {
-  {{255, 0, 0, 255}, {0.0f, 0.0f}, {1.0f, 0.0f}}, // Vertex 1
-  {{0, 255, 0, 255}, {1.0f, 0.0f}, {-1.0f, 0.0f}}, // Vertex 2
-  {{0, 0, 255, 255}, {0.5f, 1.0f}, {0, 2.0f}} // Vertex 3
-};
+#include "display/mesh/quad.h"
 
 void sceneTestAdd(void) {
-  meshInit(&mesh, MESH_PRIMITIVE_TRIANGLES, 3, triangle);
-
   // Initialize the entity with a camera component
   ecsid_t camera = ecsEntityAdd();
   node_t *node = nodeAdd(camera);
@@ -39,5 +31,5 @@ void sceneTestAdd(void) {
   ecsid_t cube = ecsEntityAdd();
   node = nodeAdd(cube);
   meshrenderer_t *renderer = meshRendererAdd(cube);
-  renderer->mesh = &mesh;
+  renderer->mesh = &QUAD_MESH_SIMPLE;
 }
\ No newline at end of file
diff --git a/src/time/CMakeLists.txt b/src/time/CMakeLists.txt
index d8fd698..4db9ca4 100644
--- a/src/time/CMakeLists.txt
+++ b/src/time/CMakeLists.txt
@@ -7,4 +7,17 @@
 target_sources(${DUSK_TARGET_NAME}
   PRIVATE
     time.c
-)
\ No newline at end of file
+)
+
+# Compiler defs
+if(DUSK_TARGET_SYSTEM STREQUAL "linux")
+  target_compile_definitions(${DUSK_TARGET_NAME}
+    PRIVATE
+      DUSK_TIME_SDL2=1
+  )
+elseif(DUSK_TARGET_SYSTEM STREQUAL "psp")
+  target_compile_definitions(${DUSK_TARGET_NAME}
+    PRIVATE
+      DUSK_TIME_FIXED=1
+  )
+endif()
\ No newline at end of file
diff --git a/src/time/time.c b/src/time/time.c
index 66416c2..05e455b 100644
--- a/src/time/time.c
+++ b/src/time/time.c
@@ -9,33 +9,31 @@
 #include "util/memory.h"
 #include "assert/assert.h"
 
+#if DUSK_TIME_SDL2
+  #include <SDL2/SDL.h>
+#endif
+
 dusktime_t TIME;
 
 void timeInit(void) {
   memoryZero(&TIME, sizeof(TIME));
 
   // Set these to something non-zero.
-  TIME.lastTick = DUSK_TIME_STEP;
-  TIME.delta = TIME.realDelta = DUSK_TIME_STEP;
-  TIME.realTime = TIME.time = DUSK_TIME_STEP * 2;
+  TIME.time = DUSK_TIME_STEP;
+  TIME.delta = DUSK_TIME_STEP;
 }
 
 void timeUpdate(void) {
-  TIME.realDelta = timeDeltaGet();
-
-  #if DUSK_TIME_DYNAMIC
-    TIME.delta = TIME.realDelta;
+  float_t delta;
+  #if DUSK_TIME_SDL2
+    delta = (float_t)SDL_GetTicks() / 1000.0f - TIME.time;
+  #elif DUSK_TIME_FIXED
+    delta = DUSK_TIME_PLATFORM_STEP;
   #else
-    TIME.delta = DUSK_TIME_PLATFORM_STEP;
+    #error "No time platform defined"
   #endif
-  
+
+  TIME.delta = delta;
   assertTrue(TIME.delta >= 0.0f, "Time delta is negative");
-  assertTrue(TIME.realDelta >= 0.0f, "Real time delta is negative");
-
   TIME.time += TIME.delta;
-  TIME.realTime += TIME.realDelta;
-}
-
-float_t timeDeltaGet(void) {
-  return 0.1f;
 }
\ No newline at end of file
diff --git a/src/time/time.h b/src/time/time.h
index 7c878c8..36a0784 100644
--- a/src/time/time.h
+++ b/src/time/time.h
@@ -10,26 +10,13 @@
 
 typedef struct {
   float_t delta;
-  float_t lastTick;
   float_t time;
-  float_t realDelta;
-  float_t realTime;
 } dusktime_t;
 
 extern dusktime_t TIME;
 
 #define DUSK_TIME_STEP (1.0f / 60.0f) // Default to 60FPS
 
-#ifndef DUSK_TIME_DYNAMIC
-  #define DUSK_TIME_DYNAMIC 1
-#endif
-
-#if DUSK_TIME_DYNAMIC == 0
-  #ifndef DUSK_TIME_PLATFORM_STEP 
-    #define DUSK_TIME_PLATFORM_STEP DUSK_TIME_STEP
-  #endif
-#endif
-
 /**
  * Initializes the time system.
  */
@@ -38,15 +25,4 @@ void timeInit(void);
 /**
  * Updates the time system
  */
-void timeUpdate(void);
-
-#if DUSK_TIME_DYNAMIC == 1
-  /**
-   * Gets the time delta since the last frame, in seconds. Tied to the 
-   * platform.
-   * 
-   * This will only get called once per gameUpdate.
-   */
-  float_t timeDeltaGet(void);
-#endif
-
+void timeUpdate(void);
\ No newline at end of file