From 49bb9312470a4dae0b57ade976f16aae1f23c598 Mon Sep 17 00:00:00 2001
From: Noah Metz <noah@metznet.ca>
Date: Sat, 9 Nov 2024 22:10:49 -0700
Subject: [PATCH] Added free cam

---
 client/src/main.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/client/src/main.c b/client/src/main.c
index 90f6ab6..79308e6 100644
--- a/client/src/main.c
+++ b/client/src/main.c
@@ -30,6 +30,8 @@ typedef struct ClientContextStruct {
 
   vec3    position;
 
+  vec3    velocity;
+
   vec2    rotation;
   int32_t key_spin[2];
   vec2    cur_spin;
@@ -41,6 +43,7 @@ typedef struct ClientContextStruct {
   float   key_spin_speed;
   float   cur_spin_speed;
   float   zoom_speed;
+  float   move_speed;
 } ClientContext;
 
 void* network_thread(void* data) {
@@ -131,9 +134,12 @@ VkResult main_thread(ClientContext* context) {
 
     glfwPollEvents();
     if((context->key_spin[0] != 0 || context->key_spin[1] != 0 ||
+       context->velocity[0] != 0 || context->velocity[1] != 0 || context->velocity[2] != 0 ||
        context->zoom != 0 ||
        context->cur_spin[0] != 0 || context->cur_spin[1] != 0 ||
        context->render->framebuffer_recreated == true) && frame > 0) {
+
+
       if(context->render->framebuffer_recreated == true) {
         context->render->framebuffer_recreated = false;
         VK_RESULT(update_hex_proj(context->render, context->hex));
@@ -155,6 +161,14 @@ VkResult main_thread(ClientContext* context) {
         context->rotation[1] = 0;
       }
 
+      context->position[0] += - context->velocity[2]*context->move_speed*cos(context->rotation[0])
+                            - context->velocity[0]*context->move_speed*sin(context->rotation[0]);
+
+      context->position[2] += context->velocity[0]*context->move_speed*cos(context->rotation[0])
+                            - context->velocity[2]*context->move_speed*sin(context->rotation[0]);
+
+      context->position[1] += context->velocity[1]*context->move_speed;
+
       context->distance += context->zoom*delta_time*context->zoom_speed;
       if(context->distance < 1) {
         context->distance = 1;
@@ -216,6 +230,51 @@ void key_callback(GLFWwindow* window, int key, int scancode, int action, int mod
       context->key_spin[1] += 1;
     }
     break;
+
+  case GLFW_KEY_UP:
+    if(action == GLFW_PRESS) {
+      context->velocity[2] += 1;
+    } else if(action == GLFW_RELEASE) {
+      context->velocity[2] -= 1;
+    }
+    break;
+  case GLFW_KEY_DOWN:
+    if(action == GLFW_PRESS) {
+      context->velocity[2] -= 1;
+    } else if(action == GLFW_RELEASE) {
+      context->velocity[2] += 1;
+    }
+    break;
+
+  case GLFW_KEY_LEFT:
+    if(action == GLFW_PRESS) {
+      context->velocity[0] -= 1;
+    } else if(action == GLFW_RELEASE) {
+      context->velocity[0] += 1;
+    }
+    break;
+  case GLFW_KEY_RIGHT:
+    if(action == GLFW_PRESS) {
+      context->velocity[0] += 1;
+    } else if(action == GLFW_RELEASE) {
+      context->velocity[0] -= 1;
+    }
+    break;
+
+  case GLFW_KEY_LEFT_SHIFT:
+    if(action == GLFW_PRESS) {
+      context->velocity[1] -= 1;
+    } else if(action == GLFW_RELEASE) {
+      context->velocity[1] += 1;
+    }
+    break;
+  case GLFW_KEY_SPACE:
+    if(action == GLFW_PRESS) {
+      context->velocity[1] += 1;
+    } else if(action == GLFW_RELEASE) {
+      context->velocity[1] -= 1;
+    }
+    break;
   }
 }
 
@@ -313,6 +372,7 @@ int main() {
     .key_spin_speed = 1.0,
     .cur_spin_speed = 1.0,
     .zoom_speed = 1.0,
+    .move_speed = 0.1,
   };
   if(context.window == NULL || context.render == NULL || context.ui == NULL || context.hex == NULL) {
     return VK_ERROR_OUT_OF_HOST_MEMORY;