Beleuchtung und Rendering ge?ndert, um Schatten zu erm?glichen.

1 files changed, 45 insertions, 0 deletions

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);
+}