From 260f05025631031b7cc4904805d5017feaf53eda Mon Sep 17 00:00:00 2001
From: Aldrik Ramaekers <aldrik.ramaekers@protonmail.com>
Date: Thu, 30 Jan 2020 21:11:12 +0100
Subject: initial commit

---
 src/camera.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 src/camera.c

(limited to 'src/camera.c')

diff --git a/src/camera.c b/src/camera.c
new file mode 100644
index 0000000..5bde9f9
--- /dev/null
+++ b/src/camera.c
@@ -0,0 +1,22 @@
+/* 
+*  BSD 2-Clause “Simplified” License
+*  Copyright (c) 2019, Aldrik Ramaekers, aldrik.ramaekers@protonmail.com
+*  All rights reserved.
+*/
+
+void camera_apply_transformations(platform_window *window, camera *camera)
+{
+	s32 x = (window->width/2)+(camera->x);
+	s32 y =  (window->height/2)+(camera->y);
+	glTranslatef(x, y, 0.0f);
+	glRotatef(camera->rotation, 0.0f, 0.0f, 1.0f);
+	glTranslatef(-x, -y, 0.0f);
+	
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+    
+    glOrtho(camera->x, window->width+camera->x, 
+            window->height+camera->y, camera->y, -100, 100);
+    
+	glMatrixMode(GL_MODELVIEW);
+}
\ No newline at end of file
-- 
cgit v1.2.3-70-g09d2