From 034ee66224d45188ac7ba38b637ef8fdcf080762 Mon Sep 17 00:00:00 2001
From: Noah Metz <noah@metznet.ca>
Date: Tue, 5 Nov 2024 20:07:11 -0700
Subject: [PATCH] Added highlighted hex

---
 client/shader/hex_highlight.vert |  4 ++--
 client/src/gpu.c                 | 10 ++++++++++
 client/src/main.c                | 18 +++++++++++++++++-
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/client/shader/hex_highlight.vert b/client/shader/hex_highlight.vert
index 45ba1c9..815b5e7 100644
--- a/client/shader/hex_highlight.vert
+++ b/client/shader/hex_highlight.vert
@@ -12,12 +12,12 @@ void main() {
   if(gl_InstanceIndex == 0) {
     hex_index = pc.context.clicked_hex;
     region = pc.context.regions[pc.context.clicked_region];
-    color = vec4(0.3, 0.3, 0.3, 0.3);
+    color = vec4(0.5, 0.5, 0.5, 0.3);
     raise = 0.015;
   } else {
     hex_index = pc.context.hovered_hex;
     region = pc.context.regions[pc.context.hovered_region];
-    color = vec4(0.8, 0.8, 0.8, 0.3);
+    color = vec4(0.25, 0.25, 0.25, 0.3);
     raise = 0.01;
   }
 
diff --git a/client/src/gpu.c b/client/src/gpu.c
index 879043e..36cb795 100644
--- a/client/src/gpu.c
+++ b/client/src/gpu.c
@@ -1292,6 +1292,16 @@ VkResult add_transfer(
   FrameContext* frame = &gpu->frame[frame_index];
   TransferBuffer* transfer = &frame->transfers[frame->transfer_index % 2];
 
+  VkDeviceSize src_offset = 0;
+  for(uint32_t i = 0; i < transfer->count; i++) {
+    if(transfer->infos[i].buffer == buffer && transfer->infos[i].size == size && transfer->infos[i].offset == offset) {
+      memcpy(transfer->mapped + src_offset, data, size);
+      return VK_SUCCESS;
+    } else {
+      src_offset += transfer->infos[i].size;
+    }
+  }
+
   if(transfer->written + size >= transfer->max_size) {
     uint32_t new_size = 2*transfer->max_size;
     while(transfer->written + size >= new_size) {
diff --git a/client/src/main.c b/client/src/main.c
index d3deceb..2e51267 100644
--- a/client/src/main.c
+++ b/client/src/main.c
@@ -288,8 +288,8 @@ VkResult main_thread(ClientContext* context) {
     context->zoom = 0;
     context->cur_spin[0] = 0;
     context->cur_spin[1] = 0;
-    glfwPollEvents();
 
+    glfwPollEvents();
     if((context->key_spin[0] != 0 || context->key_spin[1] != 0 ||
        context->zoom != 0 ||
        context->cur_spin[0] != 0 || context->cur_spin[1] != 0 ||
@@ -535,6 +535,22 @@ void cursor_pos_callback(GLFWwindow* window, double xpos, double ypos) {
   cursor_to_world_ray(context, context->cursor, context->hex->data.hover_start, context->hex->data.hover_end);
   add_transfer(&context->hex->data.hover_start, context->hex->context, offsetof(GPUHexContext, hover_start), sizeof(vec4)*2, context->render->current_frame, context->render);
 
+  // Hex intersections
+  float distance;
+  for(uint32_t r = 0; r < MAX_LOADED_REGIONS; r++) {
+    if(context->hex->regions[r] == NULL) {
+      continue;
+    } else if(context->hex->regions[r]->data.map != context->hex->data.current_map) {
+      continue;
+    }
+    for(uint32_t h = 0; h < REGION_HEX_COUNT; h++) {
+      if(ray_hex_intersect(&distance, context->hex->data.hover_start, context->hex->data.hover_end, r, h, context->hex)) {
+        context->hex->data.hovered_region = r;
+        context->hex->data.hovered_hex = h;
+        add_transfer(&context->hex->data.hovered_region, context->hex->context, offsetof(GPUHexContext, hovered_region), sizeof(uint32_t)*2, context->render->current_frame, context->render);
+      }
+    }
+  }
 }
 
 int main() {