From e43bceafaba72d34dfbea1deecd56c2f694d704a Mon Sep 17 00:00:00 2001
From: neoraider <devnull@localhost>
Date: Tue, 24 Oct 2006 15:04:02 +0000
Subject: Beleuchtung und Rendering ge?ndert, um Schatten zu erm?glichen.

---
 light.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 light.c

(limited to 'light.c')

diff --git a/light.c b/light.c
new file mode 100644
index 0000000..dcea864
--- /dev/null
+++ b/light.c
@@ -0,0 +1,45 @@
+#include <stdlib.h>
+#include <zoom/light.h>
+#include <GL/gl.h>
+
+
+int nLights = 0;
+LIGHT *lights;
+
+static COLOR ambient;
+
+
+static void UpdateAmbient() {
+	glClearColor(ambient.r/(nLights+1), ambient.g/(nLights+1), ambient.b/(nLights+1), 1.0);
+}
+
+void SetAmbient(COLOR c) {
+	ambient = c;
+	
+	UpdateAmbient();
+}
+
+void AddLight(LIGHT light) {
+	if(nLights == 0)
+		lights = malloc(sizeof(LIGHT));
+	else
+		lights = realloc(lights, sizeof(LIGHT)*(nLights+1));
+	
+	lights[nLights] = light;
+	nLights++;
+	
+	UpdateAmbient();
+}
+
+void ResetLights() {
+	if(nLights > 0) {
+		free(lights);
+		nLights = 0;
+		UpdateAmbient();
+	}
+}
+
+void ApplyLightScale() {
+	glAccum(GL_LOAD, 1);
+	glAccum(GL_RETURN, nLights+1);
+}
-- 
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